Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7360388 | Hollow stepped shaft and method of forming the same | Takeshi Kazama, Masahiro Dohi | 2008-04-22 |
| 7171837 | Hollow stepped shaft and method of forming the same | Takeshi Kazama, Masahiro Dohi | 2007-02-06 |
| 7172059 | Electromagnetic coupling | Masahiro Dohi | 2007-02-06 |
| 7134312 | Die apparatus and die exchanging method in pressing machine | Takeshi Kazama | 2006-11-14 |
| 7100417 | Lower die assembly in pressing machine | Takeshi Kazama | 2006-09-05 |
| 7015434 | Method of joining together magnetic and nonmagnetic materials | Masahiro Dohi | 2006-03-21 |
| 6959479 | Method of manufacturing a hollow shaft having a flange at one end thereof | Masami Oguri | 2005-11-01 |
| 6941783 | Double action oil hydraulic press | Takeshi Kazama | 2005-09-13 |
| 6662446 | Method for manufacturing a torque converter | Toshio Kobayashi | 2003-12-16 |
| 6651330 | Torque converter | Toshio Kobayashi | 2003-11-25 |
| 6615476 | Method of manufacturing a hollow shaft having a flange at one end thereof | Masami Oguri | 2003-09-09 |
| 6594895 | Torque converter | Toshio Kobayashi | 2003-07-22 |
| 6474062 | Torque converter | Toshio Kobayashi | 2002-11-05 |
| 6126388 | Water pump and manufacturing method thereof | Satsuo Morita | 2000-10-03 |
| 5722138 | Apparatus for manufacturing toothed gears | — | 1998-03-03 |
| 5699689 | Method of and apparatus for forming a disc-shaped blank | — | 1997-12-23 |
| 5562785 | Method for manufacturing toothed gears | — | 1996-10-08 |
| 5310432 | Toothed wheel for use in automobiles and its manufacturing method | Kiyoshi Fukui | 1994-05-10 |
| 5237745 | Method of and apparatus for manufacturing drive plate | — | 1993-08-24 |