Inventor · disambiguated record
Koichi Maeda
Also filed as: MAEDA KOICHI
62 granted patents·8 pending applications·1,186 citations·filing 1977–2024
99Inventor score
Files withFURUKAWA ELECTRIC CO LTD15NIPPON SHEET GLASS CO LTD12TOKAI RUBBER IND LTD6NISSAN CHEMICAL IND LTD5FUJITSU LTD4
Top patents by PatentIndex Score
70 records- 0199US6524771B2Optical recording film and process for production thereofNIPPON SHEET GLASS CO LTD·Filed 2001·Granted Feb 25, 2003·156 cites·20 claims
- 0295US7510761B2Cutting tool made of surface-coated cemented carbide with hard coating layer exhibiting excellent wear resistance in high speed cutting operation of high hardness steelMITSUBISHI MATERIALS CORP·Filed 2006·Granted Mar 31, 2009·24 cites·1 claims
- 0393US11940649B2Optical fiber bundle structure, optical connector, optical fiber connection structure, and method of manufacturing optical fiber bundle structureFURUKAWA ELECTRIC CO LTD·Filed 2021·Granted Mar 26, 2024·2 cites·9 claims
- 0493US4944584APlastic multifocal point spherical lensNIPPON SHEET GLASS CO LTD·Filed 1989·Granted Jul 31, 1990·171 cites·2 claims
- 0590US5112722AMethod of producing light control plate which induces scattering of light at different anglesNIPPON SHEET GLASS CO LTD·Filed 1990·Granted May 12, 1992·78 cites·6 claims
- 0690US5108857ALight control sheetsSUMITOMO CHEMICAL CO·Filed 1990·Granted Apr 28, 1992·80 cites·11 claims
- 0789US6811581B2High-speed tool steel gear cutting tool and manufacturing method thereforMITSUBISHI MAT KOBE TOOLS CORP·Filed 2001·Granted Nov 2, 2004·21 cites·2 claims
- 0889US5100702AThin platinum film-forming compositionNISSAN CHEMICAL IND LTD·Filed 1991·Granted Mar 31, 1992·42 cites·4 claims
- 0988US6618515B2Connector with a connection detection function, optical fiber cable with a connection detection function, and equipment control mechanism for an optical equipmentMITSUBISHI CABLE IND LTD·Filed 2001·Granted Sep 9, 2003·37 cites·26 claims
- 1084US6854721B2Vibration-damping deviceTOKAI RUBBER IND LTD·Filed 2002·Granted Feb 15, 2005·25 cites·20 claims
- 1183US6978876B1Step for escalatorOTIS ELEVATOR CO·Filed 2000·Granted Dec 27, 2005·27 cites·9 claims
- 1281US9692201B2Optical-fiber-bundle structure, rare-earth-doped multi-core fiber, connection structure therefor, method for exciting rare-earth-doped multi-core fibers, and multi-core-optical-fiber amplifierFURUKAWA ELECTRIC CO LTD·Filed 2015·Granted Jun 27, 2017·3 cites·8 claims
- 1380US12222541B2Optical fiber bundle structure, optical connector, optical fiber connection structure, and method of manufacturing optical fiber bundle structureFURUKAWA ELECTRIC CO LTD·Filed 2024·Granted Feb 11, 2025·0 cites·9 claims
- 1480US12204141B2Optical fiber bundle structure, optical connector, optical fiber connection structure, and method of manufacturing optical fiber bundle structureFURUKAWA ELECTRIC CO LTD·Filed 2024·Granted Jan 21, 2025·0 cites·2 claims
- 1580US5942331AColored film-coated glass articleNIPPON SHEET GLASS CO LTD·Filed 1997·Granted Aug 24, 1999·42 cites·6 claims
- 1679US11073656B2Optical coupler and optical amplifierFURUKAWA ELECTRIC CO LTD·Filed 2020·Granted Jul 27, 2021·1 cites·11 claims
- 1778US4390187AVehicle leveling systemTOKICO LTD·Filed 1981·Granted Jun 28, 1983·35 cites·23 claims
- 1878US4134755AMethod for removing zinc type metals and compounds in dust recovery process in iron manufactureMAEDA KOICHI·Filed 1977·Granted Jan 16, 1979·18 cites·9 claims
- 1977US9722388B2Multi-core optical amplifying fiber device and multi-core optical fiber amplifierFURUKAWA ELECTRIC CO LTD·Filed 2015·Granted Aug 1, 2017·2 cites·12 claims
- 2076US9225141B2Multi-core amplification optical fiber and multi-core optical fiber amplifierFURUKAWA ELECTRIC CO LTD·Filed 2014·Granted Dec 29, 2015·3 cites·10 claims
- 2175US12455412B2Multicore fiberFURUKAWA ELECTRIC CO LTD·Filed 2023·Granted Oct 28, 2025·0 cites·7 claims
- 2274US4840705APapermaking methodNISSAN CHEMICAL IND LTD·Filed 1988·Granted Jun 20, 1989·20 cites·8 claims
