Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9657384 | DLC film coating and coated valve lifter | Yukio Kubota | 2017-05-23 |
| 8628397 | Multiplayer competition game device, game machine and game program | Kazuhiro Kusuda, Hirokatsu Yamaguchi, Yukihiro Osaki | 2014-01-14 |
| 8512128 | Game machine and computer program thereof | Yosuke Sasaki, Makato Ando, Yaku Hiranbe, Tomoaki Hirai, Emiko Miyaji | 2013-08-20 |
| 8382585 | Game machine and computer program thereof | Yosuke Sasaki, Makoto Ando, Yaku Hiranabe, Tomoaki Hirai, Emiko Miyaji | 2013-02-26 |
| 7827946 | Engine valve lifter mechanism of internal combustion engine | Akira Hidaka, Keisuke Takeda | 2010-11-09 |
| 7108134 | Sample packing cover body for single article storage display for sales promotion purpose | Nobuya Koujitani | 2006-09-19 |
| 6404162 | Variable-speed controlling device for use with an induction motor | Hirokazu Tajima, Hidetoshi Umida | 2002-06-11 |
| 6321606 | Apparatus for calculating torque generated by induction motor | Hirokazu Tajima | 2001-11-27 |
| 6259611 | PWM power converter | Junichi Ito, Hidetoshi Umida | 2001-07-10 |
| 6075337 | Speed control apparatus for induction motor | Hirokazu Tajima | 2000-06-13 |
| 6055171 | AC/DC converting circuit | Hiroshi Miki | 2000-04-25 |
| 5977814 | Driving circuit for IGBT | — | 1999-11-02 |
| 5978243 | Ac/dc converting circuit | Hiroshi Miki | 1999-11-02 |
| 5959855 | Voltage control with feedback utilizing analog and digital control signals | Takashi Aihara, Hiroshi Takahashi | 1999-09-28 |
| 5751567 | AC-DC converter | Jiro Toyozaki, Takao Yanase, Takashi Aihara | 1998-05-12 |
| 5481172 | Circuit for controlling power converting apparatus | Hirofumi Minowa, Takao Yanase, Masaru Yamazoe | 1996-01-02 |
| 5475292 | Apparatus for restarting inverter for driving synchronous motor after momentary interruption | Takashi Nakanishi | 1995-12-12 |
| 5435454 | Oil reservoir cap with concentric baffles | — | 1995-07-25 |
| 4911835 | Seawater-dissolved metal collecting system | Takeaki Miyazaki, Hitoshi Hotta, Yukihisa Washio | 1990-03-27 |