HI

Hiroshi Ishiyama

DE Denso: 8 patents #1,668 of 11,792Top 15%
TO Toyota: 4 patents #6,703 of 26,838Top 25%
AI Aisin: 3 patents #81 of 1,000Top 9%
SI Sumitomo Heavy Industries: 3 patents #164 of 917Top 20%
TC Toyoda Gosei Co.: 3 patents #706 of 2,296Top 35%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
NC Nippondenso Co.: 1 patents #1,765 of 3,479Top 55%
RE Renesas Electronics: 1 patents #2,739 of 4,529Top 65%
NI Nifco: 1 patents #245 of 650Top 40%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
NE Nec Electronics: 1 patents #715 of 1,789Top 40%
SO Sony: 1 patents #17,262 of 25,231Top 70%
Overall (All Time): #143,892 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 26–27 of 27 patents

Patent #TitleCo-InventorsDate
5632351 Power converter and electric car drive system employing the same — 1997-05-27
5052009 Semiconductor laser device and process of assembling the same Kunio Tsuboi 1991-09-24