Inventor · disambiguated record
Masao Imai
Also filed as: IMAI MASAO
116 granted patents·18 pending applications·2,793 citations·filing 1982–2016
99Inventor score
Files withNEC CORP35MITSUI TOATSU CHEMICALS27MITSUI CHEMICALS INC16NATSUMEDA MASANAO10MIYASAKA DAIGO8
Top patents by PatentIndex Score
134 records- 0199US4775733AHigh-refractivity plastic lens resin formed by reacting at least one polyisocyanate with at least one polythiolMITSUI TOATSU CHEMICALS·Filed 1987·Granted Oct 4, 1988·186 cites·22 claims
- 0298US5191055AMercapto compound, a high refractive index resin and lens and a process for preparing themMITSUI TOATSU CHEMICALS·Filed 1992·Granted Mar 2, 1993·164 cites·9 claims
- 0398US5059673AResin for urethane lenses, lenses comprising the resin, and a process for preparation of the resin and the lensesMITSUI TOATSU CHEMICALS·Filed 1990·Granted Oct 22, 1991·111 cites·8 claims
- 0497US8587680B2Communication system, transmission device and reception deviceOKUMURA FUJIO·Filed 2009·Granted Nov 19, 2013·72 cites·14 claims
- 0597US5753730APlastic lenses having a high-refractive index, process for the preparation thereof and casting polymerization process for preparing sulfur-containing urethane resin lens and lens prepared therebyMITSUI TOATSU CHEMICALS·Filed 1991·Granted May 19, 1998·111 cites·26 claims
- 0697US5374668ACasting epoxy resin, polythiol and releasing agent to form lensMITSUI TOATSU CHEMICALS·Filed 1989·Granted Dec 20, 1994·102 cites·6 claims
- 0797US5087758AMercapto compound, a high refractive index resin and lens and a process for preparing themMITSUI TOATSU CHEMICALS·Filed 1989·Granted Feb 11, 1992·159 cites·19 claims
- 0896US8690335B2Display apparatus which displays the first image and the synthesized image with circular polarizations having different senses of rotation from each otherOKUMURA FUJIO·Filed 2009·Granted Apr 8, 2014·36 cites·16 claims
- 0996US8571217B2Display system, control apparatus, display method, and programISHII JUNICHIROU·Filed 2009·Granted Oct 29, 2013·85 cites·34 claims
- 1096US4542201AResin for high-refractivity lenses and lenses made of same resinMITSUI TOATSU CHEMICALS·Filed 1984·Granted Sep 17, 1985·89 cites·2 claims
- 1195US7534026B2Light source device, display device, and terminal deviceNEC CORP·Filed 2006·Granted May 19, 2009·21 cites·35 claims
- 1295US5283600ALCD projectorNEC CORP·Filed 1993·Granted Feb 1, 1994·151 cites·18 claims
- 1394US8619204B2Liquid crystal shutter and liquid crystal shutter eyeglassSAITOH GOROH·Filed 2010·Granted Dec 31, 2013·23 cites·8 claims
- 1494US7564443B2Liquid crystal display device and method for driving the sameNEC CORP·Filed 2008·Granted Jul 21, 2009·13 cites·43 claims
- 1594US4707430AOptical recording mediumOZAWA HIROSHI·Filed 1986·Granted Nov 17, 1987·73 cites·11 claims
- 1692US8870384B2Projection display device having light source device with color synthesis unitIMAI MASAO·Filed 2010·Granted Oct 28, 2014·13 cites·13 claims
- 1792US7690810B2Illumination device and display deviceNEC CORP·Filed 2006·Granted Apr 6, 2010·33 cites·28 claims
- 1892US6458908B1Sulfur-containing unsaturated carboxylate compound and its cured productsMITSUI CHEMICALS INC·Filed 2000·Granted Oct 1, 2002·33 cites·29 claims
- 1991US7042527B2Field sequential display of color video picture with color breakup preventionNEC CORP·Filed 2001·Granted May 9, 2006·46 cites·28 claims
- 2091US5908876AOptical resin composition comprising a thiourethane prepolymer and use thereofMITSUI CHEMICALS INC·Filed 1997·Granted Jun 1, 1999·53 cites·15 claims
- 2191US4751509ALight valve for use in a color display unit with a diffraction grating assembly included in the valveNEC CORP·Filed 1986·Granted Jun 14, 1988·94 cites·15 claims
- 2288US6024425AStorage apparatusDAIFUKU KK·Filed 1995·Granted Feb 15, 2000·47 cites·24 claims
- 2388US4980497AMonomer of carbonate ester having isopropenylphenyl groupMITSUI TOATSU CHEMICALS·Filed 1989·Granted Dec 25, 1990·22 cites·1 claims
- 2487US7362304B2Liquid crystal display device and method for driving the sameNEC CORP·Filed 2003·Granted Apr 22, 2008·27 cites·43 claims
- 2587US6794471B2Acrylic ester compound usage thereofMITSUI CHEMICALS INC·Filed 2001·Granted Sep 21, 2004·20 cites·16 claims
- 2687US5930037AStereoscopic display apparatus which prevents inverse stereoscopic visionNEC CORP·Filed 1997·Granted Jul 27, 1999·79 cites·28 claims
- 2787US5594088APlastic lenses having a high-refractive index, process for the preparation thereof and casting polymerization process for preparing sulfur containing urethane resin lens and lens prepared therebyMITSUI TOATSU CHEMICALS·Filed 1995·Granted Jan 14, 1997·47 cites·29 claims
- 2887US4750910AIndigo blue-colored bioabsorbable surgical fibers and production process thereofMITSUI TOATSU CHEMICALS·Filed 1987·Granted Jun 14, 1988·65 cites·2 claims
- 2986US8624822B2Light source apparatus, display apparatus, terminal apparatus, and control method thereofUEHARA SHIN-ICHI·Filed 2007·Granted Jan 7, 2014·7 cites·17 claims
- 3086US4707425AOptical recording method and media thereforMITSUI TOATSU CHEMICALS·Filed 1986·Granted Nov 17, 1987·62 cites·12 claims
- 3185US8848139B2Optical member, light source apparatus, display apparatus, and terminal apparatusNEC CORP·Filed 2013·Granted Sep 30, 2014·5 cites·11 claims
- 3285US5825541AStereoscopic display systemNEC CORP·Filed 1996·Granted Oct 20, 1998·85 cites·6 claims
- 3384US9028071B2Light emitting element, light source device, and projection display deviceNATSUMEDA MASANAO·Filed 2010·Granted May 12, 2015·6 cites·26 claims
- 3484US8223162B2Image processing apparatus, image processing method, program thereof, display device, and image display systemMIYASAKA DAIGO·Filed 2007·Granted Jul 17, 2012·6 cites·66 claims
- 3584US6597409B1Video projectorNEC VIEWTECHNOLOGY LTD·Filed 2000·Granted Jul 22, 2003·27 cites·21 claims
- 3683US9285599B2Three-dimensional video viewing system, display system, optical shutter, and three-dimensional video viewing methodIMAI MASAO·Filed 2010·Granted Mar 15, 2016·6 cites·31 claims
- 3783US9041041B2Optical device, optical element, and image display deviceNEC CORP·Filed 2012·Granted May 26, 2015·4 cites·20 claims
- 3883USRE44063ELight source device, display device, and terminal deviceUEHARA SHIN-ICHI·Filed 2011·Granted Mar 12, 2013·3 cites·49 claims
- 3983US5126425ALow-hygroscopic sulfur-containing urethane resin, coating material and adhesiveMITSUI TOATSU CHEMICALS·Filed 1990·Granted Jun 30, 1992·30 cites·7 claims
- 4082US6114485AThiol and sulfur-containing O-(meth)acrylate compounds and use thereofMITSUI CHEMICALS INC·Filed 1998·Granted Sep 5, 2000·15 cites·12 claims
- 4181US7985466B2Light control film, lighting device and display deviceNEC LCD TECHNOLOGIES LTD·Filed 2007·Granted Jul 26, 2011·4 cites·20 claims
- 4280US8780300B2Optical member, light source apparatus, display apparatus, and terminal apparatusNIIOKA SHINYA·Filed 2006·Granted Jul 15, 2014·8 cites·12 claims
- 4380US8339538B2Display device, terminal device, light source device, and optical member having a light-direction restricting element and a transparent/scattering state switching elementUEHARA SHIN-ICHI·Filed 2006·Granted Dec 25, 2012·9 cites·7 claims
- 4479US9110357B2Display element, display device, and projection display deviceNATSUMEDA MASANAO·Filed 2011·Granted Aug 18, 2015·5 cites·15 claims
- 4579US4791185AHigh-refractivity plastic lens resin formed from a polyisocyanate and a polythiolMITSUI TOATSU CHEMICALS·Filed 1987·Granted Dec 13, 1988·38 cites·14 claims
- 4678US8629955B2Moire reducing display device having directivity with terminal device, light source device, and optical memberNEC CORP·Filed 2012·Granted Jan 14, 2014·2 cites·22 claims
- 4778US5916987AThiol and Sulfur-containing O-(meth) acrylate compounds and use thereofMITSUI CHEMICALS INC·Filed 1997·Granted Jun 29, 1999·35 cites·12 claims
- 4878US5680064ALevel converter for CMOS 3V to from 5VFUJITSU LTD·Filed 1996·Granted Oct 21, 1997·39 cites·26 claims
- 4977US6835844B2Acrylic esters and use thereofMITSUI CHEMICALS INC·Filed 2002·Granted Dec 28, 2004·7 cites·20 claims
- 5077US5084538AHigh surface hardness transparent resin prepared from a compound having at least one isopropenyl phenyl groupMITSUI TOATSU CHEMICALS·Filed 1990·Granted Jan 28, 1992·27 cites·9 claims
Showing the top 50 of 134 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →