Patents by Inventor Yoshiaki Ishii
Yoshiaki Ishii 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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Publication number: 20240097594Abstract: A motor control device includes a control unit configured to cause a current to flow between two terminals out of three terminals of a three-phase motor under PWM control, a first signal information acquisition unit configured to acquire first signal information indicating an on-duty ratio of a PWM control signal in a three-phase energization state after a predetermined period has elapsed since the three-phase motor was started, and a determination unit configured to determine whether the three-phase motor is locked based on the first signal information.Type: ApplicationFiled: November 16, 2021Publication date: March 21, 2024Applicant: AISIN CORPORATIONInventors: Takeru YAMAMOTO, Yoshiaki USHITA, Tomoya ISHII, Naoki ONOSAKA
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Publication number: 20230299129Abstract: A semiconductor device includes a semiconductor substrate of a first conductivity type; a semiconductor layer located on the semiconductor substrate, the semiconductor layer being of the first conductivity type and including a first device part; a buried layer located between the semiconductor substrate and the first device part, the buried layer being of a second conductivity type; a guard region located at a first-direction side of the first device part, the guard region being of the second conductivity type, a lower end of the guard region contacting the buried layer, an upper end of the guard region reaching an upper surface of the semiconductor layer, the guard region not being located at a second-direction side of the first device part, the second direction being opposite to the first direction; and a first semiconductor region located inside the first device part and being of the second conductivity type.Type: ApplicationFiled: September 8, 2022Publication date: September 21, 2023Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATIONInventors: Kanako KOMATSU, Yoshiaki ISHII, Daisuke SHINOHARA
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Patent number: 11693129Abstract: A radiation imaging apparatus is provided. The radiation imaging apparatus comprises a plurality of pixels used to acquire a radiation image, and a readout circuit configured to read out a signal from each of the plurality of pixels. Correction image data used for performing offset correction is acquired from the plurality of pixels in an acquisition mode associated with an estimated value of the signal and system noise generated when the readout circuit reads out the signal, the estimated value and the system noise being set according to an imaging mode by a user.Type: GrantFiled: July 2, 2020Date of Patent: July 4, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Yutaka Ishinari, Tomoyuki Yagi, Yoshiaki Ishii, Yuki Iwabuchi, Kai Suzuki
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Patent number: 11686691Abstract: A radiation imaging apparatus that obtains a radiation image by an energy subtraction method. Each pixel includes a conversion element that converts radiation into an electrical signal and a reset portion that resets the conversion element. Each pixel performs an operation of outputting a first signal corresponding to an electrical signal generated by the conversion element in a first period, and an operation of outputting a second signal corresponding to an electrical signal generated by the conversion element in the first period and a second period. Radiation having first energy is emitted in the first period, and radiation having second energy is emitted in the second period. In each pixel, the reset portion does not reset the conversion element during a period that includes the first period and the second period.Type: GrantFiled: May 27, 2021Date of Patent: June 27, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Atsushi Iwashita, Kosuke Terui, Katsuro Takenaka, Yoshiaki Ishii
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Patent number: 11592583Abstract: A radiation imaging apparatus comprising a pixel array and a readout circuit is provided. The readout circuit includes an integrating amplifier configured to read out a signal from the pixel, a sample-and-hold circuit configured to sample an output from the integrating amplifier, and an A/D convertor configured to perform analog/digital conversion on an output from the sample-and-hold circuit and output the converted output. The apparatus performs first control and second control in parallel in an accumulation period for accumulating the signal in the pixel array. In the first control, the A/D convertor performs an analog/digital conversion operation, and in the second control, the integrating amplifier outputs a reference potential and the A/D convertor is electrically connected to a node configured to output the reference potential of the integrating amplifier.Type: GrantFiled: January 8, 2021Date of Patent: February 28, 2023Assignee: Canon Kabushiki KaishaInventors: Yutaka Ishinari, Tomoyuki Yagi, Yoshiaki Ishii, Yuki Iwabuchi
