Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644124 | Photodetector with a multilayer filter and method of producing the same | Toshimasa Hamada, Masaru Iwasaki, Tetsuya Hanamoto, Takahiro Funakoshi, Koji Miyake +1 more | 1997-07-01 |
| 5470694 | Optical memory element and manufacturing method thereof | Kenji Ohta, Junji Hirokane, Akira Takahashi, Tetsuya Inui, Toshihisa Deguchi | 1995-11-28 |
| 5412630 | Tracking system for optical disc memory using tracking error signals from main beam and auxiliary beams | Toshihisa Deguchi, Tetsuya Inui, Kenji Ohta | 1995-05-02 |
| 4925776 | Optical memory element and manufacturing method thereof | Kenji Ohta, Junji Hirokane, Akira Takahashi, Tetsuya Inui, Toshihisa Deguchi | 1990-05-15 |
| 4787076 | Optical disc tracking system with switching of tracking error signals at boundary between track guide and track address | Toshihisa Deguchi, Tetsuya Inui, Kenji Ohta | 1988-11-22 |
| 4650985 | Image readout element | Katsushi Okibayashi | 1987-03-17 |
| 4644406 | Large scale contact type image reading unit using two-dimensional sensor array | Satoshi Nishigaki, Masataka Itoh | 1987-02-17 |
| 4641359 | Two-dimensional image read-out device | Katsushi Okibayashi, Masataka Itoh | 1987-02-03 |
| 4597012 | Two-dimensional image read-out sensor device | Masataka Itoh, Satoshi Nishigaki | 1986-06-24 |
| 4559564 | Two-dimensional image reader | Masataka Itoh | 1985-12-17 |
| 4541015 | Two-dimensional image readout device | Masataka Itoh | 1985-09-10 |