Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7553445 | Manufacturing processes of sintered alloy and oil-impregnated sintered bearing | — | 2009-06-30 |
| 7234871 | Sliding bearing for use under high load | Kazuo Maruyama, Osamu Mawatari | 2007-06-26 |
| 7014367 | Oil-impregnated sintered sliding bearing | Kazuo Maruyama, Michiharu Mogami, Junichi Kobayashi, Hideki Akita, Osamu Gokita | 2006-03-21 |
| 6574186 | Assembly method of motor using magnetic lubrication fluid | Katsutoshi Nii, Toshikazu Takehana | 2003-06-03 |
| 6361737 | Method for producing a sintered porous bearing and the sintered porous bearing | Toshikazu Takehana | 2002-03-26 |
| 6119346 | Composite porous bearing and method of making same | Makoto Kondo, Shigeru Otsuka | 2000-09-19 |
| 6049983 | Method for producing a sintered porous bearing and the sintered porous bearing | Toshikazu Takehana | 2000-04-18 |
| 5932946 | Porous bearing system having internal grooves and electric motor provided with the same | Makoto Kondo, Shigeru Otsuka | 1999-08-03 |
| 5895119 | Composite porous bearing | Makoto Kondo, Shigeru Otsuka | 1999-04-20 |
| 5834870 | Oil impregnated porous bearing units and motors provided with same | Hidekazu Tokushima, Michihiro Aizawa, Hideo Shikata, Katsutoshi Nii | 1998-11-10 |
| 5821655 | Magnetic fluid bearing unit structure and motor having the same | Hidekazu Tokushima, Michihiro Aizawa, Hideo Shikata, Katsutoshi Nii | 1998-10-13 |
| 5810479 | Hydrodynamic thrust porous bearing | Makoto Kondo, Shigeru Otsuka | 1998-09-22 |
| 5746516 | Porous bearing system having internal grooves and electric motor provided with the same | Makoto Kondo, Shigeru Otsuka | 1998-05-05 |
| 5645355 | Bearing unit | Hidekazu Tokushima, Michihiro Aizawa, Hideo Shikata, Katsutoshi Nii | 1997-07-08 |
| 4935056 | Wear-resistant copper-base sintered oil-containing bearing materials | — | 1990-06-19 |