Kazutoshi Ishikawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Tube expanding method for manufacturing metal tube
- Patent number 9,707,614
- Issue date Jul 18, 2017
- JFE Steel Corporation
- Tatsuro Katsumura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for manufacturing heavy wall steel pipe
- Patent number 9,506,132
- Issue date Nov 29, 2016
- JFE Steel Corporation
- Tatsuro Katsumura
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC-RESISTANCE-WELDED STEEL PIPE OR TUBE FOR HOLLOW STABILIZER
- Publication number 20220307117
- Publication date Sep 29, 2022
- JFE STEEL CORPORATION
- Masatoshi ARATANI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD FOR MANUFACTURING HEAVY WALL STEEL PIPE
- Publication number 20150247227
- Publication date Sep 3, 2015
- JFE STEEL CORPORATION
- Tatsuro Katsumura
- C21 - METALLURGY OF IRON
Information Patent Application
TUBE EXPANDING METHOD FOR MANUFACTURING METAL TUBE
- Publication number 20150114073
- Publication date Apr 30, 2015
- JFE STEEL CORPORATION
- Tatsuro Katsumura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HIGH-STRENGTH SEAMLESS STAINLESS STEEL TUBE FOR OIL COUNTRY TUBULAR...
- Publication number 20150101711
- Publication date Apr 16, 2015
- JFE STEEL CORPORATION
- Yukio Miyata
- C21 - METALLURGY OF IRON