Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5338988 | Voltage converting circuit with low consumption driver | Norihisa Yamamura | 1994-08-16 |
| 5325030 | Voice coil motor driving circuit with retracting function | Norihisa Yamamura, Shunichi Utsumi | 1994-06-28 |