Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6903295 | Fluid pressure operating apparatus for circuit breaker | Shinji Seto | 2005-06-07 |
| 6700471 | Fixing device of current transformer | Nobuyuki Kakuda, Kouichi Koyama, Masahiro Shimokawa | 2004-03-02 |
| 6660954 | Gas-blast circuit-breaker | Kenji Iwabuchi, Naoyuki Yamamoto, Masahiro Yaegashi | 2003-12-09 |
| 6252763 | Gas-insulated electrical apparatus | Yoshikatsu Enokida, Tokio Yamagiwa, Kenji Annou, Hirohiko Yatsuzuka, Masahiro Shimokawa | 2001-06-26 |
| 5734140 | Gas insulated high voltage circuit breaker including tulip contact assembly and insertion resistor | Hiromichi Hokuto, Kunio Hirasawa, Masatomo Ohno, Hideo Kawamoto | 1998-03-31 |
| 5604340 | Gas insulated switchgear insertion resistor and main contacts operating mechanism having time delay feature | Hitoshi Yamada, Masatomo Ohno, Hideo Kawamoto | 1997-02-18 |
| 5548476 | Receiving and transforming apparatus | Toyokazu Tanaka, Satoshi Miwada, Noriyuki Tetsu, Sadao Waizumi | 1996-08-20 |
| 5450281 | Receiving and transforming apparatus | Toyokazu Tanaka, Satoshi Miwada, Noriyuki Tetsu, Sadao Waizumi | 1995-09-12 |
| 5210679 | Customer's power receiving and transforming system | Toyokazu Tanaka, Satoshi Miwada | 1993-05-11 |