Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7218584 | Information recording and reproducing apparatus | Akira Shimizu, Yuji Tawaragi | 2007-05-15 |
| 6894955 | Quick access information read and write devices | Masayoshi Yoshida, Shinichi Nagahara, Tsuyoshi Hasebe, Motoji Nakamura | 2005-05-17 |
| 6879771 | Recording timing setting apparatus and information recording apparatus | Masayoshi Yoshida | 2005-04-12 |
| 6728181 | Code judging apparatus and method, record medium judging apparatus and method, and information recording apparatus and method | Masayoshi Yoshida, Tsuyoshi Hasebe, Tetsuaki Kawahara | 2004-04-27 |
| 6603726 | Pre-pit detection unit | Masayoshi Yoshida | 2003-08-05 |
| 6577565 | Optical pickup for performing recording or reading operation on recording medium having prepits | Naoharu Yanagawa, Masayoshi Yoshida | 2003-06-10 |
| 6480448 | Disc player | Eisaku Kawano, Hidehiro Ishii, Eiji Muramatsu, Masahiro Kato, Kunihiko Horikawa | 2002-11-12 |
| 6442115 | Information recording apparatus | Masayoshi Yoshida, Naoharu Yanagawa | 2002-08-27 |
| 6339581 | Disc player having a prepit detecting circuit | Masayoshi Yoshida, Naoharu Yanagawa, Shinichi Nagahara | 2002-01-15 |
| 6324136 | Apparatus for and method of setting accurate recording time point | Masayoshi Yoshida | 2001-11-27 |
| 6292448 | Information recording apparatus | Masayoshi Yoshida | 2001-09-18 |
| 6137756 | Information recording using technique for detecting erroneous recording | Masayoshi Yoshida, Yuji Tawaragi | 2000-10-24 |
| 5446101 | Vinylidene chloride copolymer composition and monolayer film | Noboru Anazawa | 1995-08-29 |
| 5341353 | Actuator position detector, actuator position controller and track search controller | Junichi Yoshio | 1994-08-23 |
| 5216652 | Light spot position detector | Junichi Yoshio | 1993-06-01 |
| 5212675 | Apparatus for detecting position of light spot | Junichi Yoshino | 1993-05-18 |