Inventor · disambiguated record
Masaaki Hirano
Also filed as: HIRANO MASAAKI
90 granted patents·30 pending applications·510 citations·filing 1998–2024
99Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES77HIRANO MASAAKI11HITACHI HIGH TECH CORP7KAWASAKI HEAVY IND LTD5RENESAS ELECTRONICS CORP4
Top patents by PatentIndex Score
120 records- 0196US11084121B2Double-acting friction stir spot welding method and apparatusKAWASAKI HEAVY IND LTD·Filed 2020·Granted Aug 10, 2021·4 cites·20 claims
- 0296US9097834B2Optical fiber and optical fiber preformHIRANO MASAAKI·Filed 2012·Granted Aug 4, 2015·21 cites·14 claims
- 0395US9512033B2Optical fiber preformSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Dec 6, 2016·10 cites·8 claims
- 0494US11396060B2Holding jig and holding jig set for double-acting friction stir spot welding, double-acting friction stir spot welding device, and double-acting friction stir spot welding methodKAWASAKI HEAVY IND LTD·Filed 2020·Granted Jul 26, 2022·3 cites·7 claims
- 0594US6658190B2Optical fiber and optical communication system including the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2000·Granted Dec 2, 2003·70 cites·22 claims
- 0693US11179799B2Clamp member for double-acting friction stir spot welding device, double-acting friction stir spot welding device, and double-acting friction stir spot welding methodKAWASAKI HEAVY IND LTD·Filed 2020·Granted Nov 23, 2021·3 cites·14 claims
- 0793US9036972B2Optical fiber preform, method for producing optical fiber, and optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2012·Granted May 19, 2015·8 cites·21 claims
- 0891US7548679B2Container for accommodating optical fiber coil and optical fiber module having the containerSUMITOMO ELECTRIC INDUSTRIES·Filed 2007·Granted Jun 16, 2009·43 cites·10 claims
- 0988US8839646B2Method for producing optical fiber preformHARUNA TETSUYA·Filed 2012·Granted Sep 23, 2014·8 cites·7 claims
- 1088US6661958B2Optical fiber and nonlinear optical fiber, optical amplifier and wavelength converter using the same, and method of making optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2001·Granted Dec 9, 2003·37 cites·24 claims
- 1187US12370878B2Fluid-filled vibration damping deviceSUMITOMO RIKO CO LTD·Filed 2022·Granted Jul 29, 2025·1 cites·19 claims
- 1287US9322990B2Optical fiber preformSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Apr 26, 2016·3 cites·9 claims
- 1387US8655133B2Optical fiber and optical communication system including sameYAMAMOTO YOSHINORI·Filed 2011·Granted Feb 18, 2014·9 cites·13 claims
- 1487US6477306B2Dispersion-compensating optical fiber, and, optical transmission line and dispersion-compensating module respectively including the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2000·Granted Nov 5, 2002·34 cites·31 claims
- 1585US9932265B2Method of making an optical fiber containing an alkali metal in the coreSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Apr 3, 2018·2 cites·6 claims
- 1685US9927453B2Dispensing device and dispensing methodHITACHI HIGH TECH CORP·Filed 2015·Granted Mar 27, 2018·3 cites·4 claims
- 1785US8731357B2Optical fiberHIRANO MASAAKI·Filed 2012·Granted May 20, 2014·7 cites·21 claims
- 1885US6400877B1Negative-dispersion optical fiber and optical transmission line incorporating the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2001·Granted Jun 4, 2002·29 cites·26 claims
- 1984US9335465B2Optical fiber and optical fiber preformSUMITOMO ELECTRIC INDUSTRIES·Filed 2013·Granted May 10, 2016·5 cites·10 claims
- 2084US9139466B2Optical fiber preform, optical fiber, and method of manufacturing optical fiber preformHIRANO MASAAKI·Filed 2012·Granted Sep 22, 2015·8 cites·10 claims
- 2183US11491576B2Refill friction stir spot welding method, pressing tool set, and refill friction stir spot welding deviceKAWASAKI HEAVY IND LTD·Filed 2018·Granted Nov 8, 2022·2 cites·12 claims
- 2283US9575245B2Optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Feb 21, 2017·4 cites·18 claims
- 2383US7233727B2Optical fiber and optical device using the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2006·Granted Jun 19, 2007·12 cites·18 claims
- 2482US9527765B2Optical fiber manufacturing method and optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2013·Granted Dec 27, 2016·4 cites·4 claims
- 2579US9411095B2Optical-fiber preform and method for manufacturing optical-fiber preformSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted Aug 9, 2016·2 cites·9 claims
- 2677US12059742B2Holding jig and holding jig set for double-acting friction stir spot welding, double-acting friction stir spot welding device, and double-acting friction stir spot welding methodKAWASAKI HEAVY IND LTD·Filed 2022·Granted Aug 13, 2024·0 cites·8 claims
- 2777US9340444B2Optical fiber preform manufacturing method, optical fiber preform, and optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2012·Granted May 17, 2016·2 cites·8 claims
- 2877US7637125B2Glass tube processing method, apparatus and glass tubeSUMITOMO ELECTRIC INDUSTRIES·Filed 2004·Granted Dec 29, 2009·7 cites·7 claims
- 2976US7317856B2Method of making optical fiber and optical fiber made by the methodSUMITOMO ELECTRIC INDUSTRIES·Filed 2006·Granted Jan 8, 2008·3 cites·9 claims
- 3075US7891217B2Method of producing an optical fiber preformSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Feb 22, 2011·2 cites·3 claims
- 3174US9588286B2Optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted Mar 7, 2017·4 cites·2 claims
- 3273US11345627B2Method of manufacturing optical fiber preform and optical fiber preformSUMITOMO ELECTRIC INDUSTRIES·Filed 2019·Granted May 31, 2022·0 cites·5 claims
- 3373US7286740B2Optical fiber, optical transmission line, optical module and optical transmission systemSUMITOMO ELECTRIC INDUSTRIES·Filed 2006·Granted Oct 23, 2007·2 cites·27 claims
- 3473US7045737B2Glass-processing method and glass-processing apparatus for the methodSUMITOMO ELECTRIC INDUSTRIES·Filed 2004·Granted May 16, 2006·6 cites·14 claims
- 3573US6819477B2Raman amplifier module and optical transmission system using the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2001·Granted Nov 16, 2004·14 cites·14 claims
- 3672US8024945B2Glass tube processing apparatusSUMITOMO ELECTRIC INDUSTRIES·Filed 2009·Granted Sep 27, 2011·1 cites·1 claims
- 3772US7483614B2Optical fiber and optical device using the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2006·Granted Jan 27, 2009·5 cites·12 claims
- 3871US10670478B2Temperature measurement circuit and method, and microcomputer unitRENESAS ELECTRONICS CORP·Filed 2017·Granted Jun 2, 2020·1 cites·17 claims
- 3971US7068901B2Optical fiber preform producing method, optical fiber production method, and optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2003·Granted Jun 27, 2006·6 cites·27 claims
- 4071US6522821B1Dispersion-compensating optical fiber and optical transmission system including the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2000·Granted Feb 18, 2003·13 cites·11 claims
- 4170US8015845B2Glass tube processing methodSUMITOMO ELECTRIC INDUSTRIES·Filed 2010·Granted Sep 13, 2011·1 cites·12 claims
- 4270US7376316B2Manufacturing method of optical fiber preform, manufacturing method of optical fiber, and optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2004·Granted May 20, 2008·5 cites·20 claims
- 4370US6987917B2Optical fiber preform producing method, optical fiber preform, and optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2001·Granted Jan 17, 2006·5 cites·16 claims
- 4469US9229160B2Optical fiber preform, method for producing optical fiber, and optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted Jan 5, 2016·1 cites·10 claims
- 4569US8351783B2Apparatus and method for measuring chromatic dispersionSUMITOMO ELECTRIC INDUSTRIES·Filed 2009·Granted Jan 8, 2013·5 cites·8 claims
- 4669US8291124B2Semiconductor device and data processing system having a reduced number of terminals allocated for externally accessed addressHIRANO MASAAKI·Filed 2011·Granted Oct 16, 2012·2 cites·15 claims
- 4769US7486862B2Optical fiber and manufacturing method thereofSUMITOMO ELECTRIC INDUSTRIES·Filed 2004·Granted Feb 3, 2009·12 cites·17 claims
- 4869US7010203B2Optical fiber manufacturing method and optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2003·Granted Mar 7, 2006·5 cites·16 claims
- 4968US9817184B2Optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Nov 14, 2017·1 cites·10 claims
- 5067US7532797B2Optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2006·Granted May 12, 2009·4 cites·9 claims
Showing the top 50 of 120 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →