Authorship：Lead author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：Cambridge University Press (CUP)  

Abstract

This research proposes a virtual environment (VE) for co-designing in early childhood education and care settings using a social VR platform with 3D-scanned childcare rooms. Co-design workshops were analyzed focusing on perceived presence and experience and workshop outcomes. The results indicate a high level of presence in the VE, with unique advantages like facilitating 3D prototyping. However, challenges such as unbalanced prototyping tools distribution were also noted. The study highlights the potential of VEs with 3D scanned rooms in co-design.

DOI： 10.1017/pds.2024.114

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Publishing type：Research paper (scientific journal)  

DOI： 10.1088/2631-8695/ad1caf

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Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Human Interface Society  

Improving the quality of childcare and therapeutic intervention requires enhancing the skills of workers. To address this, we have developed a tool for on-site workers in child education facilities to reflect on their activities. Specifically, we created the VisRef system, an assistive tool for video reflection using smartphones and smartwatches, and conducted practical experiments. In this system, workers wear a smartwatch and press a button on the screen when they encounter moments they want to review, recording the preceding few minutes of video. The button press alters tags of the record and allows the addition of text memos through voice recognition. These records are immediately posted on a chat system and shared with stakeholders. We conducted empirical experiments utilizing the system in Japanese daycare services for children requiring support (afterschool care services) and a nursery school. Through surveys and interviews, we examined whether the system contributes to enhancing on-site activities. The results demonstrated that the system aids in gaining deeper insights into children and helps workers reconsider their actions, which may lead to effective improvement in their performance.

DOI： 10.11184/his.26.1_87

CiNii Research

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Publishing type：Research paper (international conference proceedings)   Publisher：Springer  

DOI： 10.1007/978-3-031-59988-0_10

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Other Link： https://dblp.uni-trier.de/db/conf/hci/hci2024-35.html#YamamotoTN24

Publishing type：Research paper (international conference proceedings)   Publisher：ScholarSpace  

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Other Link： https://dblp.uni-trier.de/rec/conf/hicss/2024

Publishing type：Research paper (international conference proceedings)  

DOI： 10.1109/ISCIT63075.2024.10793683

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Other Link： https://dblp.uni-trier.de/db/conf/iscit/iscit2024.html#Sae-JiaLTSTOP24

Publishing type：Research paper (international conference proceedings)  

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Publishing type：Research paper (international conference proceedings)   Publisher：ACM  

DOI： 10.1145/3628516.3659398

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Other Link： https://dblp.uni-trier.de/db/conf/acmidc/idc2024.html#KinnulaNRT24

Publishing type：Research paper (international conference proceedings)   Publisher：Springer Nature Switzerland  

DOI： 10.1007/978-3-031-35705-3_19

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Publishing type：Research paper (international conference proceedings)   Publisher：Springer Nature Switzerland  

DOI： 10.1007/978-3-031-35572-1_11

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Publishing type：Research paper (international conference proceedings)   Publisher：The Design Society  

DOI： 10.35199/epde.2023.63

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Publishing type：Research paper (international conference proceedings)   Publisher：Springer  

DOI： 10.1007/978-3-031-34668-2_20

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Other Link： https://dblp.uni-trier.de/db/conf/hci/hci2023-26.html#YasuokaMNTH23

Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

DOI： 10.1109/TENCON58879.2023.10322379

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Other Link： https://dblp.uni-trier.de/db/conf/tencon/tencon2023.html#KrutphongLTOSTP23

Publishing type：Research paper (international conference proceedings)   Publisher：Springer  

DOI： 10.1007/978-3-031-35572-1_19

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Other Link： https://dblp.uni-trier.de/db/conf/hci/hci2023-4.html#HamaguchiNTYMSAKSN23

Publishing type：Research paper (international conference proceedings)   Publisher：Springer  

DOI： 10.1007/978-3-031-34668-2_11

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Other Link： https://dblp.uni-trier.de/db/conf/hci/hci2023-26.html#YasuokaMNT23

Publishing type：Research paper (international conference proceedings)   Publisher：Springer  

DOI： 10.1007/978-3-031-35699-5_18

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Other Link： https://dblp.uni-trier.de/db/conf/hci/hci2023-20.html#MiyataTNYHS23

Publishing type：Research paper (international conference proceedings)   Publisher：Springer Nature Singapore  

DOI： 10.1007/978-981-19-4472-7_204

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Authorship：Lead author   Publishing type：Research paper (scientific journal)  

DOI： 10.1155/2022/8479212

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Publishing type：Research paper (scientific journal)  

DOI： 10.1557/s43580-022-00329-9

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Publishing type：Research paper (scientific journal)  

DOI： 10.20965/ijat.2022.p0471

Scopus

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Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Cambridge University Press (CUP)  

Abstract

This study aims to investigate the good way to generate insight through empathy with users. The fifteen experiment participants drew thinking processes of understanding users and defining insight statements while generating insight statements based on a given interview transcript. The thinking processes were assessed by qualitative coding, and the insight statements were evaluated. The results identified the types of thinking that should be avoided when gaining insights. This paper proposes a framework to categorise designers’ process of gaining insight.

DOI： 10.1017/pds.2022.91

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Publishing type：Research paper (international conference proceedings)   Publisher：Cambridge University Press (CUP)  

Abstract

This study aims at developing a new user research method that uses IoT sensors embedded at users' homes to enable users to recall their memories. The proposed method was evaluated by experiments where four participants individually created user journey maps with quantity data that was collected for seven days. The results showed that IoT sensor data increased the quantity, clarity, and accuracy of recalled memories. This study argues that IoT sensors can be an effective approach to increasing user research quality by triggering users' memories without interfering with users' ordinary lives.

DOI： 10.1017/pds.2022.63

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Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

DOI： 10.1088/2631-8695/ac4a49

Web of Science

CiNii Research

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Other Link： https://iopscience.iop.org/article/10.1088/2631-8695/ac4a49

Authorship：Lead author,　Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：Informa {UK} Limited  

DOI： 10.1080/15710882.2018.1546321

Scopus

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Publishing type：Part of collection (book)   Publisher：Springer Singapore  

DOI： 10.1007/978-981-16-0084-5_2

Scopus

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Authorship：Lead author   Publishing type：Research paper (international conference proceedings)   Publisher：The Design Society  

DOI： 10.35199/epde.2021.29

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Authorship：Lead author   Publishing type：Research paper (international conference proceedings)   Publisher：The Design Society  

DOI： 10.35199/epde.2021.30

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Publishing type：Research paper (scientific journal)   Publisher：{IOP} Publishing  

DOI： 10.1088/2399-6528/abce9b

Scopus

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Publishing type：Research paper (scientific journal)   Publisher：Cambridge University Press (CUP)  

DOI： 10.1017/dsi.2019.153

Scopus

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Language：English   Publishing type：Research paper (scientific journal)  

DOI： 10.5057/ijae.IJAE-D-18-00009

Web of Science

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Authorship：Lead author,　Corresponding author  

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Publishing type：Research paper (international conference proceedings)  

Scopus

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Authorship：Lead author,　Corresponding author  

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Event date： 2024

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Event date： 2024

Language：Japanese  

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Event date： 2023.8

Language：Japanese  

本研究では静電吸着デバイスの複曲面対応に向け、単純な入力により複曲面を生成するAuxeticパターンを用いた構造を提案する。具体的には負のポアソン比を生み出すAuxeticパターンの二重湾曲現象を利用することで内法が拡大しながら複曲面を生成する構造を作成しシミュレーションで評価した。この構造で静電吸着デバイスを複曲面対応させることにより、平面でピックアップした薄膜を複曲面上に貼付することが可能になると期待される。

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Event date： 2023.3

Language：English  

The capillary force micromanipulation technique is a method to manipulate objects by generating a liquid bridge between the surface of a probe and the surface of an object. This work aims to verify whether the capillary force between a flat object and a probe with coaxially aligned hydrophilic and hydrophobic surfaces can be controlled as desired to pick-and-place the object. Liquid is supplied to the surface of the probe with a built-in supply channel. The change of the liquid bridge’s profile is observed from the bottom and side of the object, which is then compared with the obtained capillary force-displacement data. The effectiveness of the proposed manipulation technique will be verified by interpreting the capillary phenomenon.

