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:
Nov. 29, 2005
Filed:
Dec. 26, 2000
Akira Ogiso, Sodegaura, JP;
Shinobu Inoue, Sodegaura, JP;
Taizo Nishimoto, Sodegaura, JP;
Hisashi Tsukahara, Sodegaura, JP;
Tsutami Misawa, Sodegaura, JP;
Tadashi Koike, Sodegaura, JP;
Norihiko Mihara, Sodegaura, JP;
Shunsuke Murayama, Sodegaura, JP;
Ryousuke Nara, Sodegaura, JP;
Akira Ogiso, Sodegaura, JP;
Shinobu Inoue, Sodegaura, JP;
Taizo Nishimoto, Sodegaura, JP;
Hisashi Tsukahara, Sodegaura, JP;
Tsutami Misawa, Sodegaura, JP;
Tadashi Koike, Sodegaura, JP;
Norihiko Mihara, Sodegaura, JP;
Shunsuke Murayama, Sodegaura, JP;
Ryousuke Nara, Sodegaura, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Yamamoto Chemicals, Inc., Yao, JP;
Abstract
An optical recording medium having a recording layer which contains at least one compound selected from the group consisting of mono-, di-, and triazaporphyrin compounds optionally in the form of a metal complex; or an optical recording medium comprising a substrate and formed thereon at least a recording layer containing an organic dye as a main component, characterized in that the organic dye has a first maximum value of absorption at a wavelength λof 400 nm or less in the absorption spectrum and has a second maximum value of absorption at a longer-wavelength side than the λ, and a wavelength band wherein the refractive index (n) and the absorption coefficient (k) of the above organic dye satisfy n≧1.90 and 0.03≦k≦0.30.