Asahi Kasei Chemicals Corporation

Fujitsu Corporation

Asahi Kasei Kabushiki Kaisha

Kazuhiro Shibuya

Akira Miyamoto

Hiroshi Hachiya

Toshiharu Sakuma

Yoshio Kawai

Yasuyuki Mitsumori

Hideki Matsui

Masayuki Ono

Kazuharu Yasuda

Wen-Yi Su

Nobutsugu Nanba

Tatsuya Kawasumi

Shigeharu Murakami

Naomi Yokoyama

Yutaka Moriyama

Chung Neng Wu

Kazuhiko Aoki

A transmitter used in a transmission system in which a first network is connected, via a second network, to a third network, the transmitter being arranged between the first network and the second network, the transmitter includes: a generator configured to specify an identifier of data area in which communication data affected by a failure occurred in the first network are stored, in a frame transmitted from the second network, and to generate failure information associated with the identifier specified; and a transmitter configured to transmit the failure information generated by the generator, via the second network, to another transmitter arranged between the second network and the third network.

Transmitter and transmission system

A plug-in card storage device includes a plug-in card including a memory to store received input data and an error correction circuit to be equipped electrically connectable to the memory and to correct an error in the input data outputted from the memory; a device main body to have the plug-in card implemented therein; and a processor to determine whether or not to activate the error correction circuit, by calculating a reliability index value of the plug-in card based on an error rate of the memory provided in the plug-in card implemented in the device main body, so as to approximate the reliability index value to a reference value.

Plug-in card storage device and error correction control method thereof

A polycarbonate thin molded article containing a resin composition, the resin composition containing: 100 parts by weight of a resin (A), the resin (A) being an aromatic polycarbonate or a resin mainly containing an aromatic polycarbonate; 0.1 to 200 parts by weight of an inorganic compound (B); 0.001 to 10 parts by weight of at least one compound (C) selected from an organic acidic compound and an organic acidic compound derivative; and 0.001 to 1 part by weight of at least one metal salt (D) selected from an organic acid alkali metal salt and an organic acid alkaline earth metal salt, a part corresponding to at least 50% of the surface area of the polycarbonate thin molded article having a thickness of less than 0.7 mm, and a shrinkage ratio S1(%) in a molding flow direction of the polycarbonate thin molded article upon its being left under an atmosphere of 170&#xb0; C. for 30 minutes satisfying the following formula (1):&#x2212;60&#x3c;1&#x3c;&#x2212;1&#x2003;&#x2003;formula (1).

Aromatic polycarbonate molded article and resin composition

According to the present invention, an aromatic polycarbonate resin composition comprising: a resin component (A) mainly comprising an aromatic polycarbonate; a reinforcing agent and/or a filler (B); and an aromatic sulfonic acid and/or an ester thereof (C), wherein a mixture consisting of said component (B) and said component (C) has a pH of 4 to 8 when measured in accordance with JIS-K5101, and said composition comprises 1 to 200 parts by weight of said component (B) and 0.001 to 5 parts by weight of said component (C) based on 100 parts by weight of said component (A) is provided.

Aromatic polycarbonate resin composition and production method thereof

A flame retardant aromatic polycarbonate resin composition comprising 100 parts by weight of an aromatic polycarbonate (A), 0.01 to 0.5 part by weight of branched metal oxide particles (branched metal oxide aggregates and/or branched metal oxide agglomerates) (B), 0.0001 to 0.2 part by weight of an alkali metal salt (C) of an organic sulfonic acid, and 0.01 to 0.5 part by weight of a fluoropolymer (D), the branched metal oxide particles (B) being dispersed in a mixture of components (A), (C) and (D), wherein at least 70% of the branched metal oxide particles (B) have a diameter within the range of from 10 to 200 nm.

Flame-retardant aromatic polycarbonate resin composition

An aromatic polycarbonate resin composition having: 100 parts by weight of a resin component (A) mainly having an aromatic polycarbonate, 0.1 to 200 parts by weight of a solid inorganic compound (B), at least one compound (C) selected from the group consisting of an organic acid, an organic acid ester, and an organic acid anhydride, 0.001 to 1 part by weight of at least one organic acid metal salt (D) selected from the group consisting of an organic acid alkali metal salt and an organic acid alkaline earth metal salt, and 0.01 to 1 part by weight of a fluoropolymer (E), wherein compound (C) is present in an amount wherein a mixture of compounds (B) and (C) exhibits a pH value of from 4 to 8.

Flame retardant aromatic polycarbonate resin composition

A molded article produced by injection-molding a molten form of a flame-retardant aromatic polycarbonate resin composition comprising: 100 parts by weight of an aromatic polycarbonate (A) (Mw: 17,000 to 35,000), 0.01 to 3 parts by weight of inorganic compound particles (B) (average diameter: 10 nm to 10 &#x3bc;m), 0.001 to 0.5 part by weight of an alkali metal salt (C) of an organic sulfonic acid, and 0.01 to 0.5 part by weight of a fluoropolymer (D), wherein the largest FL/t ratio of the molded article is 50 or more, wherein FL is a flow length of the composition in a mold and t is a thickness of the molded article, the FL/t ratios being obtained by measuring the thicknesses of the molded article at portions corresponding to flow paths (L) (from a gate to points at which the flow of the composition stops) of the composition in the mold during the molding, and calculating an integral of (dL/T') along each (L) (dL: length of a segment of (L), t&#x2032;: thickness of the molded article at a portion corresponding to the segment), wherein the calculated integrals are defined as the FL/t ratios.

Moldings of flame-retardant aromatic polycarbonate resin compositions

Disclosed is a method for producing a flame retardant polycarbonate resin composition by using a screw extruder, which comprises extruding a resin component (mainly comprising a polycarbonate) and an organic phosphorus compound having an acid value of not more than 0.1 mg KOH/g while kneading, wherein the temperature of the resin component in the extruder is not higher than 300&deg; C., and the residence time of the resin component in the extruder is not more than 40 seconds.

Method for producing a flame retardant polycarbonate resin composition

Terminal ports, line ports, and various process boards can be freely connected to a TDM bus and an ATM bus through a TDM bus slot and an ATM bus slot. Therefore, a terminal port for terminating a time-division multiplexing, a terminal port for terminating an asynchronous transfer mode, a terminal port for terminating both, etc. can be freely combined in the same unit. Additionally, the communications system can be easily modified using the same unit by changing a package device of the line port. Furthermore, the functions realized by the unit can be flexibly extended by changing the package device of various process board.

Fixed-length cell data and time-division data hybrid multiplexing apparatus

When passing-particular-equipment identification data which indicates passing particular transmission equipment has been detected, two opposing CLAD blocks exchange items of information on the transmission or reception addresses of ATM cells in the respective CLAD blocks, via an exchange (&num; ). Besides, each CLAD block or an ATM cell switch block alters the route of the cell inside the transmission equipment, on the basis of the exchanged information. In consequence, the ATM cell left intact can be relayed toward its destination without causing voice data itself to pass through the exchange (&num; ). As a result, the numbers of times of coding/decoding and cell assembling/disassembling operations for the voice data match the numbers of times corresponding to one link of transmission equipment.

Digital one-link relaying system for communication data in a cell transmission network

Disclosed is a flame retardant polycarbonate resin composition having an improved melt fluidity, which comprises (A) an aromatic polycarbonate having a weight average molecular weight of from 12,000 to 25,000, (B) a styrene-acrylonitrile-butyl acrylate copolymer having a butyl acrylate unit content of from 1 to 30% by weight, (C) a complex rubber graft copolymer obtained by a process comprising graft-polymerizing at least one graft-polymerizable monomer onto a complex rubber comprising a polyorganosiloxane and a polyalkyl (meth)acrylate, (D) a phosphoric ester, and (E) a tetrafluoroethylene polymer. The resin composition of the present invention not only has excellent melt fluidity, but is also excellent in flame retardancy, impact resistance and modulus of elasticity. The resin composition of the present invention can be advantageously used for producing various types of shaped articles (including those for use in office automation machines and in electric and electronic equipment), and is especially advantageous for producing small-thickness shaped articles.

Flame-retardant polycarbonate resin composition with excellent melt flowability

For the purpose of efficiently determining the transmission capacity of a digital relay transmission path, adjusting the phase between commands and responses, and detecting faults, in the case in which a judgment is made that the image information transmission path capacity between communication apparatuses is smaller than or inferior to the performance of the communication apparatuses, when a training signal for the purpose of performing a circuit check is sent from a transmitting-side facsimile machine, the transmitting-side communication apparatus intentionally sends a failed training signal to the receiving-side communication apparatus, this giving notice of an abnormal termination, in response to which the transmitting-side facsimile machine performs a fallback operation so as to reduce the communication speed to a speed at which relaying is possible between the communication apparatuses before sending the image information.

Growing community of inventors

Yokohama, Japan

Kazuhiro Shibuya