Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7199547 | Apparatus, method or system for controlling mobile body | Daigo Kaneko, Hiromi Inaba, Tsunehiro Endo, Naoto Ohnuma | 2007-04-03 |
| 7104363 | Power transmission system for elevator | Kazuhisa Mori, Kouki Yamamoto, Hideki Ayano, Hiromi Inaba, Hirokazu Nagura +1 more | 2006-09-12 |
| 6525510 | Vehicle operating system | Hideki Ayano, Hiromi Inaba, Kouki Yamamoto | 2003-02-25 |
| 6397611 | Air conditioner and brushless motor control unit | Yasuo Notohara, Akihiro Tanba, Tadashi Fukushima | 2002-06-04 |
| 5446645 | Inverter apparatus and uinterruptible power supply using the same | Hidefumi Shirahama, Yorito Jifuku, Akira Kobayashi, Keizo Shimada, Norikazu Tokunaga +3 more | 1995-08-29 |
| 5297015 | Power supply control system | Hideki Miyazaki, Kenichi Onda, Yasuo Matsuda, Yuzo Morita, Hidefumi Shirahama +2 more | 1994-03-22 |
| 5285365 | Power conversion system, method for controlling the same, and uninterruptible power supply using the same | Norikazu Tokunaga | 1994-02-08 |
| 5262935 | Parallel inverter control apparatus | Hidefumi Shirahama, Yoshimi Sakurai, Norikazu Tokunaga | 1993-11-16 |
| 5115386 | Circuit for controlling an electric power supply apparatus, a method therefor and an uninterruptible power supply | Hidefumi Shirahama, Norikazu Tokunaga, Yasuo Matsuda, Mitsufumi Iwanaka, Takeshi Nagano +1 more | 1992-05-19 |
| 4878163 | Pulse width modulated inverter with high-to-low frequency output converter | Norikazu Tokunaga, Yasuo Matsuda, Hisao Amano | 1989-10-31 |
| 4855887 | Current and frequency converter having means to reduce switching losses | Norikazu Tokunaga, Yasuo Matsuda, Hisao Amano | 1989-08-08 |
| 4777575 | Switching power supply | Norikazu Tokunaga, Hisao Amano, Shoichi Noguchi, Teruaki Odaka | 1988-10-11 |