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. 30, 1995
Filed:
Nov. 17, 1993
Motoharu Tanaka, Mishima, JP;
Atsuyuki Watada, Kawasaki, JP;
Masaetsu Takahashi, Yokohama, JP;
Hiroshi Deguchi, Yokohama, JP;
Toshiaki Tokita, Zama, JP;
Yoshiko Kurosawa, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A magneto-optical recording medium is composed of a first magnetic layer and a second magnetic layer, which are overlaid, each having a perpendicular magnetic anisotropy, and the first magnetic layer having a Curie temperature of Tc.sub.1, a saturation magnetization of Ms.sub.1, a coercive force of Hc.sub.1, and a thickness of t.sub.1, the second magnetic layer having a compensation temperature of Tcomp.sub.2, a Curie temperature Tc.sub.2, and a coercive force of Hc.sub.2, and which satisfies the relationships:
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile