Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6411077 | Optical-voltage sensor | Masaru Higaki | 2002-06-25 |
| 4562322 | SF.sub.6 Gas arc extinguishing electric apparatus and process for producing the same | Motoo Yamaguchi, Kunio Hirasawa, Yoshio Yoshioka, Akio Nishikawa, Hiroshi Suzuki +2 more | 1985-12-31 |