Inventor · disambiguated record
Osamu Hamada
Also filed as: HAMADA OSAMU · HAMADA YUICHIRO
26 granted patents·494 citations·filing 1975–2014
97Inventor score
Top patents by PatentIndex Score
26 records- 0197US4054843AAmplifier with modulated power supply voltageSONY CORP·Filed 1976·Granted Oct 18, 1977·70 cites·10 claims
- 0295US7356308B2Radio communication apparatus and radio communication method, radio communication system, recording medium, and computer programSONY CORP·Filed 2007·Granted Apr 8, 2008·19 cites·2 claims
- 0392US4015213APulse width modulated signal amplifierSONY CORP·Filed 1976·Granted Mar 29, 1977·35 cites·11 claims
- 0488US4059807APulse width modulated amplifierSONY CORP·Filed 1975·Granted Nov 22, 1977·24 cites·5 claims
- 0587US4661982ADigital graphic equalizerSONY CORP·Filed 1985·Granted Apr 28, 1987·46 cites·12 claims
- 0685US3976955AProtective circuit for pulse width modulated signal amplifierSONY CORP·Filed 1975·Granted Aug 24, 1976·20 cites·8 claims
- 0783US8981788B2Capacitor power supply, voltage monitoring device, method of monitoring voltage, and method of manufacturing capacitor power supplyTAIYO YUDEN KK·Filed 2014·Granted Mar 17, 2015·8 cites·6 claims
- 0880US4338674ADigital waveform generating apparatusSONY CORP·Filed 1980·Granted Jul 6, 1982·19 cites·5 claims
- 0975US7177595B2Radio communication apparatus and radio communication method, radio communication system, recording medium, and computer programSONY CORP·Filed 2003·Granted Feb 13, 2007·13 cites·24 claims
- 1075US4446351AProcess for preparing a press dieMITSUBISHI ELECTRIC CORP·Filed 1981·Granted May 1, 1984·26 cites·8 claims
- 1173US4194095AFluid flow control speaker systemSONY CORP·Filed 1978·Granted Mar 18, 1980·37 cites·11 claims
- 1273US4004246APulse width modulated signal amplifierHAMADA OSAMU·Filed 1975·Granted Jan 18, 1977·15 cites·9 claims
- 1371USRE44185ERadio communication apparatus and radio communication method, radio communication system, recording medium, and computer programHAMADA OSAMU·Filed 2010·Granted Apr 30, 2013·1 cites·178 claims
- 1470US7299191B2Radio transmission device and method, radio receiving device and method, radio transmitting/receiving system, and storage mediumSONY CORP·Filed 2005·Granted Nov 20, 2007·3 cites·21 claims
- 1567US7947933B2Ceramic heater and method for manufacture thereofKYOCERA CORP·Filed 2004·Granted May 24, 2011·13 cites·10 claims
- 1666US4825035AControl apparatus for energy beam hardeningMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Apr 25, 1989·27 cites·12 claims
- 1766US4816293AProcess for coating a workpiece with a ceramic materialMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Mar 28, 1989·26 cites·8 claims
- 1862US6978242B2Radio transmission device and method, radio receiving device and method, radio transmitting/receiving system, and storage mediumSONY CORP·Filed 2001·Granted Dec 20, 2005·5 cites·38 claims
- 1962US6125264ATelephone apparatusSONY CORP·Filed 1995·Granted Sep 26, 2000·40 cites·8 claims
- 2057USRE45126ERadio communication apparatus and radio communication method, radio communication system, recording medium, and computer programSONY CORP·Filed 2013·Granted Sep 9, 2014·0 cites·56 claims
- 2155US4388849ASignal processing systemSONY CORP·Filed 1980·Granted Jun 21, 1983·7 cites·9 claims
- 2254US4511966ADigital signal processing systemSONY CORP·Filed 1983·Granted Apr 16, 1985·18 cites·3 claims
- 2350US3956716APulse width modulated signal amplifierSONY CORP·Filed 1975·Granted May 11, 1976·6 cites·10 claims
- 2443US4179969ATone generator for electrical music instrumentSONY CORP·Filed 1978·Granted Dec 25, 1979·4 cites·16 claims
- 2530US4040075AFrequency converterSONY CORP·Filed 1975·Granted Aug 2, 1977·1 cites·9 claims
- 2628US4758388AMethod of manufacturing ceramic vibration plate for speakerMITSUBISHI ELECTRIC CORP·Filed 1986·Granted Jul 19, 1988·11 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →