Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5386114 | Detector for activity direction of magma | — | 1995-01-31 |
| 5241175 | Method and equipment for prediction of volcanic eruption and earthquake | — | 1993-08-31 |
| 4994733 | Potentiometer for voltage-measuring instrument | — | 1991-02-19 |
| 4980570 | Device for determining location of apertures | Kensuke Hasegawa | 1990-12-25 |
| 4963885 | Thermal head printer | Isamu Watanabe | 1990-10-16 |
| 4636772 | Multiple function type D/A converter | — | 1987-01-13 |
| 4461960 | High speed switching circuit | — | 1984-07-24 |