Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7517838 | Lubricating oil for bearing | Yasuyuki Kawahara, Kouji Takahashi | 2009-04-14 |
| 6855675 | Lubricating oil composition | Michiya Yamada, Satoshi Asano | 2005-02-15 |
| 6667285 | Lubricating oil for refrigerator, hydraulic fluid composition for refrigerator and method for lubricating of refrigerator | Yasuyuki Kawahara, Kouji Takahashi | 2003-12-23 |
| 6403541 | Oil filter clogging preventing agent and oil filter clogging preventing method, and engine oil compositions comprising said oil filter clogging preventing agent | Yoshikuni Kambara | 2002-06-11 |
| 5880073 | Lubricating oil composition | Arai Katsuya | 1999-03-09 |
| 5719109 | Lubricating oil composition | Michide Tokashiki, Michiya Yamada | 1998-02-17 |
| 5696063 | Basic metal salt of dithiocarbamic acid and lubricating oil composition containing said salt | Michihide Tokashiki, Katsuya Arai | 1997-12-09 |
| 5688748 | Lubricating oil composition for internal combustion engines | — | 1997-11-18 |
| 5605880 | Lubricating oil composition | Katsuya Arai | 1997-02-25 |
| 5603861 | Electroviscous fluid mixed with esterified silica fine particles and polyhydric alcohol | Nobuharu Umamori, Tetsuo Miyamoto, Makoto Kanbara | 1997-02-18 |
| 5387370 | Electroviscous fluid | Makoto Kanbara, Tetsuo Miyamoto | 1995-02-07 |
| 5364545 | Lubricating oil composition containing friction modifier and corrosion inhibitor | Katsuya Arai, Toshikazu Tsukada | 1994-11-15 |
| 5356547 | Lubricating oil composition containing friction modifier and corrosion inhibitor | Katsuya Arai, Toshikazu Tsukada | 1994-10-18 |
| 5344582 | Traction fluid derived from cyclopentadiene oligomers | Noboru Umemoto, Takeshi Nomura, Toshiaki Kuribayashi, Takehisa Sato | 1994-09-06 |
| 5334320 | Compositions for hydraulic, lubricating and coupling | Noboru Umemoto, Hitoshi Ohenoki | 1994-08-02 |
| 5334319 | Composition for hydraulic lubrication and coupling | Noboru Umemoto, Hitoshi Ohenoki | 1994-08-02 |
| 5332515 | Fluid for viscous coupling | Noboru Umemoto, Hitoshi Ohenoki | 1994-07-26 |
| 5288535 | Electrode for electroviscous fluid | Makoto Kanbara, Masahiko Hayafune, Katsuya Arai | 1994-02-22 |
| 5266229 | Stable electro-rheological fluid having a high viscosity-increasing effect | Makoto Kanbara, Narihiko Yoshimura, Junichi Mitsui, Hiroshi Hirano | 1993-11-30 |
| 5266230 | Electroviscous fluid containing antioxidant and/or corrosion inhibitor | Makoto Kanbara, Masahiko Hayafune | 1993-11-30 |
| 5259978 | Traction fluid composition comprising a cyclohexyl diester and branched poly-.alpha.-olefin | Narihiko Yoshimura, Yasuji Komatsu | 1993-11-09 |
| 5185092 | Lubricating oil for refrigerator | Masaaki Fukuda, Mitsuo Ohta, Hideki Osaka, Satoshi Ogano, Takehisa Satoh +2 more | 1993-02-09 |
| 5171481 | Synthetic traction fluid | Narihiko Yoshimura, Yasuji Komatsu | 1992-12-15 |
| 5075024 | Synthetic traction fluid | Narihiko Yoshimura, Yasuji Komatsu | 1991-12-24 |
| 5039440 | Traction fluid | Narihiko Yoshimura | 1991-08-13 |