Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6812546 | Current mirror circuit and optical signal circuit using same | Naruichi Yokogawa | 2004-11-02 |
| 6762596 | Constant voltage circuit and infrared remote control receiver using the same | Naruichi Yokogawa | 2004-07-13 |
| 6693466 | Comparator circuit and infrared signal receiving apparatus | Naruichi Yokogawa, Takeshi Nishino | 2004-02-17 |
| 6677732 | Charge and/or discharge circuit, and carrier detector circuit using same | Naruichi Yokogawa, Takeshi Nishino | 2004-01-13 |