Inventor · disambiguated record
Tadashi Koyama
Also filed as: KOYAMA TADASHI
54 granted patents·5 pending applications·1,008 citations·filing 1985–2022
99Inventor score
Files withNIPPON SHEET GLASS CO LTD28KANEGAFUCHI CHEMICAL IND4KOYAMA TADASHI4CANON KK3TOYODA MACHINE WORKS LTD3
Top patents by PatentIndex Score
59 records- 0193US7007512B2Method for machining glass substrateNIPPON SHEET GLASS CO LTD·Filed 2001·Granted Mar 7, 2006·52 cites·12 claims
- 0293US6924457B2Laser processing method to a class substrate and an optical diffraction element obtained thereby, and a method for manufacturing optical elementsNIPPON SHEET GLASS CO LTD·Filed 2003·Granted Aug 2, 2005·40 cites·4 claims
- 0393US5020001ARobot controllerTOYODA MACHINE WORKS LTD·Filed 1989·Granted May 28, 1991·138 cites·4 claims
- 0491US8335470B2Communication apparatus and method for controlling the sameKOYAMA TADASHI·Filed 2008·Granted Dec 18, 2012·25 cites·12 claims
- 0591US5684071AAdditive for thermpolastic resins and flame retardant resin compositionKANEGAFUCHI CHEMICAL IND·Filed 1996·Granted Nov 4, 1997·71 cites·22 claims
- 0688US6174943B1Flame-retardant thermoplastic resin compositionKANEKA CORP·Filed 1997·Granted Jan 16, 2001·65 cites·11 claims
- 0784US7280075B2Wireless communication terminal deviceKYOCERA CORP·Filed 2006·Granted Oct 9, 2007·16 cites·17 claims
- 0883US6220058B1Method of changing the surface of a glass substrate containing silver, by using a laser beamNIPPON SHEET GLASS CO LTD·Filed 1997·Granted Apr 24, 2001·28 cites·8 claims
- 0982US6645603B2Laser processing method to a glass substrate and an optical diffraction element obtained thereby, and a method for manufacturing optical elementsNIPPON SHEET GLASS CO LTD·Filed 2001·Granted Nov 11, 2003·16 cites·1 claims
- 1080US5871570AFlame-retardant resin compositionKANEGAFUCHI CHEMICAL IND·Filed 1996·Granted Feb 16, 1999·40 cites·4 claims
- 1179US7765334B2Electronic apparatus for use with removable storage medium, control method therefor, and program for implementing the methodCANON KK·Filed 2005·Granted Jul 27, 2010·6 cites·12 claims
- 1278US6360041B1Optical demultiplexer and method of assembling optical demultiplexer in optical axis alignmentNIPPON SHEET GLASS CO LTD·Filed 2000·Granted Mar 19, 2002·18 cites·14 claims
- 1378US6143382AGlass substrate having fine holesNIPPON SHEET GLASS CO LTD·Filed 1998·Granted Nov 7, 2000·42 cites·21 claims
- 1477US6476975B1Mother glass composition for graded index lensNIPPON SHEET GLASS CO LTD·Filed 2000·Granted Nov 5, 2002·16 cites·8 claims
- 1577US6329451B2Flame retardant plastic resin compositionKANEKA CORP·Filed 1997·Granted Dec 11, 2001·31 cites·9 claims
- 1675US5998782AWater drop detector on transparent substrateNIPPON SHEET GLASS CO LTD·Filed 1998·Granted Dec 7, 1999·28 cites·2 claims
- 1774US6285037B1Liquid drop detection method and apparatus thereforNIPPON SHEET GLASS CO LTD·Filed 1999·Granted Sep 4, 2001·26 cites·3 claims
- 1873US6291797B1Laser machining method for glass substrate, diffraction type optical device fabricated by the machining method, and method of manufacturing optical deviceNIPPON SHEET GLASS CO LTD·Filed 1997·Granted Sep 18, 2001·27 cites·10 claims
- 1972US6397161B1Method for stabilizing output of rain sensor and protection method thereforNIPPON SHEET GLASS CO LTD·Filed 1998·Granted May 28, 2002·24 cites·4 claims
- 2070US5910256AMethod for manufacturing a diffraction type optical elementNIPPON SHEET GLASS CO LTD·Filed 1997·Granted Jun 8, 1999·28 cites·6 claims
- 2168US8576572B2Electronic deviceTANAKA TAKAHIRO·Filed 2011·Granted Nov 5, 2013·3 cites·10 claims
- 2267US5951731ALaser processing method to a micro lensNIPPON SHEET GLASS CO LTD·Filed 1997·Granted Sep 14, 1999·27 cites·11 claims
- 2365US6847770B2Lens function-including optical fiber and method of producing the sameNIPPON SHEET GLASS CO LTD·Filed 2001·Granted Jan 25, 2005·12 cites·11 claims
- 2465US6470712B2Method of changing the surface of a glass substrate containing silver, by using a laser beamNIPPON SHEET GLASS CO LTD·Filed 2001·Granted Oct 29, 2002·9 cites·11 claims
- 2564US8537055B2Portable electronic device and magnetic antenna circuitWAKU KENJI·Filed 2008·Granted Sep 17, 2013·5 cites·16 claims
- 2664US6616727B1Porous metal powderFUKUDA METAL FOIL POWDER·Filed 2000·Granted Sep 9, 2003·11 cites·4 claims
- 2764US6262389B1Laser-processable glass substrate and laser processing methodNIPPON SHEET GLASS CO LTD·Filed 1997·Granted Jul 17, 2001·22 cites·11 claims
- 2864US5991049ATransparent substrate having rain sensorNIPPON SHEET GLASS CO LTD·Filed 1998·Granted Nov 23, 1999·19 cites·2 claims
- 2963US6590722B1Optical elementNIPPON SHEET GLASS CO LTD·Filed 2000·Granted Jul 8, 2003·6 cites·9 claims
- 3061US8611958B2Portable wireless deviceKOYAMA TADASHI·Filed 2008·Granted Dec 17, 2013·4 cites·18 claims
- 3161US5886088APolyethylene terephthalate resin compositionKANEGAFUCHI CHEMICAL IND·Filed 1996·Granted Mar 23, 1999·17 cites·6 claims
- 3259US8854276B2Portable terminalKOYAMA TADASHI·Filed 2009·Granted Oct 7, 2014·3 cites·5 claims
- 3356US5508316AResin composition capable of exhibiting high melt viscoelasticity, aromatic polyester resin foamed body produced therefrom and process for producing the foamed bodyKANEGAFUCHI CHEMICAL IND·Filed 1995·Granted Apr 16, 1996·16 cites·7 claims
- 3455US6239444B1Water drop detector on transparent substrate and initiating method and output stabilizing method thereforNIPPON SHEET GLASS CO LTD·Filed 2000·Granted May 29, 2001·10 cites·1 claims
- 3555US5917603AWiper control apparatusNIPPON SHEET GLASS CO LTD·Filed 1998·Granted Jun 29, 1999·14 cites·6 claims
- 3654US11906077B2Filler pipe and method for manufacturing filler pipeYACHIYO IND CO LTD·Filed 2021·Granted Feb 20, 2024·0 cites·2 claims
- 3754US7524783B2Glass for laser processingNIPPON SHEET GLASS CO LTD·Filed 2002·Granted Apr 28, 2009·2 cites·2 claims
- 3854US6019606ARobot teaching machineTOYODA MACHINE WORKS LTD·Filed 1997·Granted Feb 1, 2000·23 cites·6 claims
- 3954US5279868AMethod of preparing ultrafine particle dispersion materialNIPPON SHEET GLASS CO LTD·Filed 1992·Granted Jan 18, 1994·16 cites·8 claims
- 4051US6239570B1Wiper controller apparatus of water drop sensitive typeNIPPON SHEET GLASS CO LTD·Filed 1998·Granted May 29, 2001·11 cites·1 claims
- 4150US6147753AMultilayer, cushioned liquid drop detectorNIPPON SHEET GLASS CO LTD·Filed 1999·Granted Nov 14, 2000·11 cites·16 claims
- 4249US12115923B2Earth structure for filler pipeYACHIYO IND CO LTD·Filed 2022·Granted Oct 15, 2024·0 cites·9 claims
- 4349US10483780B2Electronic apparatus and control method for the sameCANON KK·Filed 2017·Granted Nov 19, 2019·0 cites·12 claims
- 4449US8363415B2Detachable network communication device, electronic device and communication deviceKYOCERA CORP·Filed 2009·Granted Jan 29, 2013·0 cites·6 claims
- 4547US6984436B2Graded material and method for synthesis thereof and method for processing thereofNIPPON SHEET GLASS CO LTD·Filed 2001·Granted Jan 10, 2006·1 cites·3 claims
- 4644US4580085AFeed control system with a safety deviceTOYODA MACHINE WORKS LTD·Filed 1985·Granted Apr 1, 1986·16 cites·5 claims
- 4743US8779982B2System for reducing antenna gain deteriorationWAKU KENJI·Filed 2008·Granted Jul 15, 2014·0 cites·7 claims
- 4843US8138979B2Portable wireless apparatusKOYAMA TADASHI·Filed 2007·Granted Mar 20, 2012·0 cites·5 claims
- 4941US10193543B2Electronic device and method of controlling switching elementsCANON KK·Filed 2016·Granted Jan 29, 2019·0 cites·20 claims
- 5041US8489109B2Portable wireless deviceWAKU KENJI·Filed 2008·Granted Jul 16, 2013·0 cites·11 claims
Showing the top 50 of 59 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →