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. 19, 2008
Filed:
Jun. 23, 2005
Noboru Sasa, Kanagawa, JP;
Yoshitaka Hayashi, Kanagawa, JP;
Hirotaka Komoda, Osaka, JP;
Atsuyuki Watada, Shizouka, JP;
Kawori Tanaka, Kanagawa, JP;
Toshishige Fujii, Kanagawa, JP;
Hisamitsu Kamezaki, Kanagawa, JP;
Noboru Sasa, Kanagawa, JP;
Yoshitaka Hayashi, Kanagawa, JP;
Hirotaka Komoda, Osaka, JP;
Atsuyuki Watada, Shizouka, JP;
Kawori Tanaka, Kanagawa, JP;
Toshishige Fujii, Kanagawa, JP;
Hisamitsu Kamezaki, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
For recording information at high density even at blue-laser wavelengths, a write-once-read-many optical recording medium includes a first inorganic thin film and at least one of a second inorganic thin film and an organic thin film, in which the first inorganic thin film contains at least 'R' and 'O,' wherein “R” is at least one selected from Y, Bi, In, Mo, V and lanthanum series elements; and “O” is oxygen atom, and the second inorganic thin film and the organic thin film are capable of suppressing at least one of deformation and breakage of the first inorganic thin film and receiving the change of state of the first inorganic thin film.