Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11434912 | Compressor housing for turbocharger and method for manufacturing the same | Tomoyuki Isogai, Ryu Osuka | 2022-09-06 |
| 11421705 | Compressor housing for turbocharger and method for manufacturing the same | Tomoyuki Isogai | 2022-08-23 |
| 11035377 | Compressor housing for turbocharger and method for manufacturing the same | Tomoyuki Isogai | 2021-06-15 |
| 10982687 | Housing for turbocharger and method for manufacturing the same | Tomoyuki Isogai | 2021-04-20 |
| 10458315 | Compressor structure for turbochargers | Tomoyuki Isogai | 2019-10-29 |
| 9618001 | Turbocharger | Tomoyuki Isogai | 2017-04-11 |
| 7621242 | Variable valve operating mechanism | Katsutoshi Kitagawa, Akira Sugiura, Tomiyasu Hirano, Tamotsu Yamamoto | 2009-11-24 |
| 7606351 | Telephone number change notification method and telephone number change notification system | — | 2009-10-20 |
| 7451729 | Variable valve mechanism | Akira Sugiura, Tamotsu Yamamoto, Katsutoshi Kitagawa, Tomiyasu Hirano, Tomoki Miyoshi | 2008-11-18 |