Haruka OBE

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Chiyoda-ku, Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Production method of seamless steel pipe
- Patent number 11,471,923
- Issue date Oct 18, 2022
- Nippon Steel Corporation
- Kouji Yamane
- C21 - METALLURGY OF IRON
Information Patent Grant
Piercing machine, mandrel bar, and method for producing seamless me...
- Patent number 11,344,935
- Issue date May 31, 2022
- Nippon Steel Corporation
- Haruka Obe
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
PIERCING MACHINE, MANDREL BAR, AND METHOD FOR PRODUCING SEAMLESS ME...
- Publication number 20210178442
- Publication date Jun 17, 2021
- NIPPON STEEL CORPORATION
- Haruka OBE
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
PRODUCTION METHOD OF SEAMLESS STEEL PIPE
- Publication number 20200384514
- Publication date Dec 10, 2020
- NIPPON STEEL CORPORATION
- Kouji YAMANE
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
PIERCING MACHINE, AND METHOD FOR PRODUCING SEAMLESS METAL PIPE USIN...
- Publication number 20200276625
- Publication date Sep 3, 2020
- NIPPON STEEL CORPORATION
- Yasuhiko DAIMON
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...