Inventor · disambiguated record
Akira Hirano
Also filed as: HIRANO AKIRA
112 granted patents·15 pending applications·1,663 citations·filing 1975–2022
99Inventor score
Files withNIPPON TELEGRAPH & TELEPHONE33SOKO KAGAKU CO LTD20NEC CORP8OSAKA GAS CO LTD8ASAHI GLASS CO LTD6
Top patents by PatentIndex Score
127 records- 0197US9502606B2Nitride semiconductor ultraviolet light-emitting elementSOKO KAGAKU CO LTD·Filed 2016·Granted Nov 22, 2016·19 cites·5 claims
- 0296US4810965APosition detecting apparatus using a magnetic sensor and a closed magnetic circuit with non-uniform magnetic flux distributionFUJITSU LTD·Filed 1986·Granted Mar 7, 1989·109 cites·46 claims
- 0394US4509038ACode-converting system for band compression of digital signalsNIPPON ELECTRIC CO·Filed 1983·Granted Apr 2, 1985·93 cites·3 claims
- 0493US11152543B2Nitride semiconductor light-emitting elementSOKO KAGAKU CO LTD·Filed 2017·Granted Oct 19, 2021·5 cites·3 claims
- 0593US9520725B2Wireless power transfer system, transmission device, and controlling method of wireless power transfer systemMASAOKA SHINYA·Filed 2011·Granted Dec 13, 2016·269 cites·9 claims
- 0693US4460923APredictive coding system for television signalsNIPPON ELECTRIC CO·Filed 1982·Granted Jul 17, 1984·83 cites·5 claims
- 0792US9356192B2Nitride semiconductor ultraviolet light-emitting elementPERNOT CYRIL·Filed 2011·Granted May 31, 2016·23 cites·10 claims
- 0892US6865348B2Optical transmission method, optical transmitter, optical receiver, and optical transmission systemNIPPON TELEGRAPH & TELEPHONE·Filed 2001·Granted Mar 8, 2005·70 cites·27 claims
- 0991US9450157B2Ultraviolet light emitting device using metal non-bondable amorphous fluororesin molding compoundSOKO KAGAKU CO LTD·Filed 2014·Granted Sep 20, 2016·23 cites·9 claims
- 1090US11159242B2Optical transmitterNIPPON TELEGRAPH & TELEPHONE·Filed 2017·Granted Oct 26, 2021·9 cites·18 claims
- 1190US11049999B2Template, nitride semiconductor ultraviolet light-emitting element, and method of manufacturing templateSOKO KAGAKU CO LTD·Filed 2017·Granted Jun 29, 2021·6 cites·6 claims
- 1290US6763197B1Optical transmitter and optical transmitter control method using variable duty ratio setting and alternate phase inversion for optical clock pulsesNIPPON TELEGRAPH & TELEPHONE·Filed 2000·Granted Jul 13, 2004·33 cites·20 claims
- 1389US7116917B2Optical transmitter and optical transmission systemNIPPON TELEGRAPH & TELEPHONE·Filed 2002·Granted Oct 3, 2006·32 cites·24 claims
- 1488US10823989B2Bias control circuit and bias control methodNIPPON TELEGRAPH & TELEPHONE·Filed 2018·Granted Nov 3, 2020·4 cites·22 claims
- 1588US7734194B2Optical transmission system, optical transmitter for optical transmission system, and optical receiver for optical transmission systemNIPPON TELEGRAPH & TELEPHONE·Filed 2005·Granted Jun 8, 2010·16 cites·5 claims
- 1687US8005374B2Optical transmission system, optical transmitter for optical transmission system, and optical receiver for optical transmission systemNIPPON TELEGRAPH & TELEPHONE·Filed 2010·Granted Aug 23, 2011·10 cites·6 claims
- 1786US8964581B2Bandwidth variable communication method, bandwidth variable communication apparatus, transmission bandwidth determination apparatus, transmission bandwidth determination method, node apparatus, communication path setting system, communication path settingTAKARA HIDEHIKO·Filed 2010·Granted Feb 24, 2015·13 cites·25 claims
- 1886US5376347AUniform inorganic micropheres and production thereofOSAKA GAS CO LTD·Filed 1992·Granted Dec 27, 1994·72 cites·11 claims
- 1985US11546064B2Optical transmission system and transmission mode selecting methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 3, 2023·4 cites·18 claims
- 2085US10313015B2Optical transmitter and bias voltage control methodNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Granted Jun 4, 2019·6 cites·11 claims
- 2185US7361948B2Filter function-equipped optical sensor and flame sensorUV CRAFTORY CO LTD·Filed 2004·Granted Apr 22, 2008·37 cites·16 claims
- 2284US7536108B2High precision chromatic dispersion measuring method and automatic dispersion compensating optical link system that uses this methodNIPPON TELEGRAPH & TELEPHONE·Filed 2002·Granted May 19, 2009·30 cites·39 claims
- 2384US5264286ALaminated glass structureASAHI GLASS CO LTD·Filed 1992·Granted Nov 23, 1993·68 cites·25 claims
- 2483US11217726B2Nitride semiconductor ultraviolet light-emitting elementSOKO KAGAKU CO LTD·Filed 2018·Granted Jan 4, 2022·2 cites·11 claims
- 2583US9112115B2Nitride semiconductor ultraviolet light-emitting elementINAZU TETSUHIKO·Filed 2011·Granted Aug 18, 2015·5 cites·17 claims
- 2682US10615868B2Communication system and fault detection methodNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Granted Apr 7, 2020·4 cites·9 claims
- 2782US10511381B2Communication system and fault location specifying methodNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Granted Dec 17, 2019·4 cites·4 claims
- 2882US6836970B2Wheel alignment measuring method and apparatusHONDA MOTOR CO LTD·Filed 2001·Granted Jan 4, 2005·25 cites·5 claims
- 2982US4901560ARoller clamp type wheel examining apparatusHONDA MOTOR CO LTD·Filed 1988·Granted Feb 20, 1990·35 cites·51 claims
- 3081US8822976B2Nitride semiconductor ultraviolet light-emitting elementINAZU TETSUHIKO·Filed 2011·Granted Sep 2, 2014·4 cites·13 claims
- 3180US11516073B2Malfunction point estimation method and malfunction point estimation apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Nov 29, 2022·3 cites·8 claims
- 3279US5132161AWindow glass for automobile with a heat reflective layer and an antenna conductorASAHI GLASS CO LTD·Filed 1991·Granted Jul 21, 1992·39 cites·11 claims
- 3378US5858562AOrganic thin film electroluminescent deviceNEC CORP·Filed 1995·Granted Jan 12, 1999·65 cites·48 claims
- 3476US5070230AElectrically heatable windshieldASAHI GLASS CO LTD·Filed 1990·Granted Dec 3, 1991·50 cites·9 claims
- 3576US4591908AMethod and apparatus for adaptive predictive encoding/decoding of multi-level picture signalsNEC CORP·Filed 1984·Granted May 27, 1986·23 cites·8 claims
- 3674US7763672B2Red colored film, red colored composition, color filter and liquid crystal display deviceTOYO INK MFG CO·Filed 2006·Granted Jul 27, 2010·2 cites·9 claims
- 3772US12457040B2Optical transmission system and transmission mode selecting methodNTT INC·Filed 2022·Granted Oct 28, 2025·0 cites·2 claims
- 3872US9412586B2Method for producing a template for epitaxial growth having a sapphire (0001) substrate, an initial-stage A1N layer and laterally overgrown A1XGAYN (0001) layerAMANO HIROSHI·Filed 2009·Granted Aug 9, 2016·3 cites·8 claims
- 3970US11342990B2State estimating device and communication systemNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted May 24, 2022·2 cites·17 claims
- 4070US6983085B2Optical transmission circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2003·Granted Jan 3, 2006·12 cites·21 claims
- 4170US5108479AProcess for manufacturing glass with functional coatingASAHI GLASS CO LTD·Filed 1990·Granted Apr 28, 1992·38 cites·6 claims
- 4269US10505087B2Method for manufacturing nitride semiconductor ultraviolet light-emitting element and nitride semiconductor ultraviolet light-emitting elementSOKO KAGAKU CO LTD·Filed 2017·Granted Dec 10, 2019·1 cites·15 claims
- 4369US4962664ARoller clamp type wheel examining apparatusHONDA MOTOR CO LTD·Filed 1989·Granted Oct 16, 1990·21 cites·16 claims
- 4468US11840115B2Axle structureTOYOTA MOTOR CO LTD·Filed 2019·Granted Dec 12, 2023·1 cites·3 claims
- 4568US10297715B2Nitride semiconductor ultraviolet light-emitting elementSOKO KAGAKU CO LTD·Filed 2015·Granted May 21, 2019·2 cites·9 claims
- 4668US5137560AProcess for manufacturing glass with functional coatingASAHI GLASS COMPANY INC·Filed 1991·Granted Aug 11, 1992·35 cites·10 claims
- 4767US7040026B2Wheel runout measuring methodHONDA MOTOR CO LTD·Filed 2001·Granted May 9, 2006·15 cites·2 claims
- 4866US10527781B2Communication system and connectorNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Granted Jan 7, 2020·1 cites·19 claims
- 4965US9154257B2Frequency assignment method and apparatusHIRANO AKIRA·Filed 2011·Granted Oct 6, 2015·2 cites·22 claims
- 5065US6276217B1Method of measuring fluid flow by analyzing the fluorescent emissions of tracer particles in the fluidOSAKA GAS CO LTD·Filed 1999·Granted Aug 21, 2001·20 cites·6 claims
Showing the top 50 of 127 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →