Inventor · disambiguated record
Masanori Fujisawa
Also filed as: FUJISAWA MASANORI
43 granted patents·3 pending applications·566 citations·filing 1987–2005
98Inventor score
Top patents by PatentIndex Score
46 records- 0198US7688289B2Organic EL driver circuit and organic EL display deviceROHM CO LTD·Filed 2005·Granted Mar 30, 2010·51 cites·12 claims
- 0287US7400097B2Organic EL display deviceROHM CO LTD·Filed 2005·Granted Jul 15, 2008·8 cites·12 claims
- 0387US6756738B2Organic EL drive circuit and organic EL display device using the sameROHM CO LTD·Filed 2003·Granted Jun 29, 2004·33 cites·22 claims
- 0486US6747417B2Organic EL element drive circuit and organic EL display deviceROHM CO LTD·Filed 2003·Granted Jun 8, 2004·40 cites·15 claims
- 0586US5450036APower amplifier circuit for audio signal and audio device using the sameROHM CO LTD·Filed 1994·Granted Sep 12, 1995·44 cites·8 claims
- 0680US6992647B2Organic EL drive circuit and organic EL display device using the sameROHM CO LTD·Filed 2003·Granted Jan 31, 2006·22 cites·12 claims
- 0779US7109953B2Drive circuit of active matrix type organic EL panel and organic EL display device using the same drive circuitROHM CO LTD·Filed 2003·Granted Sep 19, 2006·19 cites·8 claims
- 0878US7456767B2D/A converter circuit, organic EL drive circuit, and organic EL displayROHM CO LTD·Filed 2005·Granted Nov 25, 2008·11 cites·12 claims
- 0978US7446737B2Organic EL panel driving circuit, organic EL display device and organic EL panel driving circuit inspecting deviceROHM CO LTD·Filed 2005·Granted Nov 4, 2008·4 cites·15 claims
- 1077US5479134APower amplifier circuit for audio signal and audio device using the sameROHM CO LTD·Filed 1994·Granted Dec 26, 1995·29 cites·17 claims
- 1175US7109966B2Display element drive circuit and display deviceROHM CO LTD·Filed 2003·Granted Sep 19, 2006·14 cites·24 claims
- 1275US5483197APower amplifier circuit for audio signal and audio device using the sameROHM CO LTD·Filed 1994·Granted Jan 9, 1996·28 cites·19 claims
- 1372US7243311B2Method and apparatus for supporting development of integrated circuit and a transactional business method involving contracting and licensingROHM CO LTD·Filed 2004·Granted Jul 10, 2007·9 cites·4 claims
- 1470US7586469B2Organic EL drive circuit and organic EL display device using the same organic EL drive circuitROHM CO LTD·Filed 2005·Granted Sep 8, 2009·2 cites·20 claims
- 1569US7084577B2Organic EL element drive circuit and organic EL display device using the same drive circuitROHM CO LTD·Filed 2003·Granted Aug 1, 2006·10 cites·16 claims
- 1667US6563376B2Mute circuit and digital audio amplifier circuitROHM CO LTD·Filed 2001·Granted May 13, 2003·15 cites·10 claims
- 1767US5508658APower amplifier circuit for audio signal and audio device using the sameROHM CO LTD·Filed 1995·Granted Apr 16, 1996·27 cites·13 claims
- 1863US6967604B2D/A converter circuit, organic EL drive circuit and organic EL display deviceROHM CO LTD·Filed 2004·Granted Nov 22, 2005·7 cites·15 claims
- 1960US6792121B2Audio signal amplifier circuit and portable telephone set and portable electronic device using the same audio signal amplifier circuitROHM CO LTD·Filed 2001·Granted Sep 14, 2004·13 cites·16 claims
- 2059US7129916B2Organic EL element drive circuit and organic EL display device using the same drive circuitROHM CO LTD·Filed 2003·Granted Oct 31, 2006·5 cites·15 claims
- 2158US4801889AAmplifier for amplifying input signal voltage and supplying the sameSANYO ELECTRIC CO·Filed 1987·Granted Jan 31, 1989·11 cites·15 claims
- 2257US6454172B1IC card having a display for displaying a response stateROHM CO LTD·Filed 1998·Granted Sep 24, 2002·21 cites·9 claims
- 2356US7471050B2Organic EL drive circuit and organic EL display deviceROHM CO LTD·Filed 2004·Granted Dec 30, 2008·4 cites·7 claims
- 2456US7119769B2Active matrix type organic EL panel drive circuit and organic EL display deviceROHM CO LTD·Filed 2003·Granted Oct 10, 2006·4 cites·15 claims
- 2555US7876297B2Organic EL drive circuit with a D/A converter circuit and organic EL display device using the sameROHM CO LTD·Filed 2005·Granted Jan 25, 2011·3 cites·6 claims
- 2654US5787182AAudio signal amplifier circuit and a portable audio equipment using the sameROHM CO LTD·Filed 1996·Granted Jul 28, 1998·15 cites·10 claims
- 2753US7098905B2Active matrix type organic EL panel drive circuit and organic EL display deviceROHM CO LTD·Filed 2003·Granted Aug 29, 2006·3 cites·17 claims
- 2853US7030841B2Organic EL element drive circuit and organic EL display device using the sameROHM CO LTD·Filed 2003·Granted Apr 18, 2006·5 cites·12 claims
- 2953US5196807AAmplifying circuitSANYO ELECTRIC CO·Filed 1991·Granted Mar 23, 1993·11 cites·7 claims
- 3052US7026766B2Organic EL element drive circuit and organic EL display deviceROHM CO LTD·Filed 2004·Granted Apr 11, 2006·2 cites·19 claims
- 3150US5812028AAudio signal amplifier circuit and a portable acoustic apparatus using the sameROHM CO LTD·Filed 1997·Granted Sep 22, 1998·13 cites·10 claims
- 3250US5770973ASemiconductor device for amplifying audio signalsROHM CO LTD·Filed 1996·Granted Jun 23, 1998·16 cites·7 claims
- 3349US7372439B2Reference current generator circuit of organic EL drive circuit, organic EL drive circuit and organic EL display deviceROHM CO LTD·Filed 2005·Granted May 13, 2008·0 cites·23 claims
- 3449US5808458ARegulated power supply circuitROHM CO LTD·Filed 1997·Granted Sep 15, 1998·11 cites·8 claims
- 3549US5087890AAmplifier circuitSANYO ELECTRIC CO·Filed 1990·Granted Feb 11, 1992·9 cites·6 claims
- 3647US5140281AAmplifier circuitSANYO ELECTRIC CO·Filed 1991·Granted Aug 18, 1992·9 cites·5 claims
- 3745US6025824APiezoelectric transformer driving circuit and cold cathode tube illuminating device using the sameROHM CO LTD·Filed 1997·Granted Feb 15, 2000·10 cites·10 claims
- 3842US7002303B2Organic EL panel drive circuit and organic EL display device using the same drive circuitROHM CO LTD·Filed 2004·Granted Feb 21, 2006·0 cites·19 claims
- 3942US6525649B1Non-contact communication system and interrogator used thereforROHM CO LTD·Filed 1997·Granted Feb 25, 2003·9 cites·6 claims
- 4042US2007222717A1Organic El Display DeviceMAEDE JUN·Filed 2005·Application pending·0 cites
- 4141US2005069142A1Integrated circuit and electronic apparatus provided with the same with software IP implementationFiled 2004·Application pending·0 cites
- 4240US5424684APower amplifier circuit for audio signal and audio device using the sameROHM CO LTD·Filed 1994·Granted Jun 13, 1995·6 cites·10 claims
- 4339US5325440ALoudness control circuitSANYO ELECTRIC CO·Filed 1993·Granted Jun 28, 1994·6 cites·10 claims
- 4438US2007200812A1Organic el display deviceMAEDE JUN·Filed 2005·Application pending·0 cites
- 4531US6266425B1Audio amplifier circuit and audio device using the circuitROHM CO LTD·Filed 1999·Granted Jul 24, 2001·6 cites·10 claims
- 4629US5160897APush-pull power amplifying circuitSANYO ELECTRIC CO·Filed 1991·Granted Nov 3, 1992·1 cites·5 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →