Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4691158 | Method of operating a secondary battery to recondition the battery | Takafumi Hashimoto, Tadashi Ashikaga | 1987-09-01 |
| 4617675 | Digital PWMed pulse generator | Tadashi Ashikaga, Keiko Fushimi | 1986-10-14 |