Inventor · disambiguated record
Hiroyasu Yokoyama
Also filed as: YOKOYAMA HIROYASU
11 granted patents·70 citations·filing 1996–2008
87Inventor score
Top patents by PatentIndex Score
11 records- 0188US5759299ARail having excellent resistance to rolling fatigue damage and rail having excellent toughness and wear resistance and method of manufacturing the sameNIPPON KOKAN KK·Filed 1996·Granted Jun 2, 1998·38 cites·30 claims
- 0277US8266964B2Calibration of an ultrasonic flaw detector and quality control and production methods for a tubular bodyIIZUKA YUKINORI·Filed 2007·Granted Sep 18, 2012·6 cites·9 claims
- 0374US6795203B1Image input/output apparatusSEIKO EPSON CORP·Filed 2000·Granted Sep 21, 2004·14 cites·20 claims
- 0471US9000320B2Method of manufacturing electric resistance welding pipe having excellent characterization of welded seamKENMOCHI KAZUHITO·Filed 2006·Granted Apr 7, 2015·3 cites·7 claims
- 0567US8393217B2Ultrasonic flaw detection apparatus and ultrasonic flaw detection method for pipeIIZUKA YUKINORI·Filed 2007·Granted Mar 12, 2013·2 cites·23 claims
- 0665US6375763B1Pearlitic steel railroad railNIPPON KOKAN KK·Filed 2000·Granted Apr 23, 2002·6 cites·20 claims
- 0758US8296932B2Manufacturing equipment for electric resistance welding pipes having excellent characterization for welded seamKENMOCHI KAZUHITO·Filed 2006·Granted Oct 30, 2012·1 cites·6 claims
- 0852US8578580B2Quality control method and manufacturing method for pipeIIZUKA YUKINORI·Filed 2007·Granted Nov 12, 2013·0 cites·14 claims
- 0948US9109884B2Method and equipment for manufacturing electric resistance welded steel pipeINOUE TOMOHIRO·Filed 2008·Granted Aug 18, 2015·0 cites·4 claims
- 1045US8328957B2Electric resistance welded steel pipe with excellent weld toughness for line pipeYOKOYAMA HIROYASU·Filed 2007·Granted Dec 11, 2012·0 cites·18 claims
- 1144US8912462B2Method of manufacturing electric resistance welding pipes having excellent characterization of welded seamsKENMOCHI KAZUHITO·Filed 2006·Granted Dec 16, 2014·0 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →