Patents by Inventor Kota Kitamura
Kota Kitamura 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: 11749231Abstract: A display driver includes image processing circuitry and drive circuitry. The image processing circuitry is configured to receive a foveal image, a full frame image, and coordinate data that specifies a position of the foveal image in the full frame image. The image processing circuitry is further configured to render a resulting image based on the full frame image independently of the foveal image in response to detection of a data error within the coordinate data. The drive circuitry is configured to drive a display panel based on the resulting image.Type: GrantFiled: August 4, 2021Date of Patent: September 5, 2023Assignee: Synaptics IncorporatedInventors: Satoshi Yamaguchi, Kota Kitamura, Takashi Nose
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Patent number: 11748956Abstract: A display driver includes interface circuitry, image processing circuitry, and drive circuitry. The interface circuitry is configured to receive a full frame image and a foveal image from a source external to the display driver. The image processing circuitry is configured to: upscale the full frame image; render a foveated image from the upscaled full frame image and the foveal image. The foveated image includes a foveal area based on the foveal image, a peripheral are based on the upscaled full frame image, and a border area based on the foveal image and the upscaled full frame image. The border area being located between the foveal area and the peripheral area. The drive circuitry is configured to drive a display panel using the foveated image.Type: GrantFiled: October 13, 2021Date of Patent: September 5, 2023Assignee: Synaptics IncorporatedInventors: Kota Kitamura, Goro Sakamaki, Tomoo Minaki
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Publication number: 20230170768Abstract: A brushless motor is an inner rotor type brushless motor. The brushless motor includes a plurality of phase coils of multiple phases arranged around a rotation axis, and a plurality of terminals configured to connect the plurality of phase coils of multiple phases to a switching circuit. The plurality of terminals are located inside a circumscribed circle of the plurality of phase coils of multiple phases.Type: ApplicationFiled: February 5, 2021Publication date: June 1, 2023Inventors: Akito NAKAMURA, Kota KITAMURA
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Publication number: 20230120149Abstract: An electric tool includes an output shaft and a controller. The output shaft is configured to hold a tip tool and be rotated by motive power provided from an electric motor with the output shaft holding the tip tool. The controller is configured to control rotation of the output shaft in accordance with pressing force in a direction from a tip end of the tip tool toward the output shaft. The electric tool has, as an operation range, a restriction range in which rotation of the output shaft is restricted in a state where the pressing force is less than or equal to a prescribed value.Type: ApplicationFiled: September 18, 2020Publication date: April 20, 2023Inventors: Itaru MURUI, Kotaro MOMOEDA, Kota KITAMURA, Naoki TSUJIMOTO, Akito NAKAMURA
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Patent number: 11632017Abstract: A motor for electric power tools according to an embodiment includes: a rotor having a rotational shaft; a stator having a coil to rotate the rotor; a first substrate mounting a sensor element to detect a rotational position of the rotor; and a second substrate mounting a switching element to change, based on a result of detection by the sensor element, a conducting direction in which a current flows with respect to the coil. The first substrate and the second substrate are arranged side by side along, and intersect at right angles with, the rotational shaft.Type: GrantFiled: March 24, 2020Date of Patent: April 18, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Itaru Murui, Masari Muramatsu, Motoharu Muto, Kota Kitamura
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Publication number: 20230111826Abstract: A display driver includes interface circuitry, image processing circuitry, and drive circuitry. The interface circuitry is configured to receive a full frame image and a foveal image from a source external to the display driver. The image processing circuitry is configured to: upscale the full frame image; render a foveated image from the upscaled full frame image and the foveal image. The foveated image includes a foveal area based on the foveal image, a peripheral are based on the upscaled full frame image, and a border area based on the foveal image and the upscaled full frame image. The border area being located between the foveal area and the peripheral area. The drive circuitry is configured to drive a display panel using the foveated image.Type: ApplicationFiled: October 13, 2021Publication date: April 13, 2023Inventors: Kota KITAMURA, Goro SAKAMAKI, Tomoo MINAKI
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Publication number: 20230038469Abstract: A display driver includes image processing circuitry and drive circuitry. The image processing circuitry is configured to receive a foveal image, a full frame image, and coordinate data that specifies a position of the foveal image in the full frame image. The image processing circuitry is further configured to render a resulting image based on the full frame image independently of the foveal image in response to detection of a data error within the coordinate data. The drive circuitry is configured to drive a display panel based on the resulting image.Type: ApplicationFiled: August 4, 2021Publication date: February 9, 2023Applicant: Synaptics IncorporatedInventors: Satoshi Yamaguchi, Kota Kitamura, Takashi Nose
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Publication number: 20230001549Abstract: An electric tool system includes a motor, a control unit, and an output shaft. The motor includes a stator and a rotor. The control unit performs vector control on the motor. The control unit includes a first acquisition unit, a second acquisition unit, and a command value generation unit. The command value generation unit calculates, based on a torque current acquisition value (current measured value) as a value related to a torque current as acquired by the first acquisition unit and an acceleration acquisition value as a value related to acceleration of the rotor as acquired by the second acquisition unit, at least one of a command value of the torque current to be supplied to the motor or a command value of an excitation current to be supplied to the motor.Type: ApplicationFiled: September 18, 2020Publication date: January 5, 2023Inventors: Itaru MURUI, Shota FUJII, Keita OKAMOTO, Naoki TSUJIMOTO, Kota KITAMURA, Kotaro MOMOEDA
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Publication number: 20220410283Abstract: An electric tool includes a pressure-sensitive sensor, a support, an output shaft, and a controller. The pressure-sensitive sensor is configured to sense pressing force which is externally provided. The support supports the pressure-sensitive sensor. The output shaft is configured to hold a tip tool and be rotated relative to the support by motive power provided from an electric motor with the output shaft holding the tip tool. The controller is configured to control rotation of the output shaft in accordance with an output according to the pressing force, the output being output from the pressure-sensitive sensor.Type: ApplicationFiled: September 18, 2020Publication date: December 29, 2022Inventors: Kota KITAMURA, Itaru MURUI, Naoki TSUJIMOTO, Kotaro MOMOEDA, Akito NAKAMURA
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Patent number: 11508273Abstract: A display driver includes image processing circuitry, driver circuitry, and test circuitry. The image processing circuitry is configured to generate first output data during a first display update period and generate second output data during a second display update period. The driver circuitry is configured to update a display panel based on the first output data during the first display update period and update the display panel based on the second output data during the second display update period. The test circuitry is configured to test the image processing circuitry during a test period disposed between the first display update period and the second display update period.Type: GrantFiled: November 12, 2020Date of Patent: November 22, 2022Assignee: Synaptics IncorporatedInventors: Masao Orio, Takashi Nose, Hirobumi Furihata, Akio Sugiyama, Kota Kitamura, Chirinjeev Singh, Dipankar Talukdar, Guozhong Shen
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Publication number: 20220148470Abstract: A display driver includes image processing circuitry, driver circuitry, and test circuitry. The image processing circuitry is configured to generate first output data during a first display update period and generate second output data during a second display update period. The driver circuitry is configured to update a display panel based on the first output data during the first display update period and update the display panel based on the second output data during the second display update period. The test circuitry is configured to test the image processing circuitry during a test period disposed between the first display update period and the second display update period.Type: ApplicationFiled: November 12, 2020Publication date: May 12, 2022Applicant: Synaptics IncorporatedInventors: Masao Orio, Takashi Nose, Hirobumi Furihata, Akio Sugiyama, Kota Kitamura, Chirinjeev Singh, Dipankar Talukdar, Guozhong Shen
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Patent number: 11120732Abstract: A display driver includes: a receiver configured to receive image data of each line of a display panel from an external device; a line latch circuit having a line latch configured to latch the image data of each line received by the receiver in response to a strobe signal; a driving circuit section which drives the display panel in response to the image data latched by the line latch; and a timing controller configured to generate the strobe signal. The receiver is configured to detect occurrence of transmission error in data transmission about each line. The timing controller is configured to generate the strobe signal in response to a detection result of the occurrence of transmission error.Type: GrantFiled: February 19, 2020Date of Patent: September 14, 2021Assignee: Synaptics IncorporatedInventors: Kenji Yamazumi, Hirokazu Hatayama, Prashant Shamarao, Kota Kitamura
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Patent number: 10916176Abstract: A display driver includes a plurality of source amplifiers configured to drive a plurality of source lines of a display panel, and an amplifier control system configured to control the source amplifiers. Each of the source amplifiers is configured to drive a source line with a drive voltage corresponding to a grayscale value specified by an image data associated with each of the source amplifiers. The amplifier control system is configured to control execution and stopping of an amplifying operation of each of the source amplifiers based on the image data associated with each of the source amplifiers is a grayscale value corresponding to black portions of the display panel.Type: GrantFiled: July 26, 2018Date of Patent: February 9, 2021Assignee: Synaptics Japan GKInventors: Kota Kitamura, Makoto Kimura
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Publication number: 20200313511Abstract: A motor for electric power tools according to an embodiment includes: a rotor having a rotational shaft; a stator having a coil to rotate the rotor; a first substrate mounting a sensor element to detect a rotational position of the rotor; and a second substrate mounting a switching element to change, based on a result of detection by the sensor element, a conducting direction in which a current flows with respect to the coil. The first substrate and the second substrate are arranged side by side along, and intersect at right angles with, the rotational shaft.Type: ApplicationFiled: March 24, 2020Publication date: October 1, 2020Inventors: Itaru Murui, Masari Muramatsu, Motoharu Muto, Kota Kitamura
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Publication number: 20200184879Abstract: A display driver includes: a receiver configured to receive image data of each line of a display panel from an external device; a line latch circuit having a line latch configured to latch the image data of each line received by the receiver in response to a strobe signal; a driving circuit section which drives the display panel in response to the image data latched by the line latch; and a timing controller configured to generate the strobe signal. The receiver is configured to detect occurrence of transmission error in data transmission about each line. The timing controller is configured to generate the strobe signal in response to a detection result of the occurrence of transmission error.Type: ApplicationFiled: February 19, 2020Publication date: June 11, 2020Inventors: Kenji YAMAZUMI, Hirokazu HATAYAMA, Prashant SHAMARAO, Kota KITAMURA
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Patent number: 10614747Abstract: A display driver includes: a receiver configured to receive image data of each line of a display panel from an external device; a line latch circuit having a line latch configured to latch the image data of each line received by the receiver in response to a strobe signal; a driving circuit section which drives the display panel in response to the image data latched by the line latch; and a timing controller configured to generate the strobe signal. The receiver is configured to detect occurrence of transmission error in data transmission about each line. The timing controller is configured to generate the strobe signal in response to a detection result of the occurrence of transmission error.Type: GrantFiled: January 31, 2017Date of Patent: April 7, 2020Assignee: SYNAPTICS INCORPORATEDInventors: Kenji Yamazumi, Hirokazu Hatayama, Prashant Shamarao, Kota Kitamura
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Patent number: 10530224Abstract: A motor includes: a stator; a rotor axially aligned with the stator; a circuit board; and a heat dissipating plate. The stator includes: an iron core including teeth; an insulator covering one end surface, in the axial direction, of the iron core; and a coil wound around the teeth. The insulator includes an electrically insulating material having a lower rate of heat transfer than a material included in the iron core. The heat dissipating plate is attached to the insulator in a state in which the heat dissipating plate is in contact with the insulator without being in contact with the iron core, and the circuit board is attached to the heat dissipating plate in a state in which the circuit board is in contact with the heat dissipating plate without being in contact with the iron core.Type: GrantFiled: December 9, 2015Date of Patent: January 7, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kota Kitamura, Hidenori Shimizu, Atsushi Takeyama, Motoharu Muto, Daiju Kinoshita
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Patent number: 10491072Abstract: An inner-rotor-type motor is configured such that a projecting portion is formed on an inner circumferential surface of a housing, a recess portion is formed on an outer circumferential surface of a stator, the stator is positioned with respect to the housing by the recess portion and the projecting portion being fitted to each other, the stator is configured by an annular insulator having an attachment surface being brought into close contact with a core end surface at one axial end of a stator core, a sensor substrate is attached to the insulator so as to be capable of detecting a rotation angle of a rotor, the recess portion of the stator is configured by a cutout portion being formed in an area that is a part of an outer circumferential surface of the insulator and includes a portion that is brought into close contact with the core end surface.Type: GrantFiled: November 11, 2015Date of Patent: November 26, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kota Kitamura, Hiroyuki Tsubakimoto, Ryohei Oishi
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Patent number: 10355538Abstract: A brushless motor includes: a stator core having a cylindrical yoke portion and a teeth portion having a shape protruding from an inner circumferential surface of the yoke portion; and a rotor that is disposed inside the stator core, spaced apart from the teeth portion, and uses a center axis of the yoke portion as an axis of rotation. The yoke portion includes, on its outer circumferential surface, a notch portion at a position on the back side of the teeth portion. The notch portion has a circumferential width smaller than a circumferential width of the teeth portion.Type: GrantFiled: October 9, 2015Date of Patent: July 16, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kota Kitamura, Hidenori Shimizu, Atsushi Takeyama, Motoharu Muto, Hiroyuki Tsubakimoto, Koichi Hashimoto
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Publication number: 20190043410Abstract: A display driver includes a plurality of source amplifiers configured to drive a plurality of source lines of a display panel, and an amplifier control system configured to control the source amplifiers. Each of the source amplifiers is configured to drive a source line with a drive voltage corresponding to a grayscale value specified by an image data associated with each of the source amplifiers. The amplifier control system is configured to control execution and stopping of an amplifying operation of each of the source amplifiers based on the image data associated with each of the source amplifiers is a grayscale value corresponding to black portions of the display panel.Type: ApplicationFiled: July 26, 2018Publication date: February 7, 2019Inventors: Kota KITAMURA, Makoto KIMURA