Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6285629 | Method for preventing deterioration of submarine structure and ultrasonic vibration unit used for the method | Masaki Kobayashi | 2001-09-04 |
| 5875789 | Ultra-sonic perming device and method | — | 1999-03-02 |
| 4375900 | Control system of and device for memorizing, reading and reproducing the position of material to be controlled | Akifumi Tachibana, Minoru Watanabe | 1983-03-08 |
| 4327427 | System of automatically controlling distance in linear movement | Mitsuhiko Hotta, Akifumi Tachibana | 1982-04-27 |
| 4326274 | Transmission system of aerial ultrasonic pulse and ultrasonic transmitter and receiver used in the system | Mitsuhiko Hotta, Shuhei Furuichi | 1982-04-20 |