Abstract: A communication system which causes a terminal apparatus to access a server apparatus via a network includes a server management apparatus between the network and at lest one server apparatus. The server management apparatus performs processing of establishing a session for a communication partner terminal via a control apparatus of the network using a predetermined signaling protocol to obtain a use permission of the network on behalf of the server apparatus.

Abstract: A communication system which causes a terminal apparatus to access a server apparatus via a network includes a server management apparatus between the network and at least one server apparatus. The server management apparatus performs processing of establishing a session for a communication partner terminal via a control apparatus of the network using a predetermined signaling protocol to obtain a use permission of the network on behalf of the server apparatus.

Abstract: A communication system comprises a communication optimizing apparatus 4 that performs, when a user terminal accesses a server via an access-controlled network, settings and processes required for obtaining a permission of using the network.

Abstract: Provided is a hair cosmetic that can exhibit hair styling capability, natural finishing capability, and hair style retentivity respectively at superior levels. The hair cosmetic contains a urethane-modified acrylic polymer having a structure in which a urethane polymer chain is bonded to an acrylic polymer chain through a linkage segment having a silicon-oxygen bond, in which the acrylic polymer chain is a residue of an acrylic polymer derived at least from an acrylic monomer (A) and a compound (B1) and/or a compound (B2), where the compound (B1) has a hydrolyzable silicon-containing group and an ethylenically unsaturated bond-containing group, and the compound (B2) has a hydrolyzable silicon-containing group and a mercapto group, and the urethane polymer chain is a residue of a urethane polymer (C) having a hydrolyzable silicon-containing group. The linkage segment in the urethane-modified acrylic polymer is preferably a silicone polymer chain.

Abstract: A wafer protective sheet 1 is made of a synthetic resin sheet with a thickness of 80 to 130 ?m having a large number of projected parts and recessed parts on its front and rear surfaces. The large number of projected parts and the large number of recessed parts are respectively disposed so that each part is positioned at intersections of lattice stripes, and the projected part and the recessed part are disposed alternately each other. The sheet has such a water-like cross section that the recessed parts in the rear surface match the projected parts on the front surface and the projected parts on the rear surface match the recessed parts in the front surface. The wafer protective sheet 1 has a bending resistance of 30 to 80 mm. The wafer protective sheet 1 of the present invention is sufficiently thin. When the wafer protective sheets are interposed between stacked wafers to protect them, the sheets do not adhere to the wafers.

Abstract: To provide vinyl-urethane copolymers that can form cured articles having excellent hot-water resistance, water resistance, heat resistance, and weather resistance, and to provide production methods thereof. A vinyl-urethane copolymer contains at least one vinyl polymer chain and at least one urethane polymer chain, in which the vinyl polymer chain is combined with the urethane polymer chain through a linkage segment having a silicon-oxygen bond.

Abstract: A wafer protective sheet 1 is made of a synthetic resin sheet with a thickness of 80 to 130 ?m having a large number of projected parts and recessed parts on its front and rear surfaces. The large number of projected parts and the large number of recessed parts are respectively disposed so that each part is positioned at intersections of lattice stripes, and the projected part and the recessed part are disposed alternately each other. The sheet has such a water-like cross section that the recessed parts in the rear surface match the projected parts on the front surface and the projected parts on the rear surface match the recessed parts in the front surface. The wafer protective sheet 1 has a bending resistance of 30 to 80 mm. The wafer protective sheet 1 of the present invention is sufficiently thin. When the wafer protective sheets are interposed between stacked wafers to protect them, the sheets do not adhere to the wafers.

Abstract: A token table stores tokens corresponding respectively to permissions installed in a terminal. Prior to downloading an application program (AP), when a permission character string necessary for normally operating an AP intended to be downloaded is input from an installer, a hash value calculating means obtains a hash value of the permission character string, and a searching means searches the token table using the hash value. If a token matching the hash value exists, an instruction to authorize the download is output, and if it does not exist, an instruction not to authorize the download is output.

Abstract: A slide structure comprises a roll shaft and a roll bearing. A whole circumference of the roll shaft is made of a sintered ceramics body. A sliding surface of the roll bearing is constructed by inserting a cermet into a carbon-carbon reinforcing graphite member. A continuous hot dipping apparatus has a roll supported and rotated in a molten metal bath. A sliding surface of the roll shaft and the roll bearing employs the slide structure. The corrosion resistivity and the wearing resistivity can be improved and a long service life can be attained. The slide structure comprised of the roll shaft and the roll bearing can be smoothly rotated by decreasing the friction coefficient of the slide structure.

Abstract: The invention relates to a molten metal plating apparatus comprising a roller rotatably supported by a bearing in a molten metal bath, the roller having a shaft sliding portion, the bearing having a sliding portion, both the shaft sliding portion and the sliding portion being made of ceramic sintered body, at least one of both the shaft of the roller and the bearing being made of a ceramic sintered body containing a solid lubricating material. The invention also relates to a die casting machine having a sleeve and a plunger tip both made of ceramic sintered bodies at least one of which contains a solid lubricating material. The bearing for the roller, the sleeve and the tip may be formed of a composite body having a ceramic sintered body portion and and a metal portion secured and fitted thereto by an intermediate member which is elastically and plastically deformed at the time of the usage. The composite structure formed by fitting is usable for other applications.

Abstract: A continuous hot dipping apparatus which comprises a slide bearing structure of a bearing and a roll shaft which is of a combination of a ceramic material and a solid lubricant material, and which has good wear resistance and long term durability. A heat resistant steel is provided, which is used in a molten metal of hot dipping and which essentially consists of 0.15-0.30% C, not more than 20% Si, not more than 2% Mn, 20-30% Cr, 10-20% Ni and not less than 50% Fe.

Abstract: A molten metal plating apparatus includes a roller rotatably supported by a bearing in a molten metal bath, the roller having a shaft sliding portion, the bearing having a sliding portion, both the shaft sliding portion and the sliding portion being made of ceramic sintered body, at least one of both the shaft of the roller and the bearing being made of a ceramic sintered body containing a solid lubricating material. The bearing for the roller, the sleeve and the tip may be formed of a composite body having a ceramic sintered body portion and and a metal portion secured and fitted thereto by an intermediate member which is elastically and plastically deformed at the time of the usage.

Abstract: The invention relates to a molten metal plating apparatus including a roller rotatably supported by a bearing in a molten metal bath, the roller having a shaft sliding portion, the bearing having a sliding portion, both the shaft sliding portion and the sliding portion being made of ceramic sintered body, at least one of both the shaft of the roller and the bearing being made of a ceramic sintered body containing a solid lubricating material. The invention also relates to a die casting machine having a sleeve and a plunger tip both made of ceramic sintered bodies at least one of which contains a solid lubricating material. The bearing for the roller, the sleeve and the tip may be formed of a composite body having a ceramic sintered body portion and and a metal portion secured and fitted thereto by an intermediate member which is elastically and plastically deformed at the time of the usage. The composite structure formed by fitting is usable for other applications.