Inventor · disambiguated record
Hiroyuki Nagayama
Also filed as: NAGAYAMA HIROYUKI
12 granted patents·5 pending applications·93 citations·filing 1994–2022
89Inventor score
Files withTOTO LTD4NISHIKAWA CO LTD3NIPPON STEEL & SUMITOMO METAL CORP2BRIDGESTONE CORP1MITSUBISHI ELECTRIC CORP1
Top patents by PatentIndex Score
17 records- 0182US5742123ASealing structure for light-emitting bulb assembly and method of manufacturing sameTOTO LTD·Filed 1997·Granted Apr 21, 1998·47 cites·37 claims
- 0274US2019040480A1Seamless steel pipe and method for producing sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2018·Application pending·0 cites
- 0368US2024353033A1Girth welded joint of steel pipeNIPPON STEEL CORP·Filed 2022·Application pending·0 cites
- 0466US9771628B2Duplex stainless steel and production method thereforMOTOYA DAISUKE·Filed 2012·Granted Sep 26, 2017·1 cites·9 claims
- 0565US10131962B2Seamless steel pipe and method for producing sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2013·Granted Nov 20, 2018·0 cites·6 claims
- 0664US9579870B2Welded joint of duplex stainless steelNAGAYAMA HIROYUKI·Filed 2012·Granted Feb 28, 2017·2 cites·32 claims
- 0763US5653924AMethods of manufacturing gradient function materialTOTO LTD·Filed 1994·Granted Aug 5, 1997·12 cites·23 claims
- 0858US5614044AMethod of manufacturing a laminated ceramic deviceMITSUI PETROCHEMICAL IND·Filed 1995·Granted Mar 25, 1997·17 cites·8 claims
- 0954US6913735B2Methane/methanol producing systemMITSUBISHI RES INST INC·Filed 2002·Granted Jul 5, 2005·5 cites·15 claims
- 1048USD1033985SCushion materialNISHIKAWA CO LTD·Filed 2022·Granted Jul 9, 2024·1 cites·1 claims
- 1147US2010258752A1Optical filter, optical filter for display, and display and plasma display panel provided with the optical filterBRIDGESTONE CORP·Filed 2008·Application pending·0 cites
- 1247US2024341495A1Cushion bodyNISHIKAWA CO LTD·Filed 2022·Application pending·0 cites
- 1345US6631475B1Microcomputer including system for controlling and maintaining the electric potential of an input terminal to improve interrupt response timeMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Oct 7, 2003·2 cites·7 claims
- 1444US2013315776A1Duplex stainless steelYAMADA KENTA·Filed 2012·Application pending·0 cites
- 1541US5972067AGradient function material seal cap for discharge lamp bulbTOTO LTD·Filed 1998·Granted Oct 26, 1999·5 cites·10 claims
- 1632USD1035329SCushion materialNISHIKAWA CO LTD·Filed 2022·Granted Jul 16, 2024·0 cites·1 claims
- 1730US5943546AGradient function materialTOTO LTD·Filed 1995·Granted Aug 24, 1999·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →