Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5124687 | Power apparatus, power transmission/distribution unit, and tripping method therefor | Kiyoshi Okumura, Yoshinori Tagawa, Takaaki Kawada, Masaru Fukuoka | 1992-06-23 |
| 5107447 | Abnormality diagnosing system and method for a high voltage power apparatus | Jun Ozawa, Fumihiro Endo, Youichi Ohshita, Izumi Yamada, Hiroshi Yamada +2 more | 1992-04-21 |
| 4975800 | Contact abnormality detecting system | Youichi Oshita, Akira Hashimoto, Yukio Kurosawa, Yoshiaki Inui | 1990-12-04 |
| 4829256 | Insulation testing device for gas insulated apparatus | Toshio Ishikawa | 1989-05-09 |
| 4818825 | Insulating spacers for use in gas-insulated electric apparatus | Toshio Ishikawa | 1989-04-04 |
| 4672150 | Conductor supporting apparatus for gas insulated equipment | Toshio Ishikawa, Fumihiro Endo | 1987-06-09 |
| 4667061 | Gas insulated apparatus with internal coated insulation layer of high dielectric constant | Toshio Ishikawa, Fumihiro Endo, Yuzuru Kamata | 1987-05-19 |
| 4564721 | Gas-insulated electrical apparatus with electret for captivating conductive particles and method of removing such particles during assembly thereof | Toshio Ishikawa, Fumihiro Endo, Yuzuru Kamata | 1986-01-14 |
| 4549132 | Method of testing and verifying a performance for insulation to ground of a disconnecting switch when breaking a charging current | Toshio Ishikawa, Jun Ozawa, Kaoru Endo, Masao Hosokawa | 1985-10-22 |
| 4306274 | Disc ceramic capacitor | Yuzuru Kamata, Yasuro Hori, Rikizo Ishikawa, Jun Ozawa | 1981-12-15 |