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:
Mar. 06, 2012
Filed:
Apr. 15, 2010
Applicants:
Yoshiaki Komma, Osaka, JP;
Joji Anzai, Osaka, JP;
Masahiko Tsukuda, Osaka, JP;
Yasumori Hino, Nara, JP;
Inventors:
Yoshiaki Komma, Osaka, JP;
Joji Anzai, Osaka, JP;
Masahiko Tsukuda, Osaka, JP;
Yasumori Hino, Nara, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 3/70 (2006.01); G11B 7/26 (2006.01); B32B 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Shape-wise thicknesses tr, tr, . . . , and trN of a cover layer and first through (N−1)-th intermediate layers of an optical recording medium having refractive indexes nr, nr, . . . , and nrN are converted into thicknesses t, t, . . . , and tN which are calculated by products of a function f(n)=−1.088n+6.1027n−12.042n+9.1007 where n=nr, nr, . . . , and nrN.