Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7911274 | Variable transconductance circuit | Hiroyasu Morikawa, Marie Nishinaka | 2011-03-22 |
| 7548570 | Laser power control apparatus | Motonori Taniguchi | 2009-06-16 |
| 7486139 | Variable transconductance circuit | Hiroyasu Morikawa, Marie Nishinaka | 2009-02-03 |