Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6218627 | Bushing | Toshiaki Rokunohe, Fumihiro Endo, Tokio Yamagiwa | 2001-04-17 |
| 5712756 | Substation with surge arresters | Jun Ozawa, Kazuya Ooishi, Takahide Matsuo, Yoshitaka Yagihashi, Takeo Yamazaki | 1998-01-27 |
| 5585996 | Arrestor for gas insulated switchgear | Jun Ozawa, Kazuya Ooishi, Yoshitaka Yagihashi, Shingo Shirakawa, Satoshi Watahiki | 1996-12-17 |
| 5373279 | Arrester for gas insulated switchgear device | Jun Ozawa, Kazuya Ooishi, Yoshitaka Yagihashi | 1994-12-13 |
| 5359316 | Zinc oxide type arrester | Jun Ozawa, Kazuya Ooishi | 1994-10-25 |
| 4814936 | Grounding tank type arrester | Jun Ozawa | 1989-03-21 |
| 4321651 | Enclosed-type zinc-oxide surge arrester | Jun Ozawa, Yoshi Akatsu, Akio Mizukoshi, Seizo Nakano, Seiichi Maruyama +1 more | 1982-03-23 |