Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6082104 | Stainless double tube exhaust manifold | Tetsuya Hyakutake, Hisanaga Matsuoka, Koichi Shimizu, Kenichi Yamamoto | 2000-07-04 |
| 5754969 | Automatic transmission system with lock-up clutch | Naoki Hakamada | 1998-05-19 |
| 5681241 | Automatic transmission for automotive vehicles | Kunihiro Kubo, Naoki Hakamada | 1997-10-28 |
| 5679086 | Hydraulic control system for automatic transmission of automotive vehicles | Kunihiro Kubo | 1997-10-21 |
| 5556356 | Hydraulic control system for an automatic transmission of a vehicle | Naoki Hakamada, Mitsuo Inagaki, Kunihiro Kubo | 1996-09-17 |
| 5388614 | Rotary flow control valve | Naoki Hakamada | 1995-02-14 |