Patents per Year
Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5453910 | Gas insulated switchgear device | Syunji Itou, Masahiro Takahoshi, Hiroshi Suzuyama, Minoru Sakaguchi | 1995-09-26 | $148,000 |
| 4638403 | Gas-insulated switchgear apparatus | Naoki Amano, Takehiro Kikuchi | 1987-01-20 | $100,000 |
| 4503481 | Gas insulated switchgear equipment | Sigeru Fujiya, Tohru Tsubaki, Naoki Amano, Kyuzi Yaginuma, Yoriyuki Aiko +1 more | 1985-03-05 | $23,000 |