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:
Jan. 05, 1999
Filed:
Aug. 04, 1997
Hideki Umehara, Yokohama, JP;
Jun Tokuhiro, Mobara, JP;
Yuji Inatomi, Kamakura, JP;
Tomoyoshi Sasakawa, Chiba, JP;
Tsutami Misawa, Yokohama, JP;
Kenichi Sugimoto, Yokohama, JP;
Taizo Nishimoto, Kamakura, JP;
Takeshi Tsuda, Yokohama, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
An optical recording medium comprising a recording layer, a light interference layer, a reflective layer and a protective layer that are laminated on a substrate, characterized in that said recording layer and said light interference layer comprise at least one organic dye, and that a light absorbent and/or a thermal decomposition promoter are/is added to said light interference layer, wherein the optical recording medium has compatibility that allows good recording and/or reproduction by using lasers of different two wavelength ranges and has good recording properties.