KO

Keiji Oda

HI Hitachi: 27 patents #1,104 of 28,497Top 4%
HC Hitachi Car Engineering Co.: 25 patents #12 of 465Top 3%
Bridgestone: 4 patents #601 of 2,860Top 25%
HS Hitachi Automotive Systems: 3 patents #507 of 1,636Top 35%
HC Hitachi Automotive Engineering Co.: 1 patents #156 of 314Top 50%
📍 Hitachinaka, JP: #122 of 2,447 inventorsTop 5%
Overall (All Time): #103,460 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 26–34 of 34 patents

Patent #TitleCo-InventorsDate
6208054 Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine Fumio Tajima, Yutaka Matsunobu, Shouichi Kawamata, Suetaro Shibukawa, Osamu Koizumi 2001-03-27
6188157 Parmanent magnet dynamo electric machine Fumio Tajima, Yutaka Matsunobu, Shouichi Kawamata, Suetaro Shibukawa, Osamu Koizumi 2001-02-13
6133662 Permanent magnet dynamoelectric rotating machine and electric vehicle equipped with the same Yutaka Matsunobu, Fumio Tajima, Takashi Kobayashi, Shouichi Kawamata, Suetaro Shibukawa +1 more 2000-10-17
6034460 Permanent magnet rotating electric machine and electrically driven vehicle employing same Fumio Tajima, Yutaka Matsunobe, Shouichi Kawamata, Suetaro Shibukawa, Osamu Koizumi 2000-03-07
5936323 Permanent magnet rotation type rotary machine and manufacturing method thereof Suetaro Shibukawa, Kiyoshi Hirano, Yoshikazu Kadowaki, Fumio Tajima 1999-08-10
5886433 Dynamoelectric machine Hiroshi Hamano, Suetaro Shibukawa, Osamu Koizumi, Kiyoshi Hirano 1999-03-23
5811904 Permanent magnet dynamo electric machine Fumio Tajima, Yutaka Matsunobu, Shouichi Kawamata, Suetaro Shibukawa, Osamu Koizumi 1998-09-22
5678760 Cooling system of electric automobile and electric motor used therefor Masanori Muso, Osamu Koizumi, Hiroshi Hamano 1997-10-21
5121605 Turbo-charger with rotary machine Shigeki Saito 1992-06-16