Inventor · disambiguated record
Takehiro Toyooka
Also filed as: TOYOOKA TAKEHIRO
31 granted patents·1,094 citations·filing 1989–2012
98Inventor score
Top patents by PatentIndex Score
31 records- 0197US6750941B2Complex diffraction deviceNIPPON MITSUBISHI OIL CORP·Filed 2002·Granted Jun 15, 2004·181 cites·8 claims
- 0294US5510913AHead-up display system where polarized light from a display impinges on a glass plate containing twisted nematic liquid crystal at the plate's Brewsters angleCENTRAL GLASS CO LTD·Filed 1993·Granted Apr 23, 1996·146 cites·10 claims
- 0392US5250214ALiquid crystal color display device provided with a color filter film and an optical phase plate comprising liquid crystal polymerRICOH KK·Filed 1991·Granted Oct 5, 1993·88 cites·13 claims
- 0490US6628369B2Circular polarizer and liquid crystal displayNIPPON OIL CORP·Filed 2002·Granted Sep 30, 2003·44 cites·6 claims
- 0586US5132147AMethod for orienting a liquid crystalline polymerNIPPON OIL CO LTD·Filed 1990·Granted Jul 21, 1992·76 cites·7 claims
- 0683US6977700B2Circular polarization plate and liquid crystal display deviceNIPPON OIL CORP·Filed 2001·Granted Dec 20, 2005·26 cites·12 claims
- 0783US5883685ACompensating film for a liquid crystal display and an OCB mode liquid crystal display incorporating the compensating filmNIPPON OIL CO LTD·Filed 1996·Granted Mar 16, 1999·61 cites·6 claims
- 0881US5472635APhase plate and liquid crystal display using sameNIPPON OIL CO LTD·Filed 1994·Granted Dec 5, 1995·39 cites·2 claims
- 0979US5193020AMethod for producing compensator for liquid crystal displayNIPPON OIL CO LTD·Filed 1991·Granted Mar 9, 1993·51 cites·5 claims
- 1078US6124913ACompensating film for a liquid crystal display and an OCB mode liquid crystal display incorporating the compensating filmNIPPON OIL CO LTD·Filed 1998·Granted Sep 26, 2000·35 cites·12 claims
- 1178US5526150ALiquid crystal polymer viewing angle compensator for liquid crystal display having its largest refractive index in the thickness directionNIPPON OIL CO LTD·Filed 1994·Granted Jun 11, 1996·33 cites·16 claims
- 1276US7701537B2Optical diodeTOKYO INST TECH·Filed 2007·Granted Apr 20, 2010·5 cites·4 claims
- 1373US5064697ASubstrate with a liquid crystal polymeric thin film and method for manufacturing the sameRICOH KK·Filed 1990·Granted Nov 12, 1991·39 cites·10 claims
- 1472US5855971ALiquid crystalline optical film, compensating film for liquid crystal display comprising the liquid crystalline optical film, and liquid crystal display having the compensating filmNIPPON OIL CO LTD·Filed 1996·Granted Jan 5, 1999·42 cites·9 claims
- 1568US5326496ACompensator for liquid crystal displayNIPPON OIL CO LTD·Filed 1993·Granted Jul 5, 1994·22 cites·11 claims
- 1666US9139774B2Diacetylene derivative and liquid crystalline polymer having diacetylene structureARAKAWA YUKI·Filed 2012·Granted Sep 22, 2015·2 cites·14 claims
- 1764US5206752AOptical rotator formed of a twisted nematic liquid crystal polyster including an ortho-substituted aromatic unitNIPPON OIL CO LTD·Filed 1991·Granted Apr 27, 1993·26 cites·5 claims
- 1862US5456867AViewing angle compensator for liquid crystal displayNIPPON OIL CO LTD·Filed 1994·Granted Oct 10, 1995·25 cites·5 claims
- 1962US5359443AProcess for producing heat-resistant optical element by heating liquid crystal polymer at polymerization temperature during or after orientation treatmentNIPPON OIL CO LTD·Filed 1992·Granted Oct 25, 1994·24 cites·9 claims
- 2057US6034754ALiquid crystal display device with compensating film(s)NIPPON OIL CO LTD·Filed 1998·Granted Mar 7, 2000·23 cites·3 claims
- 2154US5943110ALiquid crystal display device provided with a liquid crystalline compensating film having a positive uniaxiality in a nematic hybrid orientationNIPPON OIL CO LTD·Filed 1998·Granted Aug 24, 1999·21 cites·5 claims
- 2253US5147682AMethod for orienting a liquid crystal polymerRICOH KK·Filed 1990·Granted Sep 15, 1992·17 cites·13 claims
- 2352US5288426ANonlinear optical materialsNIPPON OIL CO LTD·Filed 1990·Granted Feb 22, 1994·10 cites·16 claims
- 2451US5491001AMethod for producing viewing angle compensator for liquid crystal displayNIPPON OIL CO LTD·Filed 1994·Granted Feb 13, 1996·16 cites·6 claims
- 2550US5496498ACompensator for liquid crystal displayNIPPON OIL CO LTD·Filed 1994·Granted Mar 5, 1996·9 cites·13 claims
- 2650US5391688ALiquid crystalline polyestersNIPPON OIL CO LTD·Filed 1994·Granted Feb 21, 1995·7 cites·5 claims
- 2748US9074308B2Battery separator comprising a polyolefin nanofilament porous sheetSUZUKI AKIHIRO·Filed 2011·Granted Jul 7, 2015·0 cites·7 claims
- 2848US7826510B2Laser oscillation elementsNIPPON OIL CORP·Filed 2004·Granted Nov 2, 2010·2 cites·16 claims
- 2948US5260109AMethod for polarizing lightNIPPON OIL CO LTD·Filed 1990·Granted Nov 9, 1993·14 cites·5 claims
- 3044US5097016ANonlinear optical materials of polypeptidesNIPPON OIL CO LTD·Filed 1989·Granted Mar 17, 1992·9 cites·7 claims
- 3132US5230825AChiral smectic c liquid crystalline polyesterNIPPON OIL CO LTD·Filed 1989·Granted Jul 27, 1993·1 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →