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Hiroshi Kurihara

Hiroshi Kurihara, Mobara JP

Patent application numberDescriptionPublished
20080259088Display device - Disclosed herein is a display device in which input data is written to a RAM as current frame data and read from the RAM as preceding frame data. Then, the current frame data and the preceding frame data are added up in a correction circuit and the result is subjected to an overdriving processing. After this, the processed (over-driven) data is assumed as current frame corrected data, which is then written to the RAM. The written corrected data is read from the RAM and subjected to a double-speed driving processing.10-23-2008
20090040157Liquid Crystal Display Device For Displaying Video Data - A liquid crystal display device for displaying video data having a detection circuit for detecting a luminance distribution based on video data which is inputted, the luminance distribution being indicative of generation frequency of gradations in each of divided region which includes a plurality of gradations. The display device includes a determination circuit for determining at least one of a plurality of divided regions of higher generation frequency of gradation than that of other divided regions based on the luminance distribution, a correction circuit for correcting the video data so as to make a luminance characteristic of the at least one of the plurality of divided regions of higher generation frequency of gradation more abrupt than a luminance characteristic of the other divided regions, and a liquid crystal display panel for displaying the corrected video data. A width of the divided region is changeable.02-12-2009
20090058890Display device - When one frame period of two consecutive frame periods is a frame A and a next frame period subsequent to the frame A is a frame B, a tone requested from an external system is displayed in each sub-pixel by displaying two tones during the two frame periods including the frame A and the frame B, display data of an image A displayed during a period of the frame A and display data of an image B displayed during a period of the frame B are display data generated based on the display data and a video line driving circuit supplies, as tone voltages corresponding to the display data, a first set of tone voltages to video lines during the period of the frame A and a second set of tone voltages to the video lines during the period of the frame B subsequent to the frame A.03-05-2009
20100002024Display Device - A display device includes a display panel having a plurality of pixels, a drive circuit inputting a drive voltage to the plurality of pixels, and a display control device controlling and driving the drive circuit and to which display data is input from an external apparatus, in which a temperature detecting sensor is included. The display control device has a display bit reduction circuit. In a high-temperature operation mode when a temperature equal to or more than a predetermined temperature is detected at the temperature detecting sensor, the display bit reduction circuit ignores bits other than the highest-order bit of the display data input from the external apparatus and sends only the data of the highest-order bit of the display data input from the external apparatus to the drive circuit.01-07-2010
20110102708Display device and planar light source device - The present invention relates to a technique which can make a backlight used in a liquid crystal display device thin and light-weighted. The present invention provides a liquid crystal display device which includes a display panel and a backlight which is arranged behind the display panel, wherein the backlight includes a film-like light guide member, a film-like light semi-transmissive member which is adhered to a first surface of the light guide member which faces the display panel in an opposed manner, a film-like reflective member which is adhered to a back surface of the light guide member opposite to the first surface, and a spot light source which is arranged at a position of the light guide member at which light is incident on the light guide member from the first surface or the back surface, and a refractive index of the light semi-transmissive member is set smaller than a refractive index of the light guide member.05-05-2011

Patent applications by Hiroshi Kurihara, Mobara JP

Hiroshi Kurihara, Chiba-Ken JP

Patent application numberDescriptionPublished
20100321423LIQUID CRYSTAL DISPLAY CONTROL DEVICE - There is provided a liquid crystal display control device which can display pictures in a magnification mode by using only a memory having a low-speed access and a low storage capacity. When a video signal has intermediate resolution or less, the enlargement processing is performed by a frame memory, a line memory and an enlargement processing control circuit. If the input operation and the output operation to and from the frame memory are synchronized with each other, it is sufficient for the frame memory to have a storage capacity of two lines. When the video signal has the same high resolution as a liquid crystal display panel, the video signal is output through a gate circuit to a display timing generating circuit, and it is displayed in a through mode. In this case, no processing is performed by the frame memory or the like.12-23-2010

Hiroshi Kurihara, Kawasaki JP

Patent application numberDescriptionPublished
20090132367ELECTRONIC ADVERTISEMENT SYSTEM - There is disclosed an electronic advertisement system including: an advertisement displaying device; a local area network that transmits a summary of a content to a terminal; a wide area network that has at least one local area network and gains access to a detail of the content corresponding to receiving the summary by the terminal; and a center device that stores the details of the content, monitors the access to the stored detail of the content, and changes the schedule of an advertisement displayed on the advertisement displaying device located near the local area network based on the monitored result.05-21-2009
20090132545Contents management system - A contents management system provides a user who already downloaded valid contents with a mechanism capable of downloading the same contents in a duplication manner. A system for delivering contents checks whether contents which are about to be purchased by the user are the same as contents which are in a validity term and which are already downloaded by the user. If so, the system prepares a new contents ID, DL information and meta information for duplicated buying, and makes duplicated buying of the same contents possible.05-21-2009
20090313380DISTRIBUTION SYSTEM - The present invention promotes the use of contents distribution by multicast, and enables users to stop viewing without needing special processing in a terminal, and to restart viewing in the same terminal as that at stop time or a different terminal, thus increasing users' usability and use opportunities. In a distribution system including a service server, a multicast distribution server, and a unicast distribution server, the service server, in a first access from a PC, selects the multicast distribution server as a distribution server, and selects the unicast distribution server as a distribution server after stopping.12-17-2009
20100050274CONTENT CONTROL SYSTEM - A content control system capable of controlling delivery destinations of user contents in respective groups, identifying each group through which each content is delivered, and delivering information/advertisements according to the attribution information of the content. In a content control server, group identifying information is set in each user content to be uploaded to or downloaded from a group memory area corresponding to a gateway ID from a terminal through a gateway having a plurality of its subordinate terminals. The information identifies each gateway through which each object content is delivered according to the gateway ID. The control system controls the delivery destination of each content according to the combination of the content delivery route and a table prepared in the content control server.02-25-2010

Hiroshi Kurihara, Tokyo JP

Patent application numberDescriptionPublished
20080305795INFORMATION PROVISION SYSTEM - A system includes: a user-operated terminal operated by a user holding a mobile communication terminal; and an information notification apparatus capable of communicating with the mobile communication terminal, wherein the user-operated terminal includes: spot identification information acquisition means for acquiring spot identification information; and spot registration requesting means for requesting registration of a spot by transmitting the spot identification information and user identification information identifying the user operating the user-operated terminal to the information notification apparatus, and the information notification apparatus includes: spot registration means for registering location information about the spot corresponding to the spot identification information for the user corresponding to the user identification information transmitted from the user-operated terminal; terminal location detection means for detecting the current location of the mobile communication terminal; and notification means for notifying the mobile communication terminal if the detected current location of the mobile communication terminal is within a preset distance from the location of the registered spot.12-11-2008
20090303992COMMUNICATON CONTROL SYSTEM AND COMMUNICATION CONTROL METHOD - A system, which is connectable to a first apparatus capable of data communication using a data communication protocol via a network where each session is managed by a session management protocol, includes: a connecting section which, if ID about the first apparatus exists in a storing section when a start instruction is received from the first apparatus, registers ID about a session corresponding to the start instruction in association with the ID about the first apparatus, and establishes a path enabling data communication for the first apparatus in the network using the session management protocol; and a providing section which, upon receiving the ID about the session from a second apparatus, transmits confirmation information according to the result of confirmation about whether the ID about the first apparatus is in association with the ID about the session.12-10-2009

Patent applications by Hiroshi Kurihara, Tokyo JP

Hiroshi Kurihara, Saitama-Ken JP

Patent application numberDescriptionPublished
20110118468PROCESS FOR PRODUCING 6-ARYLOXYQUINOLINE DERIVATIVE AND INTERMEDIATE THEREFOR - Disclosed is a process for producing 6-aryloxyquinoline derivatives useful as insecticides or fungicides for agricultural and horticultural use. The process comprises a cyclization reaction step of reacting an anthranilic acid derivative represented by general formula (1) with a ketone in the presence of an acid to obtain a quinolone derivative and a condensation reaction step of reacting the quinolone derivative with a halogen compound or an acid anhydride to obtain a quinoline derivative.05-19-2011