Patents by Inventor Susumu Adachi
Susumu Adachi 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: 7709803Abstract: At least part of a readout pattern including carrier collecting electrodes, capacitors, thin-film transistors, data lines and gate lines is formed by vapor deposition or printing. This is formed separately from a semiconductor thick film. The semiconductor thick film and readout pattern constitute a flat panel X-ray detector (FPD) is mounted in a case to form a unit. A weight reduction is achieved by using the semiconductor thick film in place of a conventional glass substrate. The FPD manufactured in this way is free from great restrictions in time of transport and use.Type: GrantFiled: August 29, 2006Date of Patent: May 4, 2010Assignee: Shimadzu CorporationInventor: Susumu Adachi
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Patent number: 7659518Abstract: A light or radiation image pickup apparatus comprises a first arithmetic unit 50 for calculating a first arithmetic value by subtracting a first offset signal from a main signal, a second arithmetic unit 51 for calculating a second arithmetic value which is a difference between a second offset signal and the first offset signal, and a correcting unit 52 for correcting the first arithmetic value calculated by the first arithmetic unit 50, by using the second arithmetic value calculated by the second arithmetic unit 51 and corresponding to a period of the same length as a period from the first offset signal to the main signal used in the operation in the first arithmetic unit 50. The first arithmetic value is corrected to remove noise components due to leakage of charge signals accumulated during the period from the first offset signal to the main signal.Type: GrantFiled: July 27, 2006Date of Patent: February 9, 2010Assignee: Shimadzu CorporationInventor: Susumu Adachi
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Publication number: 20090184253Abstract: A light or radiation image pickup apparatus comprises a first arithmetic unit 50 for calculating a first arithmetic value by subtracting a first offset signal from a main signal, a second arithmetic unit 51 for calculating a second arithmetic value which is a difference between a second offset signal and the first offset signal, and a correcting unit 52 for correcting the first arithmetic value calculated by the first arithmetic unit 50, by using the second arithmetic value calculated by the second arithmetic unit 51 and corresponding to a period of the same length as a period from the first offset signal to the main signal used in the operation in the first arithmetic unit 50. The first arithmetic value is corrected to remove noise components due to leakage of charge signals accumulated during the period from the first offset signal to the main signal.Type: ApplicationFiled: July 27, 2006Publication date: July 23, 2009Inventor: Susumu Adachi
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Patent number: 7541594Abstract: An FPD controller controls a flat panel X-ray detector (FPD) to perform a reading operation for reading carriers (charge information) and a reset operation for resetting and discarding the carriers, during a frame cycle from a reading point of time for reading charge information collectively from a predetermined read area (i.e. an in-field of 2,048×2,048 pixels) to a reading point of time for reading charge information collectively from a next predetermined read area. This control can reduce the influence of the preceding predetermined read area.Type: GrantFiled: August 17, 2006Date of Patent: June 2, 2009Assignee: Shimadzu CorporationInventor: Susumu Adachi
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Patent number: 7377691Abstract: A radiographic apparatus obtains lag-free radiation detection signals with lag-behind parts removed from radiation detection signals taken from a flat panel X-ray detector as X rays are emitted from an X-ray tube. The lag-behind parts are removed by a recursive computation on an assumption that the lag-behind part included in each X-ray detection signal is due to an impulse response formed of exponential functions, N in number, with different attenuation time constants. X-ray images are created from the lag-free radiation detection signals.Type: GrantFiled: January 16, 2004Date of Patent: May 27, 2008Assignee: Shimadzu CorporationInventors: Shoichi Okamura, Keiichi Fujii, Susumu Adachi, Shinya Hirasawa, Toshinori Yoshimuta, Koichi Tanabe, Masatomo Kaino, Hiroshi Koyama
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Patent number: 7313218Abstract: A radiographic apparatus removes lag-behind parts from radiation detection signals taken from an FPD as X rays are emitted from an X-ray tube, on an assumption that the lag-behind part included in each X-ray detection signal is due to an impulse response formed of a plurality of exponential functions with different attenuation time constants. When a single attenuation time constant and intensity are provisionally set, checking is made whether an attenuation to a noise level of X-ray detection signals occurs in an X-ray non-emission state following an X-ray emission state. When the set attenuation time constant and intensity are found appropriate (OK), the impulse response having the single exponential function is determined valid. Corrected radiation detection signals are obtained by removing the lag-behind parts using the impulse response determined.Type: GrantFiled: July 29, 2004Date of Patent: December 25, 2007Assignee: Shimadzu CorporationInventors: Shoichi Okamura, Keiichi Fujii, Susumu Adachi, Shinya Hirasawa, Toshinori Yoshimuta, Koichi Tanabe, Shigeya Asai, Akihiro Nishimura
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Publication number: 20070120063Abstract: An FPD controller controls a flat panel X-ray detector (FPD) to perform a reading operation for reading carriers (charge information) and a reset operation for resetting and discarding the carriers, during a frame cycle from a reading point of time for reading charge information collectively from a predetermined read area (i.e. an in-field of 2,048×2,048 pixels) to a reading point of time for reading charge information collectively from a next predetermined read area. This control can reduce the influence of the preceding predetermined read area.Type: ApplicationFiled: August 17, 2006Publication date: May 31, 2007Inventor: Susumu Adachi
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Patent number: 7203279Abstract: In the radiographic apparatus according to this invention, when a radiographic mode designator 16 designates a non-standard radiographic mode, a signal corrector 15 uses defect information stored in one of non-standard image defect information memories 18B–18E for correcting X-ray detection signals outputted from an FPD 2. Since the pixel defect information for non-standard X-ray images is acquired by a pixel defect information converter 19 through a conversion from defect information for standard X-ray images stored in a standard image defect information memory 18A, it is unnecessary to collect output signals for pixel defect information acquisition from the FPD 2 all over again. As a result, abnormal X-ray detection signals due to defects of radiation detecting elements may be corrected promptly, regardless of how the radiation detecting elements are assigned to the pixels in the X-ray images.Type: GrantFiled: March 24, 2005Date of Patent: April 10, 2007Assignee: Shimadzu CorporationInventors: Keiichi Fujii, Shoichi Okamura, Susumu Adachi, Shinya Hirasawa, Toshinori Yoshimuta, Koichi Tanabe, Shigeya Asai, Akihiro Nishimura
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Publication number: 20070045553Abstract: At least part of a readout pattern including carrier collecting electrodes, capacitors, thin-film transistors, data lines and gate lines is formed by vapor deposition or printing. This is formed separately from a semiconductor thick film. The semiconductor thick film and readout pattern constitute a flat panel X-ray detector (FPD) is mounted in a case to form a unit. A weight reduction is achieved by using the semiconductor thick film in place of a conventional glass substrate. The FPD manufactured in this way is free from great restrictions in time of transport and use.Type: ApplicationFiled: August 29, 2006Publication date: March 1, 2007Inventor: Susumu Adachi
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Patent number: 6987402Abstract: A new reversible element with six lines (three input lines and three output lines) and two states are proposed. This element is computationally universal in the sense that a universal Turing machine can be constructed from it. Two reversible elements, each of which has two input lines, two output lines, and two states. These two elements are related to each other in the sense that their functionalities are each other's inverse, so, one of the elements can be obtained from the other by reversing the operations conducted by the other, and interpreting the other's input lines as output lines and the other's output lines as input lines. Together these two elements form a computationally universal set, i.e., a universal Turing machine can be constructed from them.Type: GrantFiled: March 30, 2004Date of Patent: January 17, 2006Assignee: National Institute of Information and Communication Technology Incorporated Administrative AgencyInventors: Jia Lee, Peper Ferdinand, Susumu Adachi
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Publication number: 20050220268Abstract: In the radiographic apparatus according to this invention, when a radiographic mode designator 16 designates a non-standard radiographic mode, a signal corrector 15 uses defect information stored in one of non-standard image defect information memories 18B-18E for correcting X-ray detection signals outputted from an FPD 2. Since the pixel defect information for non-standard X-ray images is acquired by a pixel defect information converter 19 through a conversion from defect information for standard X-ray images stored in a standard image defect information memory 18A, it is unnecessary to collect output signals for pixel defect information acquisition from the FPD 2 all over again. As a result, abnormal X-ray detection signals due to defects of radiation detecting elements may be corrected promptly, regardless of how the radiation detecting elements are assigned to the pixels in the X-ray images.Type: ApplicationFiled: March 24, 2005Publication date: October 6, 2005Inventors: Keiichi Fujii, Shoichi Okamura, Susumu Adachi, Shinya Hirasawa, Toshinori Yoshimuta, Koichi Tanabe, Shigeya Asai, Akihiro Nishimura
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Publication number: 20050031079Abstract: A radiographic apparatus removes lag-behind parts from radiation detection signals taken from an FPD as X rays are emitted from an X-ray tube, on an assumption that the lag-behind part included in each X-ray detection signal is due to an impulse response formed of a plurality of exponential functions with different attenuation time constants. The lag-behind parts are removed by using impulse responses of the FPD corresponding, for example, to an X-ray dose used in a fluoroscopic image pickup and an X-ray dose used in a radiographic image pickup. X-ray images are created from corrected radiation detection signals with the lag-behind parts removed therefrom.Type: ApplicationFiled: July 8, 2004Publication date: February 10, 2005Inventors: Shoichi Okamura, Keiichi Fujii, Susumu Adachi, Shinya Hirasawa, Toshinori Yoshimuta, Koichi Tanabe, Shigeya Asai, Akihiro Nishimura
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Publication number: 20050031088Abstract: A subtraction image is obtained, by a subtraction process (DSA process), from a live image and a mask image. A lag-behind part included in each X-ray detection signal is considered due to an impulse response formed of exponential functions. The lag-behind part is removed from each X-ray detection signal by a recursive computation to obtain a corrected X-ray detection signal. The live image and mask image are obtained from such corrected detection signals.Type: ApplicationFiled: July 12, 2004Publication date: February 10, 2005Inventors: Shoichi Okamura, Keiichi Fujii, Susumu Adachi, Shinya Hirasawa, Toshinori Yoshimuta, Koichi Tanabe, Shigeya Asai, Akihiro Nishimura
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Publication number: 20050031070Abstract: A radiographic apparatus removes lag-behind parts from radiation detection signals taken from an FPD as X rays are emitted from an X-ray tube, on an assumption that the lag-behind part included in each X-ray detection signal is due to an impulse response formed of a plurality of exponential functions with different attenuation time constants. When a single attenuation time constant and intensity are provisionally set, checking is made whether an attenuation to a noise level of X-ray detection signals occurs in an X-ray non-emission state following an X-ray emission state. When the set attenuation time constant and intensity are found appropriate (OK), the impulse response having the single exponential function is determined valid. Corrected radiation detection signals are obtained by removing the lag-behind parts using the impulse response determined.Type: ApplicationFiled: July 29, 2004Publication date: February 10, 2005Inventors: Shoichi Okamura, Keiichi Fujii, Susumu Adachi, Shinya Hirasawa, Toshinori Yoshimuta, Koichi Tanabe, Shigeya Asai, Akihiro Nishimura
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Publication number: 20040246028Abstract: A new reversible element with six lines (three input lines and three output lines) and two states are proposed. This element is computationally universal in the sense that a universal Turing machine can be constructed from it. Two reversible elements, each of which has two input lines, two output lines, and two states. These two elements are related to each other in the sense that their functionalities are each other's inverse, so, one of the elements can be obtained from the other by reversing the operations conducted by the other, and interpreting the other's input lines as output lines and the other's output lines as input lines. Together these two elements form a computationally universal set, i.e., a universal Turing machine can be constructed from them.Type: ApplicationFiled: March 30, 2004Publication date: December 9, 2004Inventors: Jia Lee, Peper Ferdinand, Susumu Adachi
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Publication number: 20040156481Abstract: A radiographic apparatus obtains lag-free radiation detection signals with lag-behind parts removed from radiation detection signals taken from a flat panel X-ray detector as X rays are emitted from an X-ray tube. The lag-behind parts are removed by a recursive computation on an assumption that the lag-behind part included in each X-ray detection signal is due to an impulse response formed of exponential functions, N in number, with different attenuation time constants. X-ray images are created from the lag-free radiation detection signals.Type: ApplicationFiled: January 16, 2004Publication date: August 12, 2004Inventors: Shoichi Okamura, Keiichi Fujii, Susumu Adachi, Shinya Hirasawa, Toshinori Yoshimuta, Koichi Tanabe, Masatomo Kaino, Hiroshi Koyama
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Patent number: 6243440Abstract: An apparatus using a two-dimensional radiation sensor for acquiring X-ray penetration images or the like. A monitoring radiography is performed with a small dose before a production radiography. A radiographic condition for the production radiography, specifically a radiation emitting period or a tube current of a radiation generator, is computed based on a ratio between a quantity of charges in a region of interest collected from the two-dimensional radiation sensor in time of the monitoring radiography and a desired quantity of charges in the region of interest in time of the production radiography. The production radiography is carried out based on a result of the computation to acquire a high quality image.Type: GrantFiled: April 26, 1999Date of Patent: June 5, 2001Assignees: Shimadzu Corporation, Sharp Kabushiki KaishaInventors: Shiro Oikawa, Susumu Adachi, Takayuki Takemoto, Yasukuni Yamane
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Patent number: 5907643Abstract: An apparatus for processing a two-dimensional image obtained by scanning sensor arrays of image detectors perpendicular thereto, the apparatus including an image memory for storing pixel data output by the image detector as a two-dimensional image, a first read-out unit for reading the stored pixel data about a particular detector in a particular array, a second read-out unit for reading pixel data in the neighborhood of the pixel data read by the first read-out unit, a first arithmetic unit for measuring the magnitude of difference in sensitivity between the detector whose pixel data is read by the first read-out unit and the detector whose pixel data is read by the second read-out unit, and a second arithmetic unit for compensating for the deficiency of sensitivity on the basis of the output of the first arithmetic unit.Type: GrantFiled: February 5, 1997Date of Patent: May 25, 1999Assignee: Shimadzu CorporationInventor: Susumu Adachi
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Patent number: 5671300Abstract: An apparatus for processing a two-dimensional image obtained by scanning sensor arrays of image detectors perpendicular thereto, the apparatus including an image memory for storing pixel data output by the image detector as a two-dimensional image, a first read-out unit for reading the stored pixel data about a particular detector in a particular array, a second read-out unit for reading pixel data in the neighborhood of the pixel data read by the first read-out unit, a first arithmetic unit for measuring the magnitude of difference in sensitivity between the detector whose pixel data is read by the first read-out unit and the detector whose pixel data is read by the second read-out unit, and a second arithmetic unit for compensating for the deficiency of sensitivity on the basis of the output of the first arithmetic unit.Type: GrantFiled: June 8, 1994Date of Patent: September 23, 1997Assignee: Shimadzu CorporationInventor: Susumu Adachi
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Patent number: 5204247Abstract: A new strain Lactobacillus sp. KPB-176, which does not possess strict selectivity for specific media and which involves no reduction in the productivity of polysaccharides even during subculture, was isolated from kefir grains. When this new strain is cultured on a medium containing milk whey and casamino acid or when on a medium containing carbohydrate and yeast extract, capsular polysaccharides are produced in high yields.Type: GrantFiled: October 30, 1991Date of Patent: April 20, 1993Assignee: Sumitomo Heavy Industries, Ltd.Inventors: Susumu Adachi, Takahiro Toba, Takao Mukai, Takashi Watanabe, Haruhiko Yokoi