Issued Patents All Time
Showing 51–75 of 105 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6519351 | Method and apparatus for recording and reproducing electronic watermark information, and recording medium | Hiroyuki Kimura, Takao Arai, Hiroshi Yoshiura | 2003-02-11 |
| 6490236 | Method and apparatus for optical disk device | Yasushi Fukuda, Nobuhiro Tokushuku | 2002-12-03 |
| 6438172 | Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium | Masafumi Nakamura | 2002-08-20 |
| 6434322 | Reproducing method and apparatus, for a video signal having copy control information | Hiroyuki Kimura, Takao Arai | 2002-08-13 |
| 6424477 | Information signal recording and playback method and apparatus therefor | Seiichi Saito, Masafumi Nakamura, Junji Shiokawa, Osamu Kawamae | 2002-07-23 |
| 6404781 | Data transmission method for embedded data, data transmitting and reproducing apparatuses and information recording medium therefor | Osamu Kawamae, Hiroshi Yoshiura, Takao Arai | 2002-06-11 |
| 6404979 | Optical disk and optical disk reproduction apparatus | Masayuki Hirabayashi, Hideaki Suzuki, Masafumi Nakamura, Yutaka Nagai | 2002-06-11 |
| 6347353 | Information medium having digital signals recorded thereon | Hiroshi Hirayama, Osamu Kawamae, Masayuki Hirabayashi, Yutaka Nagai | 2002-02-12 |
| 6332174 | Digital signal reproducing apparatus | Hiroshi Hirayama, Osamu Kawamae, Masayuki Hirabayashi, Yutaka Nagai | 2001-12-18 |
| 6324618 | Optical disk reproducing apparatus | Hiroshi Hirayama, Osamu Kawamae, Masayuki Hirabayashi, Yutaka Nagai | 2001-11-27 |
| 6314542 | Information recording method, reproducing method, and reproducing apparatus | Yutaka Nagai, Masafumi Nakamura, Masayuki Hirabayashi | 2001-11-06 |
| 6308003 | Method of recording image data and method of reproducing information from optical disk | Masayuki Hirabayashi, Hideaki Suzuki, Masafumi Nakamura, Yutaka Nagai | 2001-10-23 |
| 6304532 | Disk reproducing apparatus controlling read signal from a disk by using demodulated identifying signal and stored identifying signal in a memory | Izumi Kimura, Munehiro Nishioka, Hiroshi Tadokoro | 2001-10-16 |
| 6295596 | Data reproducing apparatus | Masayuki Hirabayashi, Yutaka Nagai | 2001-09-25 |
| 6233649 | Digital signal reproducing method | Hiroshi Hirayama, Osamu Kawamae, Masayuki Hirabayashi, Yutaka Nagai | 2001-05-15 |
| 6219320 | Recording and reproducing system and equalizing method for use in it. | Nobutaka Amada, Takao Arai | 2001-04-17 |
| 6192013 | Disk reproducing apparatus controlling read signal from a disk by using demodulated identifying signal and stored identifying signal in a memory | Izumi Kimura, Munehiro Nishioka, Hiroshi Tadokoro | 2001-02-20 |
| 6181664 | Disk cartridge and disk device using the same | Kiyoshi Kano, Yasuo Ohtsuka, Mikio Shiraishi, Masafumi Nakamura, Masayuki Inoue +2 more | 2001-01-30 |
| 6181660 | Digital signal processor circuit for reproduction of digital data | Hiroshi Hirayama, Hiroyuki Gunji | 2001-01-30 |
| 6177513 | Method for evaluating artificial receptors | Jun Matsui, Daigo Fukuma, Toshihiro Mizukami | 2001-01-23 |
| 6154806 | Method for recording digital signals on multiple-layered disks | Hiroshi Hirayama, Osamu Kawamae, Masayuki Hirabayashi, Yutaka Nagai | 2000-11-28 |
| 6108299 | Disk cartridge and disk device using the same | Kiyoshi Kano, Yasuo Ohtsuka, Mikio Shiraishi, Masafumi Nakamura, Masayuki Inoue +2 more | 2000-08-22 |
| 6092232 | Disk data reproducing apparatus and disk data reproducing method | Yutaka Nagai, Tomoaki Kudo, Masayuki Hirabayashi, Hiroyuki Gunji | 2000-07-18 |
| 6075763 | Disk cartridge and disk device using the same | Kiyoshi Kano, Yasuo Ohtsuka, Mikio Shiraishi, Masafumi Nakamura, Masayuki Inoue +2 more | 2000-06-13 |
| 6076135 | Information medium having a plurality of recording surfaces | Hiroshi Hirayama, Osamu Kawamae, Masayuki Hirabayashi, Yutaka Nagai | 2000-06-13 |