Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857686 | Microwave oven with heating chamber temperature detecting circuit | Kengo Hirata | 1989-08-15 |
KI
Katsumi Ishifuro
Overall (1989): #90,724 of 140,708Top 65%
1
Patents 1989