Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7106682 | Optical pickup | Tetsuo Ueyama, Keiji Sakai, Yukio Kurata, Katsushige Masui, Naotaka Otsuka +2 more | 2006-09-12 |
| 6868055 | Optical pickup | Tetsuo Ueyama, Keiji Sakai, Yukio Kurata, Katsushige Masui, Naotaka Otsuka +2 more | 2005-03-15 |
| 5694386 | Interpolating gain amplifier for information reproducing apparatus | Hiroshi Fuji | 1997-12-02 |
| 5675569 | Readback circuit for an optical information reading and recording apparatus | Takeshi Yamaguchi, Tsuneo Fujiwara | 1997-10-07 |
| 5673046 | Analog-to-digital conversion circuit for use in information reproduction apparatuses | Hiroshi Fuji, Tsuneo Fujiwara | 1997-09-30 |
| 5548570 | Optical reproducing circuit having, a binarized signal pulse compensation circuit | Takeshi Yamaguchi, Hiroshi Fuji | 1996-08-20 |