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Publication number: 20220334272Abstract: A radiographic imaging apparatus comprising pixels, a drive circuit configured to control the pixels through drive lines and a detection unit configured to detect a start of radiation irradiation is provided. The drive circuit comprises a shift circuit configured to perform a shift operation of changing the drive line to be activated, among the drive lines, in response to a shift control signal input to the drive circuit. The drive circuit has a mode of activating a second drive line among the drive lines in response to the shift control signal input for a second time after a first drive line among the drive lines is activated during a period up to when the detection unit detects the start of radiation irradiation, at least two drive lines of the drive lines being disposed between the first drive line and the second drive line.Type: ApplicationFiled: March 30, 2022Publication date: October 20, 2022Inventors: Hideyuki Okada, Kentaro Fujiyoshi, Yoshiaki Ishii, Ryunosuke Bannai, Syuichi Fujita
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Publication number: 20220121004Abstract: The imaging lens includes, as lens groups in order from the object side, only a first lens group, a second lens group, and a third lens group. During focusing, the second lens group moves, and the first lens group and the third lens group remain stationary. The first lens group includes at least two groups of cemented lenses. Assuming that a focal length of a lens closest to the object side is f1, a focal length of the imaging lens in a state where an infinite distance object is in focus is f, and an air conversion distance on the optical axis from a lens surface closest to the image side to a focal position on the image side of the imaging lens in a state where an infinite distance object is in focus is Bf, the imaging lens satisfies Conditional Expressions (1): 0.1<f1/f<1 and (2): Bf/f<0.14.Type: ApplicationFiled: December 27, 2021Publication date: April 21, 2022Applicant: FUJIFILM CorporationInventors: Taiga NODA, Yoshiaki ISHII, Hiroki SAITO
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Patent number: 11128820Abstract: A radiation imaging apparatus includes a pixel array including n pixel rows, where n?3, and a driving circuit configured to scan the pixel array from a first row toward an nth row, counting from one end of the pixel array. In a case where a region of interest is included in a partial region composed of pixel rows from an ith row to a jth row, where 1<i?j<n, the driving circuit starts scanning of the pixel array from the first row, and starts scanning of the pixel array from the first row again during scanning of pixel rows from a (j+1)th row to the nth row.Type: GrantFiled: September 24, 2019Date of Patent: September 21, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Toshikazu Tamura, Tomoyuki Yagi, Yuki Iwabuchi, Yoshiaki Ishii, Yutaka Ishinari
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Publication number: 20210285896Abstract: A radiation imaging apparatus that obtains a radiation image by an energy subtraction method. Each pixel includes a conversion element that converts radiation into an electrical signal and a reset portion that resets the conversion element. Each pixel performs an operation of outputting a first signal corresponding to an electrical signal generated by the conversion element in a first period, and an operation of outputting a second signal corresponding to an electrical signal generated by the conversion element in the first period and a second period. Radiation having first energy is emitted in the first period, and radiation having second energy is emitted in the second period. In each pixel, the reset portion does not reset the conversion element during a period that includes the first period and the second period.Type: ApplicationFiled: May 27, 2021Publication date: September 16, 2021Inventors: Atsushi Iwashita, Kosuke Terui, Katsuro Takenaka, Yoshiaki Ishii
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Patent number: 11121247Abstract: A semiconductor device includes a semiconductor portion, a first insulating film, a second insulating film, a first contact, a second contact, and a gate electrode. The first insulating film is provided on the semiconductor portion. The second insulating film is contacting the first insulating film, is provided on the semiconductor portion, and is thicker than the first insulating film. A through-hole is formed in the second insulating film. The first contact has a lower end connected to the semiconductor portion. The second contact has a lower portion disposed inside the through-hole and a lower end connected to the semiconductor portion. The gate electrode is positioned between the first contact and the second contact, is provided on the first insulating film, and is provided on a portion of the second insulating film other than the through-hole.Type: GrantFiled: September 16, 2019Date of Patent: September 14, 2021Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage CorporationInventors: Tomoko Kinoshita, Daisuke Shinohara, Kanako Komatsu, Yoshiaki Ishii, Sudharsan Sundaram Prabhakaran
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Patent number: 11100614Abstract: An image processing device includes a transfer function input unit to which each of transfer functions of a plurality of imaging systems is input, a calculation unit that calculates a target resolution value which is a target value of recovery processing that recovers a plurality of captured images to be output from each of the plurality of the imaging systems based on the input transfer functions and a predetermined criterion, a recovery-filter generation unit that generates a recovery-filter used for the recovery processing with respect to each of the plurality of imaging systems based on the transfer functions of the plurality of imaging systems and a target resolution value, and a recovered image generation unit that performs the recovery processing with respect to the captured images acquired from the plurality of imaging systems by using the recovery-filter generated for each of the plurality of imaging systems to generate recovered images.Type: GrantFiled: July 23, 2019Date of Patent: August 24, 2021Assignee: FUJIFILM CorporationInventors: Yosuke Naruse, Yasunobu Kishine, Kenkichi Hayashi, Yoshiaki Ishii
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Publication number: 20210215834Abstract: A radiation imaging apparatus comprising a pixel array and a readout circuit is provided. The readout circuit includes an integrating amplifier configured to read out a signal from the pixel, a sample-and-hold circuit configured to sample an output from the integrating amplifier, and an A/D convertor configured to perform analog/digital conversion on an output from the sample-and-hold circuit and output the converted output. The apparatus performs first control and second control in parallel in an accumulation period for accumulating the signal in the pixel array. In the first control, the A/D convertor performs an analog/digital conversion operation, and in the second control, the integrating amplifier outputs a reference potential and the A/D convertor is electrically connected to a node configured to output the reference potential of the integrating amplifier.Type: ApplicationFiled: January 8, 2021Publication date: July 15, 2021Inventors: Yutaka Ishinari, Tomoyuki Yagi, Yoshiaki Ishii, Yuki Iwabuchi
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Patent number: 11047808Abstract: A radiation imaging apparatus that obtains a radiation image by an energy subtraction method. Each pixel includes a conversion element that converts radiation into an electrical signal and a reset portion that resets the conversion element. Each pixel performs an operation of outputting a first signal corresponding to an electrical signal generated by the conversion element in a first period, and an operation of outputting a second signal corresponding to an electrical signal generated by the conversion element in the first period and a second period. Radiation having first energy is emitted in the first period, and radiation having second energy is emitted in the second period. In each pixel, the reset portion does not reset the conversion element during a period that includes the first period and the second period.Type: GrantFiled: October 24, 2017Date of Patent: June 29, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Atsushi Iwashita, Kosuke Terui, Katsuro Takenaka, Yoshiaki Ishii
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Patent number: 11047995Abstract: A radiation imaging apparatus includes a pixel array arranged with a plurality of pixels including conversion units configured to convert radiation into charges and accumulate the charges, a bias line connected to the conversion units of the plurality of pixels, a bias circuit configured to supply a bias potential to the bias line and detect a current flowing in the bias line, a noise reduction circuit configured to reduce, separately from the bias circuit, noise included in the bias potential from the bias circuit, and a switch configured to connect the noise reduction circuit to the bias line.Type: GrantFiled: October 10, 2019Date of Patent: June 29, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Tomoyuki Yagi, Yutaka Ishinari, Kai Suzuki, Yuki Iwabuchi, Yoshiaki Ishii
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Publication number: 20210143253Abstract: A semiconductor device includes a semiconductor substrate of a first conductivity type, a semiconductor layer of the first conductivity type provided on the semiconductor substrate, a first deep semiconductor region of a second conductivity type provided between the semiconductor substrate and the semiconductor layer, a first guard ring region of the second conductivity type, a first separation region of the second conductivity type contacting the first guard ring region and the first deep semiconductor region, a first semiconductor region of the first conductivity type, and a second semiconductor region of the first conductivity type; the first guard ring region and the first deep semiconductor region surround a first device part of the semiconductor layer; the first separation region partitions the first device part into a first region and a second region; and the first and second semiconductor regions are provided in the first and second regions.Type: ApplicationFiled: July 13, 2020Publication date: May 13, 2021Inventors: Mariko Yamashita, Kanako Komatsu, Yoshiaki Ishii, Daisuke Shinohara
