Inventor · disambiguated record
Masatoshi Okamura
Also filed as: OKAMURA MASATOSHI · SHIBA HARUO
94 granted patents·1 pending application·768 citations·filing 1978–2019
99Inventor score
Top patents by PatentIndex Score
95 records- 0192US6452748B1Tape cartridge with matched brake lock and brake release plateTDK CORP·Filed 2000·Granted Sep 17, 2002·37 cites·3 claims
- 0291US6205115B1Disc cartridgeTDK CORP·Filed 1998·Granted Mar 20, 2001·70 cites·20 claims
- 0390US6411466B1Tape cartridgeTDK CORP·Filed 2000·Granted Jun 25, 2002·30 cites·4 claims
- 0481US6388838B1Tape cartridgeTDK CORP·Filed 2000·Granted May 14, 2002·14 cites·2 claims
- 0581US5034839AStructures for fixedly supporting tape guides in a magnetic tape cassetteTDK CORP·Filed 1989·Granted Jul 23, 1991·26 cites·8 claims
- 0679US6490133B1Tape cartridge with a cell for a leader hook member and a cell for a leaderTDK CORP·Filed 2000·Granted Dec 3, 2002·13 cites·1 claims
- 0778US6108298ADisc cartridgeTDK CORP·Filed 1998·Granted Aug 22, 2000·32 cites·27 claims
- 0874US4422119ALeader tapeKAWAKAMI YOSHIO·Filed 1981·Granted Dec 20, 1983·19 cites·9 claims
- 0971US6547174B1Housing for tape cartridge and hold for mold for forming the sameTDK CORP·Filed 2000·Granted Apr 15, 2003·8 cites·1 claims
- 1069US4304374ATape cassetteTDK ELECTRONICS CO LTD·Filed 1979·Granted Dec 8, 1981·13 cites·4 claims
- 1168US4631619AMagnetic tape cassette having improved reel locking meansTDK CORP·Filed 1985·Granted Dec 23, 1986·15 cites·4 claims
- 1267US6450432B1Tape cartridgeTDK CORP·Filed 2000·Granted Sep 17, 2002·6 cites·12 claims
- 1367US5074487ATape reel for tape cassetteTDK CORP·Filed 1989·Granted Dec 24, 1991·14 cites·18 claims
- 1466US4988573AMedium related membersTDK CORP·Filed 1989·Granted Jan 29, 1991·13 cites·2 claims
- 1566US4371286ATapping boss of magnetic tape cassetteTDK ELECTRONICS CO LTD·Filed 1981·Granted Feb 1, 1983·12 cites·4 claims
- 1665US6994287B2Tape cartridgeTDK CORP·Filed 2003·Granted Feb 7, 2006·5 cites·4 claims
- 1764US4781340AMagnetic tape cassetteTDK CORP·Filed 1984·Granted Nov 1, 1988·11 cites·1 claims
- 1862US5232093ATape cassette housingTDK CORP·Filed 1992·Granted Aug 3, 1993·13 cites·21 claims
- 1962US4769730AMagnetic tape cassette with an improved guard panelTDK CORP·Filed 1985·Granted Sep 6, 1988·12 cites·4 claims
- 2062US4422599AMagnetic tape cassetteTDK ELECTRONICS CO LTD·Filed 1981·Granted Dec 27, 1983·10 cites·3 claims
- 2161US6094326ADisc cartridge with improved shutter mechanismTDK CORP·Filed 1997·Granted Jul 25, 2000·15 cites·30 claims
- 2261US4358070AMagnetic tape cassetteTDK ELECTRONICS CO LTD·Filed 1980·Granted Nov 9, 1982·10 cites·3 claims
- 2361US4227622ATape cassetteTDK ELECTRONICS CO LTD·Filed 1979·Granted Oct 14, 1980·9 cites·6 claims
- 2461US4195797ATape cassetteTDK ELECTRONICS CO LTD·Filed 1978·Granted Apr 1, 1980·9 cites·3 claims
- 2560US6243355B1Disk cartridge with error insertion prevention mechanismTDK CORP·Filed 1999·Granted Jun 5, 2001·14 cites·4 claims
- 2660US5004180AMagnetic tape cassetteTDK CORP·Filed 1990·Granted Apr 2, 1991·13 cites·7 claims
- 2760US4885651ATape cassette with low friction slide member for guiding movement of a lid thereonTDK CORP·Filed 1987·Granted Dec 5, 1989·9 cites·17 claims
- 2859US4585187AMagnetic tape cassetteTDK CORP·Filed 1985·Granted Apr 29, 1986·11 cites·4 claims
- 2958US6418113B1Disk cartridgeTDK CORP·Filed 1999·Granted Jul 9, 2002·13 cites·8 claims
- 3058US4438860AMagnetic tape cassetteTDK ELECTRONICS CO LTD·Filed 1981·Granted Mar 27, 1984·9 cites·3 claims
- 3158US4181272ATape cassette reelTDK ELECTRONICS CO LTD·Filed 1978·Granted Jan 1, 1980·8 cites·3 claims
- 3256US4546936AMagnetic tape cassette casingTDK CORP·Filed 1984·Granted Oct 15, 1985·8 cites·1 claims
- 3356US4504027AMagnetic tape clamping deviceTDK CORP·Filed 1983·Granted Mar 12, 1985·8 cites·4 claims
- 3456US4386746AMagnetic tape cassetteTDK ELECTRONICS CO LTD·Filed 1980·Granted Jun 7, 1983·8 cites·1 claims
- 3556US4187998ATape cassetteTDK ELECTRONICS CO LTD·Filed 1978·Granted Feb 12, 1980·7 cites·4 claims
- 3655US5954198ACartridge receiving casingTDK CORP·Filed 1998·Granted Sep 21, 1999·12 cites·21 claims
- 3755US4212437ATape cassetteTDK ELECTRONICS CO LTD·Filed 1978·Granted Jul 15, 1980·7 cites·6 claims
- 3854US4457474AMagnetic tape cartridgeTDK ELECTRONICS CO LTD·Filed 1982·Granted Jul 3, 1984·13 cites·3 claims
- 3953US4930714AReel for a magnetic tapeTDK CORP·Filed 1989·Granted Jun 5, 1990·8 cites·4 claims
- 4052US5189583AMagnetic tape cassette having ribs in reel areasTDK CORP·Filed 1991·Granted Feb 23, 1993·8 cites·3 claims
- 4152US5107386AMagnetic tape cassetteTDK CORP·Filed 1990·Granted Apr 21, 1992·8 cites·7 claims
- 4251US6307831B1Disc cartridge having reference holesTDK CORP·Filed 1998·Granted Oct 23, 2001·9 cites·9 claims
- 4351US6191920B1Tape cassette with tape guides press-fit over ribbed guide postsTDK CORP·Filed 1999·Granted Feb 20, 2001·9 cites·6 claims
- 4450US6388837B1Tape cartridgeTDK CORP·Filed 2000·Granted May 14, 2002·1 cites·3 claims
- 4550US4358071ACassette caseTDK ELECTRONICS CO LTD·Filed 1980·Granted Nov 9, 1982·11 cites·2 claims
- 4649US4973012AMagnetic tape cassetteTDK CORP·Filed 1989·Granted Nov 27, 1990·7 cites·3 claims
- 4748US6370108B1Disc cartridgeTDK CORP·Filed 1998·Granted Apr 9, 2002·8 cites·12 claims
- 4848US6125011ADisc cartridge with particular cover configurationTDK CORP·Filed 1997·Granted Sep 26, 2000·8 cites·18 claims
- 4948US5492283ATape casette and reel spring thereforTDK CORP·Filed 1993·Granted Feb 20, 1996·7 cites·6 claims
- 5048US4663689ATape pad for a magnetic tape cassetteTDK CORP·Filed 1985·Granted May 5, 1987·7 cites·2 claims
Showing the top 50 of 95 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →