Inventor
ROKKAKU KAZUO
JP8 patents
⚠️ This page may combine multiple inventors who share the name “ROKKAKU KAZUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOYO SEIKO CO
6 patentsUS5228786AJul 20, 1993
Full type ball bearing for turbochargers
KOYO SEIKO CO34 citations92
US4770549ASep 13, 1988
Ceramics bearing
KOYO SEIKO CO29 citations88
US4808014AFeb 28, 1989
Attaching structure for ceramics bearing
KOYO SEIKO CO11 citations73
US4960405AOct 2, 1990
Traction drive spindle device
KOYO SEIKO CO15 citations72
US5033921AJul 23, 1991
Traction drive tool adapter
KOYO SEIKO CO15 citations71
US6402658B1Jun 11, 2002
Toroidal type continuously variable transmission
KOYO SEIKO CO4 citations61