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Patent number: 10965880Abstract: An information processing apparatus 14 includes a reception unit 22 that receives information based on a captured image obtained by an imaging device, an extraction unit 28 that extract a plurality of image data of which a degree of similarity with a subject specified by the information received by the reception unit 22 is equal to or greater than a predetermined value from a first image data group obtained by the bracket imaging and/or a second image data group obtained by non-bracket imaging which are accumulated in advance, a generation unit 30 that generates the imaging condition of the bracket imaging by using the plurality of image data extracted by the extraction unit 28, and a transmission unit 32 that transmits the imaging condition of the bracket imaging generated by the generation unit 30 to the imaging device.Type: GrantFiled: February 13, 2020Date of Patent: March 30, 2021Assignee: FUJIFILM CorporationInventors: Takeshi Kamiya, Masahiko Sugimoto, Yoshiaki Ishii
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Patent number: 10955909Abstract: A simulation system includes a processor including hardware. The processor performs a moving body process of performing a process of moving a moving body corresponding to a user wearing an HMD in a virtual space, a virtual camera control process of controlling a virtual camera moving in accordance with a movement of the moving body, and a display process of generating an image as viewed from the virtual camera in the virtual space as a display image of the HMD. In the display process, the processor performs a display process of changing, when a change in acceleration of the moving body or a change in a line-of-sight direction of the virtual camera is determined to have satisfied a given change condition, the display image on the HMD to an image different from the image as viewed from the virtual camera.Type: GrantFiled: January 11, 2019Date of Patent: March 23, 2021Assignee: BANDAI NAMCO ENTERTAINMENT INC.Inventors: Yoshiaki Ishii, Shinya Makino
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Patent number: 10931888Abstract: An image processing device includes a transfer function input unit to which each of transfer functions of a plurality of imaging-systems is input, a calculation unit that calculates a target resolution value which is a target value of recovery processing that recovers a plurality of captured images to be output from each of the plurality of the imaging-systems based on each of the input transfer functions and a predetermined criterion, a recovery filter generation unit that generates a recovery filter used for the recovery processing with respect to each of the plurality of imaging-systems based on each of the transfer functions of the plurality of imaging-systems and a target resolution value, and a recovered image generation unit that performs the recovery processing with respect to the captured images acquired from the plurality of imaging-systems by using the recovery filter generated for each of the plurality of imaging-systems to generate recovered images.Type: GrantFiled: July 22, 2019Date of Patent: February 23, 2021Assignee: FUJIFILM CorporationInventors: Yosuke Naruse, Yasunobu Kishine, Kenkichi Hayashi, Yoshiaki Ishii
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Patent number: 10915166Abstract: A simulation system includes a processor including hardware. The processor is configured to perform: acquiring tracking information for point-of-view information about a user wearing an HMD; moving a moving body, corresponding to the user, in a virtual space; controlling a virtual camera set as a first person point-of-view of the user; and generating an image as viewed from the virtual camera in the virtual space, as a display image on the HMD. The processor is configured to perform, in controlling the virtual camera, setting the virtual camera so that a position and/or an orientation of the virtual camera is changed based on the tracking information, but orientation change of the virtual camera corresponding to at least one of pitching and rolling is disabled or limited in a case where a traveling direction of the moving body changes.Type: GrantFiled: January 11, 2019Date of Patent: February 9, 2021Assignee: BANDAI NAMCO ENTERTAINMENT INC.Inventors: Yoshiaki Ishii, Shinya Making
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Publication number: 20210011176Abstract: A radiation imaging apparatus is provided. The radiation imaging apparatus comprises a plurality of pixels used to acquire a radiation image, and a readout circuit configured to read out a signal from each of the plurality of pixels. Correction image data used for performing offset correction is acquired from the plurality of pixels in an acquisition mode associated with an estimated value of the signal and system noise generated when the readout circuit reads out the signal, the estimated value and the system noise being set according to an imaging mode by a user.Type: ApplicationFiled: July 2, 2020Publication date: January 14, 2021Inventors: Yutaka Ishinari, Tomoyuki Yagi, Yoshiaki Ishii, Yuki Iwabuchi, Kai Suzuki