Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8721295 | Vacuum pump self-diagnosis method, vacuum pump self-diagnosis system, and vacuum pump central monitoring system | Tetsuro Sugiura, Keiji Tanaka, Toshiharu Nakazawa, Tomoyuki Yamazaki | 2014-05-13 |
| 8172544 | Operation control device for vacuum pump and method for stopping operation thereof | Tetsuro Sugiura, Hiroki Furuta | 2012-05-08 |
| 7001470 | Cleaning process for photomasks | Koji Tange, Yoshikazu Nagamura, Kunihiro Hosono, Yasutaka Kikuchi, Yuki Oomasa | 2006-02-21 |
| 5971711 | Vacuum pump control system | Nobuharu Noji | 1999-10-26 |
| 5229860 | Afterimage elimination circuit for liquid crystal | Kaoru Kobayashi | 1993-07-20 |
| 4841383 | Control pulse recording circuit for magnetic recording and reproducing apparatus | Naomichi Nishimoto, Takeshi Okauchi | 1989-06-20 |
| 4811122 | Magnetic recording/reproducing apparatus which accomodates different tape types | Kenji Shibayama, Yutaka Isobe, Masahiko Tsuruta, Hiroshi Yamada | 1989-03-07 |
| 4750037 | Noise reduction system for video signal | Yasutoshi Matsuo | 1988-06-07 |
| 4719518 | Magnetic recording apparatus for carrying out recording by selectively using one of two kinds of recording systems | Kenji Shibayama, Masahiko Tsuruta, Akira Hirota, Masato Mihara, Osamu Inoue | 1988-01-12 |