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:
Feb. 15, 2005
Filed:
Sep. 08, 2003
Hideki Hatano, Tsurugashima, JP;
Takashi Yamaji, Tsurugashima, JP;
Kenji Kitamura, Tsukuba, JP;
Shunji Takekawa, Tsukuba, JP;
Masaru Nakamura, Tsukuba, JP;
Hideki Hatano, Tsurugashima, JP;
Takashi Yamaji, Tsurugashima, JP;
Kenji Kitamura, Tsukuba, JP;
Shunji Takekawa, Tsukuba, JP;
Masaru Nakamura, Tsukuba, JP;
Pioneer Corporation, Tokyo, JP;
National Institute for Material Science, Ibaraki, JP;
Abstract
A holographic recording medium exhibiting a high recording sensitivity without execution of reduction treatment. A system records information on the holographic recording medium by using a gating light within a wavelength band causing less optical damage to the holographic recording medium. The holographic recording medium includes a single crystal of lithium niobate (LiNbO) or lithium tantalate (LiTaO) containing Mn as a dopant.