Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8514100 | Vehicle approach warning system | — | 2013-08-20 |
| 6976530 | Exhaust heat exchanger | Takayuki Hayashi | 2005-12-20 |
| 5515810 | Method and apparatus for manufacturing semi-insulation GaAs monocrystal | — | 1996-05-14 |
| 5389551 | Method of manufacturing a semiconductor substrate | Takanobu Kamakura | 1995-02-14 |
| 5073229 | Semiconductor crystal pulling method | Masakatu Kojima | 1991-12-17 |
| 5034200 | Crystal pulling apparatus and crystal pulling method | Masakatu Kojima | 1991-07-23 |
| 5021225 | Crystal pulling apparatus and crystal pulling method using the same | Masakatu Kojima | 1991-06-04 |
| 4894206 | Crystal pulling apparatus | Masakatu Kojima, Yoshiaki Matsushita, Masanobu Ogino | 1990-01-16 |