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:
Apr. 29, 2008
Filed:
Nov. 10, 2004
Koji Mishima, Tokyo, JP;
Daisuke Yoshitoku, Tokyo, JP;
Kenji Yoneyama, Tokyo, JP;
Takashi Yamada, Tokyo, JP;
Koji Mishima, Tokyo, JP;
Daisuke Yoshitoku, Tokyo, JP;
Kenji Yoneyama, Tokyo, JP;
Takashi Yamada, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
An information recording medium according to the present invention includes a recording layer that is formed of a single layer of a single type of recording material and is directly sandwiched by a pair of resin layers, the information recording medium being constructed so that at least one resin layer out of the pair of resin layers deforms due to deformation of the recording layer that is caused by irradiation with laser light for recording data and a track pitch is in a range of 0.1 μm to 0.5 μm, inclusive, wherein the pair of resin layers are formed with respective Young's moduli in a range of 415 MPa to 7100 MPa, inclusive.