Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6647169 | Optical switch | Yukihisa Takeuchi, Hiroyuki Tsuji, Nobuo Takahashi | 2003-11-11 |
| 6637102 | Process for producing an industrial member having throughholes of high aspect ratio | Yukihisa Takeuchi, Hiroyuki Tsuji, Yoshinori Yamaguchi | 2003-10-28 |
| 6606926 | Method for punching brittle material and punching die to be used therefor | Hiroyuki Tsuji, Yoshinori Yamaguchi | 2003-08-19 |
| 6507682 | Optical switch | Yukihisa Takeuchi, Hiroyuki Tsuji, Nobuo Takahashi | 2003-01-14 |
| 6502302 | Process for producing an industrial member having throughholes of high aspect ratio | Yukihisa Takeuchi, Hiroyuki Tsuji, Yoshinori Yamaguchi | 2003-01-07 |