Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7223932 | Vacuum Switchgear | Masato Kobayashi, Kenji Tsuchiya, Satoru Kajiwara, Daisuke Sugai | 2007-05-29 |
| 7135652 | Vacuum switchgear | Masato Kobayashi, Kenji Tsuchiya, Satoru Kajiwara, Daisuke Sugai | 2006-11-14 |