Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10263625 | TDC circuit and PLL circuit | — | 2019-04-16 |
| 9350363 | Voltage controlled oscillator circuit and frequency synthesizer | Hideaki Masuoka | 2016-05-24 |
| 8988157 | Oscillation circuit and semiconductor integrated circuit including the same | — | 2015-03-24 |
| 8521112 | Quadrature mixer | Masaki Kitsunezuka | 2013-08-27 |
| 8415983 | Digital phase comparator | — | 2013-04-09 |
| 7565127 | Signal processing unit | Noriaki Matsuno | 2009-07-21 |
| 6137646 | Disk apparatus using coincidence detection to generate variable sector pulses | Eiji Okamura, Tatsuya Gofuku, Chihiro Ono, Kazuhide Ohba, Atsushi Satoh +2 more | 2000-10-24 |
| 5798885 | Head positioning control for disk apparatus using peak detection, polarity detection and sector mark detection | Masaru Saiki, Tsutomu Sasaki, Hirokazu Ishizaki, Eiji Okamura, Tatsuya Gofuku +10 more | 1998-08-25 |