YI

Yoshihisa Ishikawa

HI Hitachi: 11 patents #3,813 of 28,497Top 15%
OL Olympus: 6 patents #794 of 3,097Top 30%
OM Omron: 4 patents #761 of 3,089Top 25%
YC Yanmar Holdings Co.: 3 patents #176 of 636Top 30%
YC Yanmar Power Technology Co.: 3 patents #38 of 202Top 20%
FI Fujifilm Business Innovation: 1 patents #3,579 of 5,238Top 70%
Canon: 1 patents #14,899 of 19,416Top 80%
OC Olympus Optical Co.: 1 patents #1,517 of 2,334Top 65%
Overall (All Time): #120,398 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
7759837 Rotating electrical machine Toshio Ishikawa, Minoru Yabuki, Kazuo Tahara 2010-07-20
7701109 Rotating electrical machine Toshio Ishikawa, Minoru Yabuki, Hiroshi Kanazawa, Yuji Enomoto 2010-04-20
D583504 Light guiding member Toshimitsu Fujiwara, Atsushi Sawada, Isao Kobayashi 2008-12-23
5537271 Apparatus for loading a data recording disk Katsunori Kumai, Toshikazu Hayashi, Hiroshi Kodama 1996-07-16
4346159 Photosensitive element for electrophotography Shigeru Sadamatsu, Lyon S. Pu 1982-08-24