Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D301454 | Miniature electric motor | Naoyuki Hara | 1989-06-06 |
| 4814914 | Disc driving device having a reinforced base | Etsuo Tamura, Kazuhiro Yasumoto | 1989-03-21 |
IH
Ippei Hagiwara
Overall (1989): #25,210 of 140,708Top 20%
2
Patents 1989