Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4717321 | Vane compressor with vane back pressure adjustment | Yutaka Ishizuka, Haruhiko Takada, Teruo Nakamura, Hidehiko Takayama | 1988-01-05 |
| 4668172 | Compressor having discharge valve means adapted to enhance the coefficient of performance of the compressor | Yutaka Ishizuka | 1987-05-26 |
| 4652217 | Double acting type compressor | — | 1987-03-24 |
| 4611977 | Vane compressor with vane back pressure adjustment | Yutaka Ishizuka, Haruhiko Takada, Teruo Nakamura, Hidehiko Takayama | 1986-09-16 |
| 4571164 | Vane compressor with vane back pressure adjustment | Yutaka Ishizuka, Haruhiko Takada, Teruo Nakamura, Hidehiko Takayama | 1986-02-18 |
| 4549855 | Compression capacity control apparatus for swash plate compressor | Yutaka Ishizuka | 1985-10-29 |
| 4544332 | Double acting type compressor | — | 1985-10-01 |
| 4544331 | Swash-plate type compressor | — | 1985-10-01 |
| 4543049 | Vane compressor with means for obtaining sufficient back pressure upon vanes at the start of compressor | — | 1985-09-24 |
| 4538976 | Vane compressor having suction port and discharge port located at the same axial side thereof | — | 1985-09-03 |
| 4522573 | Variable delivery vane compressor | — | 1985-06-11 |
| 4516920 | Variable capacity vane compressor capable of controlling back pressure acting upon vanes | — | 1985-05-14 |
| 4511313 | Compression capacity control apparatus for swash plate compressor | Yutaka Ishizuka | 1985-04-16 |
| 4507065 | Vane compressor having drive shaft journalled by roller bearings | Teruo Nakamura | 1985-03-26 |
| 4502854 | Vane compressor having rearwardly located suction connector and discharge connector | Yutaka Ishizuka, Teruo Nakamura | 1985-03-05 |
| 4484868 | Vane compressor having improved cooling and lubrication of drive shaft-seal means and bearings | Masahiro Iio | 1984-11-27 |
| 4468180 | Vane compressor having intermittent oil pressure to the vane back pressure chamber | — | 1984-08-28 |
| 4466522 | Electromagnetic spring-wound clutch | — | 1984-08-21 |
| 4464101 | Seizure-free, highly fluid tight and lightweight vane compressor | — | 1984-08-07 |
| 4415315 | Swash-plate type compressor having an improved lubricant oil feeding arrangement | — | 1983-11-15 |
| 4412787 | Swash-plate type compressor having an improved lubricant oil feeding arrangement | Hiroshi Kondo | 1983-11-01 |
| 4299543 | Swash plate compressor | — | 1981-11-10 |
| 4289453 | Swash-plate type compressor | — | 1981-09-15 |
| 4274816 | Rotary vane compressor with chamfered vane slots | Shigeru Kobayashi, Takemi Kanda | 1981-06-23 |
| 4273518 | Swash-plate type compressor | — | 1981-06-16 |