Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876893 | Strain gauges for the pressure sensor | Masami Ishii, Ryohei Yabuno, Tetsuo Oka | 1989-10-31 |
| 4843454 | Semiconductor pressure transducer | Hiroshi Okada, Yoshifumi Watanabe, Osamu Ina, Osamu Ito, Iwao Yokomori | 1989-06-27 |
| 4838089 | Semiconductor pressure sensor | Hiroshi Okada, Osamu Ina, Kazuhisa Ikeda | 1989-06-13 |