Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6525917 | Power transforming system and method | Hiroshi Arita, Takahide Matsuo, Satoshi Watahiki, Naoki Kasahara, Shinichi Kondo +1 more | 2003-02-25 |
| 6466425 | Insulating arrester capable of providing a voltage distribution that is substantially symmetrical around the center of the overall height of the arrester | Satoshi Watahiki | 2002-10-15 |
| 6407900 | Lightning protection system for wind power generation installation | Seizo Nakano, Kazuo Suzuki | 2002-06-18 |
| 5959823 | Tank-type surge arrester | Satoshi Watahiki | 1999-09-28 |
| 5912792 | Mounting construction of a tank-type lightning arrester for a neutral point of a transformer | Makoto Matsuzaki, Eichi Okamoto | 1999-06-15 |
| 5764129 | Ceramic resistor, production method thereof, neutral grounding resistor and circuit breaker | Moritaka Syouji, Tadashi Kitami, Seiichi Yamada, Ken Takahashi, Takeo Yamazaki +2 more | 1998-06-09 |
| 5680316 | Method for estimating discharge capability of zinc oxide power element, method for screening the element and systems for carrying out these methods | Shirou Murosawa | 1997-10-21 |
| 5614138 | Method of fabricating non-linear resistor | Seiichi Yamada, Shigeru Tanaka, Moritaka Shoji, Shigehisa Motowaki, Ken Takahashi +2 more | 1997-03-25 |
| 5610570 | Voltage non-linear resistor and fabricating method thereof | Seiich Yamada, Shigeru Tanaka, Moritaka Syouji, Shigehisa Motowaki, Ken Takahashi +1 more | 1997-03-11 |
| 5590018 | Arrangement of arrestors in a gas-insulated switchgear | Satoshi Watahiki | 1996-12-31 |
| 5585996 | Arrestor for gas insulated switchgear | Jun Ozawa, Kazuya Ooishi, Katsuji Shindo, Yoshitaka Yagihashi, Satoshi Watahiki | 1996-12-17 |
| 5574613 | Lightning arrester having machinery built-in | Morio Ito, Shingo Uchida, Kazutoshi Mochizuki | 1996-11-12 |
| 5561581 | Arrester and manufacturing method thereof | Satoshi Watahiki | 1996-10-01 |
| 5548468 | Surge arrester using zinc oxide elements installed in parallel, and method of forming the surge arrester | Satoshi Watahiki | 1996-08-20 |
| 5515231 | Thyristor valve arrester and DC power transmission thyristor valve using the same | Shuichi Terakado | 1996-05-07 |
| 5283709 | Lightning arrester on tower for power transmission | Syuichi Terakado, Jun Ozawa, Kazuya Ooishi | 1994-02-01 |
| 4943795 | Oxide resistor | Takeo Yamazaki, Satoru Ogihara, Tetsuo Kosugi, Shinichi Owada | 1990-07-24 |
| 4774622 | Connecting apparatus for lightning arresters for overhead transmission lines | Shigeo Kikuchi | 1988-09-27 |
| 4736183 | Oxide resistor | Takeo Yamazaki, Satoru Ogihara, Tetsuo Kosugi, Shinichi Owada | 1988-04-05 |
| 4675773 | Transmission line protection system | Seiichi Maruyama, Seizo Nakano, Eichi Okamoto, Kenji Kohara | 1987-06-23 |
| 4502089 | Lightning arrester | Jun Ozawa, Katuji Shindo | 1985-02-26 |
| 4321651 | Enclosed-type zinc-oxide surge arrester | Jun Ozawa, Yoshi Akatsu, Katsuji Shindo, Akio Mizukoshi, Seizo Nakano +1 more | 1982-03-23 |
| 4262318 | Zinc-oxide surge arrester | Yutaka Kitano, Yoshio Kawai, Siniti Owada | 1981-04-14 |