Inventor · disambiguated record
Tetsuya Hayashi
Also filed as: HAYASHI TETSUYA · MATSUDA YOSHIO
251 granted patents·55 pending applications·2,344 citations·filing 1988–2025
99Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES74NISSAN MOTOR68CASIO COMPUTER CO LTD18SHARP KK17HAYASHI TETSUYA16
Top patents by PatentIndex Score
306 records- 0198US7758998B2Lithium ion secondary batteryPANASONIC CORP·Filed 2007·Granted Jul 20, 2010·54 cites·13 claims
- 0298US7754377B2Lithium ion secondary batteryPANASONIC CORP·Filed 2007·Granted Jul 13, 2010·48 cites·11 claims
- 0398US7575606B2Method for producing lithium ion secondary batteryPANASONIC CORP·Filed 2005·Granted Aug 18, 2009·49 cites·9 claims
- 0498US7422825B2Nonaqueous electrolyte secondary batteryMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Sep 9, 2008·67 cites·2 claims
- 0598US7385631B2Camera device and method and program for starting the camera deviceCASIO COMPUTER CO LTD·Filed 2004·Granted Jun 10, 2008·150 cites·9 claims
- 0697US11561340B2Multi-core optical fiber and multi-core optical fiber cableSUMITOMO ELECTRIC INDUSTRIES·Filed 2021·Granted Jan 24, 2023·4 cites·10 claims
- 0797US7638230B2Lithium ion secondary batteryPANASONIC CORP·Filed 2005·Granted Dec 29, 2009·48 cites·14 claims
- 0897US7396612B2Lithium ion secondary batteryMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jul 8, 2008·81 cites·17 claims
- 0997US7348098B2Flat prismatic batteryMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Mar 25, 2008·128 cites·4 claims
- 1096US8406595B2Multi-core fiberHAYASHI TETSUYA·Filed 2011·Granted Mar 26, 2013·37 cites·17 claims
- 1196US7816038B2Lithium ion secondary battery and method for producing the samePANASONIC CORP·Filed 2005·Granted Oct 19, 2010·45 cites·4 claims
- 1295US11256026B2Multicore optical fiber and multicore optical fiber cableSUMITOMO ELECTRIC INDUSTRIES·Filed 2020·Granted Feb 22, 2022·4 cites·11 claims
- 1394US11754466B2Mode-dependent loss measurement device and mode-dependent loss measuring methodSUMITOMO ELECTRIC INDUSTRIES·Filed 2021·Granted Sep 12, 2023·2 cites·13 claims
- 1494US9933331B2Optical fiber leakage loss measurement methodSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Apr 3, 2018·7 cites·6 claims
- 1594US9726816B2Multi-core optical fiber, optical cable, and optical connectorSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Aug 8, 2017·11 cites·14 claims
- 1694US7605017B2Method of manufacturing a semiconductor device and products made therebyNISSAN MOTOR·Filed 2007·Granted Oct 20, 2009·29 cites·14 claims
- 1794US7115339B2Lithium ion secondary batteryMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Oct 3, 2006·58 cites·6 claims
- 1893US11604312B2Multi-core optical fiber and multi-core optical fiber cableSUMITOMO ELECTRIC INDUSTRIES·Filed 2021·Granted Mar 14, 2023·2 cites·17 claims
- 1993US11480727B2Multi-core optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2020·Granted Oct 25, 2022·3 cites·17 claims
- 2093US10203265B2Optical fiber evaluation method and optical fiber evaluation deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Feb 12, 2019·7 cites·13 claims
- 2193US7781786B2Semiconductor device having a heterojunction diode and manufacturing method thereofNISSAN MOTOR·Filed 2007·Granted Aug 24, 2010·27 cites·15 claims
- 2293US7378325B2Semiconductor device and manufacturing method thereofNISSAN MOTOR·Filed 2006·Granted May 27, 2008·23 cites·8 claims
- 2393US5510572AApparatus for analyzing and harmonizing melody using results of melody analysisCASIO COMPUTER CO LTD·Filed 1993·Granted Apr 23, 1996·87 cites·14 claims
- 2492US10411243B2Rolled-type batteryPANASONIC IP MAN CO LTD·Filed 2015·Granted Sep 10, 2019·5 cites·20 claims
- 2592US10139559B2Multi-core optical fiber, optical cable, and optical connectorSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Nov 27, 2018·7 cites·1 claims
