Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5581759 | Apparatus and method for controlling a system process | Akihiro Ohhashi, Tadashi Okamoto, Makoto Tachikawa, Takeshi Katoh, Junichi Hamano +1 more | 1996-12-03 |
| 5545957 | Motor speed controller for suppressing shaft torsion vibration | Kenji Kubo, Rached Dhaouadi, Masahiro Tobise | 1996-08-13 |
| 5504930 | Programmable controller and sequence control method | Mitsuaki Kobayashi, Toshihiko Matsuda, Yasuo Morooka, Kunihiko Onuma, Hiromitsu Kikuchi | 1996-04-02 |
| 5355482 | Apparatus and method for controlling a system process | Akihiro Ohhashi, Tadashi Okamoto, Makoto Tachikawa, Takeshi Katoh, Junichi Hamano +1 more | 1994-10-11 |
| 5268776 | System for partially erasing thermally written liquid crystal element | Makoto Tachikawa, Tadahiko Hashimoto, Kuniyuki Igari, Toru Ishikawa | 1993-12-07 |
| 4998194 | Multiplex control system with programmable logic for controlling signal transfer between controllers and one or more controlled systems | Tadashi Okamoto | 1991-03-05 |
| 4952034 | Liquid crystal projection display | Tadahiko Hashimoto, Hisayoshi Shiraishi, Yoshiharu Nagae | 1990-08-28 |
| 4810064 | Liquid crystal projection display having laser intensity varied according to beam change-of-axis speed | Tadahiko Hashimoto, Hisayoshi Shiraishi, Yoshiharu Nagae | 1989-03-07 |
| 4628475 | Pulse width modulation pulse generator | Hisayoshi Shiraishi | 1986-12-09 |
| 4571668 | Apparatus and method for controlling a thyristor converter in response to change in mode of load current | Hisayoshi Shiraishi | 1986-02-18 |
| 4271385 | Control system for commutatorless motor | — | 1981-06-02 |
| 4262241 | Control system for commutatorless motor driven through frequency converter | — | 1981-04-14 |