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:
May. 07, 2002
Filed:
Feb. 01, 2000
Akemi Hirotsune, Higashimurayama, JP;
Motoyasu Terao, Hinode, JP;
Makoto Miyamoto, Ome, JP;
Yasushi Miyauchi, Akishima, JP;
Tetsuya Nishida, Tokyo, JP;
Keikichi Ando, Musahino, JP;
Nobuhiro Tokushuku, Yokohama, JP;
Yukio Fukui, Machida, JP;
Takehiko Yorozu, Toride, JP;
Reiji Tamura, Moriya, JP;
Yoshihiro Ikari, Toride, JP;
Other;
Abstract
An information recording medium having recording, reproducing, and rewriting characteristics better than those of prior art media. The media has a recording layer made of a material represented by the following formula: Ge Sb Te M , wherein 0.13≦x≦0.22, 0.20≦y≦0.32, 0.53≦z≦0.60, 0≦w≦0.06, x+y+z=1, and M is any one of Na, Mg, Al, P, S, Cl, L, Ca, Sc, Zn, Ga, As, Se, Br, Rb, Sr, Y, Zr, Nb, Ru, Rh, Cd, In, Sn, I, Cs, Ba, La, Hf, Ta, Re, Os, Ir, Hg, Tl, Pb, Th, U, Ag, Cr, W, Mo, Pt, Co, Ni, Pd, Si, Au, Cu, V, Mn, Fe, Ti and Bi.