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.:
Date of Patent:
Dec. 18, 1990
Filed:
Dec. 22, 1987
Applicant:
Inventors:
Tsuneyoshi Wakui, Chiba, JP;
Takeo Ohnishi, Chiba, JP;
Yuji Shimoyama, Chiba, JP;
Hideo Kuguminato, Chiba, JP;
Fumio Kosumi, Chiba, JP;
Tadaaki Yasumi, Chiba, JP;
Hironobu Ohno, Chiba, JP;
Toshio Akizuki, Chiba, JP;
Fumiya Yanagishima, Chiba, JP;
Assignee:
Kawasaki Steel Corporation, Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
428600 ; 428687 ; 428923 ; 72199 ; 291211 ; 21912168 ;
Abstract
An uneven patterned metal strip or plate is formed with an uneven pattern as a surface decorative pattern. The pattern is constituted of one or more pattern unit containing a plurality of uneven dot. Each of the uneven dots has a size D. The uneven dots are arranged in a predetermined density to have given ratio .eta. of occupying area versus plane area in said pattern unit. The size D and area ratio .eta. being in a range of: