Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7400202 | Bias circuit for power amplifier operated by a low external reference voltage | Kazuya Yamamoto | 2008-07-15 |
| 6861906 | High-frequency semiconductor device | Kazutomi Mori, Shintaro Shinjo, Teruyuki Shimura, Kazuhiko Nakahara, Tadashi Takagi | 2005-03-01 |
| 6750718 | Radio-frequency amplifier | Takao Moriwaki | 2004-06-15 |
| 5818278 | Level shift circuit | Kazuya Yamamoto | 1998-10-06 |
| 5751181 | Power amplifier circuit | Kazuya Yamamoto | 1998-05-12 |
| 5367271 | Quadrature modulator having phase shift and amplitude compensation circuits | Kazuya Yamamoto | 1994-11-22 |
| 5173622 | Source coupled logic circuit with reduced power consumption | — | 1992-12-22 |
| 5172400 | Frequency divider employing multiple stages of master/slave flip-flops | — | 1992-12-15 |
| 5163169 | Frequency divider having the power supply connected to the GaAs substrate | Teruyuki Shimura, Hiroaki Seki | 1992-11-10 |
| 5086441 | Frequency divider circuit | Hiroichi Ishida | 1992-02-04 |