Sony Corp
Sony CorpActive Patents
0
Total Holdings
31
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| JPH0380443A | Optical disk | Expired / Lapsed | 1989-08-22 | — | 0 | Details |
| JPS63276732A | Information recording medium | Expired / Lapsed | 1987-05-08 | — | 0 | Details |
| JPS6151668A | Floppy disc and floppy disc drive | Expired / Lapsed | 1984-08-22 | — | 0 | Details |
| JPS58222331A | Reproducer of character information | Expired / Lapsed | 1982-06-21 | — | 0 | Details |
| US5939823A | Fluorescent screen display device having electrodeposited c… | Expired / Lapsed | 1995-06-30 | 1999-08-17 | 5 | Details |
| US5436492A | Charge-coupled device image sensor | Expired / Lapsed | 1993-06-21 | 1995-07-25 | 16 | Details |
| US5152783A | Antithrombogenic material | Expired / Lapsed | 1990-08-21 | 1992-10-06 | 17 | Details |
| US4893296A | Optical pickup device | Expired / Lapsed | 1988-07-15 | 1990-01-09 | 15 | Details |
| US4837802A | Radio communication method and system | Expired / Lapsed | 1987-09-17 | 1989-06-06 | 12 | Details |
| US4677476A | Method for detecting a movement of a television signal | Expired / Lapsed | 1985-10-24 | 1987-06-30 | 4 | Details |
| US4587567A | Flat picture tube television receiver including picture tub… | Expired / Lapsed | 1984-03-01 | 1986-05-06 | 10 | Details |
| US4361627A | Magnetic recording medium | Expired / Lapsed | 1980-10-17 | 1982-11-30 | 16 | Details |
| US4245252A | Television camera having a character display | Expired / Lapsed | 1977-08-04 | 1981-01-13 | 6 | Details |
| US4173739A | Overload detecting circuit for a PWM amplifier | Expired / Lapsed | 1978-09-18 | 1979-11-06 | 9 | Details |
| US4151557A | Television receiver operating mode selector | Expired / Lapsed | 1977-06-08 | 1979-04-24 | 5 | Details |
| US4139865A | Television receiver with video changeover switch responsive… | Expired / Lapsed | 1977-06-08 | 1979-02-13 | 7 | Details |
| US4106056A | Solid state CCD cameras having phase adjustment of luminanc… | Expired / Lapsed | 1977-05-24 | 1978-08-08 | 11 | Details |
| US4087850A | Power supply circuit | Expired / Lapsed | 1977-01-21 | 1978-05-02 | 6 | Details |
| US4012833A | Method of making display structure having light emitting di… | Expired / Lapsed | 1975-11-07 | 1977-03-22 | 12 | Details |
| US3968514A | Magnetic recording and/or reproducing apparatus | Expired / Lapsed | 1974-12-30 | 1976-07-06 | 12 | Details |
| US3963456A | Automatic assembly apparatus for inserting electronic conne… | Expired / Lapsed | 1974-10-09 | 1976-06-15 | 8 | Details |
| US3942042A | Pulse waveform generator circuit | Expired / Lapsed | 1974-09-25 | 1976-03-02 | 14 | Details |
| US3845394A | Broadcast receiver | Expired / Lapsed | 1972-11-27 | 1974-10-29 | 90 | Details |
| US3821535A | Electronic calculator having an indicator blanking circuit | Expired / Lapsed | 1973-01-30 | 1974-06-28 | 10 | Details |
| US3764089A | Recording and reproducing apparatus using magnetic cassette | Expired / Lapsed | 1971-09-10 | 1973-10-09 | 14 | Details |
| US3725572A | Color television camera | Expired / Lapsed | 1971-12-21 | 1973-04-03 | 19 | Details |
| US3679933A | Display system | Expired / Lapsed | 1969-12-22 | 1972-07-25 | 11 | Details |
| US3653456A | Control system for moving vehicle along a predetermined path | Expired / Lapsed | 1970-03-24 | 1972-04-04 | 11 | Details |
| US3648128A | An integrated complementary transistor circuit chip with po… | Expired / Lapsed | 1969-05-21 | 1972-03-07 | 4 | Details |
| US3617822A | Semiconductor integrated circuit | Expired / Lapsed | 1969-10-29 | 1971-11-02 | 6 | Details |
| US3157817A | Transformer circuit for balancing current flow through para… | Expired / Lapsed | 1960-08-24 | 1964-11-17 | 2 | Details |