Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4271382 | Speed control circuit for phase-locked loop motor drive systems | Toshinobu Maeda | 1981-06-02 |
YM
Yoshifumi Matsuoka
Overall (All Time): #4,090,774 of 4,157,543Top 100%
1
Patents All Time