Shiseido Company, Limited

The Ritsumelkan Trust

The Ritsumeikan Trust

Kenichi Sakuma

Masayoshi Wada

Kazuyuki Miyazawa

Taketoshi Kanda

Yousuke Toujo

Asa Kimura

Yukimitsu Suda

Osamu Shirota

Satoshi Tomomasa

Aya Ohkubo

Hiroyuki Yokoyama

Eriko Kawai

Norinobu Yoshikawa

Hiroshi Kutsuna

Hiroshi Fukui

Takakuni Douseki

Katsuki Ogawa

Naoto Hanyu

Yukie Yoda

Shigeyuki Ogawa

Kazuma Kitamura

An invisible information embedding apparatus for embedding invisible information at a position in an obtained image includes an image analysis unit configured to obtain object information and positional information of an object included in the image, an embedding target image determining unit configured to determine whether the image is an embedding target based on the object information obtained by the image analysis unit, and an image synthesizing unit configured to combine the image with the invisible information based on the determination result of the embedding target image determining unit.

Invisible information embedding apparatus, invisible information detecting apparatus, invisible information embedding method, invisible information detecting method, and storage medium

A method for surface modification of a material by means of introducing the phosphorylcholine group represented by the following formula (1-1) onto the surface of the material by treating a material having amino groups with a chemical compound containing an aldehyde derivative obtained by the oxidative ring-opening reaction of glycerophosphorylcholine.  The method of the present invention provides various materials such as medical materials having superior biocompatibility and hydrophilicity.

Method of modifying surface of material

A phosphorylcholine group-containing chemical compound represented by the following formula (1): 

Phosphorylcholine group-containing compound and surface modifying agent composed of such compound

A complex powder comprising an adsorption site and operation site, In the complex powder described above, it is preferable that &#x3b6;-potential of the adsorption site at the pH employed is negative value, And it is preferable that said adsorption site has &#x3b6;-potential at pH7.5 of &#x2212;10 mV or below. In the complex powder described above, it is preferable that said specific enzyme is a plasminogen activator, and the operation site inhibits said plasminogen activator. The complex powder described above can be used as an external composition for improving a rough skin and an external composition for a sensitive skin.

Composite powders and skin preparations for external use containing the same

A laminated material on which information is recorded is provided. The laminated material includes a microsphere fixing layer in which many transparent microspheres are arranged and buried with parts thereof exposed, a reflection layer disposed at almost the focus positions of the transparent microspheres, and a transparent resin layer provided at least partially on a surface of the microsphere fixing layer, where the transparent microspheres are exposed. The transparent resin layer shifts the focus positions of the transparent microspheres to reduce the retroreflectance of the portions where the transparent resin layer is provided. The information is recorded with the use of a difference in retroreflectance between the portions where the transparent resin layer is provided and portions where the transparent resin layer is not provided.

Laminated material having recorded information thereon, article to which the same is affixed, information reading method, and information reading apparatus

A phosphorylcholine group-containing chemical compound represented by the following formula (1).  In this formula, m denotes 2-6 and n denotes 1-4. X, X, and X, independent of each other, denote a methoxy group, ethoxy group, or halogen. Up to two of X, X, and Xcan be any of the following groups: a methyl group, ethyl group, propyl group, isopropyl group, butyl group, or isobutyl group. R is one of the structures in the following formulas (2)-(4) (the chemical compound of formula (1) in the structures of the following formulas (2)-(4) is expressed as A-R&#x2014;B).  In formulas (2)-(4), L is 1-6, P is 1-3. Also a surface modifier consisting of the aforementioned phosphorylcholine group-containing chemical compound, modified powder treated with said surface modifier, a chromatography packing consisting of a modified carrier treated with said surface modifier, a filter treated with said surface modifier, and a glass device treated with said surface modifier.

Phosphorylcholine group containing compound and surface modifying agent composed of such compound

It is an object of the present invention to provide a laminated member with an recorded information code, having a high reading accuracy, which do not detract from product design and which do not require a special reading apparatus. A laminated memberof the present invention comprises a transparent material layeron which an information code is recorded, and a reflection-reduction layerprovided at the opposite side from a side where the information code is observed. The transparent layercomprises low-reflectance portionsand high-reflectance portionshaving a higher reflectance than the low-reflectance portionsThe information code is recorded as a distributed pattern of the high-reflectance portionsThe reflection-reduction layerreduces reflected light advancing to the transparent material layer

Laminated material with imprinted information, article on which the same is attached, method for reading information code

A first subject of the present invention is a composite powder having antibacterial and antifungal effect, in which a base powder, zinc oxide and/or zinc basic carbonate, and alkali metal salt are combined. In the composite powder, it is preferable that the base powder is an adsorbing site for adsorbing a specified enzyme, and a site in which zinc oxide and/or zinc basic carbonate and alkali metal salt are combined is an acting site having enzyme inhibiting or activating property. In the composite powder, it is preferable that the zeta-potential of an adsorbing site at pH to be used is a negative value, and the zeta-potential of an adsorbing site at pH 7.5 is &#x2212;10 mV or lower. A second subject of the present invention is a cosmetic composition comprising the aforementioned composite powder. The composite powder can be also used as a skin roughening improving agent, a sensitive skin caring agent or a pimpled skin caring agent.

Composite powder and cosmetic containing the same

A multi color changing powder with a bluish base appearance color of which color tone varies according to the observation direction is provided. A pleochroism powder of the present invention comprises a flaky mica having a coating which consists of two layers wherein one of said two layers is a first layer comprising a metal oxide of titanium coated on said flaky mica and the other is a second layer comprising metal oxides of cobalt and aluminum coated on said first layer.

Growing community of inventors

Yokohama, Japan

Kenichi Sakuma