- 2373US12481097B2Multicore fiber, manufacturing method for multicore fiber, multicore fiber preform, and manufacturing method for multicore fiber preformFURUKAWA ELECTRIC CO LTD·Filed 2023·Granted Nov 25, 2025·0 cites·10 claims
- 2472USRE45719ESurface-coated cutting toolMITSUBISHI MATERIALS CORP·Filed 2008·Granted Oct 6, 2015·1 cites·12 claims
- 2572US6311124B1Device, method and system for selecting emergency vehiclesFUJITSU LTD·Filed 2000·Granted Oct 30, 2001·8 cites·11 claims
- 2672US5976678AColored film-covered glass articlesNIPPON SHEET GLASS CO LTD·Filed 1997·Granted Nov 2, 1999·34 cites·20 claims
- 2772US4596320AHydraulic damperTOKICO LTD·Filed 1984·Granted Jun 24, 1986·27 cites·4 claims
- 2870US5876854AUV absorbing, colored film-covered glass articlesNIPPON SHEET GLASS CO LTD·Filed 1996·Granted Mar 2, 1999·33 cites·13 claims
- 2969US6479193B1Optical recording film and process for production thereofNIPPON SHEET GLASS CO LTD·Filed 1995·Granted Nov 12, 2002·26 cites·11 claims
- 3069US4467275ADC characteristics measuring systemHEWLETT PACKARD CO·Filed 1982·Granted Aug 21, 1984·18 cites·4 claims
- 3167US12399317B2Optical fiber bundle structure, optical fiber connection structure, and optical fiber bundle structure manufacturing methodFURUKAWA ELECTRIC CO LTD·Filed 2023·Granted Aug 26, 2025·0 cites·13 claims
- 3267US12248171B2Multi-core optical amplifying fiber, multi-core optical fiber amplifier, and optical communication systemFURUKAWA ELECTRIC CO LTD·Filed 2022·Granted Mar 11, 2025·0 cites·13 claims
- 3364US4354693AVehicle height adjusting deviceTOKICO LTD·Filed 1980·Granted Oct 19, 1982·26 cites·4 claims
- 3463US8354177B2Surface-coated cutting toolMITSUBISHI MATERIALS CORP·Filed 2008·Granted Jan 15, 2013·3 cites·12 claims
- 3563US6722481B2Vibration-damping deviceTOKAI RUBBER IND LTD·Filed 2002·Granted Apr 20, 2004·9 cites·19 claims
- 3663US5632358AElevator roller guideOTIS ELEVATOR CO·Filed 1995·Granted May 27, 1997·27 cites·7 claims
- 3763US2023123319A1Optical amplifying fiber, optical fiber amplifier, and optical communication systemFURUKAWA ELECTRIC CO LTD·Filed 2022·Application pending·0 cites
- 3862US4349735AVehicle height detecting deviceTOKICO LTD·Filed 1980·Granted Sep 14, 1982·23 cites·2 claims
- 3962US2023038133A1Optical fiber amplification system and optical communication systemFURUKAWA ELECTRIC CO LTD·Filed 2022·Application pending·0 cites
- 4062US2023006410A1Optical amplifying fiber, optical fiber amplifier, and optical communication systemFURUKAWA ELECTRIC CO LTD·Filed 2022·Application pending·0 cites
- 4161USD798345SRack for refrigerating machineMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Sep 26, 2017·10 cites·1 claims
- 4261US4929523ALight control sheetsSUMITOMO CHEMICAL CO·Filed 1987·Granted May 29, 1990·18 cites·10 claims
- 4360US7168692B2Fluid filled vibration damping device whose flexible layer having thick walled portionTOKAI RUBBER IND LTD·Filed 2004·Granted Jan 30, 2007·8 cites·4 claims
- 4459US6598718B2Vibration damping device having a flock coatingTOKAI RUBBER IND LTD·Filed 2002·Granted Jul 29, 2003·7 cites·14 claims
- 4559US6296928B1Hard coating coated member having excellent wear resistanceMMC KOBELCO TOOL CO LTD·Filed 1999·Granted Oct 2, 2001·25 cites·39 claims
- 4658US6863269B2Fluid filled vibration damping deviceTOKAI RUBBER IND LTD·Filed 2004·Granted Mar 8, 2005·7 cites·8 claims
- 4757US2004083161A1Electronic bidding proxy systemFiled 2002·Application pending·0 cites
- 4856US12001050B2Manufacturing method of multicore fiber preform, multicore fiber preform, and multicore fiberFURUKAWA ELECTRIC CO LTD·Filed 2021·Granted Jun 4, 2024·0 cites·2 claims
- 4956USD788189SRefrigerating machineMITSUBISHI ELECTRIC CORP·Filed 2015·Granted May 30, 2017·6 cites·1 claims
- 5054USD800802SRefrigerating machineMITSUBISHI ELECTRIC CORP·Filed 2017·Granted Oct 24, 2017·5 cites·1 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →