Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6756869 | Housing for plural relay switches | Koji Takami, Yasuyuki Masui, Takashi Suzuki, Toshihiko Seki | 2004-06-29 |
| 6686023 | Polished-piece holder and manufacturing method thereof | Katsuji Takahashi, Hirokazu Hiraoka | 2004-02-03 |