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:
May. 22, 2007
Filed:
Sep. 30, 2004
Applicants:
Masato Fukushima, Chiba, JP;
Ryuji Sakaguchi, Chiba, JP;
Yukihisa Matsumura, Chiba, JP;
Inventors:
Assignee:
Showa Denko K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D 5/12 (2006.01); G11B 5/706 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for producing a magnetic recording medium, which process comprises a texturing step for forming texture grooves having a line density of 7,500 lines/mm or more on the surface of a non-metallic substrate, and a step for forming an orientation-determining film, a non-magnetic undercoat layer, and a magnetic layer on the non-metallic substrate.
Fukushima, Masato. (2007). Magnetic recording medium, process for producing the same, and magnetic recording and reproducing apparatus (U.S. Patent No. 7220447). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7220447
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile