Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880952 | Heat cooking oven having flat heater units on the outside of the walls thereof | Kazumi Hirai, Mitsuo Akiyoshi, Ichiroh Hori | 1989-11-14 |
| 4870896 | Installation method of a kneading trough in an oven and its apparatus | Takashi Asahina, Mitsuo Akiyoshi, Satoru Kodama, Masaharu Tsujimoto | 1989-10-03 |