AI

Atsushi Ichikawa

HI Hitachi: 12 patents #3,472 of 28,497Top 15%
DE Denso: 4 patents #3,129 of 11,792Top 30%
HS Hitachi Video And Information Systems: 1 patents #142 of 269Top 55%
HO Hoya: 1 patents #757 of 1,290Top 60%
NS Nippon Soken: 1 patents #783 of 1,540Top 55%
Bridgestone: 1 patents #1,586 of 2,860Top 60%
RI Railway Technical Research Institute: 1 patents #70 of 233Top 35%
HC Hitachi Computer Peripherals Co.: 1 patents #41 of 133Top 35%
Overall (All Time): #225,441 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7554296 Method and apparatus for detecting charged state of secondary battery based on neural network calculation Satoru Mizuno, Atsushi Hashikawa, Shoji Sakai, Takaharu Kozawa, Naoki Mizuno +1 more 2009-06-30
7554297 Automotive battery state monitor apparatus Takeshi Sada, Makoto Taniguchi 2009-06-30
7514849 Two-dimensional moving apparatus Masayasu Sato 2009-04-07
7317300 Automotive battery state monitor apparatus Takeshi Sada, Makoto Taniguchi 2008-01-08
7061247 Electric power generating system for a vehicle Takatoshi Inokuchi, Yasuhiro Takase, Hiroshi Shibata, Makoto Taniguchi 2006-06-13
6870528 Portable mobile unit 2005-03-22
6333075 Method of forming a film on strip material and apparatus thereof 2001-12-25
5777952 Thin bias magnet unit for magneto-optical recording device Hajime Nishimura, Akio Yabe, Yuji Yokoyama 1998-07-07
5668787 Mark length recording system with trial writing to maximize recording power and error recovery Kazuo Shigematsu, Yoji Tomono, Toshiyasu Hattori 1997-09-16
5621576 Optical head for optical memory disk recording device with elastic support in a direction parallel to a recording surface Yoshiaki Yamauchi, Shozo Saegusa, Akio Yabe, Akira Saito, Hiromitu Mori 1997-04-15
5537370 Magnetooptical-disk recording and/or reproducing apparatus for a 5.25 inch large capacity magnetooptical-disk Kazuo Shigematsu, Yoji Tomono, Toshiyasu Hattori 1996-07-16
5420832 Half height magnetooptical-disk recording and/or reproducing apparatus for a 5.25 inch large capacity magnetooptical-disk Kazuo Shigematsu, Yoji Tomono, Toshiyasu Hattori 1995-05-30
5418763 Disc recording system Masateru Watanabe, Tokuya Kaneda, Toshihiko Ishizaka, Shigeru Nakamura 1995-05-23
5412633 Optical disk apparatus with galvanomirror having movable reflecting surfaces cooperating with fixed reflecting surfaces Yoshiaki Yamauchi, Akira Saito 1995-05-02
5287811 Flexible branching apparatus in superconducting magnetically levitated railway having variable cross-section main flexible beam Akio Matsuura, Genpachi Anami, Ichirou Sugimoto 1994-02-22
5220459 Optical disk driving with inertial damping spring supporting lens holder Akira Saito, Yukio Sumiya 1993-06-15
4838649 Apparatus for driving objective lens Masamichi Ito, Akira Saito 1989-06-13
4786992 Apparatus and method for controlling tape tension using acceleration and average tension deviation information to adjust motor drive currents Fujio Tajima, Hiroshi Maejima, Munetake Kanna 1988-11-22
4752117 Objective lens driving device Masayuki Abe, Akio Yabe, Hideo Onuki, Shigefumi Hida 1988-06-21
4407462 Web drive apparatus Fujio Tajima, Isao Shimizu 1983-10-04