Inventor

YOKOYAMA HIROYASU

JP11 patents

⚠️ This page may combine multiple inventors who share the name “YOKOYAMA HIROYASU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IIZUKA YUKINORI

3 patents

US8266964B2Sep 18, 2012

Calibration of an ultrasonic flaw detector and quality control and production methods for a tubular body

IIZUKA YUKINORI6 citations70

US8393217B2Mar 12, 2013

Ultrasonic flaw detection apparatus and ultrasonic flaw detection method for pipe

IIZUKA YUKINORI2 citations60

US8578580B2Nov 12, 2013

Quality control method and manufacturing method for pipe

IIZUKA YUKINORI0 citations49

KENMOCHI KAZUHITO

3 patents

US9000320B2Apr 7, 2015

Method of manufacturing electric resistance welding pipe having excellent characterization of welded seam

KENMOCHI KAZUHITO3 citations56

US8296932B2Oct 30, 2012

Manufacturing equipment for electric resistance welding pipes having excellent characterization for welded seam

KENMOCHI KAZUHITO1 citations45

US8912462B2Dec 16, 2014

Method of manufacturing electric resistance welding pipes having excellent characterization of welded seams

KENMOCHI KAZUHITO0 citations44

NIPPON KOKAN KK

2 patents

US5759299AJun 2, 1998

Rail having excellent resistance to rolling fatigue damage and rail having excellent toughness and wear resistance and method of manufacturing the same

NIPPON KOKAN KK38 citations90

US6375763B1Apr 23, 2002

Pearlitic steel railroad rail

NIPPON KOKAN KK6 citations71

SEIKO EPSON CORP

1 patent

US6795203B1Sep 21, 2004

Image input/output apparatus

SEIKO EPSON CORP14 citations83

YOKOYAMA HIROYASU

1 patent

US8328957B2Dec 11, 2012

Electric resistance welded steel pipe with excellent weld toughness for line pipe

YOKOYAMA HIROYASU0 citations44

INOUE TOMOHIRO

1 patent

US9109884B2Aug 18, 2015

Method and equipment for manufacturing electric resistance welded steel pipe

INOUE TOMOHIRO0 citations37