Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7559697 | Dynamic bearing unit | Katsutoshi Nii | 2009-07-14 |
| 7166254 | Process for producing sintered aluminum alloy | Jun-ichi Ichikawa, Takashi Suzuki, Hideo Urata, Hayato Matsuda | 2007-01-23 |
| 6851859 | Bearing unit, production method therefor and spindle motor | Toshikazu Takehana, Hidekazu Tokushima, Katsutoshi Nii, Jun Hirose | 2005-02-08 |
| 6737016 | Process for manufacturing sintered slide bearing | Hidekazu Tokushima, Tadayoshi Yano | 2004-05-18 |
| 6172415 | Thin plate member for semiconductor package and manufacturing method therefor | Zenzo Ishijima, Junichi Ichikawa, Tamio Takada | 2001-01-09 |
| 6139975 | Sheet metal member, method of manufacturing same, and heat radiation plate | Osamu Mawatari, Junichi Ichikawa, Zenzo Ishijima | 2000-10-31 |
| 5967110 | Fe-based sintered alloy manufacturing process, Fe-based sintered alloy manufactured through thereof and bearing cap | Tadayuki Tsutsui, Bo Hu, Kei Ishii, Jun Sakai | 1999-10-19 |
| 5905939 | Process for producing connecting rod | Zenzo Ishijima, Junichi Ichikawa, Syuji Sasaki, Jun Sakai, Hideo Urata | 1999-05-18 |
| 5878323 | Process for producing split type mechanical part | Jun Sakai, Junichi Ichikawa, Zenzo Ishijima, Shuji Sasaki, Katsuhiko Ueda +1 more | 1999-03-02 |
| 5834870 | Oil impregnated porous bearing units and motors provided with same | Hidekazu Tokushima, Motohiro Miyasaka, Michihiro Aizawa, Katsutoshi Nii | 1998-11-10 |
| 5821655 | Magnetic fluid bearing unit structure and motor having the same | Hidekazu Tokushima, Motohiro Miyasaka, Michihiro Aizawa, Katsutoshi Nii | 1998-10-13 |
| 5819154 | Manufacturing process of sintered iron alloy improved in machinability, mixed powder for manufacturing, modification of iron alloy and iron alloy product | Bo Hu, Tadayuki Tsutsui, Kei Ishii, Jun Sakai | 1998-10-06 |
| 5722036 | Manufacturing process of connecting rod assembly and compacting die | Jun Sakai | 1998-02-24 |
| 5682588 | Method for producing ferrous sintered alloy having quenched structure | Tadayuki Tsutsui, Kei Ishii, Sumihisa Kotani | 1997-10-28 |
| 5645355 | Bearing unit | Hidekazu Tokushima, Motohiro Miyasaka, Michihiro Aizawa, Katsutoshi Nii | 1997-07-08 |
| 5545487 | Wear-resistant sintered aluminum alloy and method for producing the same | Zenzo Ishijima, Jun-ichi Ichikawa, Shuji Sasaki, Hideo Urata, Shoji Kawase +1 more | 1996-08-13 |
| 5346667 | Method of manufacturing sintered aluminum alloy parts | Yasuo Kamitsuma, Yusaku Nakagawa, Yoshihiro Kobayashi, Shoichi Nakashima, Tadashi Iizuka +1 more | 1994-09-13 |