Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9581162 | Compressor | Hironao Yokoi, Masato Sowa, Katsutoshi Shiromaru, Fumihiro Suzuki | 2017-02-28 |
| 8784087 | Roots type fluid machine | Takayuki Hirano, Masato Sowa, Toshiro Fujii, Tsutomu Nasuda, Katsutoshi Shiromaru +1 more | 2014-07-22 |
| 8118543 | Centrifugal compressor having switchable two passages | Ryo Umeyama, Toshiro Fujii, Manabu Ishikawa | 2012-02-21 |
| 8092197 | Hydraulic system | Toshiro Fujii, Yoshiyuki Nakane | 2012-01-10 |
| 7544047 | Compressor with two cooling chambers | Yoshiyuki Nakane, Hidefumi Mori, Tatsuyuki Hoshino, Tsutomu Nasuda | 2009-06-09 |
| 7320579 | Roots type fluid machine | Takayuki Hirano, Toshiro Fujii | 2008-01-22 |
| 7287970 | Roots compressor | Takayuki Hirano, Toshiro Fujii | 2007-10-30 |
| 7261513 | Centrifugal compressor | Ryo Umeyama, Hisao Hamasaki | 2007-08-28 |
| 6987373 | System and method for starting pump | Masanao Kagami, Toshiro Fujii, Tatsuyuki Hoshino, Takayuki Hirano | 2006-01-17 |