Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6228181 | Making epitaxial semiconductor device | Shigeo Yamamoto | 2001-05-08 |
| 6001175 | Crystal producing method and apparatus therefor | Yasuhiro Maruyama | 1999-12-14 |
| 5367981 | Apparatus for manufacturing crystals through floating zone method | — | 1994-11-29 |
| 5257613 | Engine control system | Takashi Monda, Tomiharu Yokoyama | 1993-11-02 |