Issued Patents All Time
Showing 201–225 of 238 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4994928 | Frequency demodulation circuit | Masahiro Honjo | 1991-02-19 |
| 4979046 | Magnetic recording and reproducing apparatus for recording upper-sidebond-eliminated FM signal | Shinichi Aki, Tsutomu Muraji, Akihiro Takeuchi | 1990-12-18 |
| 4979052 | Digital signal magnetic recording/reproducing apparatus | Toyohiko Matsuta, Masafumi Shimotashiro | 1990-12-18 |
| 4972272 | Multi-channel video tape recorder/player having multiple pairs of video heads | Yoshihiro Morioka, Yoshitomi Nagaoka | 1990-11-20 |
| 4972116 | Light source display tube | Kazunori Tatsuda, Mitsuru Masuda, Hiroshi Kamogawa, Zenichiro Hara, Nobuo Terazaki +3 more | 1990-11-20 |
| 4916548 | Video tape recorder for recording/reproducing two-channel component color video signals | Yoshihiro Morioka | 1990-04-10 |
| 4893056 | Fluorescent display apparatus | Zenichiro Hara, Kazunori Tatsuda, Nobuo Terazaki, Shuji Iwata | 1990-01-09 |
| 4873583 | Magnetic tape recording/reproducing apparatus | Kazuhiro Yamanishi, Akihiro Takeuchi, Yoshitomi Nagaoka | 1989-10-10 |
| 4864424 | Video signal recording/reproducing apparatus | Atsuo Ochi, Akihiro Takeuchi, Kazuhiro Yamanishi | 1989-09-05 |
| 4864421 | System for connecting a video signal recording/reproducing apparatus and a television receiver | Yoshihiro Morioka, Akihiro Takeuchi, Yoshitomi Nagaoka, Noriaki Gentsu, Sakon Nagasaki | 1989-09-05 |
| 4812783 | Phase locked loop circuit with quickly recoverable stability | Masahiro Honjo, Akihiro Takeuchi, Atsuo Ochi, Shinichi Aki, Yukio Nakagawa | 1989-03-14 |
| 4811117 | Video tape recorder for recording and reproducing two-channel component signals of a video signal on a magnetic tape using two pair of heads and alternately delayed signals | Yoshihiro Morioka, Yoshitomi Nagaoka | 1989-03-07 |
| 4811119 | Apparatus for high-density minimal crosstalk recording and reproducing of terminance and chrominance signals using a magnetic tape | Akihiro Takeuchi, Kazuhiro Yamanishi, Sukeichi Miki, Yoshitomi Nagaoka | 1989-03-07 |
| 4807050 | Video signal recording/reproducing apparatus | Akihiro Takeuchi, Kazuhiro Yamanishi, Atsuo Ochi | 1989-02-21 |
| 4765634 | Metal gasket for a cylinder head on an internal combustion engine | Norio Hanba, Akira Tanaka, Tsunehiko Abe | 1988-08-23 |
| 4761690 | Video tape recorder with particular format chrominance and luminance information | Kazuhiro Yamanishi, Akihiro Takeuchi, Atsuo Ochi, Yoshitomi Nagaoka | 1988-08-02 |
| 4760566 | Method of controlling write operation for rotating type recording medium | Yuji Yamane, Takashi Doi | 1988-07-26 |
| 4754145 | Radiation image erase unit for use with stimulable phosphor sheet | — | 1988-06-28 |
| 4720753 | Auto tracking apparatus for scanning tracks with controllable head displacement | Yasuo Iwasaki, Takafumi Nishino | 1988-01-19 |
| 4704639 | Video signal reproduction apparatus | Kazuhiro Yamanishi, Masafumi Shimotashiro | 1987-11-03 |
| 4692663 | Fluorescent display tube for light source | Yosiyuki Okubo, Kazunori Tatsuda | 1987-09-08 |
| 4629994 | FM demodulator | Masafumi Shimotashiro | 1986-12-16 |
| 4623940 | Magnetic reproducing apparatus | Tokikazu Matsumoto, Masahiro Honjo | 1986-11-18 |
| 4618014 | Weight measuring apparatus of vibration type | — | 1986-10-21 |
| 4611252 | Video tape recorder | Kouichi Igata | 1986-09-09 |