Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9503811 | Digital microphone and position-to-frequency converter | Koichiro Tanoue | 2016-11-22 |
| 8077886 | Digital microphone | Tetsuya Motobayashi | 2011-12-13 |
| 7609187 | ΔΣ modulator and ΔΣ analog-digital converter | Takashi Mizutani | 2009-10-27 |
| 6388597 | &Dgr;-&Sgr; modulator and &Dgr;-&Sgr; A/D converter | Takashi Mizutani | 2002-05-14 |
| 5313117 | Semiconductor logic circuit using two n-type negative resistance devices | — | 1994-05-17 |
| 4776224 | Planetary gear type reduction starter | Yozo Nakamura, Naoyuki Tanaka, Fumiaki Kasubuchi | 1988-10-11 |