Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9353751 | Sealed scroll compressor for helium | Yasushi Izunaga, Takamasa Adachi | 2016-05-31 |
| 9239053 | Hermetically sealed scroll compressor | Kenji Tojo, Yasushi Izunaga | 2016-01-19 |
| 8628306 | Helium enclosed compressor | Takao Mizuno | 2014-01-14 |
| 8435014 | Hermetically sealed scroll compressor | Kenji Tojo, Yasushi Izunaga | 2013-05-07 |
| 6478557 | Scroll compressor suitable for a low operating pressure ratio | Yasushi Izunaga, Katsuaki Yano | 2002-11-12 |
| 5125810 | Scroll compressor with a stationary and orbiting member of different material | Kazutaka Suefuji, Tetsuya Arata, Yoshiro Ibaraki, Jyoji Okamoto | 1992-06-30 |
| 5040958 | Scroll compressor having changeable axis in eccentric drive | Tetsuya Arata, Kazutaka Suefuji | 1991-08-20 |
| 5037279 | Scroll fluid machine having wrap start portion with thick base and thin tip | Kazutaka Suefuji, Tetsuya Arata, Yoshiro Ibaraki, Jyoji Okamoto | 1991-08-06 |
| RE33473 | Oil feeding device for scroll fluid apparatus | Eiichi Hazaki, Masaya Imai, Kenji Tojo | 1990-12-04 |
| 4818195 | Scroll compressor with valved port for each compression chamber | Akira Murayama, Naoshi Uchikawa, Ryoichi Kuroshima, Hiroaki Kuno, Tetsuya Arata | 1989-04-04 |
| 4749344 | Oil feeding device for scroll fluid apparatus | Yoshikatsu Tomita, Katsuaki Kikuchi, Eiichi Hazaki, Tetsuya Arata, Kazutaka Suefuji +2 more | 1988-06-07 |
| 4696629 | Hermetic scroll compressor with welded casing section | Akira Murayama | 1987-09-29 |
| 4676075 | Scroll-type compressor for helium gas | — | 1987-06-30 |
| 4648814 | Scroll fluid machine with oil injection part and oil relieving passage | — | 1987-03-10 |
| 4596521 | Scroll fluid apparatus | Akira Murayama, Hiroaki Kuno, Naoshi Uchikawa, Takahiro Tamura, Takao Mizuno | 1986-06-24 |
| 4579512 | Scroll-type fluid machine with radial clearance between wraps | Sumihisa Kotani, Kazutaka Suefuji, Kenji Tojo, Akira Murayama | 1986-04-01 |
| 4557675 | Scroll-type fluid machine with back pressure chamber biasing an orbiting scroll member | Akira Murayama, Hiroaki Kuno, Naoshi Uchikawa, Takahiro Tamura, Takao Mizuno +4 more | 1985-12-10 |
| 4555224 | Oil feeding device for scroll fluid apparatus | Eiichi Hazaki, Masaya Imai, Kenji Tojo | 1985-11-26 |
| 4494914 | Scroll fluid apparatus with displaced centers for the scroll member end plates | — | 1985-01-22 |
| 4464100 | Scroll fluid apparatus handling compressible fluid | Shigeru Machida, Kenji Tojo, Masato Ikegawa | 1984-08-07 |
| 4462772 | Oil feeding device for scroll fluid apparatus | Eiichi Hazaki, Masaya Imai, Kenji Tojo | 1984-07-31 |
| 4443166 | Scroll fluid apparatus with an arcuate recess adjacent the stationary wrap | Masato Ikegawa, Kenji Tojo | 1984-04-17 |
| 4417863 | Scroll member assembly of scroll-type fluid machine | Masato Ikegawa, Kenji Tojo | 1983-11-29 |
| 4396364 | Scroll fluid apparatus with crankshaft bearing located in orbiting pin force plane | Kenji Tojo, Masato Ikegawa | 1983-08-02 |
| 4384831 | Scroll-type fluid apparatus provided with means for counteracting a moment exerted on orbiting scroll member | Masato Ikegawa, Masaya Imai, Kenji Tojo | 1983-05-24 |