Inventor · disambiguated record
Kaichi Tatsuzawa
Also filed as: TATSUZAWA KAICHI
12 granted patents·644 citations·filing 1976–2002
93Inventor score
Files withSONY CORP12
Top patents by PatentIndex Score
12 records- 0197US4163258ANoise reduction systemSONY CORP·Filed 1976·Granted Jul 31, 1979·163 cites·24 claims
- 0292US5142537AVideo signal processing circuitSONY CORP·Filed 1990·Granted Aug 25, 1992·148 cites·17 claims
- 0392US4914527ARecording and reproducing digital video and audio signals together with a time code signal which is within user control words of the audio dataSONY CORP·Filed 1989·Granted Apr 3, 1990·107 cites·26 claims
- 0489US6441844B1Solid-pictorial video signal generating apparatus, solid-pictorial video signal transmitting apparatus, solid-pictorial video signal receiving apparatus and solid-pictorial video signal transmission switching apparatusSONY CORP·Filed 1999·Granted Aug 27, 2002·115 cites·3 claims
- 0584US4742519AApparatus for decoding error correcting codeSONY CORP·Filed 1986·Granted May 3, 1988·45 cites·8 claims
- 0681US6697100B2Solid-pictorial video signal generating apparatus, solid-pictorial video signal transmitting apparatus, solid-pictorial video signal receiving apparatus and solid-pictorial video signal transmission switching apparatusSONY CORP·Filed 2002·Granted Feb 24, 2004·18 cites·5 claims
- 0759US4802032AServo for VTR drum motor with external reference signal phase modulationSONY CORP·Filed 1987·Granted Jan 31, 1989·11 cites·13 claims
- 0857US4751589AMethod and apparatus for reproducing recorded video signalSONY CORP·Filed 1985·Granted Jun 14, 1988·16 cites·22 claims
- 0950US5450139AApparatus for transmitting video signals comprising a memory backup deviceSONY CORP·Filed 1993·Granted Sep 12, 1995·12 cites·14 claims
- 1043US5771216APhotomagnetic recording device and photomagnetic reproducing deviceSONY CORP·Filed 1997·Granted Jun 23, 1998·5 cites·1 claims
- 1135US4318119AContinuous carrier wave generating circuitSONY CORP·Filed 1979·Granted Mar 2, 1982·3 cites·9 claims
- 1232US5640379APhotomagnetic recording device and photomagnetic reproducing deviceSONY CORP·Filed 1991·Granted Jun 17, 1997·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →