Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6678859 | Optical disk apparatus and data reading method | — | 2004-01-13 |
| 6628586 | Optical disk and recording and/or reproducing apparatus and method | — | 2003-09-30 |
| 6594216 | Optical disc device | — | 2003-07-15 |
| 6567951 | Optical disc format exhibiting robust error correction coding | — | 2003-05-20 |
| 6546519 | Optical disc recording/reproducing method, optical disc and optical disc device | — | 2003-04-08 |
| 6515958 | Disc-shaped information recording medium | — | 2003-02-04 |
| 6426937 | Disc-shaped information recording medium | — | 2002-07-30 |
| 6367049 | Encoding multiword information by wordwise interleaving | Marten Van Dijk, Ludovicus Marinus Gerardus Maria Tolhuizen, Josephus Arnoldus Henricus Maria Kahlman, Constant P. M. J. Baggen, Masayuk Hattori +2 more | 2002-04-02 |
| 6349400 | Optical disc recording/reproducing method, optical disc and optical disc device | — | 2002-02-19 |
| 6337844 | Disc-shaped information recording medium including alternating lands and grooves on which information is recorded | — | 2002-01-08 |
| 6249508 | Disc-shaped information recording medium having offset address information data | — | 2001-06-19 |
| 6172947 | Method and apparatus for time shifted signal recording and reproduction | — | 2001-01-09 |
| 6058099 | Disc-shaped information recording medium having offset address information data | — | 2000-05-02 |
| 5802027 | Reproduction clock phase correction circuit | — | 1998-09-01 |
| 5715222 | Playback clock generating circuit | Tomohiro Koda | 1998-02-03 |
| 5418768 | Disc-shaped recording medium and apparatus for reproducing track addresses recorded on the disc-shaped recording medium | — | 1995-05-23 |
| 5237554 | Apparatus for generating clock signals for data reproduction | Tetsuji Kawashima | 1993-08-17 |
| 5170385 | Recording medium with unembossed area indicating sector divisions | Tamotsu Yamagami, Shigeaki Wachi, Tetsu Watanabe | 1992-12-08 |
| 4912695 | Method for recording information including error information on a disk | — | 1990-03-27 |
| 4901301 | Region detection system for detecting empty sectors on a recording medium | — | 1990-02-13 |