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Fujimatsu

Hidetaka Fujimatsu, Kitakyushu-Shi JP

Patent application numberDescriptionPublished
20100203429VOLUME PHASE HOLOGRAM RECORDING MATERIAL AND OPTICAL INFORMATION RECORDING MEDIUM USING THE SAME - 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).08-12-2010

Hidetaka Fujimatsu, Fukuoka JP

Patent application numberDescriptionPublished
20090310196VOLUME PHASE HOLOGRAM RECORDING MATERIAL AND OPTICAL INFORMATION RECORDING MEDIUM - Disclosed is a volume phase hologram recording material of high sensitivity, high contrast, and excellent record retention properties and also disclosed is a volume phase hologram recording medium using the said material. The volume phase hologram recording material mainly contains a three-dimensional crosslinked polymer matrix, a radically polymerizable monomer, and a photoradical polymerization initiator. The three-dimensional crosslinked polymer matrix is formed from a matrix-forming compound having two photoradically polymerizable unsaturated groups and two non-photoradically polymerizable hydroxyl groups represented by the following general formula (1) and another matrix-forming compound having no photoradically polymerizable group.12-17-2009

Yurie Fujimatsu, Kanagawa JP

Patent application numberDescriptionPublished
20090138729INFORMATION PROCESSING DEVICE, PROGRAM VERIFICATION METHOD, AND RECORDING MEDIUM - A first storage unit stores a plurality of security functions each defining a first protection attribute requiring a storage of a value of an argument for input/output of data. A second storage unit stores a program list describing a second protection attribute of a variable indicating a storage area of the data and an executing procedure of a predetermined process. An identifying unit identifies a third protection attribute of an actual argument for input/output of a security function based on the second protection attribute. When a judging unit judges not all of third protection attributes match with first protection attributes, an output unit outputs error information indicating a mismatch of the protection attributes.05-28-2009