Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857686 | Microwave oven with heating chamber temperature detecting circuit | Katsumi Ishifuro | 1989-08-15 |
| 4831225 | Microwave oven/convection oven having means for controlling ventilation of the cooking chamber | Kathumi Ishifuro | 1989-05-16 |