Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804823 | Ceramic heater | Norio Okuda, Noriyoshi Nakanishi, Masahiro Yamamoto, Shinsuke Takenishi, Kenichiro Miyahara +1 more | 1989-02-14 |
HS
Hiroaki Sonoda
Overall (1989): #104,095 of 140,708Top 75%
1
Patents 1989