Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6742977 | Substrate processing device, substrate conveying device, and substrate processing method | Satohiro Okayama, Motoichi Kanazawa, Takeshige Ishida, Tomohiko Takeda, Yukio Akita +4 more | 2004-06-01 |
| 5410464 | Voltage-type self-commutated conversion system with voltage control | — | 1995-04-25 |
| 5170334 | Bypass-pair control apparatus for thyristor bridge | Katsuro Ito | 1992-12-08 |
| 4859884 | Gate signal generator for thyristor valve | — | 1989-08-22 |
| 4680691 | Method and system for preventing an excessive voltage build-up in a power converter system | Katsuro Itoh | 1987-07-14 |