Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853695 | Data input device having switch matrix scanning means | Hideo Ueno, Satoshi Shibata | 1989-08-01 |
KY
Keiko Yamada
Overall (1989): #87,437 of 140,708Top 65%
1
Patents 1989