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Featured researches published by Yasuzumi Ochiai.


SPIE's International Symposium on Smart Materials, Nano-, and Micro- Smart Systems | 2002

Magnetic field distribution of strong hybrid magnet in high torque motor

Kazuya Oguri; Akihiro Mizutani; Sanshiroh Ogino; Yasuzumi Ochiai; Masahiro Kawahata; Yoshitake Nishi

A variable reluctance hybrid magnet has been developed to apply new type of high torque motors. A permanent magnet, electromagnet and yoke construct the variable reluctance hybrid magnet. From an engineering point of view, it is important to know the magnetic field around a variable reluctance hybrid magnet. Based on the results of magnetic flux density measurement around the hybrid variable reluctance magnet, the high magnetic flux density was found at edges and joints. The high magnetic flux density was also obtained with electrical current of 10 A at optimum setting form. Therefore, we concluded that the strong force of rotor of the hybrid motor was generated by high surface flux density of the hybrid magnet.


Archive | 1999

Hybrid-type magnet and stepping motor including same

Yasuzumi Ochiai; Yoshitake Nishi; Kazuya Oguri; Sanshiro Ogino; Hiroyuki Makabe


Ieej Transactions on Industry Applications | 2000

Derivative State Constrained Optimal H2 Control for Oscillatory Systems and its Application

Thanit Trisuwannawat; Kitti Tirasesth; Michihiko Iida; Noriyuki Komine; Yasuzumi Ochiai


Archive | 2000

Linear actuator using basic factor

Yoshitake Nishi; Yasuzumi Ochiai; Sanshiro Ogino; Kazuya Oguri; Kyogi Uchikawa; 據義 内川; 和也 小栗; 三四郎 荻野; 康住 落合; 義武 西


Archive | 1998

Hybrid magnet and stepping motor equipped with the same

Hiroyuki Makabe; Yoshitake Nishi; Yasuzumi Ochiai; Sanshiro Ogino; Kazuya Oguri; 和也 小栗; 宏行 真壁; 三四郎 荻野; 康住 落合; 義武 西


Ieej Transactions on Industry Applications | 2007

New Tuning Formulas for Two-Degree of Freedom PID Controllers and the Application to Level Control Systems

Taworn Benjanarasuth; Jongkol Ngamwiwit; Noriyuki Komine; Yasuzumi Ochiai


Archive | 2002

Hybrid type magnet

Hiroyuki Makabe; Yoshitake Nishi; Yasuzumi Ochiai; Sanshiro Ogino; Kazuya Oguri; 和也 小栗; 宏行 真壁; 三四郎 荻野; 康住 落合; 義武 西


The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society | 2000

Derivative State Constrained Optimal H_2 Control for Oscillatory Systems

Thanit Trisuwannawat; Kitti Tirasesth; Michihiko Iida; Noriyuki Komine; Yasuzumi Ochiai


The Proceedings of the Materials and processing conference | 2009

420 Temperature Dependent Force of Hybrid Magnet

Shun Saso; Yasuzumi Ochiai; Yoshitake Nishi


Proceedings of the School of Information Technology and Electronics of Tokai University | 2005

CDM Based Two-Degree of Freedom PID Controllers Tuning Formulas(SCHOOL OF INFORMATION TECHNOLOGY AND ELECTRONICS)

Taworn Benjanarasuth; Jongkol Ngamwiwit; Noriyuki Komine; Yasuzumi Ochiai

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Thanit Trisuwannawat

King Mongkut's Institute of Technology Ladkrabang

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Jongkol Ngamwiwit

King Mongkut's Institute of Technology Ladkrabang

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Kitti Tirasesth

King Mongkut's Institute of Technology Ladkrabang

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Taworn Benjanarasuth

King Mongkut's Institute of Technology Ladkrabang

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