P

Inventor

IWAMOTO MICHIHIKO

US14 patents
⚠️ This page may combine multiple inventors who share the name “IWAMOTO MICHIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO METAL IND

5 patents
US7494159B2Feb 24, 2009

Threaded joint for steel pipes

SUMITOMO METAL IND28 citations92
US7823931B2Nov 2, 2010

Tubular threaded joint

SUMITOMO METAL IND23 citations89
US5402688AApr 4, 1995

Method and apparatus for determining the tightened condition of a pipe joint

SUMITOMO METAL IND67 citations89
US6286223B1Sep 11, 2001

Apparatus and method of measuring outer diameter of worked portion at pipe end

SUMITOMO METAL IND16 citations83
US7997627B2Aug 16, 2011

Threaded joint for steel pipes

SUMITOMO METAL IND5 citations61

NIPPON STEEL & SUMITOMO METAL CORP

3 patents
US11248725B2Feb 15, 2022

Threaded connection

NIPPON STEEL & SUMITOMO METAL CORP3 citations71
US11149882B2Oct 19, 2021

Threaded connection

NIPPON STEEL & SUMITOMO METAL CORP0 citations61
US10626345B2Apr 21, 2020

Threaded joint for pipes

NIPPON STEEL & SUMITOMO METAL CORP0 citations48

NIPPON STEEL CORP

2 patents
US11067205B2Jul 20, 2021

Threaded connection for steel pipe

NIPPON STEEL CORP6 citations69
US11703163B2Jul 18, 2023

Threaded connection for steel pipe

NIPPON STEEL CORP0 citations46

VALLOUREC OIL & GAS

1 patent
US5687999ANov 18, 1997

Threaded joint for tubes

VALLOUREC OIL & GAS82 citations90

GOTO KUNIO

1 patent
US9321982B2Apr 26, 2016

Threaded joint for pipes

GOTO KUNIO8 citations81

YAMAGUCHI SUGURU

1 patent
US9568125B2Feb 14, 2017

Threaded joint for steel pipes

YAMAGUCHI SUGURU8 citations77

BEIGNEUX SYLVAIN

1 patent
US9605781B2Mar 28, 2017

Threaded connection comprising at least one threaded element with an end lip for a metal tube

BEIGNEUX SYLVAIN5 citations65