Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D360144 | Electronic metronome | — | 1995-07-11 |
| D349860 | Digital multi meter | Eiji Tsukahara | 1994-08-23 |
| D343186 | Digital metronome | — | 1994-01-11 |
| D314523 | Multimeter | — | 1991-02-12 |