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Event date： 2023.3

Language：Japanese  

本研究では、導電性エラストマー（TPU）を用いた帯状柔軟電極を有した双極型静電吸着デバイスを提案し、高分子薄膜の静電吸着による面接触把持と曲面自在貼付が可能であることを検証する。具体的には、高分子薄膜貼付け先としての曲面と帯状柔軟電極間の弾性接触による圧力分布の解析に基づく機構を設計・製作し、これを用いた高分子薄膜の平面把持及び曲面貼付実験における薄膜の力学状態の観察から提案機構の有効性を示す。

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Event date： 2023.3

Language：Japanese  

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Event date： 2023.3

Language：English  

A bipolar electrostatic chuck is a gripping device suitable for handling thin and flexible objects such as semiconductor wafers, glass and polymer films. Existing studies mainly focused on increasing the gripping force, such as smoothening the contact surface of the device. However, handling methods that include not only grasping, but also releasing of objects have not been developed. This study verifies the effect of the changeable stiffness at the contact interface on the grasping and releasing of an object handled using a bipolar electrostatic chuck. For object handling, efficient grasping and releasing are two fundamental functions needed of any gripping device. To ensure a smooth pick-and-place process, a significant difference between the maximum (grasping) and minimum gripping force (releasing) is desired. Thus, this study proposes a bipolar electrostatic chuck with changeable stiffness at the contact surface. The bipolar electrodes act as heaters, allowing the stiffness of the surface to be controllable by adjusting their temperature. For grasping, by decreasing the stiffness, a closer contact with an object can be achieved and the chuck’s maximum gripping force can be increased. Furthermore, during releasing, the chuck is expected to detach away from the object easily.

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Event date： 2023

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Event date： 2023

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Event date： 2022.3

Language：English  

This study describes the development of a new probe that uses a combination of hydrophilic (acrylic) and hydrophobic (PTFE) surfaces to improve object micromanipulation based on capillary force. By using materials with different wettability for the inner and outer surfaces of the probe, the goal is to control the capillary force by only changing the volume of the droplet between the probe and the object. Therefore, the detachment of objects is more convenient as this new method eliminates the need to supply water below the object. Results show that the forces generated during the gripping and detaching process have a significant difference in magnitude. This new probe is highly applicable for stable micromanipulation without causing any damage to the object.

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Event date： 2022.3

Language：English  

The purpose of this study is to develop collective beam structure ESCs with elastic hinges as rotational-degree-of-freedom structure at the tip and to verify the influence of the structure while facing planar and curved surfaces. Electrostatic chucks (ESC) are devices used in wafer manipulation but can only deal with plain targets. Collective beam structure ESCs, although having the potential for dealing with curved surfaces, lack the compliance between tip and surface, resulting in poor performance. In this study, the elastic hinge is made from phosphor bronze and other structures are made by fused deposition modelling technology. The specification of the foot structure ESC is firstly determined through calculation. Then experiments are carried out at different positions on the plain and curved surfaces with collective beam structure ESCs with and without the hinge. The results of experiments are used to verify and analyze the influence of the elastic structure on the foot structure ESC while facing the planar and curved surfaces. In the end, the effect of elastic hinge is verified, and the results are expected to contribute to the development of foot structure ESC with higher performance facing different target surfaces.

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Event date： 2022.3

Language：Japanese  

本研究では、微細毛先端に回転自由度を有する微細毛双曲型静電チャックの開発を行った。三次元造形法にて作成した異なる回転自由度を持つデバイスの吸着力測定から、自由度の増加により吸着性能が飛躍的に向上することを示した。また自由度の最も高い球対偶を持つモデルを用いて、薄膜対象の把持離脱、曲面への貼り付けと曲面対象の把持実験を行うことで、従来のマニピュレーション手法に代わる新たな手法としての有用性を示した。

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Event date： 2022.3

Language：Japanese  

本研究の目的は、微細毛静電チャックの表面柔軟性保持のためのシート状交互五層（導電性・絶縁性）高分子複合材料を開発することである。導電性、絶縁性のシートを五層交互に重ね、複合材を作成した。その複合材を切断し、柔軟な梁構造を持つ微細毛静電チャックを実現した。また、それらを積層し、有効静電吸着面を大面積化した。微細毛静電チャックの性能評価は吸着力、導電・絶縁性能、表面柔軟性を計測することにより実施した。

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Event date： 2021.12

Language：Japanese  

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Event date： 2021.9

Language：Japanese  

As a device for pasting film objects on curved surfaces, this paper proposed a device, composed of a shape adaptable mechanism and an elastic electrostatic chuck, which is operated by two robot arms. As the shape adaptable mechanism generating a wide range of variable curvature radii, a single-DOF scissor mechanism with an elastic element was presented. It was shown through a numerical analysis and prototyping that the proposed scissor mechanism without an elastic element can generate pure circular curves of curvature from zero to a certain value. Forward kineto-static analysis has been conducted for the proposed elastic scissor mechanism to clarify the effect of the location and characteristics of the elastic element in the mechanism on its generated shape. The results showed that the proposed mechanism can generate a wide range of multiple curvature radii.

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Event date： 2021.3

Language：Japanese  

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Event date： 2021

Language：Japanese  

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Event date： 2021

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Event date： 2021

Language：Japanese  

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Other Link： https://ndlsearch.ndl.go.jp/books/R000000004-I032037574

Event date： 2021

Language：Japanese  

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Event date： 2021

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Event date： 2020

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Event date： 2020

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Event date： 2020

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Event date： 2020

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Event date： 2019.3

Language：English  

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Event date： 2019

Language：Japanese  

Impacts of disciplinary diversity on group creativity has been examined. This study aims to investigate impacts of disciplinary diversity on individual viewpoint and design outcomes in group ideation. In a design workshop, the author assessed creativities of ideas and individual awareness of ideas creativity in order to verify design outcomes and individual viewpoint. As a result, disciplinary diversity increases individual awareness of ideas creativity but decreases creativity of ideas.

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Event date： 2019

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Event date： 2019

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Language：English   Presentation type：Oral presentation (general)  

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Language：English   Presentation type：Oral presentation (general)  

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Language：Japanese   Presentation type：Oral presentation (general)  

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Language：English   Presentation type：Oral presentation (general)  

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Language：Japanese   Presentation type：Poster presentation  

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Language：Japanese   Presentation type：Oral presentation (general)  

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Language：Japanese   Presentation type：Poster presentation  

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Language：Japanese   Presentation type：Oral presentation (general)  

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Language：English   Presentation type：Oral presentation (general)  

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Presentation type：Oral presentation (general)  

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Presentation type：Oral presentation (general)  

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Presentation type：Oral presentation (general)  

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Presentation type：Poster presentation  

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Language：Japanese   Presentation type：Oral presentation (general)  

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Presentation type：Oral presentation (general)  

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Presentation type：Poster presentation  

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Presentation type：Oral presentation (general)  

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Presentation type：Oral presentation (general)  

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Presentation type：Oral presentation (general)  

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Presentation type：Oral presentation (general)  

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Presentation type：Oral presentation (general)  

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Award type：Award from international society, conference, symposium, etc. 

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