Kawahigashi
Haruko Kawahigashi, Tokyo JP
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20090059932 | METHOD OF DATA TRANSMISSION IN COMMUNICATION SYSTEM - A communication system includes a source node for transmitting data and general nodes that function as relay nodes for relaying the data or destination nodes for receiving the data. Data encoding is performed in each node of the communication system. The source node is linked to the general nodes by one or more independent paths. The number of independent paths from the source node to each of the general nodes is counted. A tap-proof index is calculated based on the maximum number of independent paths and the size of a set of elements formed by the encoded data. The security level against tapping is determined according to the value of the tap-proof index. | 03-05-2009 |
20090290588 | METHOD OF SELECTING NETWORK PATH AND COMMUNICATION SYSTEM - A method of selecting a network path for a network coding communication includes initializing a length of each of links; searching for an independent path from a source node to one of target nodes based on the length of each of the links; multiplying a predetermined factor to the length of each of the links used in the independent path; repeating the searching and the multiplying for all the target nodes; extracting the links and the nodes used in the independent path; generating a subgraph with the links and the nodes extracted at the extracting; and selecting the network path based on the subgraph. | 11-26-2009 |
Hideto Kawahigashi, Fuji-Shi JP
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20090011888 | AUTOMATIC TRANSMISSION HYDRAULIC PRESSURE CONTROL APPARATUS - An automatic transmission hydraulic pressure control apparatus decreases a hydraulic pressure lower limit value as much as possible without causing a non-operating zone of a solenoid valve to be included in a control region of the solenoid valve due to product variation. First and second determinations are alternately performed to determine if a solenoid command value is in a non-operating zone by alternately changing the solenoid command value to decrease and increase the actual hydraulic pressure in a step-like manner. The solenoid command value of an immediately previous cycle in which the first determining section determined that the solenoid command value was not in the non-operating zone is set as a solenoid command limit value when one of the first and second determining sections has determined that the solenoid command value is in the non-operating zone. | 01-08-2009 |
Masato Kawahigashi, Chiyoda-Ku JP
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20150014278 | CURRENT SWITCH - A current switch includes a blade-shaped movable contact that extends in a radial direction from a rotation center, and that reciprocates such that a free end of the movable contact draws a rotation locus, a fixed contact that includes a plurality of pairs of energizing contacts that come into and out of contact with the movable contact, a movable arcing contact that is provided on the movable contact, fixed arcing contacts that are provided on a pair of energizing contacts, and a pair of permanent magnets that are arranged within the pair of energizing contacts adjacent to the fixed arcing contacts. | 01-15-2015 |
Masato Kawahigashi, Tokyo JP
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20090261069 | GAS-INSULATED SWITCHING APPARATUS - [Object] A compact gas-insulated switching apparatus in which the space for arranging a gas breaker module may be reduced, and the space for arranging a circuit wiring may be reduced in the vertical direction is proposed. | 10-22-2009 |
20090268379 | Gas-Insulated Switchgear - In a gas-insulated switchgear provided with three-phase main bus bars consisting of single-phase bus bars arranged in parallel with one another and three-phase circuit breakers that are arranged in parallel with one another in a direction perpendicular to the main bus bar and each have two connecting terminals that are spaced a predetermined distance apart from each other, the main bus bars are arranged between two connecting terminals of each of the circuit breakers. | 10-29-2009 |
20120103645 | GAS-INSULATED BUS - Gas-insulated bus is provided with: current-carrying conductor disposed along axial direction of metallic container that is filled with insulating-gas; shield fitting through which passes current-carrying conductor and that has depressed portion formed on portion of barrel-shaped outer surface; insulating support that has second end thereof fixed in depressed portion of shield fitting and has first end thereof fixed to metallic-container, and that supports current-carrying conductor via shield fitting; internal conductor being implanted in second end of insulating support and being, along with second end, positioned in depressed portion and fixed to shield fitting; and contact being attached to inner surface of shield fitting, being disposed in space formed on inside of shield fitting, and that makes contact with current-carrying conductor so as to maintain shield fitting and current-carrying conductor at same electric potential, wherein internal conductor has such shape that internal conductor and shield fitting together form barrel-like profile. | 05-03-2012 |
20130033798 | SWITCHGEAR - A switchgear having an electrified conductor accommodated in a tank in which insulating gas is contained includes a fixed contact connected to the electrified conductor, a movable contact installed to be contactable and separable to and from the fixed contact, an insulating rod that is externally extended from inside of the tank while being electrically insulated from the tank and turned by an operation device, and an insert that is extended from an end of the insulating rod toward the movable contact and is rotatably supported by a holding part installed in the electrified conductor. A flange part that is installed in the insert at a position where the holding part opposes the insulating rod and is extended in a substantially right-angle direction with respect to a direction of a rotation axis of the insulating rod is formed on the insert. | 02-07-2013 |
20130248341 | SWITCH - A switch includes a fixed contact fixed in a container in which an insulating gas is filled and a movable contact provided to be reciprocatingly movable with respect to the fixed contact and configured to come into contact with and separate from the fixed contact. The switch further comprises a pin provided in the container and configured to move along an arcuate track. A groove in which the pin is fit and is movable is formed in the movable contact. The groove includes a linear groove linearly extending substantially perpendicularly to a moving direction of the movable contact and substantially in parallel to a plane including the moving track of the pin and an arcuate groove that communicates with the linear groove and overlaps the moving track of the pin. The pin moves in the linear groove, whereby the movable contact reciprocatingly moves. | 09-26-2013 |
20130279084 | GAS-INSULATED SWITCHGEAR - A gas-insulated switchgear includes: a circuit breaker; a connection bus bar; a first disconnect switch; a second disconnect switch; a line bus bar; a main bus bar; and an abutment. The circuit breaker includes first and second branch outlets provided on a side surface of a cylindrical circuit breaker tank. The connection bus bar has one end connected to the first branch outlet. The first disconnect switch is connected to the other end of the connection bus bar. The second disconnect switch is connected to the second branch outlet. The line bus bar is led out from the second disconnect switch in a horizontal direction. The main bus bar is arranged above the second disconnect switch coaxially with the second branch outlet. The abutment is fixed to a top portion of the second disconnect switch and supports the main bus bar from below. | 10-24-2013 |
Shougo Kawahigashi, Kanagawa JP
Patent application number | Description | Published |
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20090009230 | Semiconductor device - A semiconductor device includes a level shift circuit to convert an input signal having an amplitude from a first power supply potential to a second power supply potential to a signal having an amplitude from the first power supply potential to a third power supply potential, a first output portion to output voltage generated from the third power supply potential to an output terminal based on the output of the level shift circuit, the first output portion including a NMOS transistor, and a second output portion to output voltage generated from the third power supply potential to an output terminal based on the output of the level shift circuit, the second output portion including a PMOS transistor. | 01-08-2009 |
Toshitaka Kawahigashi, Kahoku-Shi JP
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20110258311 | MONITORING APPARATUS, MONITORING METHOD AND COMPUTER READABLE MEDIUM FOR MONITORING - There is provided a monitoring apparatus including a monitoring unit that monitors an operating situation of nodes over a network based on a predetermined monitoring parameter, a memory that records the operating situation monitored by the monitoring unit, and a changing unit that changes the monitoring parameters based on a past operating situation recorded by the memory. | 10-20-2011 |
Toshitaka Kawahigashi, Ishikawa JP
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20120076001 | NODE MONITORING APPARATUS, NODE MONITORING METHOD, AND COMPUTER READABLE MEDIUM - There is provided a node monitoring apparatus including: a node identification unit that identifies a function of a node present in a network; a parameter setting unit that sets a parameter for monitoring processing on the node in accordance with the function identified by the function identification unit; and a node monitoring unit that performs the monitoring processing on each of the nodes based on the parameter set by the parameter setting unit. | 03-29-2012 |
20130031248 | NODE DETECTION APPARATUS, NODE DETECTION METHOD AND COMPUTER READABLE MEDIUM - There is provided a node detection apparatus including: an acquisition section that acquires address information of communication equipment managed by a DNS server; an operation confirmation section that confirms operations of the communication equipment based on the address information acquired by the acquisition section; and a node registration section that registers the communication equipment having the address information acquired by the acquisition section as an operating node, based on a result of the operation confirmation by the operation confirmation section. | 01-31-2013 |
20130070639 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND COMPUTER READABLE MEDIUM - There is provided a node detection apparatus including: a first acquisition section that acquires identification information peculiar to a communication device in accordance with a first communication protocol; a second acquisition section that acquires the identification information peculiar to the communication device in accordance with a second communication protocol; and an identification section that identifies the communication device that complies with both of the first communication protocol and the second communication protocol based on the identification information acquired by the first acquisition section and the identification information acquired by the second acquisition section. | 03-21-2013 |
Yoshitsugu Kawahigashi, Osaka JP
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20130100598 | DISPLAY DEVICE - Provided is a display device which can achieve a thickness reduction and allows a panel protection plate to be replaced with ease. The display device is provided with: a liquid crystal display panel ( | 04-25-2013 |
Yoshitsugu Kawahigashi, Osaka-Shi JP
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20140133181 | ILLUMINATION DEVICE AND DISPLAY DEVICE - This illumination device ( | 05-15-2014 |
20140146562 | ILLUMINATION DEVICE AND DISPLAY DEVICE - A backlight unit comprises a light source, a light guide plate and a frame. The light guide plate comprises a light guide and a low-refractive-index layer. The refractive index of the low-refractive-index layer is less than the refractive index of the light guide. A plurality of prisms for gradually reducing the angle of incidence of light coming from the light source with respect to the rear surface of the light guide are provided to the front surface or rear surface of the light guide. A plurality of prisms for totally reflecting forward the light coming from the light source are provided to the rear surface of the light guide plate. The frame comprises walls for surrounding the light source and the light guide plate. The width of the upper side of the walls and the width of the lower side thereof are substantially equal. | 05-29-2014 |
Yutaka Kawahigashi, Kawasaki JP
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20090310328 | FOLDING ELECTRONIC DEVICE AND DEVICE FOR REDUCING UNDESIRED PLAY IN HINGE DEVICE - A folding electronic device includes a fixed casing, a movable casing, and a hinge device connecting the fixed casing and the movable casing to allow rotational movement of the movable casing. The movable casing is openable with respect to the fixed casing. The hinge device has an axis extending over a land portion of the fixed casing and a land portion of the movable casing. A projection is provided in any of the following: at least one of end faces of the land portion of the fixed casing and an end face, opposed to one of the end faces, of the land portion of the movable casing. As the movable casing changes from a closed state to an open state, a gap between the projection and an end face opposed to the projection is increased. | 12-17-2009 |
20110157797 | CASING, ELECTRONIC APPARATUS, AND METHOD AND MACHINE FOR FORMING CASING - A casing includes a first casing and a second casing that sandwich an elastic member, wherein the first casing includes a pressed portion that is pressed by the elastic member, and an engaging portion adjacent to the pressed portion that has a flange protruding toward the pressed portion that engages with the second casing, and the pressed portion is flat in a region corresponding to at least the engaging portion. | 06-30-2011 |
20140319730 | CASING, ELECTRONIC APPARATUS, AND METHOD AND MACHINE FOR FORMING CASING - A casing includes a first casing and a second casing that sandwich an elastic member, wherein the first casing includes a pressed portion that is pressed by the elastic member, and an engaging portion adjacent to the pressed portion that has a flange protruding toward the pressed portion that engages with the second casing, and the pressed portion is flat in a region corresponding to at least the engaging portion. | 10-30-2014 |