Patents by Inventor Katsuyuki Takagi
Katsuyuki Takagi 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).
-
Publication number: 20240145521Abstract: A radiation imaging device includes charge generation chips configured to generate charges, reading chips configured to output a digital value based on the charges, and a circuit board configured to have the reading chips arranged thereon. The charge generation chips each have a charge output surfaces including a first output region facing the reading chip and a second output region facing a different reading chip. The reading chips each have signal input/output electrodes. The charge generation chips each have signal connection wirings extending from the first output region to the second output region and electrically connecting the signal input/output electrodes of the reading chip to the signal input/output electrodes of the different reading chip.Type: ApplicationFiled: March 11, 2021Publication date: May 2, 2024Inventors: Toru AOKI, Katsuyuki TAKAGI, Akifumi KOIKE
-
Patent number: 11921057Abstract: An X-ray imaging device that includes an X-ray source, an X-ray sensor that acquires intensity information of X-rays, a distance sensor that obtains distance information to a surface of an imaging object, and an information processing device that obtains imaging information by using the intensity information and the distance information. The information processing device includes an extraction unit that extracts information used in generation of the imaging information from the intensity information by using at least the distance information, and a reconstruction unit that generates the imaging information by using the intensity information.Type: GrantFiled: February 26, 2019Date of Patent: March 5, 2024Assignees: NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY, ANSEEN INC.Inventors: Toru Aoki, Katsuyuki Takagi, Akifumi Koike
-
Publication number: 20240004092Abstract: A radiation imaging apparatus includes a plurality of pixels configured to generate an electric charge corresponding to energy or the number of particles of incident radiation, a plurality of signal processing parts respectively connected to the plurality of pixels and configured to generate a digital value based on the electric charge provided by each of the pixels, and a circuit board in which a radiation detector including the plurality of pixels and the plurality of signal processing parts is disposed in a two-dimensional manner. Each of the plurality of signal processing parts includes a signal conversion part configured to convert an analog value based on the electric charge into the digital value, and a clock signal generation part configured to provide a clock signal for generating a digital value to the signal conversion part.Type: ApplicationFiled: November 13, 2020Publication date: January 4, 2024Inventors: Toru AOKI, Katsuyuki TAKAGI, Akifumi KOIKE
-
Publication number: 20230378229Abstract: A radiation imaging device includes a radiation detector having an electric charge generation part configured to generate an electric charge corresponding to energy of incident radiation and a reading part configured to output a digital value based on the electric charge, and a circuit board in which a plurality of radiation detectors are disposed two-dimensionally. The reading part includes a lead-out substrate in which a plurality of signal processing parts are disposed two-dimensionally, and an intermediate substrate disposed between the electric charge generation part and the lead-out substrate. A plurality of first intermediate electrodes are disposed on an intermediate input surface. A plurality of second intermediate electrodes are disposed on an intermediate output surface. An arrangement interval of the second intermediate electrodes is different from an arrangement interval of the first intermediate electrodes.Type: ApplicationFiled: October 6, 2020Publication date: November 23, 2023Inventors: Toru AOKI, Katsuyuki TAKAGI, Akifumi KOIKE, Tetsuya IIDA, Tomohiko KOSUGI
-
Publication number: 20230341571Abstract: An object is to provide intensity information and energy information while reducing processing load and power consumption. In a radiation detector, a radiation detection element, in which a plurality of pixels each configured to generate an electric charge corresponding to energy of X-rays penetrating a subject is two-dimensionally arranged, and a plurality of read circuits each configured to output an intensity signal of transmitted X-rays based on the electric charge generated by each of the plurality of pixels are stacked with each other, and some read circuits thinned out from a plurality of read circuits each generate a spectral signal related to a spectrum of a transmitted X-ray based on the electric charge and output the spectral signal.Type: ApplicationFiled: November 24, 2020Publication date: October 26, 2023Inventors: Toru AOKI, Katsuyuki TAKAGI, Kosuke KIMURA, Akifumi KOIKE
-
Publication number: 20230204799Abstract: A radiation detector includes a charge generation part configured to generate charge corresponding to energy of an incident radiation, a preamplification part configured to output an analog signal corresponding to the charge, a signal conversion part configured to receive the analog signal and output a digital signal being the analog signal that has been discretized, an energy discrimination part configured to compare the digital signal to a threshold value and output components of the digital signal exceeding the threshold value, and an energy integration part configured to obtain an energy integrated value defined as a summation of the components exceeding the threshold value obtained each time the radiation enters.Type: ApplicationFiled: March 30, 2020Publication date: June 29, 2023Inventors: Toru AOKI, Katsuyuki TAKAGI, Akifumi KOIKE
-
Publication number: 20230008884Abstract: An object is to improve the reliability of output information by simplifying a wiring route. A radiation image sensor includes a radiation detector in which a plurality of pixels of a charge generator for generating a charge corresponding to energy or the number of particles of incident radiation and a plurality of read circuits for outputting a digital value based on the charge generated by each pixel of the charge generator are mutually stacked and two-dimensionally disposed, and a circuit board on which a plurality of radiation detectors is disposed, in which the plurality of read circuits of one radiation detector is configured to transfer data indicating a digital value in the plurality of read circuits and then output the data to another adjacent radiation detector in response to a control signal from the outside.Type: ApplicationFiled: October 6, 2020Publication date: January 12, 2023Inventors: Toru AOKI, Katsuyuki TAKAGI, Akifumi KOIKE
-
Publication number: 20220196575Abstract: An X-ray imaging device that includes an X-ray source, an X-ray sensor that acquires intensity information of X-rays, a distance sensor that obtains distance information to a surface of an imaging object, and an information processing device that obtains imaging information by using the intensity information and the distance information. The information processing device includes an extraction unit that extracts information used in generation of the imaging information from the intensity information by using at least the distance information, and a reconstruction unit that generates the imaging information by using the intensity information.Type: ApplicationFiled: February 26, 2019Publication date: June 23, 2022Inventors: Toru AOKI, Katsuyuki TAKAGI, Akifumi KOIKE
-
Patent number: 11179133Abstract: Provided are a collimator, a radiation detection device, and a radiation inspection device that are capable of further removing scattered radiation. This collimator 20 comprises: a radiation blocking section 22; and a radiation transmission section 21 that has a lower radiation blocking rate than the radiation blocking section 22, penetrates the radiation blocking section 22, and is solid. The X-ray transmission section 21 of the collimator 20 is solid therefore X-rays on the low-energy side that have been scattered by a subject B in the X-ray transmission section 21 are absorbed, as a result of this collimator 20. Accordingly, there is little noise contained in X-rays detected by a radiation detection element 30 and a high-resolution X-ray image can be obtained.Type: GrantFiled: February 27, 2018Date of Patent: November 23, 2021Assignee: ANSEEN INC.Inventors: Hisashi Morii, Takaharu Okunoyama, Katsuyuki Takagi
-
Publication number: 20210045705Abstract: Provided are a collimator, a radiation detection device, and a radiation inspection device that are capable of further removing scattered radiation. This collimator 20 comprises: a radiation blocking section 22; and a radiation transmission section 21 that has a lower radiation blocking rate than the radiation blocking section 22, penetrates the radiation blocking section 22, and is solid. The X-ray transmission section 21 of the collimator 20 is solid therefore X-rays on the low-energy side that have been scattered by a subject B in the X-ray transmission section 21 are absorbed, as a result of this collimator 20. Accordingly, there is little noise contained in X-rays detected by a radiation detection element 30 and a high-resolution X-ray image can be obtained.Type: ApplicationFiled: February 27, 2018Publication date: February 18, 2021Inventors: Hisashi MORII, Takaharu OKUNOYAMA, Katsuyuki TAKAGI
-
Patent number: 9621097Abstract: A linear conveyor includes: a linear motor stator which includes a plurality of electromagnets and in which each predetermined section can be individually controlled for conduction; a plurality of conveyance carriages each of which includes a linear motor mover; a linear scale which includes scale members secured to each of the conveyance carriages, and detectors disposed along a conveyance path; a plurality of motor controllers which individually controls conduction of electromagnets for each section based on the results of detecting the scale members by the detectors; and a data storage unit which stores position correction data for each conveyance carriage, determined based on the movement error of each conveyance carriage measured in advance using a common measurement jig. Each motor controller controls conduction of the electromagnets using the position correction data stored in the data storage.Type: GrantFiled: October 5, 2012Date of Patent: April 11, 2017Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Katsuyuki Takagi
-
Patent number: 9365354Abstract: A linear conveyor is provided with a linear motor stator including electromagnets and operable to individually undergo electric current supply control with respect to each zone; a conveyor carriage provided with a linear motor rotor and a unique information storing device; motor control devices configured to perform electric current supply control for the electromagnets with respect to each zone; and a reading device configured to read position correction data of the conveyor carriage stored in the unique information storing device. Each of the motor control devices is configured to correct a target stop position of the conveyor carriage, with use of the position correction data read by the reading device for performing electric current supply control based on the corrected target stop position.Type: GrantFiled: October 9, 2012Date of Patent: June 14, 2016Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Katsuyuki Takagi
-
Publication number: 20140320058Abstract: A linear conveyor includes: a linear motor stator which includes a plurality of electromagnets and in which each predetermined section can be individually controlled for conduction; a plurality of conveyance carriages each of which includes a linear motor mover; a linear scale which includes scale members secured to each of the conveyance carriages, and detectors disposed along a conveyance path; a plurality of motor controllers which individually controls conduction of electromagnets for each section based on the results of detecting the scale members by the detectors; and a data storage unit which stores position correction data for each conveyance carriage, determined based on the movement error of each conveyance carriage measured in advance using a common measurement jig. Each motor controller controls conduction of the electromagnets using the position correction data stored in the data storage.Type: ApplicationFiled: October 5, 2012Publication date: October 30, 2014Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Katsuyuki Takagi
-
