Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6128271 | Optical recording medium | — | 2000-10-03 |
| 5843626 | Method for manufacturing a master disc for optical discs | Hiroyuki Ohira, Nobuki Yamaoka, Yutaka Murakami | 1998-12-01 |
| 5787224 | Device for and method of editing information | Naoto Itoh | 1998-07-28 |
| 5673359 | Recording disk and recorded information reproducing apparatus | Naoto Itoh | 1997-09-30 |
| 5666460 | Compressed picture information recording apparatus performing in real time | Naoto Itoh | 1997-09-09 |
| 5631888 | Master disc recording apparatus and method for recording data on different types of master discs | Naoto Itoh | 1997-05-20 |
| 5579121 | Real-time image compression processor | Hiroaki Watanabe, Naoto Itoh | 1996-11-26 |
| 5243587 | Disc playing apparatus capable of both long time reproduction and high speed access | Naoto Itoh, Yoshihisa Nagai | 1993-09-07 |
| 5130970 | Optical recording apparatus and optical disk | — | 1992-07-14 |
| 4947384 | Optical disk having narrow and wide guide grooves | Kenji Suzuki, Toshihiko Takishita, Satoru Fukuoka, Hirokazu Hashikawa, Tsuyoshi Hayashi | 1990-08-07 |
| 4888491 | Device for measuring angular deviation of flat plate | Masaki Kobayashi | 1989-12-19 |
| 4837130 | Optical disk manufacturing method | Kenji Suzuki, Satoru Fukuoka, Toshihiko Takishita, Tuyoshi Hayashi | 1989-06-06 |