Akiko Tomio

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cr-Ni alloy and seamless steel pipe made of Cr-Ni alloy
- Patent number 11,286,545
- Issue date Mar 29, 2022
- Nippon Steel Corporation
- Akiko Tomio
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
High alloy for oil well
- Patent number 10,280,487
- Issue date May 7, 2019
- Nippon Steel & Sumitomo Metal Corporation
- Masayuki Sagara
- C21 - METALLURGY OF IRON
Information Patent Grant
Duplex stainless steel
- Patent number 10,202,675
- Issue date Feb 12, 2019
- Nippon Steel & Sumitomo Metal Corporation
- Masayuki Sagara
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Cr-Ni ALLOY AND SEAMLESS STEEL PIPE MADE OF Cr-Ni ALLOY
- Publication number 20200370151
- Publication date Nov 26, 2020
- NIPPON STEEL CORPORATION
- Akiko TOMIO
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
HIGH ALLOY FOR OIL WELL
- Publication number 20160333446
- Publication date Nov 17, 2016
- NIPPON STEEL SUMITOMO METAL CORPORATION
- Masayuki SAGARA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
DUPLEX STAINLESS STEEL
- Publication number 20150152530
- Publication date Jun 4, 2015
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Masayuki Sagara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...