Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6866747 | Plasma processing apparatus | Tatsushi Yamamoto, Masaki Hirayama, Tadahiro Ohmi | 2005-03-15 |
| 6776879 | Backing plate used for sputtering apparatus and sputtering method | Tatsushi Yamamoto | 2004-08-17 |
| 6753496 | Plasma processing apparatus | Tatsushi Yamamoto, Masaki Hirayama, Tadahiro Ohmi | 2004-06-22 |
| 6726802 | Plasma processing apparatus | Tatsushi Yamamoto, Masaki Hirayama, Tadahiro Ohmi | 2004-04-27 |
| 6638392 | Plasma process apparatus | Naoko Yamamoto, Tatsushi Yamamoto, Masaki Hirayama, Tadahiro Ohmi | 2003-10-28 |
| 6527908 | Plasma process apparatus | Norio Kanetsuki, Tatsushi Yamamoto, Masaki Hirayama, Tadahiro Ohmi | 2003-03-04 |
| 6446573 | Plasma process device | Masaki Hirayama, Tadahiro Ohmi, Tatsushi Yamamoto | 2002-09-10 |
| 6286454 | Plasma process device | Masaki Hirayama, Tadahiro Ohmi, Tatsushi Yamamoto | 2001-09-11 |
| 6155511 | Capstan motor with hysteresis plate and drive system | Koji Yamabuchi, Mitsunobu Yoshida | 2000-12-05 |
| 5663845 | Magnetic recording/reproducing apparatus | Tatsushi Yamamoto, Shigeaki Kakiwaki, Tohru Okuda, Hideo Okada, Masaji Tsuji +1 more | 1997-09-02 |
| 5521780 | Tape cassette and magnetic recording/reproducing apparatus used therefor | Shigemi Asai, Tohru Okuda, Hideo Okada, Hiroaki Takeuchi | 1996-05-28 |
| 5491594 | Magnetic recording/reproducing apparatus | Tatsushi Yamamoto, Sigeaki Kakiwaki, Tohru Okuda, Hideo Okada, Masaji Tsuji +1 more | 1996-02-13 |