Inventor · disambiguated record
Takahiro Hirai
Also filed as: HIRAI TAKAHIRO
62 granted patents·13 pending applications·839 citations·filing 1979–2024
99Inventor score
Top patents by PatentIndex Score
75 records- 0195US7532503B2Magnetic recording element, magnetic recording apparatus and recording method of informationTOSHIBA KK·Filed 2005·Granted May 12, 2009·44 cites·20 claims
- 0292US7819203B2Striking toolHITACHI KOKI KK·Filed 2005·Granted Oct 26, 2010·31 cites·17 claims
- 0392US4891399AThermoplastic resin-based molding compositionCALP CORP·Filed 1987·Granted Jan 2, 1990·110 cites·25 claims
- 0491US9190499B2Nonvolatile semiconductor memory device, capacitance element, and method for manufacturing nonvolatile semiconductor memory deviceTOSHIBA KK·Filed 2013·Granted Nov 17, 2015·13 cites·10 claims
- 0591US7733684B2Data read/write deviceTOSHIBA KK·Filed 2006·Granted Jun 8, 2010·22 cites·9 claims
- 0691US7558103B2Magnetic switching element and signal processing device using the sameTOSHIBA KK·Filed 2007·Granted Jul 7, 2009·23 cites·33 claims
- 0790US2025038007A1Nonvolatile semiconductor memory device and method of manufacturing the sameKIOXIA CORP·Filed 2024·Application pending·0 cites
- 0889US5892519AInformation display device for displaying variation of environmentSONY CORP·Filed 1996·Granted Apr 6, 1999·120 cites·7 claims
- 0988US8014189B2Information recording/reproducing deviceTOSHIBA KK·Filed 2009·Granted Sep 6, 2011·7 cites·15 claims
- 1087US12142486B2Nonvolatile semiconductor memory device and method of manufacturing the sameKIOXIA CORP·Filed 2023·Granted Nov 12, 2024·0 cites·13 claims
- 1187US8207518B2Information recording and reproducing deviceKUBO KOHICHI·Filed 2010·Granted Jun 26, 2012·8 cites·20 claims
- 1285US8089796B2Information recording and reproducing deviceTSUKAMOTO TAKAYUKI·Filed 2010·Granted Jan 3, 2012·10 cites·20 claims
- 1385US7852739B2Positioning system mounted on probe memory device and positioning method thereofTOSHIBA KK·Filed 2008·Granted Dec 14, 2010·6 cites·12 claims
- 1485US4234469AFlame retarding polyolefin resin blend compositionIDEMITSU KOSAN CO·Filed 1979·Granted Nov 18, 1980·36 cites·3 claims
- 1584US7961586B2Information recording/reproducing deviceTOSHIBA KK·Filed 2007·Granted Jun 14, 2011·5 cites·19 claims
- 1684US5716462AMagnetic material and bonded magnetTOSHIBA KK·Filed 1996·Granted Feb 10, 1998·44 cites·20 claims
- 1783US10994393B2Rotary impact toolKOKI HOLDINGS CO LTD·Filed 2017·Granted May 4, 2021·3 cites·9 claims
- 1883US7733145B2Nonvolatile latch circuit and nonvolatile flip-flop circuitTOSHIBA KK·Filed 2007·Granted Jun 8, 2010·15 cites·9 claims
- 1980US7266034B2Data recording deviceTOSHIBA KK·Filed 2006·Granted Sep 4, 2007·12 cites·22 claims
- 2079US8188455B2Information recording/reproducing deviceTSUKAMOTO TAKAYUKI·Filed 2009·Granted May 29, 2012·6 cites·16 claims
- 2177US8701621B2Four-cycle engine, bush cutter and engine-driven tool having sameTAKEDA TAKESHI·Filed 2010·Granted Apr 22, 2014·4 cites·6 claims
- 2276US8269205B2Information recording and reproducing deviceKUBO KOHICHI·Filed 2010·Granted Sep 18, 2012·4 cites·19 claims
- 2376US7995382B2Information recording and reproducing apparatusTOSHIBA KK·Filed 2009·Granted Aug 9, 2011·9 cites·22 claims
- 2476USD591916SEngine blowerHITACHI KOKI KK·Filed 2008·Granted May 5, 2009·21 cites·1 claims
- 2576US5549766AMagnetic materialTOSHIBA KK·Filed 1994·Granted Aug 27, 1996·26 cites·12 claims
- 2675US5658396AMagnetic materialTOSHIBA KK·Filed 1995·Granted Aug 19, 1997·25 cites·20 claims
- 2775US2021202263A1Nonvolatile semiconductor memory device and method of manufacturing the sameTOSHIBA MEMORY CORP·Filed 2021·Application pending·0 cites
- 2874US8581424B2Information recording/reproducing deviceHIRAI TAKAHIRO·Filed 2011·Granted Nov 12, 2013·5 cites·16 claims
- 2974US8018762B2Information recording and reproducing apparatusTOSHIBA KK·Filed 2009·Granted Sep 13, 2011·4 cites·14 claims
- 3074US5480495AMagnetic materialTOSHIBA KK·Filed 1993·Granted Jan 2, 1996·25 cites·24 claims
- 3173US10957556B2Nonvolatile semiconductor memory device and method of manufacturing the sameTOSHIBA MEMORY CORP·Filed 2020·Granted Mar 23, 2021·0 cites·34 claims
- 3273US8237145B2Nonvolatile memory device with recording layer having two portions of different nitrogen amountsKAMATA CHIKAYOSHI·Filed 2010·Granted Aug 7, 2012·7 cites·12 claims
- 3373US5968290APermanent magnet material and bonded magnetTOSHIBA KK·Filed 1998·Granted Oct 19, 1999·25 cites·22 claims
- 3472US6406559B2Magnetic material and manufacturing method thereof, and bonded magnet using the sameTOSHIBA KK·Filed 2001·Granted Jun 18, 2002·13 cites·16 claims
- 3569US6652193B2Swaying reduction apparatus and floating body therewithMITSUBISHI HEAVY IND LTD·Filed 2001·Granted Nov 25, 2003·11 cites·5 claims
- 3668US7838877B2Information recording and reproducing apparatusTOSHIBA KK·Filed 2008·Granted Nov 23, 2010·2 cites·20 claims
- 3767US5482573AMagnetic materialTOSHIBA KK·Filed 1992·Granted Jan 9, 1996·20 cites·27 claims
- 3866US10615049B2Nonvolatile semiconductor memory device and method of manufacturing the sameTOSHIBA MEMORY CORP·Filed 2018·Granted Apr 7, 2020·0 cites·12 claims
- 3966US6622158B1Character information copying system, recording apparatus, and recording methodSONY CORP·Filed 1999·Granted Sep 16, 2003·16 cites·16 claims
- 4065US6290782B1Magnetic material and manufacturing method thereof, and bonded magnet using the sameTOSHIBA KK·Filed 1999·Granted Sep 18, 2001·16 cites·13 claims
- 4164US8431920B2Information recording and reproducing device for high-recording densityKAMATA CHIKAYOSHI·Filed 2010·Granted Apr 30, 2013·3 cites·10 claims
- 4264US5456769AMagnetic materialTOSHIBA KK·Filed 1994·Granted Oct 10, 1995·15 cites·19 claims
- 4359US5601662AMethod of introducing magnetic anisotropy into magnetic materialTOSHIBA KK·Filed 1990·Granted Feb 11, 1997·15 cites·17 claims
- 4459US2023317364A1Coil deviceTDK CORP·Filed 2023·Application pending·0 cites
- 4558US10192753B2Nonvolatile semiconductor memory device and method of manufacturing the sameTOSHIBA MEMORY CORP·Filed 2015·Granted Jan 29, 2019·0 cites·17 claims
- 4658US9644618B2Portable working machineHITACHI KOKI KK·Filed 2013·Granted May 9, 2017·1 cites·7 claims
- 4758US7273675B2Aqueus electrolytic solution primary batteryTOSHIBA KK·Filed 2003·Granted Sep 25, 2007·3 cites·19 claims
- 4858US6416593B2Magnetic material and manufacturing method thereof, and bonded magnet using the sameTOSHIBA KK·Filed 2001·Granted Jul 9, 2002·5 cites·7 claims
- 4957US7606096B2Semiconductor integrated circuit deviceTOSHIBA KK·Filed 2007·Granted Oct 20, 2009·3 cites·12 claims
- 5056US11418094B2Electric toolKOKI HOLDINGS CO LTD·Filed 2018·Granted Aug 16, 2022·0 cites·11 claims
Showing the top 50 of 75 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →