Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4670730 | Pressure sensor and a method of arranging a pressure sensor | Norio Ichikawa, Kazuhiro Tsuruoka | 1987-06-02 |
| 4644797 | Semiconductor pressure transducer | Norio Ichikawa, Kazuhiro Tsuruoka | 1987-02-24 |