Inventor · disambiguated record
Masaru Ikebe
Also filed as: IKEBE MASARU
64 granted patents·6 pending applications·837 citations·filing 1985–2007
99Inventor score
Top patents by PatentIndex Score
70 records- 0191US6205115B1Disc cartridgeTDK CORP·Filed 1998·Granted Mar 20, 2001·70 cites·20 claims
- 0291US5278717ADisk cartridgeTDK CORP·Filed 1991·Granted Jan 11, 1994·57 cites·16 claims
- 0389US6568526B1Stackable compact disk caseTDK ELECTRONICS CO LTD·Filed 2000·Granted May 27, 2003·35 cites·12 claims
- 0488US5385235ACasing for housing a cartridgeTDK CORP·Filed 1993·Granted Jan 31, 1995·45 cites·8 claims
- 0588US5153801ADisk cartridge having coupled shutters for closing plural cartridge openingsTDK CORP·Filed 1991·Granted Oct 6, 1992·44 cites·26 claims
- 0681US4862448ADisc cartridge and casing thereforTDK CORP·Filed 1987·Granted Aug 29, 1989·26 cites·21 claims
- 0780US4977475ALining member for the surface of a casing for a disc cartridgeTDK CORP·Filed 1989·Granted Dec 11, 1990·23 cites·5 claims
- 0878US6108298ADisc cartridgeTDK CORP·Filed 1998·Granted Aug 22, 2000·32 cites·27 claims
- 0978US5195084ADisc cartridgeTDK CORP·Filed 1991·Granted Mar 16, 1993·27 cites·6 claims
- 1077US7114166B2Disc cartridgeTDK CORP·Filed 2004·Granted Sep 26, 2006·11 cites·5 claims
- 1177US6334268B1Disk storage caseTDK CORP·Filed 2000·Granted Jan 1, 2002·12 cites·6 claims
- 1276US5034844ADisc cartridge with bent shutter plate to facilitate mounting of shutter plate on disc casingTDK CORP·Filed 1988·Granted Jul 23, 1991·20 cites·14 claims
- 1374US5260931ADisk cartridge with improved transmission shutter mechanismTDK CORP·Filed 1991·Granted Nov 9, 1993·22 cites·12 claims
- 1472US6283285B1Disk storage case and disk trayTDK CORP·Filed 2000·Granted Sep 4, 2001·9 cites·9 claims
- 1571US5121277ADisc cartridge with shutter and assembling and mounting mechanism thereforTDK CORP·Filed 1989·Granted Jun 9, 1992·17 cites·11 claims
- 1670US4979065ADisc cartridge having a liner and an elastic member for maintaining the liner in contact with a discTDK CORP·Filed 1988·Granted Dec 18, 1990·17 cites·9 claims
- 1769US7610595B2Clamping plate, cartridge case, information medium, mold, and method of manufacturing clamping plateTDK CORP·Filed 2006·Granted Oct 27, 2009·1 cites·7 claims
- 1868US5325256ACartridge having a write protector integrally formed with the casingTDK CORP·Filed 1992·Granted Jun 28, 1994·17 cites·11 claims
- 1968US5247416ADisk cartridge with friction-reducing sheetTDK CORP·Filed 1991·Granted Sep 21, 1993·16 cites·12 claims
- 2067US5081556AProtective casing for a magnetic diskTDK CORP·Filed 1990·Granted Jan 14, 1992·17 cites·8 claims
- 2167US5077625ACartridge having casing with shutter movable to receive discs thereinTDK CORP·Filed 1991·Granted Dec 31, 1991·17 cites·6 claims
- 2266US4991048ADisc cartridge casing with shutter slidably fitted therein to uncover a pick-inserting holeTDK CORP·Filed 1988·Granted Feb 5, 1991·11 cites·12 claims
- 2365US5072326ADisc cartridge and shutter assembly thereofTDK CORP·Filed 1990·Granted Dec 10, 1991·12 cites·1 claims
- 2465US4747007ASpring means for biasing a tape against a head inserted in a cassetteTDK CORP·Filed 1985·Granted May 24, 1988·14 cites·5 claims
- 2564US4671469ATape cassetteTDK CORP·Filed 1985·Granted Jun 9, 1987·13 cites·14 claims
- 2661US6542459B2Cartridge and manufacturing method thereofTDK CORP·Filed 1999·Granted Apr 1, 2003·14 cites·8 claims
- 2761US6094326ADisc cartridge with improved shutter mechanismTDK CORP·Filed 1997·Granted Jul 25, 2000·15 cites·30 claims
- 2860US6243355B1Disk cartridge with error insertion prevention mechanismTDK CORP·Filed 1999·Granted Jun 5, 2001·14 cites·4 claims
- 2960US5010435AHub for a disk type recording mediumTDK CORP·Filed 1988·Granted Apr 23, 1991·9 cites·1 claims
- 3059US5326608ADisc cartridgeTDK CORP·Filed 1992·Granted Jul 5, 1994·11 cites·6 claims
- 3158US6418113B1Disk cartridgeTDK CORP·Filed 1999·Granted Jul 9, 2002·13 cites·8 claims
- 3255US5954198ACartridge receiving casingTDK CORP·Filed 1998·Granted Sep 21, 1999·12 cites·21 claims
- 3355US5057960AHub for a disk type recording mediumTDK CORP·Filed 1990·Granted Oct 15, 1991·8 cites·6 claims
- 3453US6095327AStorage case for cartridge, manufacturing method thereof and cartridgeTDK CORP·Filed 1999·Granted Aug 1, 2000·10 cites·15 claims
- 3553US5966360ACleaning disc cartridgeTDK CORP·Filed 1997·Granted Oct 12, 1999·10 cites·15 claims
- 3653US5288543AProtective film on sliding members and method of forming sameTDK CORP·Filed 1991·Granted Feb 22, 1994·9 cites·1 claims
- 3752US5881871ACartridge receiving casingTDK CORP·Filed 1998·Granted Mar 16, 1999·11 cites·21 claims
- 3852US5036421ADisc cartridge having an improved shutter configurationTDK CORP·Filed 1989·Granted Jul 30, 1991·8 cites·10 claims
- 3951US6307831B1Disc cartridge having reference holesTDK CORP·Filed 1998·Granted Oct 23, 2001·9 cites·9 claims
- 4050US5205507AHub for tape cassetteTDK CORP·Filed 1991·Granted Apr 27, 1993·7 cites·6 claims
- 4149US5498456ADisc cartridgeTDK CORP·Filed 1994·Granted Mar 12, 1996·7 cites·19 claims
- 4249US4847717AHandling of a tape cassetteTDK CORP·Filed 1987·Granted Jul 11, 1989·7 cites·10 claims
- 4348US6370108B1Disc cartridgeTDK CORP·Filed 1998·Granted Apr 9, 2002·8 cites·12 claims
- 4448US6125011ADisc cartridge with particular cover configurationTDK CORP·Filed 1997·Granted Sep 26, 2000·8 cites·18 claims
- 4548US2006260903A1Clamping plateTDK CORP·Filed 2006·Application pending·0 cites
- 4648US2007025019A1Cartridge case and disc cartridgeTDK CORP·Filed 2006·Application pending·0 cites
- 4747US5860611ATape cassette and recording and reproducing apparatusTDK CORP·Filed 1996·Granted Jan 19, 1999·8 cites·34 claims
- 4847US2006282846A1Cartridge case and information mediumTDK CORP·Filed 2006·Application pending·0 cites
- 4946US6266319B1Disc cartridge integrally formed of transparent and non-transparent resin, and molding die thereforTDK CORP·Filed 1996·Granted Jul 24, 2001·7 cites·36 claims
- 5043US4905113AMagnetic tape cassette having a slider mounted on the lower casing memberTDK CORP·Filed 1988·Granted Feb 27, 1990·5 cites·4 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →