Inventor · disambiguated record
Masayuki Shiwa
Also filed as: SHIWA MASAYUKI
10 granted patents·1 pending application·79 citations·filing 1996–2019
87Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD4NAKATA HIDEKI2PANASONIC CORP2NIDEC COPAL CORP1PANASONIC IP MAN CO LTD1
Top patents by PatentIndex Score
11 records- 0176US7636924B2Frame for optical disk unit and the optical disk unitPANASONIC CORP·Filed 2005·Granted Dec 22, 2009·3 cites·6 claims
- 0274US7812491B2Stepping motorNIDEC COPAL CORP·Filed 2007·Granted Oct 12, 2010·7 cites·8 claims
- 0373US6249506B1Medium attaching device and disk drive apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Jun 19, 2001·26 cites·19 claims
- 0472US6680896B2Medium attaching device and disk drive apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 20, 2004·10 cites·5 claims
- 0571US8130600B2Drive device, optical head, and optical disk recording/reproducing deviceNAKATA HIDEKI·Filed 2007·Granted Mar 6, 2012·2 cites·8 claims
- 0670US6181663B1Disk apparatus with sliding tray and lock arm for preventing sliding tray movementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jan 30, 2001·27 cites·20 claims
- 0767US8108884B2Optical disk recording/reproducing device and optical headNAKATA HIDEKI·Filed 2007·Granted Jan 31, 2012·1 cites·12 claims
- 0866US7784067B2Optical disk apparatusPANASONIC CORP·Filed 2006·Granted Aug 24, 2010·1 cites·9 claims
- 0936US2001024419A1Medium attaching device and disk drive apparatusFiled 2001·Application pending·0 cites
- 1035US11335363B2Tonearm device and reproduction devicePANASONIC IP MAN CO LTD·Filed 2019·Granted May 17, 2022·0 cites·8 claims
- 1133USD538805SCover portion for optical storage media trayMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Mar 20, 2007·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →