Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7819645 | Internal gear pump | — | 2010-10-26 |
| 7632083 | Anti-galling pump rotor for an internal gear pump | — | 2009-12-15 |
| 7588429 | Oil pump rotor assembly | — | 2009-09-15 |
| 7572117 | Inner rotor of internal gear pump having convex small circular arc parts | — | 2009-08-11 |
| 7476093 | Oil pump rotor assembly | — | 2009-01-13 |
| 7118359 | Oil pump rotor | — | 2006-10-10 |
| 6929458 | Oil pump rotor | Katsumi Hirabayashi, Ichiro Kimura, Hirotaka Kurita, Takashi Kobayashi | 2005-08-16 |
| 6887056 | Oil pump rotor | — | 2005-05-03 |
| 6077059 | Oil pump rotor | — | 2000-06-20 |
| 5876193 | Oil pump rotor having a generated cycloid curve | Manabu Katagiri | 1999-03-02 |
| 5813844 | Oil pump rotor having a generated tooth shape | Manabu Katagiri | 1998-09-29 |
| 4929220 | Pulleys | Kenji Kushita | 1990-05-29 |