Japan Synthetic Rubber Co., Ltd.

Mitsubishi Heavy Industries Limited

Nitto-denko Corporation

Jsr Corporation

Mitsubishi Electric Corporation

Hironobu Shinohara

Yoshinori Yoshida

Hiroshi Shirasawa

Shinji Kiuchi

Yasutake Akizuki

Toshiki Fukui

Hiroshi Fujimoto

Yuichi Tanaka

Noboru Yamahara

Yoshinobu Suzuki

Kazuhiko Yamamoto

Naraji Sakamoto

Toshihiro Ohtsuki

Yasuo Hara

Kiyonobu Kubota

Izumi Hanari

Tutomu Kobayashi

Nobuyuki Sonobe

Tetsuo Fujihara

Kiyohiro Horie

Toshiaki Matsumura

A nuclear power plant control system including: a detection unit for detecting a specific event occurring in the nuclear power plant; an on-site equipment handling the event; and a majority decision judging device and an on-site equipment control device which constitute a plurality of control devices respectively operating independently. Each of the control devices includes a plurality of arithmetic units which perform arithmetic processes independently and in parallel based on a detection result of the detection unit, and output a signal for controlling the on-site equipment according to the results of operations of the arithmetic processes. The plurality of arithmetic units perform a matching process for harmonizing process statuses of the arithmetic processes of respective arithmetic units with each other when starting up the control devices, and after completing the matching process, respectively perform the arithmetic processes independently and in parallel.

Control device and nuclear power plant control system

A control system allows controlling a nuclear facility in an evacuation area. The control system includes a control device in ordinary use disposed in a non-evacuation area, an emergency control device&#x2014;for emergency in the evacuation area, a plant control facility connectable to the control device&#x2014;and the emergency control device, a signal switching unit that switches from a normal coupling to an emergency coupling based on an emergency switch signal, a first selector switch in the non-evacuation area, a second selector switch-in the evacuation area, an AND circuit configured to output the emergency switch signal to the signal switching unit in the case where the emergency switch signal is input from the first selector switch and the emergency switch signal is input from the second selector switch.

Control system for nuclear facility and control method for nuclear facility

A nuclear power plant control system () includes a control button () which receives an operation for controlling a control target device (), a notification lamp () which notifies that a control signal corresponding to the operation received by the control button () arrives at a predetermined position on a path connected from a control panel () to the control target device (), and a control signal inhibition unit () which inhibits a control signal from arriving at the control target device () in midstream between the predetermined position on the path and the control target device () in response to an operation received by a test permission button ().

Nuclear power plant control system and method of testing nuclear power plant

A nuclear power control system includes: a safety protection apparatus which outputs a first safety mode operating signal while outputting a first unsafety mode operating signal; a CCF apparatus that outputs a second safety mode operating signal; and a signal input/output circuit that is connected to the safety protection apparatus and the CCF apparatus. The signal input/output circuit includes an OR circuit that outputs a third safety mode operating signal based on the presence or absence of an input of the first safety mode operating signal and the second safety mode operating signal; a NOT circuit that is connected to the output side of the OR circuit; and an AND circuit that outputs a third unsafety mode operating signal, and the presence and absence of an input of a first unsafety mode operating signal.

Control system and method for nuclear power facility

A reactor shutdown system includes a reactor, a control-rod drive unit that can drive a control rod in pulling and inserting directions with respect to a fuel assembly, a power source that can supply power to the control-rod drive unit, and a power converter that is provided between the control-rod drive unit and the power source, in which when power supply is cut off, the control-rod drive unit inserts the control rod into the fuel assembly to stop nuclear reaction in the reactor, and the reactor shutdown system includes a reactor trip breaker provided between the power converter and the control-rod drive unit, a safety protection-system device that controls the reactor trip breaker to cut off power supply to the control-rod drive unit, and a CCF device that controls the power converter to cut off power supply to the control-rod drive unit.

Reactor shutdown system

A conductive polymer film having an antistatic function and an electromagnetic wave shielding function, and also having excellent optical properties such as transparency even if the film is arranged in the interior of LCD. The conductive polymer film comprises a polymer film and a conductive polymer adhered to the surface thereof, wherein the conductive polymer comprises polythiophene or polythiophene derivatives, the polymer film comprises an acetyl cellulose material or a norbornene material, a layer of the conductive polymer has a thickness of 3 &#x3bc;m or less, and the conductive polymer film has a visible light transmission of 78% or more and a surface resistivity of 10-10&#x3a9;/square.

Conductive polymer film and polarizing plate using the same

Disclosed herein is a digital audio tone evaluating system comprising an analyzer for subjecting a digital signal related to voice and/or music to signal processing, thereby operating a factor which expresses the auditory tone quality of the voice and/or the music by the digital signal in a digitized form. The system can objectively evaluate auditory tone quality by digital audio.

Digital audio tone evaluating system

This invention relates to a liquid crystal display panel comprising a structural element having therein at least two functions such as, e.g., a transparent conducting film, a protective film for a polarizing film, a phase retardation film, a color filter, a light guide sheet, a light diffusion sheet, and a light condensing sheet, wherein the at least two functions of said structural element are performed by a sheet or film and said film is constituted of a thermoplastic resin having norbornane repeat units. This liquid crystal display panel permits practical use of films with a plurality of liquid crystal display panel functions that have not been used in practice by the conventional plastic films, by using films having high optical properties, heat resistance, moisture resistance, dimensional stability, moldability, and mechanical strength, resulting in the ability to reduce the number of films needed, the formation of a thinner and reduced weight panels, and in addition providing excellent display image sharpness.

Liquid crystal display panel

An optical film with a pattern formed by applying a photosensitive composition to the surface of a transparent film and by irradiating the photosensitive composition. The transparent film is made of a thermoplastic resin having a retardation of 30 nm or less, a deflection temperature under load of 100.degree. C. or higher, a transmittance in the visible light region of 85% or higher, and a refractive index of 1.45-1.59. The optical film has optical characteristics as excellent as glass. It has superior heat resistance, more flexible, more easily processed, and lighter in weight than glass bases.

Optical Film

A liquid crystal display panel comprising structural elements such as transparent conductive films, polarizers, optical retardation films, color filters, light guide plates, light diffusing films, and converging films is disclosed. At least one of the structural elements comprises a layer made from a specific polymer having a saturated water absorption of 0.1-1% by weight at 23.degree. C. and obtained by the ring-opening polymerization of a specific norbornene derivative with a polar group in the norbornene structure. The liquid crystal display panel is light and convenient to use, excellent in the distinctness of image and productivity, and exhibits no deterioration in image quality during the use in severe, high temperature and high humidity conditions for a long period of time.

A thermoplastic resin composition comprising (a) 50-99% by weight of a polyarylenesulfide resin and (b) 50-1% by weight of a norbornene-type resin as essential components is disclosed. This resin composition possesses excellent stiffness properties and high heat resistance, and exhibits only small anisotropic properties and superior moldability during the molding operation, and is useful for molding various electronic parts, household electric or electronic parts and articles. Those having a Vicut softening point of 200.degree. C. or higher are especially useful for sealing electronic parts or photo-semiconductors.

Thermoplastic resin composition

Semiconductor chips are packaged by injection molding while continuously feeding a lead frame, characterized by using for the injection molding a hydrogenated polymer (A) obtained by the hydrogenation of a polymer obtained by ring-opening polymerization of a specific norbornene derivative or a monomer mixture comprising said norbornene derivative and other monomer copolymerizable therewith, wherein said injection molding for the packaging is carried out under the conditions of a resin temperature in the range of 280.degree. C. to 360.degree. C.; the molding temperature in the range of Tg -80.degree. C. to Tg +10.degree. C., wherein Tg is the glass transition temperature of the hydrogenated polymer (A) is Tg; and the injection pressure in the range of 10 to 200 kgf/cm.sup.2.

Packaging for semiconductors

A transparent sheet having a heat-transferred image thereon, characterized in that the transparent sheet per se consists of a thermoplastic resin having a norbornene skeleton and the image is composed of a toner adhered to the sheet by heat-transfer. The toner is adhered directly to the sheet through no adhesive. The transparent sheet is suitable for uses in conventional black-and-white and color copying machines, overhead projectors and the like.

Transparent sheet having heat-transferred image thereon

Slurry composition comprising a solid fuel powder, water and a compound having in its molecule a tricyclodecane or tricyclodecene skeleton and a sulfonic acid group attached to the skeleton.

Growing community of inventors

Tokyo, Japan

Hironobu Shinohara