SM

Shigeru Muramatsu

Sumitomo Electric Industries: 6 patents #8 of 2,038Top 1%
Yamaha: 1 patents #57 of 184Top 35%
Overall (1997): #1,461 of 185,788Top 1%
7
Patents 1997

Issued Patents 1997

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5695326 Compressor for a refrigeration machine having a thrust bearing Hideto Oka, Hirotsugu Fukuoka, Hiroshi Matsunaga, Masahiro Tsubokawa 1997-12-09
5690475 Scroll compressor with overload protection Sadayuki Yamada, Nobuyuki Shiratake, Hiroyuki Fukuhara 1997-11-25
5685703 Hermetically sealed rotary compressor having an oil supply passage to the compression compartment Hirotsugu Fukuoka, Keisuke Morita, Hiroshi Matsunaga 1997-11-11
5652399 Automatic player piano and estimator for acceleration of depressed key incorporated in the automatic player piano Yuji Fujiwara, Taro Kawabata, Yasuhiko Oba, Yoshimasa Isozaki, Jun Ishii 1997-07-29
5630712 Electrically-driven closed scroll compressor having means for minimizing an overturning moment to an orbiting scroll Manabu Sakai 1997-05-20
5622487 Scroll compressor having a separate stationary wrap element secured to a frame Hiroyuki Fukuhara, Sadayuki Yamada 1997-04-22
5607291 Closed compressor Keisuke Morita, Hiroshi Matsunaga, Shinji Fujiwara 1997-03-04