Inventor · disambiguated record
Takesuke Maruyama
Also filed as: MARUYAMA TAKESUKE
36 granted patents·1 pending application·646 citations·filing 1977–2008
98Inventor score
Top patents by PatentIndex Score
37 records- 0195US6290360B1Liquid crystal projector, and projection lens unit, optical unit and cooling system for the sameHITACHI LTD·Filed 1998·Granted Sep 18, 2001·59 cites·8 claims
- 0290US4246560ASelf-converging deflection yokeHITACHI LTD·Filed 1978·Granted Jan 20, 1981·31 cites·10 claims
- 0389US4920420AAutomatic focusing systemHITACHI LTD·Filed 1988·Granted Apr 24, 1990·72 cites·5 claims
- 0488US5491525AIllumination unit for liquid crystal projection display apparatus and liquid crystal display apparatus having it usedHITACHI LTD·Filed 1993·Granted Feb 13, 1996·91 cites·5 claims
- 0586US6783245B2Liquid crystal projector, and projection lens unit, optical unit and cooling system for the sameHITACHI LTD·Filed 2001·Granted Aug 31, 2004·17 cites·4 claims
- 0686US6678096B2Objective lens design method, lens, and optical system, optical head, and optical disc apparatus using the sameHITACHI MAXELL·Filed 2002·Granted Jan 13, 2004·22 cites·18 claims
- 0786US6411440B2Array lens, lighting optical system, optical unit and imaging apparatusHITACHI LTD·Filed 2000·Granted Jun 25, 2002·19 cites·16 claims
- 0884US7414796B2Objective lens design method, lens, and optical system, optical head, and optical disc apparatus using the sameHITACHI MAXELL·Filed 2004·Granted Aug 19, 2008·12 cites·25 claims
- 0978US6824273B2Liquid crystal projector, and projection lens unit, optical unit and cooling system for the sameHITACHI LTD·Filed 2003·Granted Nov 30, 2004·9 cites·6 claims
- 1078US4941719ALight scanning systemHITACHI LTD·Filed 1987·Granted Jul 17, 1990·39 cites·1 claims
- 1176US6462794B1Image forming unit, enlarging unit, optical parts, and image display apparatus having these componentsHITACHI LTD·Filed 1999·Granted Oct 8, 2002·46 cites·34 claims
- 1276US6392809B2Array lens, lighting optical system, optical unit and imaging apparatusHITACHI LTD·Filed 2001·Granted May 21, 2002·10 cites·21 claims
- 1370US6201645B1Array lens, lighting optical system, optical unit and imaging apparatusHITACHI LTD·Filed 1999·Granted Mar 13, 2001·21 cites·16 claims
- 1470US5455694ALiquid crystal display with pixel shape same as image of light source through microlensHITACHI LTD·Filed 1992·Granted Oct 3, 1995·24 cites·5 claims
- 1569US6741396B2Array lens, lighting optical system, optical unit and imaging apparatusHITACHI LTD·Filed 2003·Granted May 25, 2004·6 cites·4 claims
- 1668US5748238AVideo cameraHITACHI LTD·Filed 1996·Granted May 5, 1998·30 cites·8 claims
- 1766US4557567ALens system with plastic lenses compensating for temperature changesHITACHI LTD·Filed 1983·Granted Dec 10, 1985·20 cites·9 claims
- 1865US6567218B2Array lens, lighting optical system, optical unit and imaging apparatusHITACHI LTD·Filed 2002·Granted May 20, 2003·3 cites·16 claims
- 1964US7733578B2Objective lens design method, lens, and optical system, optical head, and optical disc apparatus using the sameHITACHI MAXELL·Filed 2008·Granted Jun 8, 2010·0 cites·1 claims
- 2064US7152978B2Liquid crystal projector, and projection lens unit, optical unit and cooling system for the sameHITACHI LTD AND HITACHI VIDEO·Filed 2004·Granted Dec 26, 2006·5 cites·10 claims
- 2163US6836378B2Objective lens design method, lens, and optical system, optical head, and optical disc apparatus using the sameHITACHI MAXELL·Filed 2003·Granted Dec 28, 2004·5 cites·16 claims
- 2260US6351295B2Projection type liquid crystal display deviceHITACHI LTD·Filed 2000·Granted Feb 26, 2002·6 cites·3 claims
- 2360US5684548ALiquid crystal display element and micro-lens arrangement and a display using the sameHITACHI LTD·Filed 1995·Granted Nov 4, 1997·19 cites·29 claims
- 2458US7327520B2Optical unit and image display apparatusHITACHI LTD·Filed 2006·Granted Feb 5, 2008·0 cites·9 claims
- 2557US4740676ARange finding automatic focusing system employing a rotatable transparent plate and a half-split light receiving elementHITACHI LTD·Filed 1986·Granted Apr 26, 1988·19 cites·3 claims
- 2655US5565919AVideo camera/VTR and camera station with opto-electronic link between camera/VTR and camera stationHITACHI LTD·Filed 1993·Granted Oct 15, 1996·13 cites·12 claims
- 2754US7106518B2Optical unit and image display apparatusHITACHI LTD·Filed 2005·Granted Sep 12, 2006·0 cites·8 claims
- 2850US4842387AAutomatic focusing apparatus for use in video camera and the likeHITACHI LTD·Filed 1988·Granted Jun 27, 1989·14 cites·11 claims
- 2948US6965482B2Objective lens design method, lens, and optical system, optical head, and optical disc apparatus using the sameHITACHI MAXELL·Filed 2004·Granted Nov 15, 2005·0 cites·12 claims
- 3047US2008106997A1Objective lens optical systemHITACHI MAXELL·Filed 2007·Application pending·0 cites
- 3146US6963453B2Optical unit and image display apparatusHITACHI LTD·Filed 2004·Granted Nov 8, 2005·0 cites·8 claims
- 3246US4096462ADeflection yoke device for use in color television receiver setsHITACHI LTD·Filed 1977·Granted Jun 20, 1978·5 cites·1 claims
- 3344US6545812B2Array lens, lighting optical system, optical unit and imaging apparatusHITACHI LTD·Filed 2002·Granted Apr 8, 2003·0 cites·2 claims
- 3444US6307601B1Projection type liquid crystal display deviceHITACHI LTD·Filed 1997·Granted Oct 23, 2001·10 cites·15 claims
- 3542US5048939AZoom lens systemHITACHI LTD·Filed 1990·Granted Sep 17, 1991·10 cites·11 claims
- 3638USRE38175ELiquid crystal display element and micro-lens arrangement and a display using the sameHITACHI LTD·Filed 1999·Granted Jul 8, 2003·4 cites·40 claims
- 3734US4782356AAutomatic focusing apparatusHITACHI LTD·Filed 1987·Granted Nov 1, 1988·5 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →