Published papers

© 2018 In recent years, with the popularization of 3D-CAD, various curved surface shapes have been used in the styling of industrial products. However, evaluation and control of shape features are done in trial and error based on the experience and intuition of the designer, causing the inefficiency of styling design. Therefore, this study aims to support the styling design by quantifying cognitive characteristics in curved surface shape. First, this research proposed total absolute curvature to quantify “complexity”, which is one of the shape features related to “beauty”, and described its geometric meaning as the total area of the Gauss map on the curved surface shape. Next, the tangible calculation method is shown by applying it to the curved surface shape represented by a triangular polygon mesh. Then, sensory evaluation experiments were carried out using three types of shapes generated by extrusion, rotation, and emergent shape generation system to confirm the applicability of the proposed quantification method. Finally, the result revealed that the logarithmic approximation between the proposed index and human perceived “complexity”.

The 5th International Conference on Design Engineering and Science, ICDES 2020(online)

The14th International Conference on Design Principles & Practices(Virtual presentation Session)

AIが発想力を持つと近い将来モノづくり産業がどう変わるかという展望を述べた。また、デザインにおける「哲学」の重要性について述べた。

© 2019, Springer Nature Switzerland AG. This study aims to quantify the sense of depth using optics simulation by the following two steps. First, the relationship between an artifact and the sense of depth was represented using a fishbone diagram, which can clarify for clarifying mutual relationship among the physical properties of the factors related to the sense of depth (i.e. the lightness and the saturation). Second, to determine which factor is affecting the sense of depth and in what proportions, a sensory evaluation experiment was conducted based on Scheffe’s paired comparison and using the evaluation samples made by optical simulation. The results of this experiment indicate the lightness represents an important parameter in the feeling of the sense of depth.

© 2018 Faculty of Mechanical Engineering and Naval Architecture. All rights reserved. This research conducts comparative analysis of domestic and international articles for industrial design and engineering design domains to clarify the characteristics of the two design domains, as well as to derive the future issues for design integration. Various articles from the domestic and international societies were extracted and were evaluated from the viewpoint of multispace design model. In addition, the future issues for facilitating the design integration between industrial designers and engineering designers were investigated.