Takuya Nagahama

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Threaded joint for pipes
- Patent number 9,657,873
- Issue date May 23, 2017
- JFE Steel Corporation
- Takamasa Kawai
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
THREADED JOINT FOR HEAVY-WALLED OIL COUNTRY TUBULAR GOODS
- Publication number 20160319966
- Publication date Nov 3, 2016
- JFE STEEL CORPORATION
- Takamasa Kawai
- E21 - EARTH DRILLING MINING
Information Patent Application
THREADED JOINT FOR PIPES
- Publication number 20140116560
- Publication date May 1, 2014
- JFE STEEL CORPORATION
- Takamasa Kawai
- E21 - EARTH DRILLING MINING