Inventor · disambiguated record
Yoshiaki Komma
Also filed as: KOMMA YOSHIAKI
177 granted patents·24 pending applications·1,602 citations·filing 1989–2024
99Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD72PANASONIC CORP53KOMMA YOSHIAKI24YAMASAKI FUMITOMO14PANASONIC IP MAN CO LTD11
Top patents by PatentIndex Score
201 records- 0198US5703856AOptical head and optical data recording and reproducing apparatus having the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Dec 30, 1997·136 cites·42 claims
- 0295US5446565ACompound objective lens having two focal pointsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Aug 29, 1995·213 cites·34 claims
- 0394US7433290B2Complex objective lens, optical head, optical information apparatus, computer, optical disk player, car navigation system, optical disk recorder, and optical disk serverMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Oct 7, 2008·11 cites·33 claims
- 0494US7245407B2Complex objective lens compatible with information media of different thicknessesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jul 17, 2007·30 cites·17 claims
- 0594US6954417B2Optical disk device and information recording/reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Oct 11, 2005·30 cites·22 claims
- 0693US7330292B2Complex objective lens, optical head, optical information apparatus, computer, optical disk player, car navigation system, optical disk recorder, and optical disk serverMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Granted Feb 12, 2008·9 cites·13 claims
- 0793US7158450B2Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jan 2, 2007·23 cites·4 claims
- 0893US5111448AOptical pickup head having a hologram-associated objective lens and optical information processing apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted May 5, 1992·56 cites·8 claims
- 0992US6928035B2Optical pick-up, optical disk apparatus and information processing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 9, 2005·40 cites·51 claims
- 1091US5986779AMultiple focus lens, an optical head apparatus and an optical information recording-reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Nov 16, 1999·64 cites·21 claims
- 1191US5815293ACompound objective lens having two focal pointsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Sep 29, 1998·83 cites·18 claims
- 1290US5754512ACorrection elements to lower light intensity around an optical axis of an optical head with a plurality of focal pointsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted May 19, 1998·58 cites·19 claims
- 1389US7161890B2Optical head device and optical information device using this and computer optical disk player car navigation system optical disk recorder and optical disk server using this optical information deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jan 9, 2007·19 cites·9 claims
- 1489US6654336B2Semiconductor light source, optical pickup head apparatus, and data record/playback apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Nov 25, 2003·25 cites·14 claims
- 1589US5648951AMovable optical head integrally incorporated with objective lens and hologram elementMATSUSHITA ELECTRIC CO LTD·Filed 1995·Granted Jul 15, 1997·65 cites·16 claims
- 1687US7773304B2Optical pickup, optical disc drive device, and optical information devicePANASONIC CORP·Filed 2007·Granted Aug 10, 2010·6 cites·12 claims
- 1787US6987598B2Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jan 17, 2006·12 cites·11 claims
- 1887US6534794B1Semiconductor light-emitting unit, optical apparatus and optical disk system having heat sinking means and a heating element incorporated with the mounting systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Mar 18, 2003·29 cites·11 claims
- 1987US5644413AOptical head for adjusting a positional relation between the information medium and the optical headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jul 1, 1997·51 cites·38 claims
- 2086US7333405B2Optical disk device and information recording/reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Feb 19, 2008·4 cites·12 claims
- 2186US7248420B2Optical pickup lens device and information recording and reproducing device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Jul 24, 2007·5 cites·10 claims
- 2285US7034980B2Optical element, optical head, optical recording reproducing apparatus and optical recording/ reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Apr 25, 2006·3 cites·15 claims
- 2384US7283450B2Optical disk device and information recording/reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Oct 16, 2007·3 cites·3 claims
- 2483US5737296AFocus and tracking error detection by using plus and minus first order diffracted lightMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Apr 7, 1998·41 cites·19 claims
- 2583US5400311AHologram and optical apparatus with hologramMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Mar 21, 1995·28 cites·7 claims
- 2682US7889622B2Optical head for optical recorder/reproducerPANASONIC CORP·Filed 2005·Granted Feb 15, 2011·4 cites·6 claims
- 2781US8254239B2Complex objective lens including saw-tooth diffractive element for using on blue, red and infrared lightsKOMMA YOSHIAKI·Filed 2008·Granted Aug 28, 2012·3 cites·39 claims
- 2881USRE41455EObjective lens for optical disks having different thicknessesPANASONIC CORP·Filed 2005·Granted Jul 27, 2010·3 cites·36 claims
- 2981US7330419B2Optical head device and optical information apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Feb 12, 2008·3 cites·13 claims
- 3081US7170664B2Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jan 30, 2007·2 cites·11 claims
- 3181US7164638B2Optical head and optical recording/reproducing device using it and aberration correction methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jan 16, 2007·14 cites·18 claims
- 3281US5412631AOptical head apparatus for storing, reading or erasing information, and optical information reproducing method and optical information apparatus for optically reading information stored in an optical memoryMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted May 2, 1995·30 cites·57 claims
- 3380US7742384B2Optical head and optical disc devicePANASONIC CORP·Filed 2007·Granted Jun 22, 2010·4 cites·17 claims
- 3480USRE38943ECompound objective lens for optical disks having different thicknessesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jan 24, 2006·17 cites·123 claims
- 3579US5912868AOptical head for reproducing data from first and second optical disksMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Jun 15, 1999·28 cites·5 claims
- 3678US6967916B2Optical head apparatus, optical information recording and reproducing apparatus, method for detecting aberration and method for adjusting optical head apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Nov 22, 2005·12 cites·15 claims
- 3778US5594713AOptical pickup head apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jan 14, 1997·28 cites·13 claims
- 3877US7990819B2Optical head apparatus and optical information apparatusPANASONIC CORP·Filed 2005·Granted Aug 2, 2011·3 cites·35 claims
- 3977US6400671B2Optical head deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jun 4, 2002·10 cites·4 claims
- 4077US5687153AOptical head device and optical information apparatus using a lithium niobate hologram with divisional areas to diffract light to corresponding photo detector areasMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Nov 11, 1997·31 cites·11 claims
- 4176US7920310B2Complex objective lens for an optical head and optical information apparatusPANASONIC CORP·Filed 2007·Granted Apr 5, 2011·4 cites·19 claims
- 4276US7352664B2Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Apr 1, 2008·1 cites·6 claims
- 4376US7248409B2Optical element, optical lens, optical head apparatus, optical information apparatus, computer, optical information medium player, car navigation system, optical information medium recorder, and optical information medium serverMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jul 24, 2007·10 cites·43 claims
- 4476US7239588B2Method and apparatus for detecting foreign body on object surface, and optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jul 3, 2007·11 cites·39 claims
- 4576US7027378B2Optical disk device and information recording/reproducing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Apr 11, 2006·6 cites·13 claims
- 4676US6927375B2Optical element, optical head and optical information processorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 9, 2005·11 cites·12 claims
- 4776US6898169B2Optical pickup head device, information recording/reproducing apparatus, and method for recording informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 24, 2005·9 cites·15 claims
- 4875US7978568B2Optical head, diffraction device, objective lens, and optical disc apparatusPANASONIC CORP·Filed 2007·Granted Jul 12, 2011·2 cites·4 claims
- 4975US7738343B2Optical disk device and information recording/reproducing methodPANASONIC CORP·Filed 2006·Granted Jun 15, 2010·1 cites·8 claims
- 5075US5345072AFocus detection device for reading information from an optical recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Sep 6, 1994·24 cites·12 claims
Showing the top 50 of 201 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →