RK

Ryoichi Koshida

HI Hitachi: 6 patents #6,582 of 28,497Top 25%
Overall (All Time): #891,473 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5363829 Ignition distributor of internal combustion engine Makoto Onisawa, Ken Yoshioka, Makoto Koizumi, Hiromitsu Nagae 1994-11-15
5094219 Distributor with ignition coil Hiromitsu Nagae, Nariyoshi Kobayashi 1992-03-10
5057652 Distributor for an internal combustion engine Hiromitsu Nagae, Takanori Satou 1991-10-15
5036827 Ignition coil-incorporated distributor for internal combustion engines Junichi Shimada, Kazutoshi Kobayashi, Noboru Sugiura, Kazuhiko Kawakami 1991-08-06
4979486 Ignition coil-incorporated distributor for internal combustion engines Junichi Shimada, Kazutoshi Kobayashi, Noboru Sugiura, Kazuhiko Kawakami 1990-12-25
4773381 Rotational signal detecting apparatus for internal combustion engine 1988-09-27