Inventor · disambiguated record
Keisuke Iwasaki
Also filed as: IWASAKI KEISUKE
72 granted patents·16 pending applications·1,235 citations·filing 1986–2022
99Inventor score
Top patents by PatentIndex Score
88 records- 0189US6788292B1Display deviceSHARP KK·Filed 1999·Granted Sep 7, 2004·157 cites·5 claims
- 0288US6972752B2Display deviceSHARP KK·Filed 2004·Granted Dec 6, 2005·50 cites·2 claims
- 0388US5469274AImage processing apparatus for combining differently corrected imagesSHARP KK·Filed 1993·Granted Nov 21, 1995·91 cites·7 claims
- 0486US6907407B1Copyright management apparatusSHARP KK·Filed 1999·Granted Jun 14, 2005·42 cites·17 claims
- 0586US6350505B2High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording mediumTODA KOGYO CORP·Filed 2001·Granted Feb 26, 2002·16 cites·16 claims
- 0686US5949390AThree-dimensional display apparatus with a wide viewing angle and increased resolutionSHARP KK·Filed 1996·Granted Sep 7, 1999·93 cites·16 claims
- 0784US7022752B2Composite particles, process for producing the same, and pigment, paint and resin composition using the sameTODA KOGYO CORP·Filed 2001·Granted Apr 4, 2006·28 cites·58 claims
- 0882US7283129B1Display control device and reproduction display device for electronic booksSHARP KK·Filed 2000·Granted Oct 16, 2007·31 cites·11 claims
- 0981US4992781AImage synthesizerSHARP KK·Filed 1988·Granted Feb 12, 1991·67 cites·1 claims
- 1080US7085379B1Image compression device and image decompressing device, and computer-readable recorded medium on which program for allowing computer to execute image compressing method and image decompressing methodSHARP KK·Filed 2000·Granted Aug 1, 2006·22 cites·14 claims
- 1180US6800684B2Composite particles, and tread rubber composition, paint and resin composition using the sameTODA KOGYO CORP·Filed 2002·Granted Oct 5, 2004·24 cites·22 claims
- 1280US6544647B1Non-magnetic composite particles, process for producing the same and magnetic recording medium using the sameTODA KOGYO CORP·Filed 2000·Granted Apr 8, 2003·21 cites·13 claims
- 1380US6441811B1Display control device and reproduction display device for electronic booksSHARP KK·Filed 1998·Granted Aug 27, 2002·82 cites·9 claims
- 1479US7246228B2Communication system, terminal device, reproduction program, storage medium storing the reproduction program, server machine, server program, and storage medium storing the server programSHARP KK·Filed 2001·Granted Jul 17, 2007·18 cites·10 claims
- 1578US7676401B2Data distribution system and data selling apparatus therefor, data retrieving apparatus, duplicated data detecting system, and data reproduction apparatusSHARP KK·Filed 2005·Granted Mar 9, 2010·8 cites·4 claims
- 1678US5750250AHematite particles and magnetic recording medium having a non-magnetic under-coat layer containing hematite (Fe2 O3) particles.TODA KOGYO CORP·Filed 1996·Granted May 12, 1998·29 cites·20 claims
- 1777US8159322B2Laminated coilIWASAKI KEISUKE·Filed 2011·Granted Apr 17, 2012·4 cites·14 claims
- 1877US7283683B1Image processing device and image processing methodSHARP KK·Filed 1998·Granted Oct 16, 2007·57 cites·28 claims
- 1977US6623557B2Colorant for ink-jet printing ink, ink-jet printing ink, aqueous pigment dispersion containing the colorant, and organic and inorganic composite particlesTODA KOGYO CORP·Filed 2002·Granted Sep 23, 2003·19 cites·22 claims
- 2077US6596071B2Organic and inorganic composite pigments, and paint and resin composition using the sameTODA KOGYO CORP·Filed 2002·Granted Jul 22, 2003·21 cites·11 claims
- 2177US6072627AStereoscopic image capture deviceSHARP KK·Filed 1996·Granted Jun 6, 2000·14 cites·9 claims
- 2277US5124207AMagnetic iron oxide particlesTODA KOGYO CORP·Filed 1990·Granted Jun 23, 1992·28 cites·8 claims
- 2375US7016420B1Image encoding deviceSHARP KK·Filed 2000·Granted Mar 21, 2006·13 cites·23 claims
- 2474US6042937ATitanium oxide particles, substrate for magnetic recording medium and magnetic recording medium using the sameTODA KOGYO CORP·Filed 1997·Granted Mar 28, 2000·21 cites·17 claims
- 2573US6863966B1Black magnetic acicular composite particles for magnetic recording medium and magnetic recording medium using the sameTODA KOGYO CORP·Filed 2000·Granted Mar 8, 2005·9 cites·27 claims
- 2670US6432377B1Particles for non-magnetic undercoat layer of magnetic recording medium, method thereof and magnetic recording mediumTODA KOGYO CORP·Filed 2001·Granted Aug 13, 2002·6 cites·4 claims
- 2769US7094814B2Coloring composition for color filter containing colorant and color filter using the sameTODA KOGYO CORP·Filed 2002·Granted Aug 22, 2006·8 cites·13 claims
- 2869US5604015ANon-magnetic undercoat layer for magnetic recording medium, magnetic recording medium and non-magnetic particlesTODA KOGYO CORP·Filed 1994·Granted Feb 18, 1997·15 cites·12 claims
- 2968US7031531B1Image encoding device and method therefor, image decoding apparatus and method therefor, and computer-readable recorded medium on which image encoding program and image decoding program are recordedSHARP KK·Filed 2000·Granted Apr 18, 2006·9 cites·36 claims
- 3068US6666914B2Black colorant for ink-jet printing ink, ink-jet printing ink, and aqueous pigment dispersion containing the black colorantTODA KOGYO CORP·Filed 2002·Granted Dec 23, 2003·11 cites·17 claims
- 3167US7830966B2Image encoding deviceSHARP KK·Filed 2005·Granted Nov 9, 2010·2 cites·10 claims
- 3267US6737211B2Color tonerTODA KOGYO CORP·Filed 2002·Granted May 18, 2004·9 cites·12 claims
- 3367US6352776B1Magnetic recording medium, non-magnetic acicular black iron-based composite particles and process for producing the particlesTODA KOGYO CORP·Filed 2000·Granted Mar 5, 2002·11 cites·38 claims
- 3466US6248437B1Magnetic recording medium containing non-magnetic hematite particles as an undercoat layerTODA KOGYO CORP·Filed 2000·Granted Jun 19, 2001·5 cites·14 claims
- 3565US6287668B1Magnetic recording medium and substrate thereforTODA KOGYO CORP·Filed 2000·Granted Sep 11, 2001·10 cites·34 claims
- 3664US5587232ANon-magnetic particles for non-magnetic undercoating layer of magnetic recording medium, non-magnetic undercoating layer containing the same, and magnetic recording medium having the undercoating layerTODA KOGYO CORP·Filed 1993·Granted Dec 24, 1996·25 cites·14 claims
- 3762US6475687B2Magnetic composite particles for black magnetic toner and black magnetic toner using the sameTODA KOGYO CORP·Filed 2001·Granted Nov 5, 2002·8 cites·28 claims
- 3861US6294242B1Magnetic recording mediumTODA KOGYO CORP·Filed 2000·Granted Sep 25, 2001·7 cites·39 claims
- 3961US4878178AImage processing deviceSHARP KK·Filed 1986·Granted Oct 31, 1989·31 cites·21 claims
- 4060US8878817B2Area sensor and liquid crystal display device with area sensorNOMA MIKIHIRO·Filed 2009·Granted Nov 4, 2014·3 cites·19 claims
- 4159US8421576B2Electronic component and manufacturing method of the sameIWASAKI KEISUKE·Filed 2011·Granted Apr 16, 2013·1 cites·13 claims
- 4258US12022841B2Film for preserving edible meatTOYO ALUMINIUM KK·Filed 2019·Granted Jul 2, 2024·0 cites·10 claims
- 4358US10224060B2Interactive home-appliance system, server device, interactive home appliance, method for allowing home-appliance system to interact, and nonvolatile computer-readable data recording medium encoded with program for allowing computer to implement the methodSHARP KK·Filed 2015·Granted Mar 5, 2019·1 cites·14 claims
- 4458US6531211B1Black plate-shaped ferrite composite particles with magnet oplumbite structure and magnetic recording medium using the sameTODA KOGYO CORP·Filed 2000·Granted Mar 11, 2003·3 cites·30 claims
- 4557US6767611B2Black magnetic acicular containing composite particles magnetic recording mediumTODA KOGYO CORP·Filed 2002·Granted Jul 27, 2004·6 cites·20 claims
- 4655US2003004807A1Apparatus and method for providing information with advertisementFiled 2001·Application pending·0 cites
- 4754US6803104B2Magnetic recording medium, non-magnetic acicular black iron-based composite particles and process for producing the particlesTODA KOGYO CORP·Filed 2002·Granted Oct 12, 2004·3 cites·21 claims
- 4854US2006221097A1Display data generation device, display automatic operation data generation device, display data generation method, display automatic operation data generation method, display data generation program, display automatic operation data generation program, and computer-readable recording medium containing these programsSHARP KK·Filed 2006·Application pending·0 cites
- 4953US6824867B2Non-magnetic composite particles, process for producing the same and magnetic recording medium using the sameTODA KOGYO CORP·Filed 2003·Granted Nov 30, 2004·2 cites·6 claims
- 5053US2009017384A1Process for producing composite cathode active material for non-aqueous electrolyte secondary cellTODA KOGYO CORP·Filed 2008·Application pending·0 cites
Showing the top 50 of 88 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Keisuke Iwasaki files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →