Inventor · disambiguated record
Akira Toyama
Also filed as: TOYAMA AKIRA
39 granted patents·3 pending applications·822 citations·filing 1971–2018
98Inventor score
Files withNIPPON PRECISION CIRCUITS14YOKOGAWA ELECTRIC CORP11KCEO INC3KOBE STEEL LTD3SANKYO SEIKI SEISAKUSHO KK3
Top patents by PatentIndex Score
42 records- 0195US5398029ASampling rate converterNIPPON PRECISION CIRCUITS·Filed 1993·Granted Mar 14, 1995·85 cites·6 claims
- 0292US3992168AHeat exchanger with rectification effectKOBE STEEL LTD·Filed 1974·Granted Nov 16, 1976·84 cites·20 claims
- 0389US6670854B2Fractional-N frequency synthesizer and method of operating the sameNIPPON PRECISION CIRCUITS·Filed 2002·Granted Dec 30, 2003·41 cites·7 claims
- 0488US8240863B2Illuminant deviceTAKEUCHI HIDETO·Filed 2008·Granted Aug 14, 2012·12 cites·6 claims
- 0588US6551188B2Video game device, new practice creating method and readable storage medium storing new practice creating programKCEO INC·Filed 2001·Granted Apr 22, 2003·104 cites·9 claims
- 0685US6685565B2Video game device, character relationship level display method, and readable storage medium storing character relationship level display programKCEO INC·Filed 2001·Granted Feb 3, 2004·74 cites·9 claims
- 0784US11287698B2Liquid crystal display apparatusSAKAI DISPLAY PRODUCTS CORP·Filed 2018·Granted Mar 29, 2022·2 cites·9 claims
- 0881US4399553ACharacter readerSANKYO SEIKI SEISAKUSHO KK·Filed 1980·Granted Aug 16, 1983·58 cites·18 claims
- 0979US7672033B2Light modulating apparatusYOKOGAWA ELECTRIC CORP·Filed 2007·Granted Mar 2, 2010·6 cites·12 claims
- 1079US7667544B2Clock reproducing apparatusYOKOGAWA ELECTRIC CORP·Filed 2007·Granted Feb 23, 2010·9 cites·6 claims
- 1179US5523712AResistor array circuit device and variable gain device utilizing sameNIPPON PRECISION CIRCUITS·Filed 1995·Granted Jun 4, 1996·41 cites·11 claims
- 1276US6292124B1Delta-sigma D/A converterNIPPON PRECISION CIRCUITS·Filed 2000·Granted Sep 18, 2001·23 cites·3 claims
- 1375US4864305AD/A converterSEIKOSHA KK·Filed 1988·Granted Sep 5, 1989·27 cites·14 claims
- 1474US7245413B2Light modulation apparatus and light modulator control methodYOKOGAWA ELECTRIC CORP·Filed 2006·Granted Jul 17, 2007·4 cites·5 claims
- 1569US5365458AMotor eccentricity measuring apparatusNIHON DENSAN KK·Filed 1992·Granted Nov 15, 1994·28 cites·11 claims
- 1668US3989810AHydrogen sulfide removalKOBE STEEL LTD·Filed 1975·Granted Nov 2, 1976·11 cites·13 claims
- 1767US6515601B2Noise shaperNIPPON PRECISION CIRCUITS·Filed 2001·Granted Feb 4, 2003·19 cites·10 claims
- 1867US5679942AMagnetic card reader using two multi channel magnetic heads that can read magnetic track data in two separate and distinct directionsSANKYO SEIKI SEISAKUSHO KK·Filed 1994·Granted Oct 21, 1997·36 cites·18 claims
- 1964US9272213B2Game operation device, game operation method, computer-readable recording medium, and game operation systemTOYAMA AKIRA·Filed 2012·Granted Mar 1, 2016·2 cites·7 claims
- 2064US8435114B2Game program, game apparatus, and game methodKAMIYA KEISUKE·Filed 2008·Granted May 7, 2013·2 cites·8 claims
- 2164US5481267ASampling rate converterNIPPON PRECISION CIRCUITS·Filed 1994·Granted Jan 2, 1996·17 cites·5 claims
- 2263US5592659ATiming signal generatorYOKOGAWA ELECTRIC CORP·Filed 1995·Granted Jan 7, 1997·24 cites·5 claims
- 2363US3931394AHydrogen sulfide removalKOBE STEEL LTD·Filed 1971·Granted Jan 6, 1976·10 cites·5 claims
- 2462US7965800B2Clock recovery apparatusYOKOGAWA ELECTRIC CORP·Filed 2008·Granted Jun 21, 2011·2 cites·9 claims
- 2562US6369731B1Delta sigma D/A converterNIPPON PRECISION CIRCUITS·Filed 2000·Granted Apr 9, 2002·12 cites·5 claims
- 2659US7580641B2Repeater and optical communication systemYOKOGAWA ELECTRIC CORP·Filed 2006·Granted Aug 25, 2009·1 cites·6 claims
- 2755US2008242425A1Video game program, video game device, and video game control methodKONAMI DIGITAL ENTERTAINMENT·Filed 2008·Application pending·0 cites
- 2853US6719628B2Video game device, play result display method of video game, and readable recording medium where play result display method program is recordedKCEO INC·Filed 2001·Granted Apr 13, 2004·5 cites·7 claims
- 2952US7496169B2Frequency synthesizer, pulse train generation apparatus and pulse train generation methodNIPPON PRECISION CIRCUITS·Filed 2005·Granted Feb 24, 2009·2 cites·11 claims
- 3051US4929947AConstant width pulse distribution in a digital to analog converter for serial digital dataNIPPON PRECISION CIRCUITS·Filed 1988·Granted May 29, 1990·11 cites·4 claims
- 3150US4231072ARecord/playback device for magnetic recordingSANKYO SEIKI SEISAKUSHO KK·Filed 1978·Granted Oct 28, 1980·7 cites·19 claims
- 3249US5727085AWaveform data compression apparatusNIPPON PRECISION CIRCUITS·Filed 1995·Granted Mar 10, 1998·32 cites·7 claims
- 3348US5703515ATiming generator for testing ICYOKOGAWA ELECTRIC CORP·Filed 1996·Granted Dec 30, 1997·13 cites·19 claims
- 3443US2010066456A1Clock reproducing apparatusYOKOGAWA ELECTRIC CORP·Filed 2009·Application pending·0 cites
- 3541US7069285B2Decimation filterNIPPON PRECISION CIRCUITS·Filed 2002·Granted Jun 27, 2006·1 cites·18 claims
- 3638US7243033B2Inspection apparatusYOKOGAWA ELECTRIC CORP·Filed 2005·Granted Jul 10, 2007·0 cites·17 claims
- 3735US4232332AColor television receiverSONY CORP·Filed 1978·Granted Nov 4, 1980·3 cites·17 claims
- 3835US2010060502A1A/d converterYOKOGAWA ELECTRIC CORP·Filed 2009·Application pending·0 cites
- 3934US5659317AApparatus for reproducing digital audio waveform dataNIPPON PRECISION CIRCUITS·Filed 1995·Granted Aug 19, 1997·2 cites·6 claims
- 4033US7522660B2Pulse pattern generating apparatusYOKOGAWA ELECTRIC CORP·Filed 2004·Granted Apr 21, 2009·0 cites·6 claims
- 4133US6041291ADigital data processing circuit and digital data processing methodNIPPON PRECISION CIRCUITS·Filed 1998·Granted Mar 21, 2000·9 cites·14 claims
- 4231US5528531ASerial-to-parallel multiplierNIPPON PRECISION CIRCUITS·Filed 1994·Granted Jun 18, 1996·3 cites·21 claims
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