Inventor · disambiguated record
Masahiro Aoki
Also filed as: AOKI MASAHIRO
100 granted patents·24 pending applications·1,674 citations·filing 1975–2025
99Inventor score
Top patents by PatentIndex Score
124 records- 0196US5348997ACrosslinking aqueous pigment dispersionMITSUBISHI YUKA BADISCHE·Filed 1993·Granted Sep 20, 1994·73 cites·14 claims
- 0294US7970041B2Semiconductor laser apparatusHITACHI LTD·Filed 2009·Granted Jun 28, 2011·24 cites·8 claims
- 0394US6757499B1Optical transmitter and optical signal transmitterHITACHI LTD·Filed 2000·Granted Jun 29, 2004·69 cites·18 claims
- 0493US6700910B1Wavelength tunable laser and optical deviceHITACHI LTD·Filed 2000·Granted Mar 2, 2004·54 cites·12 claims
- 0593US5784183ASemiconductor optical device and method for fabricating the sameHITACHI LTD·Filed 1996·Granted Jul 21, 1998·103 cites·19 claims
- 0691US8036533B2Optical transmitter/receiver moduleHITACHI LTD·Filed 2008·Granted Oct 11, 2011·29 cites·12 claims
- 0790US4562346AApparatus and method for detecting focus condition of imaging optical system employing both sharpness detection and lateral shift detectionOLYMPUS OPTICAL CO·Filed 1983·Granted Dec 31, 1985·26 cites·16 claims
- 0888US8909021B2Semiconductor optical deviceSAITO SHINICHI·Filed 2010·Granted Dec 9, 2014·6 cites·12 claims
- 0988US7760782B2Distributed bragg reflector type directly modulated laser and distributed feed back type directly modulated laserOPNEXT JAPAN INC·Filed 2006·Granted Jul 20, 2010·11 cites·17 claims
- 1088US5561682ASemiconductor optical device and method for fabricating the sameHITACHI LTD·Filed 1995·Granted Oct 1, 1996·68 cites·20 claims
- 1187US6546034B2Semiconductor laser device, semiconductor laser array device and optical fiber transmission systemHITACHI LTD·Filed 2000·Granted Apr 8, 2003·28 cites·13 claims
- 1287US5737474ASemiconductor optical deviceHITACHI LTD·Filed 1995·Granted Apr 7, 1998·80 cites·20 claims
- 1385US7215469B2Confocal microscopeOLYMPUS OPTICAL CO·Filed 2006·Granted May 8, 2007·12 cites·5 claims
- 1485US6797682B2Resist stripperTOSOH CORP·Filed 2001·Granted Sep 28, 2004·31 cites·14 claims
- 1584US8451872B2Wavelength tunable filter and wavelength tunable laser moduleARIMOTO HIDEO·Filed 2012·Granted May 28, 2013·6 cites·16 claims
- 1684US7340142B1Integrated optoelectronic device and method of fabricating the sameOPNEXT JAPAN INC·Filed 2007·Granted Mar 4, 2008·8 cites·14 claims
- 1784US6821801B1Manufacturing method of semiconductor laser diodeHITACHI LTD·Filed 2004·Granted Nov 23, 2004·20 cites·15 claims
- 1884US5432229AAqueous crosslinkable resin compositionMITSUBISHI YUKA BADISCHE·Filed 1994·Granted Jul 11, 1995·45 cites·11 claims
- 1982US6678479B1Semiconductor electro-absorption optical modulator integrated light emission element light emission element module and optical transmission systemOPNEXT JAPAN INC·Filed 2000·Granted Jan 13, 2004·22 cites·16 claims
- 2082US5574289ASemiconductor optical integrated device and light receiver using said deviceHITACHI LTD·Filed 1993·Granted Nov 12, 1996·60 cites·23 claims
- 2181US7365344B2Scanning fluorescent microscopeOLYMPUS CORP·Filed 2005·Granted Apr 29, 2008·7 cites·18 claims
- 2280US7636378B2Semiconductor laser diodeOPNEXT JAPAN INC·Filed 2008·Granted Dec 22, 2009·6 cites·18 claims
- 2379US8179931B2Wavelength tunable filter and wavelength tunable laser moduleARIMOTO HIDEO·Filed 2009·Granted May 15, 2012·5 cites·7 claims
- 2479US7329894B2Semiconductor laser device and semiconductor optical modulatorOPNEXT JAPAN INC·Filed 2005·Granted Feb 12, 2008·6 cites·22 claims
- 2578US7603043B2Light receiving element circuit and optical disk driveTOSHIBA KK·Filed 2006·Granted Oct 13, 2009·4 cites·11 claims
- 2677US6428171B1Height measuring apparatusOLYMPUS OPTICAL CO·Filed 1998·Granted Aug 6, 2002·45 cites·24 claims
- 2777US6423160B1Stainless steel plate for shadow mask method for production thereof and shadow maskMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jul 23, 2002·14 cites·12 claims
- 2877US5008329AProcess for producing aqueous copolymer dispersion from a vinyl monomer mixtureMITSUBISHI YUKA BADISCHE·Filed 1989·Granted Apr 16, 1991·27 cites·3 claims
- 2977US4957677AProcess for producing composite laminate comprising insert part and injection-molded partMITSUBISHI YUKA BADISCHE·Filed 1988·Granted Sep 18, 1990·31 cites·7 claims
- 3077US4500189AApparatus for detecting the focus condition of an imaging lensOLYMPUS OPTICAL CO·Filed 1983·Granted Feb 19, 1985·30 cites·9 claims
- 3176US7502302B2Optical recording and reading equipmentHITACHI LTD·Filed 2005·Granted Mar 10, 2009·2 cites·5 claims
- 3276US4540881AMethod of detecting focusing conditionsOLYMPUS OPTICAL CO·Filed 1982·Granted Sep 10, 1985·31 cites·9 claims
- 3375US8680553B2Light-emitting device, light-receiving device and method of manufacturing the sameSAITO SHINICHI·Filed 2009·Granted Mar 25, 2014·3 cites·10 claims
- 3475US5764842ASemiconductor guided-wave optical device and method of fabricating thereofHITACHI LTD·Filed 1996·Granted Jun 9, 1998·44 cites·15 claims
- 3575US5472996AAqueous dispersed resin compositionMITSUBISHI YUKA BADISCHE·Filed 1994·Granted Dec 5, 1995·29 cites·15 claims
- 3675US4070694APicture image information band compression and transmission systemOLYMPUS OPTICAL CO·Filed 1975·Granted Jan 24, 1978·19 cites·10 claims
- 3775US2025351830A1Article having zinc oxide coating film and method of manufacturing the same, and deodorizing methodTOSOH FINECHEM CORP·Filed 2023·Application pending·0 cites
- 3874US7933304B2Semiconductor laser diode and optical module employing the sameOPNEXT JAPAN INC·Filed 2007·Granted Apr 26, 2011·4 cites·5 claims
- 3974US6606443B2Optical transmission deviceHITACHI LTD·Filed 2002·Granted Aug 12, 2003·11 cites·5 claims
- 4074US5543353AMethod of manufacturing a semiconductor photonic integrated circuitHITACHI LTD·Filed 1994·Granted Aug 6, 1996·32 cites·6 claims
- 4174US4492449AApparatus and technique for detecting and controlling the focusing of an optical system by image sharpness and lateral shift techniquesOLYMPUS OPTICAL CO·Filed 1983·Granted Jan 8, 1985·28 cites·17 claims
- 4273US4562345AMethod and apparatus for detecting focus conditions of a photographic optical systemTOYOTA MOTOR CO LTD·Filed 1982·Granted Dec 31, 1985·11 cites·11 claims
- 4373US2025141044A1Insulating film for secondary battery and method for producing itTOSOH FINECHEM CORP·Filed 2023·Application pending·0 cites
- 4472US6236771B1Optical transmission apparatusHITACHI LTD·Filed 1999·Granted May 22, 2001·41 cites·15 claims
- 4571US7684606B2Image processing apparatus which removes image data of overlapping cellsOLYMPUS CORP·Filed 2005·Granted Mar 23, 2010·8 cites·7 claims
- 4671US4959428AEmulsion polymerization processMITSUBISHI YUKA BADISCHE·Filed 1988·Granted Sep 25, 1990·19 cites·9 claims
- 4771US2025351273A1Printed circuit board and air conditioner including the sameDAIKIN IND LTD·Filed 2025·Application pending·0 cites
- 4870US9472829B2Method for stabilizing LiPF6, electrolyte solution for nonaqueous secondary batteries having excellent thermal stability, and nonaqueous secondary battery having excellent thermal stabilityTOSOH F-TECH INC·Filed 2013·Granted Oct 18, 2016·1 cites·11 claims
- 4970US4483602AApparatus for detecting a focusing condition of an objective lensOLYMPUS OPTICAL CO·Filed 1982·Granted Nov 20, 1984·24 cites·19 claims
- 5069US8449160B2Multi-wavelength light emitting deviceTANAKA KENICHI·Filed 2010·Granted May 28, 2013·2 cites·9 claims
Showing the top 50 of 124 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Masahiro Aoki files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →