Inventor · disambiguated record
Takeshi Hirayama
Also filed as: HIRAYAMA TAKESHI · SASE TAKASHI
42 granted patents·5 pending applications·674 citations·filing 1974–2025
98Inventor score
Files withHITACHI LTD19KYOCERA CORP17MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3FURUKAWA ELECTRIC CO LTD2NEC CORP2
Top patents by PatentIndex Score
47 records- 0194US5461338ASemiconductor integrated circuit incorporated with substrate bias control circuitNEC CORP·Filed 1993·Granted Oct 24, 1995·248 cites·8 claims
- 0291US5896418AData transmission system having a communication control computer for controlling communication between a communication interface module and terminal devicesHITACHI LTD·Filed 1994·Granted Apr 20, 1999·79 cites·5 claims
- 0379US2025256509A1Liquid ejection head and recording apparatusKYOCERA CORP·Filed 2025·Application pending·0 cites
- 0475US5612643ASemiconductor integrated circuit which prevents malfunctions caused by noiseNEC CORP·Filed 1996·Granted Mar 18, 1997·37 cites·10 claims
- 0575US4580126AMethod of testing analog/digital converter and structure of analog/digital converter suited for the testHITACHI LTD·Filed 1984·Granted Apr 1, 1986·23 cites·10 claims
- 0675US4554461AInformation transmitting apparatusHITACHI LTD·Filed 1983·Granted Nov 19, 1985·28 cites·8 claims
- 0774US5438506ACollective wiring system and method of control thereofHITACHI LTD·Filed 1994·Granted Aug 1, 1995·39 cites·18 claims
- 0874US4855896ACollective wiring system and method of control thereofHITACHI LTD·Filed 1988·Granted Aug 8, 1989·29 cites·15 claims
- 0973US4455980AEngine combustion control methodHITACHI LTD·Filed 1981·Granted Jun 26, 1984·17 cites·14 claims
- 1072US8029327B2Semiconductor device and display device using a one-dimensional substrate and device fabricating method thereofFURUKAWA ELECTRIC CO LTD·Filed 2010·Granted Oct 4, 2011·2 cites·8 claims
- 1171US9392375B2Acoustic generator, acoustic generation device, and electronic deviceKYOCERA CORP·Filed 2013·Granted Jul 12, 2016·3 cites·6 claims
- 1271US7321250B2Integrated circuit deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Jan 22, 2008·3 cites·4 claims
- 1371US4703430AMethod controlling air-fuel ratioHITACHI LTD·Filed 1984·Granted Oct 27, 1987·14 cites·7 claims
- 1470US4566069AElectronic control apparatus for an internal combustion engineHITACHI LTD·Filed 1984·Granted Jan 21, 1986·18 cites·7 claims
- 1570US4178554APhase difference detectorHITACHI LTD·Filed 1977·Granted Dec 11, 1979·13 cites·5 claims
- 1666US12319060B2Liquid ejection head and recording apparatusKYOCERA CORP·Filed 2021·Granted Jun 3, 2025·0 cites·21 claims
- 1766US7545416B2Image processing device and camera including CPU which determines whether processing performed using external memoryPANASONIC CORP·Filed 2004·Granted Jun 9, 2009·8 cites·10 claims
- 1865US9883289B2Acoustic generator, acoustic generation device, and electronic deviceKYOCERA CORP·Filed 2013·Granted Jan 30, 2018·2 cites·13 claims
- 1965US9398378B2Acoustic generator, acoustic generating apparatus, and electronic apparatusKYOCERA CORP·Filed 2013·Granted Jul 19, 2016·2 cites·6 claims
- 2064US4501249AFuel injection control apparatus for internal combustion engineHITACHI LTD·Filed 1983·Granted Feb 26, 1985·13 cites·6 claims
- 2163US5113410AData transmission systemHITACHI LTD·Filed 1990·Granted May 12, 1992·24 cites·13 claims
- 2261US9241205B2Vibration device, sound generator, speaker system, and electronic deviceKYOCERA CORP·Filed 2012·Granted Jan 19, 2016·1 cites·10 claims
- 2357US9119003B2Sound generator and sound-generating apparatusFUKUOKA SHUICHI·Filed 2012·Granted Aug 25, 2015·1 cites·10 claims
- 2454US12232423B2Piezoelectric ceramic compositionKYOCERA CORP·Filed 2020·Granted Feb 18, 2025·0 cites·14 claims
- 2551US4837698AMethod of controlling air-fuel ratioHITACHI LTD·Filed 1987·Granted Jun 6, 1989·8 cites·19 claims
- 2650US12376496B2Piezoelectric ceramic composition and piezoelectric actuatorKYOCERA CORP·Filed 2020·Granted Jul 29, 2025·0 cites·12 claims
- 2750US9392373B2Acoustic generator, acoustic generation device, and electronic deviceKYOCERA CORP·Filed 2013·Granted Jul 12, 2016·0 cites·18 claims
- 2850US2006257074A1Semiconductor device, display device and device fabricating methodFURUKAWA ELECTRIC CO LTD·Filed 2006·Application pending·0 cites
- 2950US2023131275A1Piezoelectric ceramic composition and piezoelectric actuatorKYOCERA CORP·Filed 2021·Application pending·0 cites
- 3048US12097703B2Piezoelectric actuator, liquid discharge head, and recording deviceKYOCERA CORP·Filed 2020·Granted Sep 24, 2024·0 cites·11 claims
- 3148US9392374B2Acoustic generator, acoustic generation device, and electronic deviceKYOCERA CORP·Filed 2013·Granted Jul 12, 2016·0 cites·20 claims
- 3248US9392372B2Acoustic generator, acoustic generation device, and electronic deviceKYOCERA CORP·Filed 2013·Granted Jul 12, 2016·0 cites·20 claims
- 3348US9154885B2Sound generator, sound generation device, and electronic apparatusKYOCERA CORP·Filed 2013·Granted Oct 6, 2015·0 cites·9 claims
- 3448US3936254AApparatus for the continuous manufacture of polymer platesNIPPON PAINT CO LTD·Filed 1974·Granted Feb 3, 1976·16 cites·4 claims
- 3547US4969082AControl method for a collective wiring systemHITACHI LTD·Filed 1989·Granted Nov 6, 1990·8 cites·5 claims
- 3646US9497550B2Vibration device, sound generator, speaker system, and electronic deviceKYOCERA CORP·Filed 2012·Granted Nov 15, 2016·0 cites·9 claims
- 3745US5224124AData transmission systemHITACHI LTD·Filed 1991·Granted Jun 29, 1993·14 cites·8 claims
- 3844US4561056AElectronic control apparatus for internal combustion engineHITACHI LTD·Filed 1982·Granted Dec 24, 1985·5 cites·10 claims
- 3944US4428051AElectronic control apparatus for internal combustion engineHITACHI LTD·Filed 1980·Granted Jan 24, 1984·7 cites·16 claims
- 4042US9402136B2Sound generator and electronic apparatus using the sameKYOCERA CORP·Filed 2013·Granted Jul 26, 2016·0 cites·9 claims
- 4142US2005002153A1Semiconductor integrated circuit device, mounting board, and device and board assemblyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Application pending·0 cites
- 4239US6841864B2Semiconductor integrated circuit device, mounting board, and device and board assemblyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jan 11, 2005·0 cites·6 claims
- 4339US2023038095A1Piezoelectric actuator, liquid discharge head, and recording deviceKYOCERA CORP·Filed 2020·Application pending·0 cites
- 4437US8758637B2Apparatus and method of removing coating of line-shaped body using plasmaHIRAYAMA TAKESHI·Filed 2008·Granted Jun 24, 2014·0 cites·14 claims
- 4537US4604620AInformation transmission systemHITACHI LTD·Filed 1983·Granted Aug 5, 1986·7 cites·19 claims
- 4632US4771282ATerminal for data transmission systemHITACHI LTD·Filed 1987·Granted Sep 13, 1988·3 cites·8 claims
- 4732US4522178AMethod of fuel control in engineHITACHI LTD·Filed 1983·Granted Jun 11, 1985·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →