Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7344256 | Projection type image display apparatus | Takashi Watanabe, Kenichi Shiba | 2008-03-18 |
| 7141733 | Karaoke apparatus, content reproducing apparatus, method of managing music piece data for a karaoke apparatus, and method of managing content data for content reproducing apparatus | Masakazu Fujishima, Shingo Kamiya | 2006-11-28 |
| 6374979 | Karaoke system money counting machine and karaoke apparatus | Shingo Kamiya | 2002-04-23 |
| 5982816 | Digital communication system using packet assembling/disassembling and eight-to-fourteen bit encoding/decoding | Hirokazu Kato | 1999-11-09 |
| 5956459 | Karaoke apparatus having video mixer of main and insert pictures | Hirokazu Kato, Hiroshi Mino | 1999-09-21 |
| 5810603 | Karaoke network system with broadcasting of background pictures | Hirokazu Kato, Youji Semba | 1998-09-22 |
| 4580128 | Digital signal processing device | Norio Tomisawa | 1986-04-01 |
| 4454607 | FM Stereophonic receiver with CPU controlled tuning and demodulating | — | 1984-06-12 |
| 4404430 | FM Stereo demodulation circuit with voltage dividing and multiplexing techniques | — | 1983-09-13 |
| 4403113 | Circuit for cancelling sinusoidal pilot signal contained in composite signal | — | 1983-09-06 |
| 4385399 | Display device | — | 1983-05-24 |
| 4378573 | Magnetic recording and reproducing system with noise cancellation | — | 1983-03-29 |
| 4365349 | Radio receiver having phase locked loop and automatic frequency control loop for stably maintaining local oscillator frequency of voltage-controlled local oscillator | Shigenobu Kimura | 1982-12-21 |
| 4356568 | Receptive condition automatic selection device for FM receiver | Naobumi Kimura | 1982-10-26 |
| 4348666 | Signal level display apparatus | — | 1982-09-07 |
| 4344187 | Radio receiver with system for maintaining optimum tuning | Shigenobu Kimura | 1982-08-10 |
| 4342000 | FM Detecting circuit | — | 1982-07-27 |
| 4339826 | Radio receiver having phase locked loop frequency synthesizer | Shigenobu Kimura | 1982-07-13 |
| 4328589 | System for indicating multipath interference in radio receiver | — | 1982-05-04 |
| 4293736 | Noise eliminator for radio receiver | — | 1981-10-06 |
| 4278980 | Antenna input circuit for radio receiver | Masahiro Takeyama | 1981-07-14 |
| 4272788 | Receiver for television sound multiplex broadcasting and FM stereo multiplex broadcasting | — | 1981-06-09 |
| 4249261 | Superheterodyne radio receiver with nearby-station interference detection | — | 1981-02-03 |
| 4228546 | AM Radio receiver | — | 1980-10-14 |
| 4228540 | Radio receiver | — | 1980-10-14 |