YK

Yasuhiko Kitajima

Nissan Motor Co.: 26 patents #131 of 8,689Top 2%
Tdk: 6 patents #953 of 3,796Top 30%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Overall (All Time): #108,806 of 4,157,543Top 3%
33
Patents All Time

Issued Patents All Time

Showing 1–25 of 33 patents

Patent #TitleCo-InventorsDate
7800476 Coil component and method for producing the same Daisuke Urabe, Takashi Ishii, Hitoshi Sasaki, Koji Shimura, Yoshiyuki Takanashi 2010-09-21
7775060 Drive unit for electric vehicle Yuki Nakajima, Masahiro Tsukamoto, Masakazu Kobayashi, Yutaro Kaneko, Hiroyuki Kaneko +5 more 2010-08-17
7746207 Coil device Mitsuhiro Yamashita, Takashi Nagasaka, Hideki Miura, Yasuhiro Matsukawa, Kazuo Sato +3 more 2010-06-29
7710063 Electric power converter Kantaro Yoshimoto, Kengo Maikawa 2010-05-04
7683511 Power converter and related method Makoto Iwashima, Akihiro Hanamura, Masanori Yamagiwa 2010-03-23
7659689 Power conversion apparatus and method and automobile Kantaro Yoshimoto, Kengo Maikawa 2010-02-09
7656689 Power converter and control method for a power converter using serially-connected DC power sources Kantaro Yoshimoto 2010-02-02
7557527 Electrical power converter and control method Kantaro Yoshimoto, Kengo Maikawa 2009-07-07
7551053 Coil device Mitsuhiro Yamashita, Takashi Nagasaka, Hideki Miura, Yasuhiro Matsukawa, Kazuo Sato +3 more 2009-06-23
7370739 Shock absorber with a function of transmission of electric power between sprung and unsprung parts of a vehicle Masahiro Tsukamoto, Kouichirou Yonekura, Tetsuya Niikuni 2008-05-13
7183728 Motor drive system and process Kantaro Yoshimoto 2007-02-27
7122991 Power conversion and vehicle Kantaro Yoshimoto, Masanori Yamagiwa, Ryuuta Yamaguchi, Yutaka Tajima, Yasuaki Hayami 2006-10-17
7112931 Motor control device and motor control method 2006-09-26
7034493 Motor control apparatus and motor control method Kantaro Yoshimoto 2006-04-25
7030526 Integrated drive motor/differential/inverter unit with improved housing for a vehicle Masahiro Tsukamoto, Yuki Nakajima, Toshiro Shinohara, Hiroyuki Kaneko, Makoto Iwashima +5 more 2006-04-18
6940387 Coil-embedded dust core and method for manufacturing the same Kazuhiko Shibata, Takashi Nagasaka, Junetsu Tamura, Hideharu Moro, Tsutomu Chou +1 more 2005-09-06
6899270 Noncontact reader/writer, information communication system using the same, and management system using the same Keiichiro Obayashi, Nobuhiko Fujii 2005-05-31
6861813 Motor control apparatus and motor control method Kantaro Yoshimoto 2005-03-01
6791445 Coil-embedded dust core and method for manufacturing the same Kazuhiko Shibata, Takashi Nagasaka, Junetsu Tamura, Hideharu Moro, Tsutomu Chou +1 more 2004-09-14
6768280 Motor control apparatus 2004-07-27
6727675 Motor control apparatus and motor control method Kantaro Yoshimoto 2004-04-27
6674262 Motor control apparatus and motor control method Masahiro Tsukamoto, Kouichirou Yonekura, Kantaro Yoshimoto 2004-01-06
6486632 Control device for motor/generators Keiji Okushima, Shinichiro Kitada, Toshio Kikuchi, Yutaro Kaneko 2002-11-26
6341584 Valve timing control device and method for vehicle engine Hiroyuki Itoyama, Yoshitaka Deguchi 2002-01-29
6253127 Engine startup control device and control method Hiroyuki Itoyama, Yoshitaka Deguchi 2001-06-26