Asahi Kogaku Kogyo Kabushiki Kaisha

Ichikawa Co., Ltd.

Semiconductor Technology Academic Research Center

Adin Research, Inc.

Nobuharu Suzuki

Tahei Morisawa

Shintaro Yamazaki

Yuya Takamori

Atsushi Ishino

Takao Yazaki

Mitsuyoshi Matsuno

Chie Umehara

Harumi Aoki

Makoto Mogamiya

Taichi Sakai

Tetsuya Abe

Taketo Heishi

Koji Sasaki

Takeshi Sawada

Ai Tamura

Kazuhiko Taketa

Ryo Umehara

Tomoyuki Kawamata

Toshinori Sueyoshi

Masahiro Iida

Yuji Mizoguchi

Motoki Amagasaki

An information processing system includes a first information processing apparatus, which authenticates second and third information processing apparatuses, acquires first data from the second information processing apparatus, and transmits second data indicating a method of generating a key from the first data, to the second and third information processing apparatuses; the second information processing apparatus, which transmits the first data to the first and third information processing apparatuses, acquires the second data from the first information processing apparatus, generates the key based on the first and second data, and communicates with the third information processing apparatus based on the key; and the third information processing apparatus, which acquires the first data from the second information processing apparatus, acquires the second data from the first information processing apparatus, generates the key based on the first and second data, and communicates with the second information processing apparatus based on the key.

Information processing system, information processing method, and recording medium for improving security of encrypted communications

There is provided a shoe press belt for a papermaking machine, comprising one or more resin layers. At least a part of the resin layers comprises a polyurethane resin comprising polymeric MIDI as an ingredient. The polyurethane resin may be a resin obtainable by reacting one or more curing agent(s) having an active hydrogen group, polymeric MDI and one or more urethane prepolymer(s) having a terminal isocyanate group, the urethane prepolymer(s) being obtainable by reacting one or more isocyanate compound(s) with one or more polyol(s).

Shoe press belt

A shoe press belt with excellent mechanical properties, in particular a shoe press belt with excellent crack resistance and excellent resistance to land edge deficiency. The shoe press belt includes a felt-side resin layer containing a resin formed by curing a prepolymer having a terminal isocyanate group (&#x2014;NCO) with a curing agent, wherein the prepolymer contains, in reacted form, a compound comprising 1,4-bis(isocyanate methyl) cyclohexane and a polycarbonate diol, and wherein the felt-side resin layer has grooves that are configured to receive water squeezed from a felt.

The purpose of the present invention is to provide a shoe press belt which exhibits improvement in mechanical characteristics such as crack resistance, wear resistance, delamination resistance and bending fatigue resistance, particularly in the surface wear resistance of the shoe press belt and the crack resistance of the bottom regions of water receiving parts. A shoe press belt which is produced by integrating a reinforcing substrate with a polyurethane layer including at least a felt-side layer and in which water-receiving parts are formed in the felt-side layer, wherein the polyurethane equivalent value of the second resin layer including the bottom regions of the water-receiving parts is adjusted so as to be larger than that of the first resin layer including a surface which is to be brought into contact with a felt.

Shoe press belt for papermaking

A reconfigurable logic block has a first circuit that configures an arithmetic circuit and a second circuit that configures a circuit outside of the arithmetic circuit. A plurality of different circuits are configured by changing the settings of predetermined signals in the first and second circuits.

Reconfigurable logic block, programmable logic device provided with the reconfigurable logic block, and method of fabricating the reconfigurable logic block

A shoe press belt for paper-making machine that reduces belt damages attributed to the friction between belt and shoe. The shoe press belt for paper-making machine having a wet paper contact surface and a shoe contact surface, is characterized in that the shoe press belt for paper-making machine has a base member and at least a polymer elastic part constituting the shoe contact surface and that the shoe contact surface of the polymer elastic part has a surface roughness (Ra) of 1.0 to 3.5 &#x3bc;m.

Shoe press belt for paper-making machine and process for producing the same

A belt for papermaking shoe press is provided which comprises a reinforcing fibrous base () and a polyurethane layer () united therewith, the reinforcing fibrous base () having been embedded in the polyurethane layer (). The belt includes a polyurethane layer obtained by curing a mixture comprising: a urethane prepolymer obtained by reacting a polyisocyanate compound selected among p-phenylene-diisocyanate, 4,4'-methylene-bis(phenyl isocyanate), and tolylene-diisocyanate with a polyol compound selected among polypropylene glycol, polytetramethylene glycol, and a polycarbonate diol; a hardener selected among an aliphatic diol compound, hydroquinone-bis-&#x3b2;-hydroxyethyl ether, and organic polyamine compound; and an aliphatic triol compound. Due to this layer, the shoe press belt for papermaking is excellent in wearing resistance and flexing fatigue resistance.

Disclosed is a shoe press belt () which comprises a reinforcing fibrous base material () embedded in a polyurethane layer, and has an outer circumference layer () and an inner circumference layer () each formed with a polyurethane. The polyurethane layer comprises a polyurethane which is produced by curing a composition comprising a mixture of an urethane prepolymer (A) and a curing agent (B). The urethane prepolymer (A) is produced by reacting an isocyanate compound (a) containing 55 to 100 mol % of a p-phenylene-diisocyanate compound with polytetramethylene glycol (b) and has an isocyanate group at its terminal. The curing agent (B) is selected from the group consisting of 1,4-butanediol, hydroquinone bis-&#x3b2;hydroxylethyl ether, 3,5-diethyltoluenediamine and 3,5-dimethylthiotoluenediamine. The belt () has excellent cracking resistance, bending fatigue resistance and wear resistance.

Shoe press belt for paper making

Disclosed is a shoe press belt () which comprises a reinforcing fibrous base material () embedded in a polyurethane layer, and has an outer circumference layer () and an inner circumference layer () each formed with a polyurethane. The polyurethane layer constituting the outer circumference layer () comprises a polyurethane which is cured by the reaction of an urethane prepolymer (A) with a curing agent mixture (B). The urethane prepolymer (A) is produced by reacting an isocyanate compound selected from p-phenylene-diisocyanate and 4,4'-methylenebis(phenylisocyanate) with a polytetramethylene glycol and has an isocyanate group at its terminal. The curing agent mixture (B) comprises 1,4-butanediol and an aromatic polyamine having an active hydrogen group (H). The shoe press belt has excellent wear resistance, cracking resistance and bending fatigue resistance.

An electronic still camera having a photographing system, a photographing element located at a surface of the photographing optical system on which an image is formed and a finder optical unit disposed separately from the photographing optical system. An optical path of the finder optical unit includes a forward optical path disposed parallel to and close to the photographing optical system, a rearward optical path disposed at a position away form an optical axis of the photographing optical system farther than the forward optical path and a deflected optical path for connecting the forward optical path to the rearward optical path and disposed at a position forward of the photographing element.

Electronic still camera

This invention provides a viewfinder which is mounted separately from a taking lens on a camera and wherein the occupying space of a parallax-correcting prism is minimized to arrange freely its optical design. And also, this invention provides a viewfinder decreasing the difference of the diopter and the fuzziness of the image between normal photographing mode and macro photographing mode. To achieve these objects, this viewfinder comprises a prism arranged in the optical path of said viewfinder to correct the parallax, and a driving mechanism to slide said prism in the direction normal to the axis of said lens system.

Viewfinder for camera

A device for indicating a distance measuring zone, which device includes a CCD image pickup device and an electronic finder. The CCD image pickup device is sensitive to an infrared distance measuring beam which is projected by a distance measuring device onto an object and reflected therefrom. The electronic finder is provided for observing an electric conversion image formed by the CCD image pickup device.

Device for indicating distance measuring zone of camera

A viewfinder is provided for being mounted on a camera containing a photographing lens which is based from the optical axis of the viewfinder. A parallax correcting prism insertable into and extractable from the axis of the viewfinder as provided. The camera is arranged such that the space occupied by the parallax-correcting prism is minimized so as to allow design freedom for the camera. The viewfinder is also designed to decrease the difference in the diopter and the fuzziness of the image between normal photographing mode and a macro photographing mode. A driving mechanism is provided to move the prism in a direction substantially normal to the axis of a viewfinder lens system in order to insert it and remove it from the optical axis of the viewfinder. According to a further feature of the invention, the prism can include a curved surface having a magnifying power.

A parallax correcting apparatus is provided which comprises an imaging device driving mechanism for supporting a solid state image device so as to move toward and away from the optical axis of a finder optical system. The imaging device driving mechanism moves the imaging device in accordance with the object distance detected by an object distance measuring device. The ivention is also directed to a parallax adjusting method and apparatus during assembly of a camera.

Apparatus and method for correcting and adjusting parallax in electronic

An object distance measuring device in a camera, including an active object distance measuring mechanism for emitting measuring light toward an object to be photographed and receiving the measuring light as reflected by the object to detect the object distance is provided. A measuring zone is provided in a finder to indicate a measuring position at which the measurement of the object distance by the active object distance measuring mechanism is effected. A device is provided for varying the position of the measuring zone in the finder, and a device for varying the direction of the emission of the measuring light by the active object distance measuring mechanism in accordance with the varied position of the measuring zone is also provided.

Growing community of inventors

Tokyo, Japan

Nobuharu Suzuki