Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6130577 | Digital demodulators for phase modulated and amplitude-phase modulated signals | Taiji Kondou, Katsuhiro Furukawa, Yukihito Ishihara | 2000-10-10 |
| 5679971 | Semiconductor integrated circuit | Akihiro Nagatani, Takao Okazaki | 1997-10-21 |
| 5594383 | Analog filter circuit and semiconductor integrated circuit device using the same | — | 1997-01-14 |
| 5515047 | Converter, offset adjustor, and portable communication terminal unit | Kazuo Yamakido, Yoichiro Kobayashi, Masanori Otsuka, Takao Okazaki, Yukihito Ishihara +1 more | 1996-05-07 |
| 5347279 | Analog/digital converter of the over-sampling type with feedback correction to offset sampling error | Yukihito Ishihara, Kazuo Yamakido | 1994-09-13 |
| 5227795 | Over-sampling analog-to-digital converter using a current switching circuit as a local digital-to-analog converter | Kazuo Yamakido, Norimitsu Nishikawa, Katsuhiro Furukawa, Takao Okazaki | 1993-07-13 |