Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6745166 | Contents information recording method, contents information processing unit, contents information deciphering method, contents information deciphering unit and media thereof | Takayuki Sugahara | 2004-06-01 |
| 4707733 | Information signal recording disc comprising a connected region formed between parallel program recorded and single program recorded regions, and reproducing apparatus therefor | Tatsuya Shinyagaito, Terumasa Kuramoto, Toyotaka Machida, Kikuji Saito, Shunichi Shichijo +3 more | 1987-11-17 |
| 4695904 | Information signal recording disc recorded with an end signal for selectively preventing unwanted access to predetermined recorded information and disc reproducing apparatus therefor | Tatsuya Shinyagaito, Terumasa Kuramoto, Toyotaka Machida, Kikuji Saito, Shunichi Shichijo +3 more | 1987-09-22 |
| 4630231 | Control program signal demodulating device | Shunichi Shichijo, Toyotaka Machida, Kenji Kaneko, Tatsuya Shinyagaito | 1986-12-16 |
| 4563709 | Rotary record having a spiral track with a video signal and two audio signals recorded thereon | — | 1986-01-07 |
| 4510532 | Rotary recording medium reproducing apparatus | — | 1985-04-09 |
| 4470078 | Pulse driven control circuit for moving a transducer across a rotary recording medium of pulses applied thereto | Katsuyuki Mitsui, Yasutaka Koumatsu | 1984-09-04 |
| 4439791 | Slow-motion reproducing system in an apparatus for reproducing rotary recording medium with mode dependent skip pulse generator and field memories | — | 1984-03-27 |
| 4428002 | Special effects video disc reproducing system for eliminating picture flicker | — | 1984-01-24 |
| 4426692 | Rotary recording medium having an improved three frequency pickup tracking control and reproducing apparatus therefor | — | 1984-01-17 |
| 4402018 | System using a rotating medium for recording cinematographic picture images | Yoshiyo Wada, Hisao Kinjo, Keiji Ozawa, Kazuo Tatsuguchi, Kunio Goto | 1983-08-30 |
| 4383309 | Disc-shaped recording medium reproducing apparatus | — | 1983-05-10 |
| 4380781 | Disc-shaped recording medium reproducing apparatus | — | 1983-04-19 |
| 4380780 | Disc-shaped recording medium reproducing apparatus | Osamu Tajima, Isami Kaneda, Hiroyuki Sugiyama, Takashi Saito, Masafumi Mochizuki | 1983-04-19 |
| 4370740 | Rotary recording medium | — | 1983-01-25 |
| 4340907 | Special reproducing system in an apparatus for reproducing video signals from a rotary recording medium | Kanji Kayanuma | 1982-07-20 |
| 4247741 | Reproducing transducer feeding device in a rotary recording medium reproducing apparatus | Kazuo Tatsuguchi, Tetsushi Akasaka, Kanji Kayanuma | 1981-01-27 |