Inventor · disambiguated record
Tetsuji Nakazawa
Also filed as: NAKAZAWA TETSUJI
7 granted patents·87 citations·filing 1979–2002
85Inventor score
Top patents by PatentIndex Score
7 records- 0175US6666371B2Sealing system for electronic device and sealing method thereforFUJITSU MEDIA DEVICES LTD·Filed 2002·Granted Dec 23, 2003·18 cites·13 claims
- 0269US6150888APhase locked loop circuit, reproduction apparatus and phase locking methodSONY CORP·Filed 1998·Granted Nov 21, 2000·24 cites·30 claims
- 0349US6185172B1Rotation control apparatus, reproduction apparatus to which rotation control apparatus is applied, and rotation control methodSONY CORP·Filed 1998·Granted Feb 6, 2001·10 cites·7 claims
- 0448US4360846AOperating mode change-over apparatus in tape recording and/or reproducing apparatusSONY CORP·Filed 1979·Granted Nov 23, 1982·6 cites·14 claims
- 0546US5939948APhase locked loop circuit and reproducing apparatusSONY CORP·Filed 1998·Granted Aug 17, 1999·14 cites·11 claims
- 0643US4395739ARecording/reproducing apparatus with selective attenuation of reproduced signals to facilitate comprehension of external speech signalsSONY CORP·Filed 1982·Granted Jul 26, 1983·12 cites·22 claims
- 0736US6256274B1Data erasure preventing method and circuit thereof and optical disc apparatus mounting the sameSONY CORP·Filed 1993·Granted Jul 3, 2001·3 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →