Toppan Printing Co., Ltd.

Naoaki Shindo

Takashi Sato

Akihiko Kobayashi

Yoshiaki Tada

Atsushi Sato

Akira Kubo

Noriyuki Ito

Niro Watanabe

Satoshi Gocho

Atsushi Kijima

Nagahisa Matsudaira

Kazuhisa Hoshino

Tatsuya Morimitsu

Kiyoshi Horie

Takehide Kita

According to the present invention, there is provided a laminated composite including an optical layer having a light reflectivity, and a latent image formation layer containing a liquid crystalline polymer material and provided on one of major surfaces of the optical layer, wherein the latent image formation layer includes at least one oriented portion in an orientation state and at least one non-oriented portion in a non-orientation state, and the oriented and non-oriented portions constitute a latent image which is unrecognizable by a direct visual observation and recognizable by a visual observation through a polarizing member. Also, according to the present invention, there is provided an information recording medium and a member of imparting a forgery-preventing characteristic including such a latent image formation layer.

Laminated composite, information recording medium, and member of imparting forgery-preventing characteristic

A monochromatic-light reproduction type hologram having a hologram recorded area provided with interference fringes that form a hologram image, the hologram image being reproducible by irradiating the hologram recorded area with monochromatic light at a given angle. A plurality of hologram images different from each other in the directionality of interference fringes are multiple-recorded in the hologram recorded area. Alternatively, the hologram recorded area is divided into a plurality of regions so that a plurality of hologram images different from each other in the directionality of interference fringes are separately recorded in the divided regions. The recorded area is successively or simultaneously irradiated with monochromatic light rays at given angles corresponding to the directionality of interference fringes of the respective hologram images, to reproduce the hologram images as a plurality of information patterns or a single information pattern. The reproduced information pattern(s) can be utilized as identity information for judgment on whether or not an article is genuine, and also no more than a dead copy of part of the hologram image that constitutes a single information pattern can be produced even if laser light is made incident on the hologram recorded area from one direction, so that its forgery can be prevented.

Monochromatic-light reproduction type hologram, and method and apparatus

An intermediate transfer medium comprises a heat-resistant base sheet and provided thereon a release layer and an image-receiving adhesive layer on which an image pattern is formed by a sublimation transfer means in accordance with image data, said image-receiving adhesive layer, on which said image pattern has been formed, being transferred to a transfer substrate together with said release layer to produce an image-recorded article, wherein said image-receiving adhesive layer is comprised of a thermoplastic resin having a glass transition point of 50.degree. C. or above and a filler added to the thermoplastic resin and selected from the group consisting of an inorganic filler having a melting point of 200.degree. C. or above and an organic filler having a softening point or decomposition point of 200.degree. C. or above.

Intermediate transfer medium and process for producing image-recorded

Growing community of inventors

Tokyo, Japan

Naoaki Shindo