Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5856917 | Electric power device with improved power factor | Kenichi Aonuma, Shigetaka Maeyama, Hiroko Hirayama, heiress, Hiroshi Hirayama, Hisahiko Abe | 1999-01-05 |
| 5323071 | Semiconductor integrated circuit device having logic level conversion circuit | — | 1994-06-21 |
| 5107144 | Integrated circuit having field effect transistors | — | 1992-04-21 |
| 5015873 | Semiconductor driver for producing switching and offset signals | — | 1991-05-14 |
| 4939402 | Driving circuit for driving a piezoelectric vibrator | Takashi Urano, Minoru Takahashi | 1990-07-03 |
| 4857975 | GaAs field effect transistor having a WSi Schottky gate electrode improved for high-speed operation | — | 1989-08-15 |
| 4850534 | Ultrasonic wave nebulizer | Minoru Takahashi, Kiyoto Sudou | 1989-07-25 |
| 4743957 | Logic integrated circuit device formed on compound semiconductor substrate | — | 1988-05-10 |
| 4547705 | Discharge lamp lightening device | Hisashi Ebina | 1985-10-15 |
| 4327348 | Variable leakage transformer | — | 1982-04-27 |