SI

Seiji Ijuin

Nsk: 3 patents #483 of 1,559Top 35%
SO Sony: 1 patents #17,262 of 25,231Top 70%
Overall (All Time): #1,268,285 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6530693 Cylindrical roller bearing Takashi Yamamoto 2003-03-11
6185239 Semiconductor laser device Shoji Hirata, Atsushi Ogasawara 2001-02-06
5890815 Roller bearing Yoshio Shoda, Tetsu Takehara, Katsuhiro Konno 1999-04-06
5399027 Rolling bearing for a high speed rotation Yoshio Shoda 1995-03-21