Inventor · disambiguated record
Hitoshi Ishikawa
Also filed as: ISHIKAWA HITOSHI
116 granted patents·23 pending applications·1,677 citations·filing 1976–2023
99Inventor score
Top patents by PatentIndex Score
139 records- 0194US6476550B1Organic Electroluminescent device with a defraction grading and luminescent layerNEC CORP·Filed 1999·Granted Nov 5, 2002·120 cites·16 claims
- 0291US6747287B1Organic thin film transistorNEC CORP·Filed 2002·Granted Jun 8, 2004·74 cites·21 claims
- 0391US6175747B1Base transceiver station and subscriber unit in wireless local loop system using personal handy-phone system and method for operating sameFUJITSU LTD·Filed 1997·Granted Jan 16, 2001·183 cites·39 claims
- 0490US9847180B2Nonaqueous electrolyte solution, and lithium ion secondary battery having the sameNEC ENERGY DEVICES LTD·Filed 2015·Granted Dec 19, 2017·3 cites·5 claims
- 0589US9196926B2Gel electrolyte for lithium ion secondary battery, and lithium ion secondary batteryKANEKO SHINAKO·Filed 2011·Granted Nov 24, 2015·7 cites·11 claims
- 0689US5696321AThermal-type air flow measuring instrument with fluid-direction judging capabilityHITACHI LTD·Filed 1995·Granted Dec 9, 1997·68 cites·23 claims
- 0788US6725715B2Characteristics adjusting apparatus of physical quantity sensing device and a thermal type air flow measuring instrument, and associated adjusting methodHITACHI LTD·Filed 2003·Granted Apr 27, 2004·25 cites·12 claims
- 0887US6070462ACharacteristics adjusting means of physical quantity sensing device and thermal type air flow measuring instrumentHITACHI LTD·Filed 1997·Granted Jun 6, 2000·42 cites·22 claims
- 0985US12343835B2Cooling medium spray deviceNT TOOL KK·Filed 2021·Granted Jul 1, 2025·1 cites·20 claims
- 1084US12158169B2Clamping deviceNT TOOL KK·Filed 2022·Granted Dec 3, 2024·1 cites·20 claims
- 1184US7597058B2Apparatus for adjusting timing of needle and looptaker of sewing machineAISIN SEIKI·Filed 2008·Granted Oct 6, 2009·10 cites·20 claims
- 1284US5405220AOil feeding collet chuck and its colletNT TOOL KK·Filed 1993·Granted Apr 11, 1995·48 cites·10 claims
- 1383US6900457B2Light emitting device and manufacturing method thereof and display used this light emitting deviceSAMSUNG SDI CO LTD·Filed 2002·Granted May 31, 2005·30 cites·13 claims
- 1483US4754337ACopy machine for a motor vehicleAISIN SEIKI·Filed 1986·Granted Jun 28, 1988·51 cites·4 claims
- 1582US9312073B2Nonaqueous electrolyte solution, and lithium ion secondary battery having the sameKANEKO SHINAKO·Filed 2011·Granted Apr 12, 2016·3 cites·12 claims
- 1682US6582837B1Organic electroluminescence deviceNEC CORP·Filed 1998·Granted Jun 24, 2003·85 cites·11 claims
- 1782US6557445B1Tool holder and a runout correcting tool for a tool holderNT TOOL KABUSHIKI KAISHA·Filed 2000·Granted May 6, 2003·30 cites·11 claims
- 1881US11154937B2Tool holderNT TOOL KK·Filed 2018·Granted Oct 26, 2021·2 cites·20 claims
- 1981US9050538B2Collision detection and motion simulation in game virtual spaceSUGIYAMA HAJIME·Filed 2012·Granted Jun 9, 2015·9 cites·7 claims
- 2081US8377596B2Nonaqueous-type electrolyte solution, and device comprising the sameNEC ENERGY DEVICES LTD·Filed 2010·Granted Feb 19, 2013·4 cites·4 claims
- 2181US6326757B1Rotational pulse generating circuit for commutator DC motorsAISIN SEIKI·Filed 2000·Granted Dec 4, 2001·23 cites·4 claims
- 2279US7619357B2Electroluminescent display deviceSAMSUNG MOBILE DISPLAY CO LTD·Filed 2004·Granted Nov 17, 2009·28 cites·11 claims
- 2379US6782744B1Gas flow rate measuring apparatusHITACHI LTD·Filed 2001·Granted Aug 31, 2004·22 cites·12 claims
- 2479US6734624B2Organic electro-luminescence device and method for fabricating sameNEC CORP·Filed 2000·Granted May 11, 2004·23 cites·20 claims
- 2579US6510735B2Characteristics adjusting means of physical quantity sensing device and thermal type air flow measuring instrumentHITACHI LTD·Filed 2001·Granted Jan 28, 2003·15 cites·27 claims
- 2677US10824775B2Simulation method and device for determining collision between objectsSONY INTERACTIVE ENTERTAINMENT INC·Filed 2014·Granted Nov 3, 2020·4 cites·7 claims
- 2776US7830286B2AD converter and data processing unitDENSO CORP·Filed 2009·Granted Nov 9, 2010·11 cites·5 claims
- 2875US9899703B2Gel electrolyte and polymer secondary battery using sameNEC CORP·Filed 2014·Granted Feb 20, 2018·1 cites·17 claims
- 2975US6921627B2Organic electroluminescent device with self-aligned insulating fillers and method for manufacturing the sameSAMSUNG SDI CO LTD·Filed 2003·Granted Jul 26, 2005·15 cites·14 claims
- 3075US6771018B2Light-emitting device and display device employing electroluminescence with no light leakage and improved light extraction efficiencySAMSUNG SDI CO LTD·Filed 2002·Granted Aug 3, 2004·21 cites·62 claims
- 3174US11495800B2Electrode for power storage device and method for producing sameNEC CORP·Filed 2018·Granted Nov 8, 2022·1 cites·6 claims
- 3274US6396208B1Organic electroluminescent device and its manufacturing processNEC CORP·Filed 1999·Granted May 28, 2002·108 cites·18 claims
- 3374US5586001ASolid electrolyte capacitor using polyaniline doped with disulfonic acidNEC CORP·Filed 1995·Granted Dec 17, 1996·47 cites·16 claims
- 3474US4429650AExtruded sewing machine frameAISIN SEIKI·Filed 1981·Granted Feb 7, 1984·11 cites·4 claims
- 3573US10566661B2Electrolytic solution and secondary batteryNEC CORP·Filed 2015·Granted Feb 18, 2020·1 cites·14 claims
- 3672US10756337B2Lithium ion secondary batteryNEC CORP·Filed 2016·Granted Aug 25, 2020·1 cites·14 claims
- 3772US8016672B2Device and method to control game where characters are moved on mapSONY COMPUTER ENTERTAINMENT INC·Filed 2009·Granted Sep 13, 2011·2 cites·12 claims
- 3872US7094122B2Light emitting device and manufacturing method thereof and display used this light emitting deviceSAMSUNG SDI CO LTD·Filed 2004·Granted Aug 22, 2006·13 cites·1 claims
- 3971US7345419B2Substrate for optical element, organic electroluminescence element and organic electroluminescence display deviceSAMSUNG SDI CO LTD·Filed 2004·Granted Mar 18, 2008·11 cites·10 claims
- 4071US6559616B2Rotational pulse generating circuit for motorsAISIN SEIKI·Filed 2001·Granted May 6, 2003·31 cites·13 claims
- 4170US9620812B2Lithium ion batteryKANEKO SHINAKO·Filed 2012·Granted Apr 11, 2017·1 cites·9 claims
- 4270US6784452B2Organic thin film transistorNEC CORP·Filed 2002·Granted Aug 31, 2004·15 cites·18 claims
- 4370US6598472B2Characteristics adjusting apparatus of physical quantity sensing device and a thermal type air flow measuring instrument, and associated adjusting methodHITACHI LTD·Filed 2002·Granted Jul 29, 2003·10 cites·20 claims
- 4470US6456028B2Pulse generating circuit for driving DC motorAISIN SEIKI·Filed 2001·Granted Sep 24, 2002·18 cites·5 claims
- 4569US9953116B2Methods and apparatus for simulating positions of a plurality of objects in a virtual space, controlling method, program and information storage mediumSONY COMPUTER ENTERTAINMENT INC·Filed 2014·Granted Apr 24, 2018·2 cites·11 claims
- 4669US6753097B2Organic electroluminescent deviceSAMSUNG SDI CO LTD·Filed 2001·Granted Jun 22, 2004·8 cites·17 claims
- 4769US6468675B1Organic electroluminescent device having high luminance efficiencyNEC CORP·Filed 1999·Granted Oct 22, 2002·39 cites·9 claims
- 4869US6329083B1Organic electroluminescent device containing a benzoperylene compoundNEC CORP·Filed 1998·Granted Dec 11, 2001·20 cites·17 claims
- 4968US7598669B2Light-emitting diode, its manufacturing method, and display device using the sameSAMSUNG MOBILE DISPLAY CO LTD·Filed 2003·Granted Oct 6, 2009·12 cites·14 claims
- 5067US6878159B2StentOLYMPUS CORP·Filed 2002·Granted Apr 12, 2005·32 cites·41 claims
Showing the top 50 of 139 patent records by PatentIndex Score.
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