Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7362194 | Oscillator circuit and L load differential circuit achieving a wide oscillation frequency range and low phase noise characteristics | Tomohiro Sano, Hisayasu Sato, Toshio Kumamoto, Yasushi Hashizume | 2008-04-22 |
| 7202754 | Oscillator circuit and L load differential circuit achieving a wide oscillation frequency range and low phase noise characteristics | Tomohiro Sano, Hisayasu Sato, Toshio Kumamoto, Yasushi Hashizume | 2007-04-10 |
| 6850120 | Semiconductor device including semiconductor element of high breakdown voltage | Tetsuya Heima | 2005-02-01 |
| 6826393 | Mixer circuit having component for frequency conversion | Hisayasu Sato, Takahiro Miki | 2004-11-30 |
| 6798678 | Frequency voltage converter | Hisayasu Sato, Takahiro Miki | 2004-09-28 |
| 6791413 | Variable gain amplifier with a gain exhibiting a linear in dB characteristic relative to a control voltage | Hisayasu Satoh, Kinya Hosoda, Akira Hyogo, Keitaro Sekine | 2004-09-14 |
| 6642540 | Semiconductor integrated circuit device | Kazuya Yamamoto, Hisayasu Satoh, Hideyuki Wakada | 2003-11-04 |
| 6639446 | High linearity, high gain mixer circuit | Hisayasu Sato, Kimio Ueda | 2003-10-28 |
| 6522711 | Variable frequency divider circuit | Hideyuki Wakada, Naoyuki Kato, Hisayasu Satoh | 2003-02-18 |
| 6500722 | Inductor recognition method, layout inspection method, computer readable recording medium in which a layout inspection program is recorded and process for a semiconductor device | Yoshiki Wada, Shigenobu Maeda, Shuji Yoshida | 2002-12-31 |
| 6472925 | Mixer circuit with negative feedback filtering | Hisayasu Satoh | 2002-10-29 |
| 6355957 | Semiconductor device having body potential fixing portion and closed-loop gate structure | Shigenobu Maeda, Kazuya Yamamoto | 2002-03-12 |
| 6127892 | Amplification circuit | Kimio Ueda, Hisayasu Satoh | 2000-10-03 |
| 6069579 | Folding type A/D converter and folding type A/D converter circuit | Masao Ito, Takeshi Shigenobu, Toshio Kumamoto, Takahiro Miki | 2000-05-30 |
| 5973539 | Mixer circuit for mixing two signals having mutually different frequencies | Hisayasu Satoh | 1999-10-26 |