Inventor · disambiguated record
Tomohiko Sasano
Also filed as: SASANO TOMOHIKO
15 granted patents·208 citations·filing 1998–2007
93Inventor score
Top patents by PatentIndex Score
15 records- 0190US6833667B2Organic electroluminescence element and image forming apparatus or portable terminal unit using thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Dec 21, 2004·69 cites·70 claims
- 0290US6490100B1Objective lens and optical head deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 3, 2002·24 cites·13 claims
- 0379US7177101B2Optical head apparatus and optical information recording and reproduction apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Feb 13, 2007·10 cites·7 claims
- 0479US6504975B1Coupling lens and semiconductor laser moduleMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Jan 7, 2003·50 cites·41 claims
- 0578US7782540B2Optical head apparatus and optical information recording and reproduction apparatusPANASONIC CORP·Filed 2007·Granted Aug 24, 2010·2 cites·12 claims
- 0676US6807017B2Objective lens and optical head deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Oct 19, 2004·8 cites·9 claims
- 0776US6590717B2Optical system for optical disk, optical head unit for optical disk, and optical drive deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jul 8, 2003·11 cites·37 claims
- 0872US7602561B2Optical head apparatus and optical information recording and reproduction apparatusPANASONIC CORP·Filed 2007·Granted Oct 13, 2009·1 cites·12 claims
- 0968US6829209B1Objective for optical disk, optical head device and optical information recording/reproducing apparatus both comprising the same, mold for forming lens, method for machining mold for forming lens, and shape measuring instrumentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 7, 2004·4 cites·27 claims
- 1066US7099260B2Objective lens for optical diskMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Aug 29, 2006·3 cites·3 claims
- 1164US6627869B2Beam shaper, and semiconductor laser source device and optical head using the beam shaperMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Sep 30, 2003·5 cites·11 claims
- 1260US6606198B2Lens arrayMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 12, 2003·9 cites·23 claims
- 1350US7046350B2Device for calculating diffraction efficiencies of a diffraction lens, lens with grating element, and optical system for readingMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 16, 2006·2 cites·41 claims
- 1446US6349000B1Device for calculating diffraction efficiencies of a diffraction lens, lens with grating element, and optical system for readingMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Feb 19, 2002·10 cites·29 claims
- 1543USRE40954EObjective lens and optical head devicePANASONIC CORP·Filed 2000·Granted Nov 10, 2009·0 cites·21 claims
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