Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799244 | Surface acoustical wave charge transfer device having a plurality of stationary charge carrier storage portions | Kazuo Tsubouchi, Makoto Nagao | 1989-01-17 |
| 4516049 | Multi-layer acoustic surface wave device having minimal delay time temperature coefficient | Kazuo Tsubouchi, Kazuyoshi Sugai | 1985-05-07 |
| 4511816 | Surface acoustic wave device using an elastic substrate and an aluminum nitride piezoelectric film | Kazuo Tsubouchi, Kazuyoshi Sugai | 1985-04-16 |
| 4471255 | Surface acoustic wave parametric device | Shoichi Minagawa | 1984-09-11 |
| 4448525 | Crystal defects analyzer | Kazuo Tsubouchi, Kenji Wasa | 1984-05-15 |
| 4288765 | Frequency selector apparatus | Shoichi Minagawa | 1981-09-08 |
| 4254388 | Frequency selector apparatus | Shoichi Minagawa, Takeshi Okamoto | 1981-03-03 |
| 4233530 | Elastic surface wave device | Shoichi Minagawa | 1980-11-11 |