Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5812501 | Optical recording medium having a non-volatile identification code and method for encoding data using same | Mineo Moribe, Haruhiko Izumi, Masakazu Taguchi | 1998-09-22 |
| 5661703 | Optical recording medium having a non-volatile identification code and method for encoding data using same | Mineo Moribe, Haruhiko Izumi, Masakazu Taguchi | 1997-08-26 |
| 5144618 | Optical disc medium | Yasuyuki Goto, Nagaaki Koshino, Kenichi Utsumi, Masahiro Nakada | 1992-09-01 |
| 4984232 | Compatible optical disk | Kenichi Utsumi, Nagaaki Koshino, Yasuyuki Goto, Masahiro Nakada | 1991-01-08 |
| 4889746 | Process for manufacturing an optical recording medium | Kenichi Utsumi, Tetsuya Yuasa, Yasuyuki Goto, Nagaaki Koshino | 1989-12-26 |