Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5057660 | Method of making microwave heating apparatus | Tsutomu Arai | 1991-10-15 |
| 5015813 | Power feeding port arrangement for a microwave heating apparatus | Tsutomu Arai | 1991-05-14 |