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:
Mar. 19, 2013
Filed:
Jul. 22, 2008
Kohei Tomari, Kitakyushu, JP;
Hidetaka Fujimatsu, Kitakyushu, JP;
Kazuyoshi Masaki, Kitakyushu, JP;
Takehiro Shimizu, Kitakyushu, JP;
Yasuji Shichijo, Kitakyushu, JP;
Kohei Tomari, Kitakyushu, JP;
Hidetaka Fujimatsu, Kitakyushu, JP;
Kazuyoshi Masaki, Kitakyushu, JP;
Takehiro Shimizu, Kitakyushu, JP;
Yasuji Shichijo, Kitakyushu, JP;
Nippon Steel Chemical Co., Ltd., Tokyo, JP;
Abstract
Disclosed are a volume phase hologram recording material having high sensitivity, high contrast, and excellent multiple recording and record holding properties and a volume phase hologram recording medium using the same. The volume phase hologram recording material comprises mainly a polymer matrix (a), a radically photopolymerizable compound (b), and a radical photopolymerization initiator (c) and the polymer matrix is a three-dimensionally crosslinked or linear polymer matrix formed from a polymer matrix-forming material containing 0.5-50 wt % of an episulfide compound (f), an epoxy compound (g), and a curing agent (h).