Inventor · disambiguated record
Takeo Ohta
Also filed as: OHTA TAKEO
31 granted patents·1 pending application·580 citations·filing 1974–2002
97Inventor score
Top patents by PatentIndex Score
32 records- 0197US3971874AOptical information storage material and method of making itMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1974·Granted Jul 27, 1976·83 cites·11 claims
- 0295US5194363AOptical recording medium and production process for the mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Mar 16, 1993·71 cites·15 claims
- 0395US4403318AApparatus and method for recording, reproducing and erasing on optical recording discsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted Sep 6, 1983·50 cites·12 claims
- 0492US4278734AOptical information recording material and method of recording and reproducing information using same materialMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1979·Granted Jul 14, 1981·37 cites·13 claims
- 0587US4091171AOptical information storage material and method of making itMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1976·Granted May 23, 1978·20 cites·11 claims
- 0681US5191565AOptical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Mar 2, 1993·30 cites·14 claims
- 0780US5681632AOptical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Oct 28, 1997·36 cites·19 claims
- 0877US5610879AOptical reproducing device, optical reproducing method using the same, and optical record medium used in the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Mar 11, 1997·24 cites·11 claims
- 0977US4322839AMethod and apparatus for recording and reproducing information on and from an optical diskMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1979·Granted Mar 30, 1982·18 cites·15 claims
- 1073US5230973AMethod of recording and erasing information in an erasible optical recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Jul 27, 1993·17 cites·3 claims
- 1173US5024910AOptical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Jun 18, 1991·18 cites·6 claims
- 1271US5151295AProcess for manufacturing an optical recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Sep 29, 1992·20 cites·27 claims
- 1370US5395669AOptical record mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Mar 7, 1995·19 cites·17 claims
- 1470US4330883ASystem and method of optical information storage in a recording discMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1979·Granted May 18, 1982·14 cites·19 claims
- 1566US4457794AMethod for manufacturing optical memory discMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1983·Granted Jul 3, 1984·12 cites·6 claims
- 1666US4110160AFuel assembly spacer within the coolant ductDORYOKURO KAKUNENRYO·Filed 1977·Granted Aug 29, 1978·14 cites·7 claims
- 1765US5147701AInformation recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted Sep 15, 1992·13 cites·11 claims
- 1858US6967911B1Multivalued information recording method, multivalued information recording apparatus, and recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Nov 22, 2005·3 cites·4 claims
- 1958US4547875AOptical recording and retrieving discMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1982·Granted Oct 15, 1985·9 cites·3 claims
- 2055USRE36383EOptical recording medium and production process for the mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Nov 9, 1999·8 cites·16 claims
- 2155US5674649AMethod of recording informationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Oct 7, 1997·10 cites·12 claims
- 2252US5439752AOptical recording medium and reflecting film for use thereinMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Aug 8, 1995·8 cites·3 claims
- 2348US5665520AOptical recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Sep 9, 1997·7 cites·12 claims
- 2448US4852076AOptical information recording and reproducing disc employing a film having thermally changeable optical characteristicsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1987·Granted Jul 25, 1989·8 cites·2 claims
- 2547US4621794AApparatus for producing a grain-oriented electromagnetic steel strip or sheetNIPPON STEEL CORP·Filed 1984·Granted Nov 11, 1986·7 cites·3 claims
- 2642US5587216AOptical recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Dec 24, 1996·4 cites·2 claims
- 2742US4770923AProtection film structure for functional devicesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1985·Granted Sep 13, 1988·13 cites·5 claims
- 2841US5753334AOptical recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted May 19, 1998·4 cites·4 claims
- 2940US7193947B1Optical information recording method, optical information recording device and optical information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Mar 20, 2007·0 cites·24 claims
- 3039US2002172121A1Method for recording information on optical recording medium and optical recording medium on which information is recordedMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Application pending·0 cites
- 3132US5256518AInformation storage disk employing a reflective layer having good malleabilityMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Oct 26, 1993·1 cites·9 claims
- 3228US4500366AProcess for producing a grain-oriented electromagnetic steel strip or sheetNIPPON STEEL CORP·Filed 1982·Granted Feb 19, 1985·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →