Information and Communication Sciences

Yamanaka Takao

  (山中 高夫)

Profile Information

Affiliation
Associate Professor, Faculty of Science and Technology, Department of Information and Communication Sciences, Sophia University
Degree
Doctor of Philosophy in Engineering(Tokyo Institute of Technology)
修士(工学)(東京工業大学)
博士(学術)(東京工業大学)

Contact information
takao-ysophia.ac.jp
Researcher number
20433790
J-GLOBAL ID
200901034749422122
researchmap Member ID
5000102683

External link

2008-present Associate Professor, Information & Communication Sciences, Sophia University
2006-2008 Assistant Professor, Electrical Engineering, Sophia University
2004-2006 Postdoctoral Fellow, Computer Science, Texas A&M University
2001-2004 Ph.D. student, Electrical Engineering, Tokyo Institute of Technology

(Subject of research)
Hardware implementation of neural computation model in biological olfaction and its application to odor sensors
Human information science research project
Olfactory interface
Odor-sensor signal processing based on olfactory neurodynamics model


Research History

 3

Papers

 31

Misc.

 8
  • Yamanaka Takao, Nimsuk Nitikarn, Nakamoto Takamichi
    Proceedings of the IEICE General Conference, 2004 350-350, Mar 8, 2004  
  • Wadatsumi Junji, Yamanaka Takao, Yoshikawa Kenjiro, Nakamoto Takamichi
    Proceedings of the IEICE General Conference, 349-349, 2004  
  • T Yamanaka, B Wyszynski, T Nakamoto
    BOSTON TRANSDUCERS'03: DIGEST OF TECHNICAL PAPERS, VOLS 1 AND 2, 1140-1143, 2003  
    The smell reproduction technique in addition to that for vision and hearing will be useful in the fields of virtual environments, games and e-commerce. In this study, citrus flavors were electronically recorded using. "odor recorder" composed of quartz crystal microbalance odor sensors. First, an artificial orange flavor composed of 14 constituents was successfully recorded with its approximated recipe of 3 odor components. The human sensory test revealed, that the reproduced odor was close to the target odor for the human olfaction. Next, we tried to record natural smells from citrus essential oils. The mixture smells of two essential oils were successfully recorded using the odor recorder.
  • T Yamanaka, K Yoshikawa, T Nakamoto
    PROCEEDINGS OF THE IEEE SENSORS 2003, VOLS 1 AND 2, 590-595, 2003  
    The smell reproduction technique in addition to those for vision and hearing will be useful in the fields of virtual environments, games and e-commerce in fragrances and foods. We have developed an odor recorder to record odors using quartz crystal microbalance sensors and to reproduce them based on the recorded data. In this paper, the results of recording dynamical changes in odors in the atmosphere are described. The dynamical changes in the odors were successfully recorded in spite of the rapid change of the odor concentration over a few seconds due to the airflow turbulence. First, the change in a binary mixture of apple-flavor components was successfully recorded using the odor recorder based on a feedback control. Next, the changes in four fruit flavors, apple, mandarin, pineapple, and banana flavors, were successfully recorded using the odor recorder based on a pattern classification method.
  • YAMANAKA Takao, MATSUMOTO Ryosuke, NAKAMOTO Takamichi
    Technical report of IEICE. OME, 102(255) 7-12, Jul 23, 2002  
    The new method for the odor recorder, electronically recording the recipe of odors or scents made up of many components, was proposed. Although the apple flavors have been recorded with the mixture of five components using the odor recorder in previous work, the number of odor components should be increased to expand the applicable range of odors. Since the collinearity problem of the odor sensor array became apparent with the increase of the components, the new method based on the variable transformation using SVD (Singular Value Decomposition) was developed in this paper to extract the effective subspace of the sensor outputs for the recipe exploration. As a result, the sensor-array response pattern of the reproduced odor with the 8-component recipe almost agreed with that of the target apple flavor. Furthermore, the human sensory tests revealed that the smell of the approximated odor was identical to that of the target flavor.

Books and Other Publications

 1

Presentations

 39

Research Projects

 5

Other

 5
  • Apr, 2007
    理工学部の学生を対象とした科学技術英語の講義において,インターネットにおける最新の英文ニュースを活用して,学生が興味を持って英文を読む学習ができるように工夫している.
  • Apr, 2006
    講義資料や演習の解答をホームページからダウンロードできるようにして,学生が内容を理解する手助けになるように工夫してくる.
  • Apr, 2006
    講義アンケートの結果を講義に反映できるように,3回程度講義を行った段階で,一度講義アンケートをとっている.また,アンケートの集計結果を学生に提示し,講義に反映していることを学生に伝えることで,学生の講義に対するモチベーションが高くなるように工夫している.
  • Apr, 2006
    研究室に所属する学生が効率的に研究活動が行えるように,様々な情報をウェブベースのソフトウェア(wiki)により共有している.卒業論文や修士論文に加えて,学会発表資料や研究室のミーティング資料などを蓄積して,今後活用できるように工夫している.