Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5614815 | Constant voltage supplying circuit | Shinya Udo, Fumitaka Asami | 1997-03-25 |
SY
Seiji Yamagata
Overall (1997): #79,475 of 185,788Top 45%
1
Patents 1997