Masaharu Oka

Person

Kitakyushu, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Hot-rolled steel sheet, hot-dip coated steel sheet, and method for...
- Patent number 12,221,669
- Issue date Feb 11, 2025
- Nippon Steel Corporation
- Kentarou Hirata
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Cold rolled steel sheet for drawn can and method for manufacturing...
- Patent number 10,907,236
- Issue date Feb 2, 2021
- Nippon Steel Corporation
- Masaharu Oka
- B32 - LAYERED PRODUCTS
Information Patent Grant
Galvannealed steel sheet and production method thereof
- Patent number 10,815,553
- Issue date Oct 27, 2020
- Nippon Steel Corporation
- Masaharu Oka
- B32 - LAYERED PRODUCTS
Information Patent Grant
Galvanized steel sheet and method for producing the same
- Patent number 10,336,037
- Issue date Jul 2, 2019
- Nippon Steel & Sumitomo Metal Corporation
- Masaharu Oka
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
High-strength low-specific-gravity steel sheet having superior spot...
- Patent number 10,294,551
- Issue date May 21, 2019
- Nippon Steel & Sumitomo Metal Corporation
- Masaharu Oka
- C21 - METALLURGY OF IRON
Information Patent Grant
Bake-hardenable high-strength cold-rolled steel sheet and method of...
- Patent number 9,702,031
- Issue date Jul 11, 2017
- Nippon Steel & Sumitomo Metal Corporation
- Satoshi Akamatsu
- C21 - METALLURGY OF IRON
Information Patent Grant
High-strength steel plate and producing method therefor
- Patent number 8,500,924
- Issue date Aug 6, 2013
- Nippon Steel & Sumitomo Metal Corporation
- Tatsuya Kumagai
- C21 - METALLURGY OF IRON
Information Patent Grant
Cast steel and steel material with excellent workability, method fo...
- Patent number 6,918,969
- Issue date Jul 19, 2005
- Nippon Steel Corporation
- Masafumi Zeze
- C21 - METALLURGY OF IRON
Information Patent Grant
Cast steel piece and steel product excellent in forming characteris...
- Patent number 6,585,799
- Issue date Jul 1, 2003
- Nippon Steel Corporation
- Masafumi Zeze
- C21 - METALLURGY OF IRON
Information Patent Grant
Oil well pipe threaded joint
- Patent number 6,176,524
- Issue date Jan 23, 2001
- Nippon Steel Corporation
- Eiji Tsuru
- E21 - EARTH DRILLING MINING
Information Patent Grant
Joint for steel pipe having high galling resistance and surface tre...
- Patent number 6,027,145
- Issue date Feb 22, 2000
- Nippon Steel Corporation
- Eiji Tsuru
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
HOT-ROLLED STEEL SHEET, HOT-DIP COATED STEEL SHEET, AND METHOD FOR...
- Publication number 20240425945
- Publication date Dec 26, 2024
- Nippon Steel Corporation
- Kentarou HIRATA
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
SURFACE-TREATED STEEL SHEET
- Publication number 20240183013
- Publication date Jun 6, 2024
- NIPPON STEEL CORPORATION
- Kosuke KAWAMOTO
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
HOT ROLLED STEEL SHEET AND PRODUCTION METHOD THEREOF
- Publication number 20230034898
- Publication date Feb 2, 2023
- NIPPON STEEL CORPORATION
- Masaharu OKA
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
COLD ROLLED STEEL SHEET FOR DRAWN CAN AND METHOD FOR MANUFACTURING...
- Publication number 20200048730
- Publication date Feb 13, 2020
- NIPPON STEEL CORPORATION
- Masaharu OKA
- B32 - LAYERED PRODUCTS
Information Patent Application
GALVANNEALED STEEL SHEET AND PRODUCTION METHOD THEREOF
- Publication number 20180258514
- Publication date Sep 13, 2018
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Masaharu OKA
- C21 - METALLURGY OF IRON
Information Patent Application
GALVANIZED STEEL SHEET AND METHOD FOR PRODUCING THE SAME
- Publication number 20160075109
- Publication date Mar 17, 2016
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Masaharu OKA
- B32 - LAYERED PRODUCTS
Information Patent Application
HIGH-STRENGTH LOW-SPECIFIC-GRAVITY STEEL SHEET HAVING SUPERIOR SPOT...
- Publication number 20160040273
- Publication date Feb 11, 2016
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Masaharu OKA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
BAKE-HARDENABLE HIGH-STRENGTH COLD-ROLLED STEEL SHEET AND METHOD OF...
- Publication number 20130240094
- Publication date Sep 19, 2013
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Satoshi Akamatsu
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH STEEL PLATE AND PRODUCING METHOD THEREFOR
- Publication number 20110253271
- Publication date Oct 20, 2011
- Tatsuya Kumagai
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Cast steel and steel material with excellent workability, method fo...
- Publication number 20030015260
- Publication date Jan 23, 2003
- NIPPON STEEL CORPORATION
- Masafumi Zeze
- C21 - METALLURGY OF IRON

Masaharu Oka

Person

Patents Grantslast 30 patents

Hot-rolled steel sheet, hot-dip coated steel sheet, and method for...

Cold rolled steel sheet for drawn can and method for manufacturing...

Galvannealed steel sheet and production method thereof

Galvanized steel sheet and method for producing the same

High-strength low-specific-gravity steel sheet having superior spot...

Bake-hardenable high-strength cold-rolled steel sheet and method of...

High-strength steel plate and producing method therefor

Cast steel and steel material with excellent workability, method fo...

Cast steel piece and steel product excellent in forming characteris...

Oil well pipe threaded joint

Joint for steel pipe having high galling resistance and surface tre...

Patents Applicationslast 30 patents

HOT-ROLLED STEEL SHEET, HOT-DIP COATED STEEL SHEET, AND METHOD FOR...

SURFACE-TREATED STEEL SHEET

HOT ROLLED STEEL SHEET AND PRODUCTION METHOD THEREOF

COLD ROLLED STEEL SHEET FOR DRAWN CAN AND METHOD FOR MANUFACTURING...

GALVANNEALED STEEL SHEET AND PRODUCTION METHOD THEREOF

GALVANIZED STEEL SHEET AND METHOD FOR PRODUCING THE SAME

HIGH-STRENGTH LOW-SPECIFIC-GRAVITY STEEL SHEET HAVING SUPERIOR SPOT...

BAKE-HARDENABLE HIGH-STRENGTH COLD-ROLLED STEEL SHEET AND METHOD OF...

HIGH-STRENGTH STEEL PLATE AND PRODUCING METHOD THEREFOR

Cast steel and steel material with excellent workability, method fo...