Inventor · disambiguated record
Yoshizumi Inazawa
Also filed as: INAZAWA YOSHIZUMI
26 granted patents·549 citations·filing 1983–2007
97Inventor score
Files withSONY CORP21HEWLETT PACKARD LTD2KONINKL PHILIPS ELECTRONICS NV1PHILIPS CORP1VERBAKEL JOHANNES M M1
Top patents by PatentIndex Score
26 records- 0192US6587948B1Recording apparatus, recording medium, playback apparatus, recording method and playback methodSONY CORP·Filed 1999·Granted Jul 1, 2003·74 cites·6 claims
- 0292US6157606ARecording apparatus, reproducing apparatus and optical recording mediumSONY CORP·Filed 1998·Granted Dec 5, 2000·74 cites·20 claims
- 0391US4873589AData recorder and methodSONY CORP·Filed 1987·Granted Oct 10, 1989·45 cites·11 claims
- 0487US6370090B1Method, device, and information structure for storing audio-centered information with a multi-level table-of-contents (toc) mechanism and doubling of area-tocs, a device for use with such mechanism and a unitary storage medium having such mechanismPHILIPS CORP·Filed 1999·Granted Apr 9, 2002·40 cites·34 claims
- 0586US4899232AApparatus for recording and/or reproducing digital data informationSONY CORP·Filed 1988·Granted Feb 6, 1990·32 cites·6 claims
- 0685US5081548AData storage apparatus and methodHEWLETT PACKARD LTD·Filed 1990·Granted Jan 14, 1992·42 cites·11 claims
- 0782US8427910B2Storing audio-centered information with a multi-level table-of-contents (TOC) mechanism having redundant sub-TOCsVERBAKEL JOHANNES M M·Filed 2007·Granted Apr 23, 2013·6 cites·34 claims
- 0882US5012459AData recorderSONY CORP·Filed 1990·Granted Apr 30, 1991·31 cites·20 claims
- 0977US4641208ARecording/reproducing apparatusSONY CORP·Filed 1985·Granted Feb 3, 1987·22 cites·12 claims
- 1074US5091805AApparatus and method for recording and/or reproducing a digital signalSONY CORP·Filed 1988·Granted Feb 25, 1992·16 cites·10 claims
- 1171US5712838AMethod and apparatus for recording on a disk medium a ΣΔ-modulated signal with a sampling frequency n×44.1 kHzSONY CORP·Filed 1996·Granted Jan 27, 1998·20 cites·11 claims
- 1270US4688115AApparatus for reproducing a digital signalSONY CORP·Filed 1986·Granted Aug 18, 1987·17 cites·8 claims
- 1368US5029022AMethod of storing data on recording tapeHEWLETT PACKARD LTD·Filed 1989·Granted Jul 2, 1991·16 cites·8 claims
- 1465US5379152AData recorder which partitions the recording medium into data information and table of contents informationSONY CORP·Filed 1993·Granted Jan 3, 1995·15 cites·14 claims
- 1562US4821128AApparatus for recording and/or reproducing a control signalSONY CORP·Filed 1987·Granted Apr 11, 1989·12 cites·8 claims
- 1661US4958244AMethod of position detection on a recording mediumSONY CORP·Filed 1989·Granted Sep 18, 1990·12 cites·10 claims
- 1760US5872755AMethod of recording on a disc medium a ΣΔ-modulated signal with a sampling frequency times 44.1 kHzSONY CORP·Filed 1997·Granted Feb 16, 1999·24 cites·6 claims
- 1858US5134529AApparatus and method for recording a digital signalSONY CORP·Filed 1991·Granted Jul 28, 1992·12 cites·4 claims
- 1957US7263051B2Storing audio-centered information with a multi-level table-of contents (TOC) mechanism having redundant sub-TOCsKONINKL PHILIPS ELECTRONICS NV·Filed 2002·Granted Aug 28, 2007·2 cites·33 claims
- 2051US4630142AApparatus for reproducing a digital signalSONY CORP·Filed 1985·Granted Dec 16, 1986·8 cites·7 claims
- 2151US4592036ADisc player with search noise suppressionSONY CORP·Filed 1983·Granted May 27, 1986·6 cites·11 claims
- 2248US4764824ADual servo system for rotating tape head controlSONY CORP·Filed 1986·Granted Aug 16, 1988·7 cites·6 claims
- 2344US5144501AData recorder and method of operationSONY CORP·Filed 1991·Granted Sep 1, 1992·6 cites·10 claims
- 2441US4811315ADisc player with program selection controlSONY CORP·Filed 1983·Granted Mar 7, 1989·4 cites·2 claims
- 2539US5067131AApparatus and method for recording and/or reproducing a digital signalSONY CORP·Filed 1990·Granted Nov 19, 1991·3 cites·14 claims
- 2638US4682312ADisc player with search noise suppressionSONY CORP·Filed 1986·Granted Jul 21, 1987·3 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Yoshizumi Inazawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →