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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4501626 B1

PDFFull Text
Date of Patent:
Feb. 26, 1985

Filed:

Oct. 15, 1981

High strength steel plate and method for manufacturing same

Applicant:
Inventors:

Masatoshi Sudo, Kobe, JP;

Hiromi Hori, Akashi, JP;

Takafusa Iwai, Akashi, JP;

Akinori Ohtomo, Akashi, JP;

Denei Takai, Kakogawa, JP;

Assignee:

Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;

Attorney:

Oblon, Fisher, Spivak, McClelland & Maier

Primary Examiner:

Peter K Skiff

Int. Cl.
CPC ...
C21D / ; C21D / ;
U.S. Cl.
CPC ...
148 36 ; 148 / ;
Abstract

There are described a high strength steel plate having a low yield ratio and improved strength-elongation balance and stretch flangeability, and a method for producing same, the steel plate containing 0.01-0.2% of C, 0.3-2.5% of Mn and 0.01-1.8% of Si and having a tripple phase of polygonal ferrite, bainite and martensite, the area ratios of the bainite and martensite phases being 4-45% and 1-15%, respectively, and the area ratio of the bainite phase being greater than that of the martensite phase.

Find Patent Forward Citations

Sudo, Masatoshi. (1985). High strength steel plate and method for manufacturing same (U.S. Patent No. 4501626). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4501626

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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