Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806739 | Plate-like ceramic heater | Takao Kojima, Hiroyuki Ishiguro, Tetsusyo Yamada | 1989-02-21 |
YK
Yoshiki Kawachi
Overall (1989): #40,988 of 140,708Top 30%
1
Patents 1989