Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6542458 | Information recording medium having wobbled groves | Harukazu Miyamoto, Yoshio Suzuki, Motoyuki Suzuki, Hisataka Sugiyama, Hiroyuki Minemura +1 more | 2003-04-01 |
| 6493295 | Information recording apparatus | Harukazu Miyamoto, Yoshio Suzuki, Motoyuki Suzuki, Hisataka Sugiyama, Hiroyuki Minemura +1 more | 2002-12-10 |
| 6490233 | Optical reproducing method | Harukazu Miyamoto, Yoshio Suzuki, Motoyuki Suzuki, Hisataka Sugiyama, Hiroyuki Minemura +1 more | 2002-12-03 |
| 6438078 | Optical disc apparatus and method thereof | Shigeki Yamazaki, Hiroyuki Minamura, Hisataka Sugiyama, Makoto Itagaki | 2002-08-20 |
| 6388986 | Information recording medium having wobbled groove structure | Harukazu Miyamoto, Yoshio Suzuki, Motoyuki Suzuki, Hisataka Sugiyama, Hiroyuki Minemura +1 more | 2002-05-14 |
| 6388987 | Information recording medium having wobbled groove structure and plural zones | Harukazu Miyamoto, Yoshio Suzuki, Motoyuki Suzuki, Hisataka Sugiyama, Hiroyuki Minemura +1 more | 2002-05-14 |
| 6345023 | Optical disc apparatus with different frequencies of wobble signal and clock signal for rotation control | Toshimitsu Kaku, Toshiaki Ishibashi, Atsushi Saito | 2002-02-05 |
| 6301210 | Optical disc apparatus and method thereof | Shigeki Yamazaki, Hiroyuki Minamura, Hisataka Sugiyama, Makoto Itagaki | 2001-10-09 |
| 6295258 | Method for recording and reproducing information by pre-pits detection | Toshimitsu Kaku, Toru Kawashima, Takehiko Sekine, Hisataka Sugiyama, Yosiho Suzuki | 2001-09-25 |
| 6219331 | Information recording medium with tracks having a groove structure having a fixed cycle of wobble | Harukazu Miyamoto, Yoshio Suzuki, Motoyuki Suzuki, Hisataka Sugiyama, Hiroyuki Minemura +1 more | 2001-04-17 |
| 6188654 | Method and apparatus for recording/reproducing by pre-pits detection | Toshimitsu Kaku, Toru Kawashima, Takehiko Sekine, Hisataka Sugiyama, Yosiho Suzuki | 2001-02-13 |
| 6091678 | Method and apparatus for detecting position of alternated land and groove of information recording medium | Toru Kawashima, Hisataka Sugiyama, Hiroyuki Minamura, Yoshio Suzuki, Hisamitsu Tanaka | 2000-07-18 |
| 6088307 | Wobble signal detecting circuit, wobble abnormality detecting circuit, information processing apparatus using these circuits and method and recording medium used in the apparatus or method | Toshimitsu Kaku, Tetsuya Ikeda, Toshiaki Ishibashi, Kazuo Shigematsu | 2000-07-11 |
| 5936933 | Information recording medium and method and apparatus for recording and reproducing information using the same | Harukazu Miyamoto, Yoshio Suzuki, Motoyuki Suzuki, Hisataka Sugiyama, Hiroyuki Minemura +1 more | 1999-08-10 |
| 5930228 | Method and apparatus for recording and reproducing information using pseudo identification signal | Harukazu Miyamoto, Yoshio Suzuki, Motoyuki Suzuki, Hisataka Sugiyama, Hiroyuki Minemura +1 more | 1999-07-27 |
| 5761172 | Method of optical reproduction using pulsed light | Hiroyuki Minemura, Hisataka Sugiyama, Harukazu Miyamoto | 1998-06-02 |
| 5608710 | Phase changing recording medium with amorphous points each formed by a pair of high power and low recording pulses | Hiroyuki Minemura | 1997-03-04 |
| 5572502 | Optical disk apparatus | Atsuko Naruse, Yoshihito Maeda, Yoshimi Kato, Isao Ikuta, Hisashi Andoh +4 more | 1996-11-05 |
| 5377178 | Data recording/reproducing method and apparatus using a recording medium having clock marks recorded in a wobbled track for read/write synchronization | Takeshi Maeda, Takeshi Nakao, Kiyoshi Matsumoto, Atsushi Saito, Hiroyuki Minemura | 1994-12-27 |