Publication number: 20140257554Abstract: A linear conveyor is provided with a linear motor stator including electromagnets and operable to individually undergo electric current supply control with respect to each zone; a conveyor carriage provided with a linear motor rotor and a unique information storing device; motor control devices configured to perform electric current supply control for the electromagnets with respect to each zone; and a reading device configured to read position correction data of the conveyor carriage stored in the unique information storing device. Each of the motor control devices is configured to correct a target stop position of the conveyor carriage, with use of the position correction data read by the reading device for performing electric current supply control based on the corrected target stop position.Type: ApplicationFiled: October 9, 2012Publication date: September 11, 2014Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Katsuyuki Takagi
-
Patent number: 8729966Abstract: A variable gain amplifier circuit with a small-sized configuration can accurately adjust the gain without causing a transmission loss of an input signal. A plurality of amplification portions are connected with each other between an amplification coupling line and a grounding line in parallel. The amplification portion includes a switching device and an amplification transistor, which induces a current corresponding to an input signal to flow between the amplification coupling line and the grounding line via the switching device when the switching device is in the on state. The amplitude gain is varied by, according to a gain control signal, separately switching on and off the switching devices of the respective amplification portions.Type: GrantFiled: January 26, 2012Date of Patent: May 20, 2014Assignee: Lapis Semiconductor Co., Ltd.Inventor: Katsuyuki Takagi
-
Patent number: 8497643Abstract: Disclosed is a linear scale for obtaining a distance from a reference point. A scale detection mechanism is adapted to output waveform signals of the same phase. Also the scale detection mechanism corresponds to a magnetic flux density generated by magnetic bodies of a scale element. The scale detection mechanism may be sensors. The sensors are arranged at even intervals corresponding to a scale length of the scale element. The sensors are adapted to output sine-wave signals having the same phase to continuously detect the scale element in a movement direction of the scale element. The scale element has opposite ends each has the same polarity and configured such that an output voltage of the single sensor detecting the end of the scale element is reduced to one-half of an output voltage of the single sensor detecting the remaining portion of the scale element.Type: GrantFiled: October 15, 2010Date of Patent: July 30, 2013Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Katsuyuki Takagi
-
Publication number: 20120206204Abstract: A variable gain amplifier circuit with a small-sized configuration can accurately adjust the gain without causing a transmission loss of an input signal. A plurality of amplification portions are connected with each other between an amplification coupling line and a grounding line in parallel. The amplification portion includes a switching device and an amplification transistor, which induces a current corresponding to an input signal to flow between the amplification coupling line and the grounding line via the switching device when the switching device is in the on state. The amplitude gain is varied by, according to a gain control signal, separately switching on and off the switching devices of the respective amplification portions.Type: ApplicationFiled: January 26, 2012Publication date: August 16, 2012Applicant: LAPIS Semiconductor Co., Ltd.Inventor: Katsuyuki TAKAGI
-
Publication number: 20110109252Abstract: Disclosed is a linear scale for obtaining a distance from a reference point. A scale detection mechanism is adapted to output waveform signals of the same phase. Also the scale detection mechanism corresponds to a magnetic flux density generated by magnetic bodies of a scale element. The scale detection mechanism may be sensors. The sensors are arranged at even intervals corresponding to a scale length of the scale element. The sensors are adapted to output sine-wave signals having the same phase to continuously detect the scale element in a movement direction of the scale element. The scale element has opposite ends each has the same polarity and configured such that an output voltage of the single sensor detecting the end of the scale element is reduced to one-half of an output voltage of the single sensor detecting the remaining portion of the scale element.Type: ApplicationFiled: October 15, 2010Publication date: May 12, 2011Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Katsuyuki TAKAGI
-
Patent number: 7255583Abstract: A connection terminal includes a housing, a case fixed to the housing, a terminal stage installed inside the case and having a first terminal and a guide portion, the first terminal and the guide portion projecting parallel to each other from one end of the terminal stage in the same direction, a connected member facing the case and having a second terminal to which the first terminal is fitted and connected for establishment of electrical connection, and a recessed portion to which the guide portion is fitted. The terminal stage is movable at least in a direction orthogonal to a direction of the connection between the first and second terminals while being installed inside the case. The first and second terminals are fitted to each other after the guide portion is fitted to the recessed portion.Type: GrantFiled: July 25, 2006Date of Patent: August 14, 2007Assignee: Hitachi, Ltd.Inventor: Katsuyuki Takagi
-
Publication number: 20070032113Abstract: A connection terminal includes a housing, a case fixed to the housing, a terminal stage installed inside the case and having a first terminal and a guide portion, the first terminal and the guide portion projecting parallel to each other from one end of the terminal stage in the same direction, a connected member facing the case and having a second terminal to which the first terminal is fitted and connected for establishment of electrical connection, and a recessed portion to which the guide portion is fitted. The terminal stage is movable at least in a direction orthogonal to a direction of the connection between the first and second terminals while being installed inside the case. The first and second terminals are fitted to each other after the guide portion is fitted to the recessed portion.Type: ApplicationFiled: July 25, 2006Publication date: February 8, 2007Inventor: Katsuyuki Takagi