Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6333634 | Method for measuring radio-frequency current | Kouji Sonda | 2001-12-25 |
| 4966669 | Vacuum-film-forming apparatus and method | Masaaki Sadamori, Tosinori Katamine | 1990-10-30 |