YY

Yoshihiko Yoshikawa

Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
KC Kokusai Denshin Denwa Co.: 1 patents #219 of 382Top 60%
SI Sumitomo Rubber Industries: 1 patents #1,096 of 1,637Top 70%
Overall (All Time): #1,060,439 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5154570 Vertical shaft pump Shizuichi Sakamoto, Sumio Sudo 1992-10-13
4683440 High-frequency amplifier device 1987-07-28
4408207 Angular error detecting device 1983-10-04
4384646 Pressurized preservation container Noriaki Sakamoto 1983-05-24
4345255 Antenna feed system Keigo Komuro, Matsuichi Yamada, Katsuhiko Aoki, Fumio Itoh, Fumio Takeda +1 more 1982-08-17