Inventor · disambiguated record
Katsuichi Tachi
Also filed as: TACHI KATSUICHI
28 granted patents·542 citations·filing 1974–1999
97Inventor score
Top patents by PatentIndex Score
28 records- 0199US4175267AMethod and apparatus of inserting an address signal in a video signalSONY CORP·Filed 1978·Granted Nov 20, 1979·156 cites·6 claims
- 0296US4159480AMethod of inserting an address signal in a video signalSONY CORP·Filed 1977·Granted Jun 26, 1979·55 cites·14 claims
- 0393US4318146ARotary head assemblySONY CORP·Filed 1979·Granted Mar 2, 1982·48 cites·4 claims
- 0492US4167759AApparatus for inserting an address signal in a frame of the vertical blanking period of a television signalSONY CORP·Filed 1977·Granted Sep 11, 1979·40 cites·3 claims
- 0589US4134130AMethod and apparatus of inserting an address signal in a video signalSONY CORP·Filed 1977·Granted Jan 9, 1979·30 cites·6 claims
- 0686US4819087ASystem for precisely editing audio signals on a videotapeSONY CORP·Filed 1982·Granted Apr 4, 1989·29 cites·12 claims
- 0785US4139870ACircuit for demodulating a pulse width modulated signalSONY CORP·Filed 1977·Granted Feb 13, 1979·26 cites·11 claims
- 0885US4139872AVideo signal reproducing apparatus with a track searching arrangementSONY CORP·Filed 1977·Granted Feb 13, 1979·25 cites·16 claims
- 0982US4210939AMethod and system for synchronizing the movement of plural recording mediaSONY CORP·Filed 1978·Granted Jul 1, 1980·24 cites·15 claims
- 1065US4839750AMethod and apparatus for recording and/or reproducing a PCM signal with asynchronous operationSONY CORP·Filed 1986·Granted Jun 13, 1989·13 cites·24 claims
- 1162US5543868AMethod and apparatus of reproducing a digital signal recorded on a movie filmSONY CINEMA PRODUCTS CORP·Filed 1994·Granted Aug 6, 1996·13 cites·6 claims
- 1260US4423440ACode signal reading apparatusSONY CORP·Filed 1981·Granted Dec 27, 1983·10 cites·4 claims
- 1358US5508761AApparatus for reproducing a digital pattern from motion picture film, and the motion picture filmSONY CORP·Filed 1994·Granted Apr 16, 1996·8 cites·10 claims
- 1457US4232347AVideo tape control time code readingSONY CORP·Filed 1978·Granted Nov 4, 1980·8 cites·15 claims
- 1551US4237499AVideo tape control time code readingSONY CORP·Filed 1978·Granted Dec 2, 1980·6 cites·10 claims
- 1650US4282552AApparatus for reproducing a video signal including an address signal when the video tape moves at various speedsSONY CORP·Filed 1979·Granted Aug 4, 1981·6 cites·6 claims
- 1748US5761349AApparatus for reading optical data from a motion picture film and a light source thereforSONY CORP·Filed 1995·Granted Jun 2, 1998·6 cites·2 claims
- 1848US4300171AMagnetic recording medium direction sensingSONY CORP·Filed 1979·Granted Nov 10, 1981·5 cites·4 claims
- 1942US5991003ASynchronous control apparatusSONY CINEMA PRODUCTS CORP·Filed 1998·Granted Nov 23, 1999·6 cites·13 claims
- 2039US5463425ASynchronizing apparatus for synchronizing audio signal with video signalSONY CORP·Filed 1995·Granted Oct 31, 1995·6 cites·6 claims
- 2138US4963868AFrame synchronizing method and systemSONY CORP·Filed 1988·Granted Oct 16, 1990·10 cites·16 claims
- 2236US6016182AMotion picture film and a technique for recording and/or reproducing data from such motion picture filmSONY CINEMA PRODUCTS CORP·Filed 1994·Granted Jan 18, 2000·3 cites·17 claims
- 2335US4814902AApparatus for recording and/or reproducing with video and multiple audio rotary headsSONY CORP·Filed 1986·Granted Mar 21, 1989·3 cites·12 claims
- 2433US6188806B1Apparatus for reading optical data from a motion picture film and a light source thereforSONY CORP·Filed 1999·Granted Feb 13, 2001·1 cites·8 claims
- 2532US6097255APhase locked loop circuit for eliminating impulses in output data which tend to produce malfunctionsSONY CINEMA PRODUCTS CORP·Filed 1998·Granted Aug 1, 2000·4 cites·2 claims
- 2630US6028972AApparatus for reading optical data from a motion picture film and a light source thereforSONY CORP·Filed 1997·Granted Feb 22, 2000·1 cites·3 claims
- 2730US3956767ASignal recording and/or reproducing apparatus with phase shifting to reduce signal amplitude at overlap pointsSONY CORP·Filed 1974·Granted May 11, 1976·0 cites·10 claims
- 2826US5608473AAudio data readout device for motion picture film and clock generating device in motion picture film changeover systemSONY CORP·Filed 1995·Granted Mar 4, 1997·0 cites·10 claims
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