P

Inventor

OKA KATSUHIKO

JP5 patents
⚠️ This page may combine multiple inventors who share the name “OKA KATSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON SOKEN

3 patents
US7759834B2Jul 20, 2010

Electromagnetic device

NIPPON SOKEN15 citations81
US7821177B2Oct 26, 2010

Laminated core

NIPPON SOKEN7 citations71
US7814642B1Oct 19, 2010

Stator of electric rotating machine

NIPPON SOKEN4 citations61

ASAHI FANCY PLYWOOD CO

1 patent
US4071642AJan 31, 1978

Method of reinforcing porous materials

ASAHI FANCY PLYWOOD CO0 citations40

OKA KATSUHIKO

1 patent
US8852259B2Oct 7, 2014

Indwelling device for tubular medical treatment instrument and front tip of indwelling device for tubular medical treatment instrument

OKA KATSUHIKO0 citations24