Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7039202 | Microphone unit | — | 2006-05-02 |
| 6870938 | Semiconductor electret capacitor microphone | Yoshiaki Ohbayashi, Mamoru Yasuda, Shinichi Saeki | 2005-03-22 |
| 6750665 | Semiconductor pressure detecting device | — | 2004-06-15 |
| 6516069 | Microphone filter and microphone unit | Toru Araki | 2003-02-04 |
| 6218883 | Semiconductor integrated circuit for electric microphone | — | 2001-04-17 |
| 6184774 | Semiconductor pressure detecting device with piezo resistance crossing grain boundaries | — | 2001-02-06 |
| 6127713 | Semiconductor pressure detecting device | Motomi Ichihashi, Keiji Sasaki | 2000-10-03 |
| 6101883 | Semiconductor pressure sensor including a resistive element which compensates for the effects of temperature on a reference voltage and a pressure sensor | — | 2000-08-15 |
| 6084460 | Four quadrant multiplying circuit driveable at low power supply voltage | — | 2000-07-04 |
| 6021670 | Semiconductor acceleration detecting device with shock absorbing structure | — | 2000-02-08 |
| 6021673 | Semiconductor pressure detecting device | Motomi Ichihashi | 2000-02-08 |
| 5793297 | Self-monitoring pressure detection apparatus and method | Tateki Mitani | 1998-08-11 |
| 5591917 | Semiconductor pressure sensor with rated pressure specified for desired error of linearity | — | 1997-01-07 |