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:
Aug. 03, 2010
Filed:
Feb. 22, 2007
Tsukasa Nakai, Hino, JP;
Sumio Ashida, Yokohama, JP;
Keiichiro Yusu, Yokohama, JP;
Takayuki Tsukamoto, Kawasaki, JP;
Noritake Oomachi, Yokohama, JP;
Naomasa Nakamura, Yokohama, JP;
Katsutaro Ichihara, Yokohama, JP;
Tsukasa Nakai, Hino, JP;
Sumio Ashida, Yokohama, JP;
Keiichiro Yusu, Yokohama, JP;
Takayuki Tsukamoto, Kawasaki, JP;
Noritake Oomachi, Yokohama, JP;
Naomasa Nakamura, Yokohama, JP;
Katsutaro Ichihara, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A phase-change optical recording medium has a recording film that brings about reversible phase-change between a crystalline phase and an amorphous phase upon irradiation with light and an interface film formed in contact with at least one surface of the recording film and comprising hafnium (Hf), silicon (Si), oxygen (O) and carbon (C).