KY

Keizo Yoshikawa

CC Central Japan Railway Comany: 2 patents #68 of 313Top 25%
IC Idemitsu Kosan Co.: 1 patents #699 of 1,237Top 60%
MD Mitsubisih Denki: 1 patents #26 of 381Top 7%
Overall (All Time): #2,107,416 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7950334 Ground coil device for magnetic levitation railway and method for manufacture thereof Tomomi Hasegawa, Futoshi Yonekawa, Akihiro Fujita, Yoshihiro Jizo, Yoshifumi Itabashi +3 more 2011-05-31
6155380 Grease filling device for electric motor Hachiro Ichikawa, Masatoshi Katagiri, Mitsunori Uchida, Koichi Horie 2000-12-05