Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7042293 | DC/DC converter using bipolar transistor, method of manufacturing the same and DC power supply module using the same | Koji Nakano, Jun Utsumi | 2006-05-09 |
| 6750629 | Inverter control apparatus and motor driving system | Tetsuro Shigemizu, Mitsuyuki Nonaka, Yoshio Kayuki, Noriyuki Akasaka, Hisanobu Shinoda | 2004-06-15 |
| 5781429 | Pulse charging apparatus using electron tube for switching control | Kazutaka Tomimatsu, Yasutoshi Ueda, Shunsuke Kamei | 1998-07-14 |
| 5575836 | Electric dust collector | Sakao Sugiura, Nobuo Teramura | 1996-11-19 |
| 4710705 | Noise removal circuit for use in a partial discharge measuring device of a high voltage apparatus | — | 1987-12-01 |
| 4615215 | Method and apparatus for testing ready-mixed concrete | Yasuhiko Sugimoto, Sadao Wada, Naoyosi Tanide, Tadashi Yamaguchi, Shozo Yano +3 more | 1986-10-07 |