Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8138133 | Gear oil composition | Yasuyoshi Suzuki, Kenji Ueno, Kouji Saitoh, Tatsuji Suganuma, Kiyonari Ishikawa | 2012-03-20 |
| 6878678 | Oil composition for automatic transmission | Asep Saputra, Tomohiro Kato | 2005-04-12 |
| 5922656 | Lubricant compositions for automatic transmissions | Takanori Kugimiya, Takanori Nakada, Fumio Ueda, Yasushi Ando | 1999-07-13 |
| 5266229 | Stable electro-rheological fluid having a high viscosity-increasing effect | Hirotaka Tomizawa, Makoto Kanbara, Junichi Mitsui, Hiroshi Hirano | 1993-11-30 |
| 5259978 | Traction fluid composition comprising a cyclohexyl diester and branched poly-.alpha.-olefin | Yasuji Komatsu, Hirotaka Tomizawa | 1993-11-09 |
| 5171481 | Synthetic traction fluid | Hirotaka Tomizawa, Yasuji Komatsu | 1992-12-15 |
| 5075024 | Synthetic traction fluid | Hirotaka Tomizawa, Yasuji Komatsu | 1991-12-24 |
| 5039440 | Traction fluid | Hirotaka Tomizawa | 1991-08-13 |
| 4978468 | Traction fluid | Hirotaka Tomizawa, Yasuji Komatsu | 1990-12-18 |
| 4889650 | Synthetic traction fluid | Hirotaka Tomizawa, Yasuji Komatsu | 1989-12-26 |
| 4886613 | Traction fluid | Yasuji Komatsu, Hirotaka Tomizawa | 1989-12-12 |
| 4886614 | Synthetic traction fluid | Hirotaka Tomizawa, Yasuji Komatsu | 1989-12-12 |
| 4871476 | Synthetic lubricating fluid | Michihide Tokashiki, Tetsuo Ishii | 1989-10-03 |