Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6538877 | Gas insulation switch | Hiroki Honma, Koji Sasaki | 2003-03-25 |
| 6525917 | Power transforming system and method | Hiroshi Arita, Takahide Matsuo, Satoshi Watahiki, Shingo Shirakawa, Naoki Kasahara +1 more | 2003-02-25 |