- 2692US7745042B2Lithium ion secondary batteryPANASONIC CORP·Filed 2004·Granted Jun 29, 2010·50 cites·16 claims
- 2791US9143692B2Imaging apparatus which performs development processing on captured imageCASIO COMPUTER CO LTD·Filed 2014·Granted Sep 22, 2015·11 cites·18 claims
- 2890US9164228B2Multi-core optical fiber, multi-core optical fiber cable, and multi-core optical fiber transmission systemSUMITOMO ELECTRIC INDUSTRIES·Filed 2013·Granted Oct 20, 2015·13 cites·28 claims
- 2990US8923668B2Receiving method and separating apparatus for light outputted from multi-core optical fiberHAYASHI TETSUYA·Filed 2012·Granted Dec 30, 2014·9 cites·8 claims
- 3090US7671383B2Semiconductor device and method of producing the sameNISSAN MOTOR·Filed 2007·Granted Mar 2, 2010·15 cites·14 claims
- 3190US7436004B2Semiconductor deviceNISSAN MOTOR·Filed 2005·Granted Oct 14, 2008·19 cites·14 claims
- 3289US10031285B2Multicore optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Jul 24, 2018·6 cites·8 claims
- 3389US8861914B2Optical fiber cableSUMITOMO ELECTRIC INDUSTRIES·Filed 2013·Granted Oct 14, 2014·9 cites·4 claims
- 3489US7714352B2Hetero junction semiconductor deviceNISSAN MOTOR·Filed 2007·Granted May 11, 2010·17 cites·13 claims
- 3588US9482814B2Multicore optical fiber and optical moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Nov 1, 2016·6 cites·20 claims
- 3688US9172053B2Organic molecular memory and method of manufacturing the sameTOSHIBA KK·Filed 2014·Granted Oct 27, 2015·5 cites·27 claims
- 3788US8478098B2Optical fiber cableHAYASHI TETSUYA·Filed 2011·Granted Jul 2, 2013·9 cites·20 claims
- 3887US9952382B2Multi-core optical fiber, multi-core optical fiber cable, and optical fiber transmission systemSUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted Apr 24, 2018·5 cites·13 claims
- 3987US9031368B2Multi-core optical fiber, multi-core optical fiber cable, and multi-core optical fiber transmission systemSUMITOMO ELECTRIC INDUSTRIES·Filed 2013·Granted May 12, 2015·9 cites·18 claims
- 4087US7061027B2Semiconductor device with heterojunctionNISSAN MOTOR·Filed 2005·Granted Jun 13, 2006·14 cites·18 claims
- 4186US9354387B2Optical waveguide and optical fiber transmission systemSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted May 31, 2016·5 cites·14 claims
- 4286US7534361B2Methods for making laminated member for circuit board, making circuit board and laminating flexible filmTORAY INDUSTRIES·Filed 2006·Granted May 19, 2009·8 cites·6 claims
- 4386US7033083B2Support structure carrying thrust load of transmission, method of manufacturing thereof and thrust needle roller bearingNTN TOYO BEARING CO LTD·Filed 2003·Granted Apr 25, 2006·19 cites·9 claims
- 4485US11022523B2Mode-dependent loss measurement method and measurement deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2018·Granted Jun 1, 2021·4 cites·11 claims
- 4585US10585234B2Coupled multicore optical fiber and optical transmission system including sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2018·Granted Mar 10, 2020·4 cites·8 claims
- 4685US10031284B2Multi-core optical fiber, optical cable, and optical connectorSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Jul 24, 2018·3 cites·14 claims
- 4785US8039044B2Method for forming electrode for batteryPANASONIC CORP·Filed 2007·Granted Oct 18, 2011·6 cites·4 claims
- 4885US7540079B2Laminated member for circuit board, method and apparatus for manufacturing of circuit boardTORAY INDUSTRIES·Filed 2004·Granted Jun 2, 2009·39 cites·11 claims
- 4985US5372775AMethod of preparing particle composite alloy having an aluminum matrixSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Dec 13, 1994·36 cites·9 claims
- 5085US5149091AGolf club headYOKOHAMA RUBBER CO LTD·Filed 1991·Granted Sep 22, 1992·61 cites·10 claims
Showing the top 50 of 306 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Tetsuya Hayashi 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 →