OK

Osamu Kawamura

NC Nippon Piston Ring Co.: 13 patents #9 of 208Top 5%
Nissan Motor Co.: 4 patents #1,803 of 8,689Top 25%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
SC Shinwa Sangyo Co.: 1 patents #11 of 13Top 85%
SO Sony: 1 patents #17,262 of 25,231Top 70%
📍 Yachiyo, JP: #6 of 236 inventorsTop 3%
Overall (All Time): #225,881 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
7093825 Handrail Masao Nakazawa 2006-08-22
6728271 Stream demultiplexing device Toshiyuki Kajimura 2004-04-27
6649564 Information recording sheet and method of manufacturing information recording sheet Tetsuya Abe, Takashi Nozawa 2003-11-18
6477606 Bus system and a master device that stabilizes bus electric potential during non-access periods Tomohiko Kitamura, Tsutomu Sekibe 2002-11-05
5895517 Sintered Fe alloy for valve seat Takashi Kawamoto, Hiroshi Oshige 1999-04-20
5803037 Joined type valve seat Teruo Takahashi, Arata Kakiuchi 1998-09-08
5778530 Method of manufacturing a camshaft Yoshikatsu Nakamura, Teruo Takahashi, Shinichi Yamamoto 1998-07-14
5542990 Camshaft Yoshikatsu Nakamura, Teruo Takahashi, Shinichi Yamamoto 1996-08-06
5466276 Valve seat made of secondary hardening-type high temperature wear-resistant sintered alloy Katsuaki Sato, Katsuhiko Tominaga, Tsutomu Saka, Teruo Takahashi, Arata Kakiuchi 1995-11-14
5370725 Synchronizer ring Toshiaki Sato, Takao Omiya 1994-12-06
5337872 Synchronizer ring Shigeo Murata 1994-08-16
5273570 Secondary hardening type high temperature wear-resistant sintered alloy Katsuaki Sato, Katsuhiko Tominaga, Tsutomu Saka, Teruo Takahashi, Arata Kakiuchi 1993-12-28
5249661 Synchronizer ring Shigeo Murata 1993-10-05
5195473 Rocker arm and method of casting Makoto Kano, Ichiro Tanimoto, Teruo Takahashi 1993-03-23
5107951 Device for driving four wheels of car at all times 1992-04-28
5096515 High strength high chromium cast iron and valve rocker arm made thereof Teruo Takahashi, Makoto Kano, Ichiro Tanimoto 1992-03-17
5030185 Limited slip differential 1991-07-09
4870931 Rocker arm having wear resistant scuffing resistant portion Yoshikatsu Nakamura, Souichi Shimomura 1989-10-03
4409294 Sliding member for use in an internal combustion engine Takeshi Hiraoka, Yoshikatsu Nakamura 1983-10-11
4283217 Method of forming a shaped fluorescent light bulb envelope 1981-08-11