Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Reexamination Certificate
2006-05-09
2006-05-09
Angebranndt, Martin (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
C430S945000, C430S064000, C430S913000, C369S275500, C427S162000, C204S192260, C204S192290
Reexamination Certificate
active
07041430
ABSTRACT:
Problem to be solved is that when an information recording medium is repeatedly subjected to recording of information several hundreds times, the atoms in a protective layer are diffused and dissolved into a recording layer to lower a reflectivity greatly and make the medium unendurable to many times of overwriting. This problem can be solved by a medium constituted of interference layer10, interface layer12, phase-change type recording layer14, protective layer13having a tin content of from 23.3 atomic % to 32.3 atomic %, and a heat sink layer8successively formed on substrate1, as seen from a light-incidence side. By use of this medium, the dissolution of atoms can be prevented, and overwriting for many times can be achieved.
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Noboru Yamada, Mayumi Otoba, Kenichi Nagata, Shige'aki Furukawa, Kenji Narumi. Nobuo Akahira and Fumiaki Ueno. “Phase-Change Optical Disk with Nitride Interface Layers”, SPIE, vol. 3401, pp. 24-32.
Abtract of CN 1313592 and Front Page of CN 1313592.
Andoo Keikichi
Anzai Yumiko
Hirotsune Akemi
Kurokawa Takahiro
Miyamoto Makoto
A. Marquez, Esq. Juan Carlos
Angebranndt Martin
Fisher Esq. Stanley P.
Hitachi , Ltd.
Reed Smith LLP
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