Keiji OGAWA

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Patents Grantslast 30 patents

Information Patent Grant
Press forming apparatus and press forming method
- Patent number 10,682,681
- Issue date Jun 16, 2020
- Nippon Steel Corporation
- Ryuichi Nishimura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING PRESS-FORMED PRODUCT AND PRODUCTION LINE THEREOF
- Publication number 20190111463
- Publication date Apr 18, 2019
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Junki NATORI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
PRESS FORMING APPARATUS AND PRESS FORMING METHOD
- Publication number 20160114379
- Publication date Apr 28, 2016
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Ryuichi NISHIMURA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...