Patents by Inventor Koichi Chida
Koichi Chida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10575811Abstract: An X-ray diagnosis apparatus comprises processing circuitry. The processing circuitry is configured: to generate first subtraction image by using a first image acquisition condition; to generate second subtraction image by using a second image acquisition condition that are substantially same as the first image acquisition condition; to generate first color image by using a first processing condition, each pixel of the first color image having a color according to a temporal transition at a corresponding position of the first subtraction image; to generate, by using a second processing condition that is substantially same as the first processing condition, second color image, each pixel of the second color image having a color according to a temporal transition at a corresponding position of the second subtraction image; and to cause a stereoscopic image to be displayed on the basis of the first color image and the second color image.Type: GrantFiled: June 27, 2017Date of Patent: March 3, 2020Assignees: TOHOKU UNIVERSITY, Canon Medical Systems CorporationInventors: Satoru Ohishi, Koichi Chida
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Publication number: 20170367673Abstract: An X-ray diagnosis apparatus comprises processing circuitry. The processing circuitry is configured: to generate first subtraction image by using a first image acquisition condition; to generate second subtraction image by using a second image acquisition condition that are substantially same as the first image acquisition condition; to generate first color image by using a first processing condition, each pixel of the first color image having a color according to a temporal transition at a corresponding position of the first subtraction image; to generate, by using a second processing condition that is substantially same as the first processing condition, second color image, each pixel of the second color image having a color according to a temporal transition at a corresponding position of the second subtraction image; and to cause a stereoscopic image to be displayed on the basis of the first color image and the second color image.Type: ApplicationFiled: June 27, 2017Publication date: December 28, 2017Applicants: TOHOKU UNIVERSITY, Toshiba Medical Systems CorporationInventors: Satoru OHISHI, Koichi CHIDA
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Patent number: 9693750Abstract: An evaluation aid is used as a phantom (imitation lesion) when a digital X-ray dynamic image thereof is taken and evaluated for image qualities for X-ray absorption parts having different X-ray absorption ratios. The evaluation aid contains a fixed plate (plate-like body) including a plurality of regions having different X-ray absorption ratios; a rotating disk (movable body) having a plurality of wires (wire rods), the rotating disk capable of rotating (moving) with respect to the fixed plate so that the plurality of wires traverse X-ray with which the fixed plate is irradiated; and a driving motor (driving portion) which rotates (moves) the rotating disk with respect to the fixed plate. It is preferred that thicknesses and/or constituent materials of the plurality of regions of the fixed plate are different from each other, so that these regions have the different X-ray absorption ratios.Type: GrantFiled: November 9, 2016Date of Patent: July 4, 2017Assignees: NATIONAL UNIVERSITY CORPORATION, TOHOKU UNIVERSITY, MITAYA MANFACTUING CO., LTD.Inventors: Koichi Chida, Yuji Kaga, Goro Yokouchi
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Patent number: 9662087Abstract: An evaluation aid serves as a phantom (imitation lesion) when a digital X-ray image is taken, and evaluation is then carried out through the digital X-ray image. The evaluation aid can simplify evaluating image qualities of a digital X-ray image for X-ray absorption parts having different X-ray absorption ratios all at once. The evaluation aid contains a substrate (plate-like body) including a plurality of regions having different X-ray absorption ratios for taking a digital X-ray image to carry out evaluation. Step members are provided on the plate-like body so as to correspond to the plurality of regions, respectively, where each step member includes a plurality of subregions having different X-ray absorption ratios. Preferably the thicknesses and/or constituent materials of the plurality of regions of the substrate are different from each other in order to have different X-ray absorption ratios in these regions.Type: GrantFiled: April 6, 2016Date of Patent: May 30, 2017Assignees: National University Corporation, Tohoku University, Mitaya Manufacturing Co., Ltd.Inventors: Koichi Chida, Yuji Kaga, Goro Yokouchi
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Publication number: 20170055937Abstract: An evaluation aid is used as a phantom (imitation lesion) when a digital X-ray dynamic image thereof is taken and evaluated for image qualities for X-ray absorption parts having different X-ray absorption ratios. The evaluation aid contains a fixed plate (plate-like body) including a plurality of regions having different X-ray absorption ratios; a rotating disk (movable body) having a plurality of wires (wire rods), the rotating disk capable of rotating (moving) with respect to the fixed plate so that the plurality of wires traverse X-ray with which the fixed plate is irradiated; and a driving motor (driving portion) which rotates (moves) the rotating disk with respect to the fixed plate. It is preferred that thicknesses and/or constituent materials of the plurality of regions of the fixed plate are different from each other, so that these regions have die different X-ray absorption ratios.Type: ApplicationFiled: November 9, 2016Publication date: March 2, 2017Inventors: Koichi CHIDA, Yuji KAGA, Goro YOKOUCHI
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Patent number: 9521989Abstract: An evaluation aid is used as a phantom (imitation lesion) when a digital X-ray dynamic image thereof is taken and evaluated for image qualities for X-ray absorption parts having different X-ray absorption ratios. The evaluation aid contains a fixed plate (plate-like body) including a plurality of regions having different X-ray absorption ratios; a rotating disk (movable body) having a plurality of wires (wire rods), the rotating disk capable of rotating (moving) with respect to the fixed plate so that the plurality of wires traverse X-ray with which the fixed plate is irradiated; and a driving motor (driving portion) which rotates (moves) the rotating disk with respect to the fixed plate. It is preferred that thicknesses and/or constituent materials of the plurality of regions of the fixed plate are different from each other, so that these regions have the different X-ray absorption ratios.Type: GrantFiled: June 13, 2016Date of Patent: December 20, 2016Assignees: National University Corporation, Tohoku University, Mitaya Manufacturing Co., Ltd.Inventors: Koichi Chida, Yuji Kaga, Goro Yokouchi
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Publication number: 20160296198Abstract: An evaluation aid is used as a phantom (imitation lesion) when a digital X-ray dynamic image thereof is taken and evaluated for image qualities for X-ray absorption parts having different X-ray absorption ratios. The evaluation aid contains a fixed plate (plate-like body) including a plurality of regions having different X-ray absorption ratios; a rotating disk (movable body) having a plurality of wires (wire rods), the rotating disk capable of rotating (moving) with respect to the fixed plate so that the plurality of wires traverse X-ray with which the fixed plate is irradiated; and a driving motor (driving portion) which rotates (moves) the rotating disk with respect to the fixed plate. It is preferred that thicknesses and/or constituent materials of the plurality of regions of the fixed plate are different from each other, so that these regions have the different X-ray absorption ratios.Type: ApplicationFiled: June 13, 2016Publication date: October 13, 2016Applicant: MITAYA MANUFACTURING CO., LTD.Inventors: Koichi CHIDA, Yuji KAGA, Goro YOKOUCHI
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Publication number: 20160242729Abstract: An evaluation aid serves as a phantom (imitation lesion) when a digital X-ray image is taken, and evaluation is then carried out through the digital X-ray image. The evaluation aid can simplify evaluating image qualities of a digital X-ray image for X-ray absorption parts having different X-ray absorption ratios all at once. The evaluation aid contains a substrate (plate-like body) including a plurality of regions having different X-ray absorption ratios for taking a digital X-ray image to carry out evaluation. Step members are provided on the plate-like body so as to correspond to the plurality of regions, respectively, where each step member includes a plurality of subregions having different X-ray absorption ratios. Preferably the thicknesses and/or constituent materials of the plurality of regions of the substrate are different from each other in order to have different X-ray absorption ratios in these regions.Type: ApplicationFiled: April 6, 2016Publication date: August 25, 2016Inventors: Koichi CHIDA, Yuji KAGA, Goro YOKOUCHI
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Patent number: 9392991Abstract: The present invention provides an evaluation aid which can be used as a phantom (imitation lesion) when a digital X-ray dynamic image thereof is taken and then evaluation is carried out through the digital X-ray dynamic image, and especially an evaluation aid which can be used for evaluating image qualities of a digital X-ray dynamic image for X-ray absorption parts having different X-ray absorption ratios, and an evaluation device provided with such an evaluation aid.Type: GrantFiled: July 2, 2012Date of Patent: July 19, 2016Assignees: NATIONAL UNIVERSITY CORPORATION, TOHOKU UNIVERSITY, MITAYA MANUFACTURING CO., LTD.Inventors: Koichi Chida, Yuji Kaga, Goro Yokouchi
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Patent number: 9332957Abstract: An evaluation aid which can be used as a phantom (imitation lesion) when a digital X-ray image is taken and then evaluation is carried out through the digital X-ray image. The evaluation aid can be used to easily evaluate image qualities of a digital X-ray image for object parts having different X-ray absorption ratios at once. The evaluation aid is adapted to be used for taking a digital X-ray image thereof through which evaluation is carried out, and contains a substrate (plate-like body) including a plurality of regions having different X-ray absorption ratios; and step members provided on the plate-like body so as to correspond to the plurality of regions, respectively. Each step member includes a plurality of subregions having different X-ray absorption ratios. Thicknesses and/or constituent materials of the plurality of regions of the substrate may be different from each other to establish regions having different X-ray absorption ratios.Type: GrantFiled: January 30, 2015Date of Patent: May 10, 2016Assignee: National University Corporation, Tohoku UniversityInventors: Koichi Chida, Yuji Kaga, Goro Yokouchi
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Publication number: 20160015338Abstract: Dosimeters with an environmental safety are provided, by which a dose of radiation can be measured in real time when taking or fluoroscopically viewing an image by using the radiation while suppressing influence on the image taken or fluoroscopically viewed. The present dosimeter comprises a radiation detection part 100 including a phosphor 120 made of Y2O2S as a matrix with at least Eu as an activating agent, an optical fiber 200 of transmitting light emitted from the phosphor 120 of the radiation detection part 100 by receiving a radiation, and a light detection part 310 of detecting the light transmitted through the optical fiber 200.Type: ApplicationFiled: February 26, 2014Publication date: January 21, 2016Inventors: Koichi Chida, Masayuki Zuguchi, Masaski Nakamura, Koetsu Sato, Tsutomu Iyoki, Eiichi Uchijima
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Patent number: 9143593Abstract: An addressee information notification system includes an application server which, based on an addressee number requested by an incoming call connection request, selects one transfer destination terminal from plural alternative transfer destination terminals associated with the addressee number, and transfers the call connection request to the selected terminal, and plural terminals configured as alternative transfer destinations. The application server includes an addressee information attachment section that attaches addressee information in the form of the addressee number or identification information associated with the addressee number to the call connection request to be transferred to the selected terminal. At least one of the plural terminals has an addressee information output section that, when a call connection request is provided to that terminal from the application server, outputs the addressee information attached to the call connection request before the terminal is taken off-hook.Type: GrantFiled: November 6, 2008Date of Patent: September 22, 2015Assignee: Oki Electric Industry Co., Ltd.Inventor: Koichi Chida
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Publication number: 20150182186Abstract: The present invention provides an evaluation aid which can be used as a phantom (imitation lesion) when a digital X-ray image thereof is taken and then evaluation is carried out through the digital X-ray image, and especially an evaluation aid which can be used for easily evaluating image qualities of a digital X-ray image for X-ray absorption parts having different X-ray absorption ratios at once. The evaluation aid of the present invention is adapted to be used for taking a digital X-ray image thereof through which evaluation is carried out, and contains a substrate (plate-like body) including a plurality of regions having different X-ray absorption ratios; and step members provided on the plate-like body so as to correspond to the plurality of regions, respectively, each step member including a plurality of subregions having different X-ray absorption ratios.Type: ApplicationFiled: January 30, 2015Publication date: July 2, 2015Inventors: Koichi CHIDA, Yuji KAGA, Goro YOKOUCHI
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Patent number: 8981283Abstract: An evaluation aid which can be used as a phantom (imitation lesion) when a digital X-ray image thereof is taken and then evaluation is carried out through the digital X-ray image. The evaluation aid is adapted to be used for taking a digital X-ray image thereof through which evaluation is carried out, and contains a substrate (plate-like body) including a plurality of regions having different X-ray absorption ratios and step members provided on the plate-like body.Type: GrantFiled: July 26, 2011Date of Patent: March 17, 2015Assignees: National University Corporation, Tohoku University, Mitaya Manufacturing Co., Ltd.Inventors: Koichi Chida, Yuji Kaga, Goro Yokouchi
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Publication number: 20140146950Abstract: The present invention provides an evaluation aid which can be used as a phantom (imitation lesion) when a digital X-ray dynamic image thereof is taken and then evaluation is carried out through the digital X-ray dynamic image, and especially an evaluation aid which can be used for evaluating image qualities of a digital X-ray dynamic image for X-ray absorption parts having different X-ray absorption ratios, and an evaluation device provided with such an evaluation aid.Type: ApplicationFiled: July 2, 2012Publication date: May 29, 2014Applicants: MITAYA MANUFACTURING CO., LTD., NATIONAL UNIVERSITY CORPORATION, TOHOKU UNIVERSITYInventors: Koichi Chida, Yuji Kaga, Goro Yokouchi
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Patent number: 8600029Abstract: In a caller information notifier system, a calling terminal transmits a calling signal having a phone number for callback inserted which is different from the phone number of the calling terminal. When a callback is tried from a called terminal, a communication network server, where the calling signal passes, determines the relationship between the phone number of the calling terminal and the phone number for callback inserted in the calling signal to authenticate the phone number for callback. A terminal which receives the calling signal extracts the phone number for callback from the calling signal and keeps the extracted number as a callback phone number. The callback phone number is, for instance, an FMC service number. The probability of success in reaching a caller is thereby increased.Type: GrantFiled: July 10, 2009Date of Patent: December 3, 2013Assignee: Oki Electric Industry Co., Ltd.Inventor: Koichi Chida
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Publication number: 20130156164Abstract: The present invention provides an evaluation aid which can be used as a phantom (imitation lesion) when a digital X-ray image thereof is taken and then evaluation is carried out through the digital X-ray image, and especially an evaluation aid which can be used for easily evaluating image qualities of a digital X-ray image for X-ray absorption parts having different X-ray absorption ratios at once. The evaluation aid of the present invention is adapted to be used for taking a digital X-ray image thereof through which evaluation is carried out, and contains a substrate (plate-like body) including a plurality of regions having different X-ray absorption ratios; and step members provided on the plate-like body so as to correspond to the plurality of regions, respectively, each step member including a plurality of subregions having different X-ray absorption ratios.Type: ApplicationFiled: July 26, 2011Publication date: June 20, 2013Applicants: MITAYA MANUFACTURING CO., LTD., NATIONAL UNIVERSITY CORPORATION, TOHOKU UNIVERSITYInventors: Koichi Chida, Yuji Kaga, Goro Yokouchi
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Patent number: 8422503Abstract: An address translator carries out address translation between a private address and a global address on a source address or a destination address included in the header of a received packet. The translator includes an address translation processor for applying address translation information to the header area of the received packet on a network layer level and carrying out address translation on the network layer level by means of the address translation information. Thus, the translator can establish high transparency, high possibility to establish interconnection, impartial assurance for users, high throughput and high availability, and thus provide open measures minimizing interrupt actions of any communication as well as possible.Type: GrantFiled: July 20, 2009Date of Patent: April 16, 2013Assignee: Oki Electric Industry Co., Ltd.Inventor: Koichi Chida
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Patent number: 8345687Abstract: An inter-network connection system is provided with a plurality of interface boards capable of processing traffic in a lower layer, an upper layer processing board capable of processing traffic in an upper layer, and an inter-board connection board capable of intervening in information transfer between the interface board and the upper layer processing board. The interface board has its input/output ports paired as port groups. When traffic is input through one input/output port of a port group, the traffic is output through the other input/output port of this port group. Only when the traffic is to be processed in the upper layer, the traffic is transferred from the interface board to the upper layer processing board. The inter-network connection system allows the amount of traffic processed in parallel to be increased with a high security configuration.Type: GrantFiled: August 27, 2008Date of Patent: January 1, 2013Assignee: Oki Electric Industry Co., Ltd.Inventor: Koichi Chida
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Patent number: 7908666Abstract: When a user wishes to play purchased content data by a playing terminal, a registration database server authenticates a user ID. Furthermore, when the playing terminal requests a content server to establish communication, the content server authenticates the playing terminal to thereby establish communication only with the playing terminal of which the user ID authentication and terminal authentication are correct. Consequently, the content data is prevented from being copied to another playing terminal which is owned by a third party, and thus the copyright of the content data can be protected.Type: GrantFiled: November 29, 2006Date of Patent: March 15, 2011Assignee: Oki Electric Industry Co., Ltd.Inventors: Koichi Chida, Kei Kato, Yuhiko Fujiwara