Makio Gunji

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electric resistance welded steel pipe or tube and production method...
- Patent number 11,512,361
- Issue date Nov 29, 2022
- JFE Steel Corporation
- Yoshikazu Kawabata
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Seamless steel tube for fuel injection
- Patent number 10,308,994
- Issue date Jun 4, 2019
- JFE Steel Corporation
- Yoshikazu Kawabata
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
High-tensile strength welded steel tube for structural parts of aut...
- Patent number 7,887,649
- Issue date Feb 15, 2011
- JFE Steel Corporation
- Shunsuke Toyoda
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC RESISTANCE WELDED STEEL PIPE OR TUBE
- Publication number 20230079323
- Publication date Mar 16, 2023
- JFE STEEL CORPORATION
- Yoshikazu KAWABATA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ELECTRIC RESISTANCE WELDED STEEL PIPE OR TUBE AND PRODUCTION METHOD...
- Publication number 20200332381
- Publication date Oct 22, 2020
- JFE STEEL CORPORATION
- Yoshikazu KAWABATA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
SEAMLESS STEEL TUBE FOR FUEL INJECTION
- Publication number 20170022581
- Publication date Jan 26, 2017
- JFE STEEL CORPORATION
- Yoshikazu Kawabata
- C21 - METALLURGY OF IRON
Information Patent Application
ELECTRIC RESISTANCE WELDED STEEL PIPE WITH EXCELLENT TORSION FATIGU...
- Publication number 20130126036
- Publication date May 23, 2013
- JFE STEEL CORPORATION
- Masatoshi Aratani
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-TENSILE STRENGTH WELDED STEEL TUBE FOR STRUCTURAL PARTS OF AUT...
- Publication number 20090277544
- Publication date Nov 12, 2009
- JFE Steel Corporation, a corporation of Japan
- Shunsuke Toyoda
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...