Kotani; Sumihisa
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kotani; Sumihisa.The latest application filed is for "method for producing ferrous sintered alloy having quenched structure".
- Kotani; Sumihisa - Hitachinaka JP
- Kotani; Sumihisa - Ibaraki JP
- Kotani; Sumihisa - Shimizu JP
| Patent | Date |
|---|---|
| Method for producing ferrous sintered alloy having quenched structure Grant 5,682,588 - Tsutsui , et al. October 28, 1 | 1997-10-28 |
| Scroll-type fluid machine with radial clearance between wraps Grant 4,579,512 - Shiibayashi , et al. April 1, 1 | 1986-04-01 |
| Scroll device with suction chamber pressure relief Grant 4,560,330 - Murayama , et al. December 24, 1 | 1985-12-24 |
| Scroll-type fluid machine with back pressure chamber biasing an orbiting scroll member Grant 4,557,675 - Murayama , et al. December 10, 1 | 1985-12-10 |
| Refrigeration system incorporating scroll type compressor Grant 4,475,360 - Suefuji , et al. October 9, 1 | 1984-10-09 |
| Refrigerating system using scroll type compressor Grant 4,382,370 - Suefuji , et al. May 10, 1 | 1983-05-10 |
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