Patents by Inventor Takahiro Tokumiya

Takahiro Tokumiya 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: 20230187249
    Abstract: A mounting device includes: a bonding head configured to hold a first object, a bonding stage configured to hold a second object, and a dual-field-of-view (FOV) optical system including an image sensor configured to simultaneously capture an image of a first alignment mark on the first object and an image of a second alignment mark on the second object to obtain a first image. At least one of the bonding head and the bonding stage is configured to adjust a relative position between the first object and the second object based on the first image, and bond the first object to the second object.
    Type: Application
    Filed: December 9, 2022
    Publication date: June 15, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Daisuke NAGATOMO, Fumitaka Moroishi, Masanori Izumita, Shinji Ueyama, Takahiro Tokumiya, Takamasa Sugiura, Tatsuya Ishimoto, Masato Kajinami
  • Publication number: 20230178394
    Abstract: A chip peeling apparatus may include a peeling device. The peeling device may include a plurality of vacuum adsorption holes and a plurality of first air blow holes arranged around the plurality of vacuum adsorption holes. The peeling device may be configured to peel a chip off a tape when the peeling device is arranged below a region of the tape on which the chip is attached, vacuum pressure is applied through the plurality of vacuum adsorption holes to adsorb the peeling device to the region of the tape, and a first air blow is directed through the plurality of first air blow holes to the region of the tape.
    Type: Application
    Filed: December 7, 2022
    Publication date: June 8, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Tatsuya ISHIMOTO, Naoyuki TAKADA, Takahiro TOKUMIYA, Masato KAJINAMI
  • Publication number: 20220216077
    Abstract: An apparatus for manufacturing a semiconductor device includes a bonding head configured to adsorb and hold a mounting component at a pick-up position, to move between the pick-up position and a mounting position, and to mount the mounting component on a substrate that is on a bonding stage; a camera configured to move together with the bonding head and to capture an image of the mounting component and an image of the substrate; an optical system configured to transmit light between the mounting component and the camera; a fiducial mark configured to move together with the camera in a capturing range of the camera; and a controller configured to correct a positional relationship between the mounting component and the substrate based on a first image including the fiducial mark and the mounting component and a second image including the fiducial mark and the substrate.
    Type: Application
    Filed: December 7, 2021
    Publication date: July 7, 2022
    Inventors: Daisuke Nagatomo, Fumitaka Moroishi, Masanori Izumita, Shinji Ueyama, Takahiro Tokumiya, Takamasa Sugiura, Tatsuya Ishimoto, Masato Kajinami
  • Patent number: 11344208
    Abstract: Provided is a blood pressure measuring apparatus, a wrist watch type terminal, and a method of measuring blood pressure. The blood pressure measuring apparatus includes a light source that emits light onto a living body, a light receiver that receives light from the living body, and a signal processing device that calculates the blood pressure based on a detected signal received from the light receiver, wherein the signal processing device includes a subtractor that obtains a subtraction value by subtracting a moving average value of the detected signal in a second duration which is shorter than a first duration from a moving average value of the detection signal in the first duration, an extractor that extracts a feature point of a pulse wave based on the subtraction value, and a converter that converts a feature amount obtained based on the feature point to a blood pressure value.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: May 31, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yosuke Aoyagi, Takeshi Nagahiro, Takahiro Tokumiya
  • Patent number: 11171018
    Abstract: A method of fabricating a semiconductor device with improved quality and an encapsulant are provided. The method may include coating a chip wafer including a plurality of semiconductor chips with an encapsulant, performing a pre-curing process to bring the encapsulant into a B-stage, dicing the chip wafer to divide the chip wafer into a plurality of semiconductor chips, forming a chip stack by stacking the semiconductor chip on the base wafer in such a way that a coupling electrode on the base wafer and a bump electrode of each of the semiconductor chips face each other with a conductive adhesive element interposed therebetween, performing a reflow process on the chip stack under pressurized gas to bond the coupling electrode and the bump electrode to each other with the conductive adhesive element interposed therebetween, and performing a post-curing process on the chip stack under pressurized gas to bring the encapsulant into a C-stage.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: November 9, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Takahiro Tokumiya, Tatsuya Ishimoto
  • Publication number: 20210111040
    Abstract: A method of fabricating a semiconductor device with improved quality and an encapsulant are provided. The method may include coating a chip wafer including a plurality of semiconductor chips with an encapsulant, performing a pre-curing process to bring the encapsulant into a B-stage, dicing the chip wafer to divide the chip wafer into a plurality of semiconductor chips, forming a chip stack by stacking the semiconductor chip on the base wafer in such a way that a coupling electrode on the base wafer and a bump electrode of each of the semiconductor chips face each other with a conductive adhesive element interposed therebetween, performing a reflow process on the chip stack under pressurized gas to bond the coupling electrode and the bump electrode to each other with the conductive adhesive element interposed therebetween, and performing a post-curing process on the chip stack under pressurized gas to bring the encapsulant into a C-stage.
    Type: Application
    Filed: August 24, 2020
    Publication date: April 15, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Takahiro Tokumiya, Tatsuya Ishimoto
  • Publication number: 20210043478
    Abstract: A pressure heating apparatus that uniformly heats an object in a chamber in a short time includes a stage onto which the object is loaded; a heating light source that faces the stage, where the heating light source heats the object a non-contact manner while irradiating light onto the object; and a lower reflector disposed around the stage and that reflects light emitted from the heating light source toward the object.
    Type: Application
    Filed: August 6, 2020
    Publication date: February 11, 2021
    Inventors: TATSUYA ISHIMOTO, AKIHIRO KOMATSU, TAKAHIRO TOKUMIYA, JOONGHA LEE, YOUNGBUM KIM
  • Publication number: 20190038152
    Abstract: Provided is a blood pressure measuring apparatus, a wrist watch type terminal, and a method of measuring blood pressure. The blood pressure measuring apparatus includes a light source that emits light onto a living body, a light receiver that receives light from the living body, and a signal processing device that calculates the blood pressure based on a detected signal received from the light receiver, wherein the signal processing device includes a subtractor that obtains a subtraction value by subtracting a moving average value of the detected signal in a second duration which is shorter than a first duration from a moving average value of the detection signal in the first duration, an extractor that extracts a feature point of a pulse wave based on the subtraction value, and a converter that converts a feature amount obtained based on the feature point to a blood pressure value.
    Type: Application
    Filed: October 11, 2018
    Publication date: February 7, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yosuke AOYAGI, Takeshi NAGAHIRO, Takahiro TOKUMIYA
  • Patent number: 9772222
    Abstract: A photoelectric sensor retainer and a photoelectric pulse wave measuring apparatus including the same are provided. The photoelectric sensor retainer includes a sensor mounting unit on which a photoelectric sensor having a light-receiving surface is attachable and detachable, the light-receiving surface facing a measuring direction. The photoelectric sensor retainer further includes a pressing unit configured to press an upper surface of the sensor mounting unit in the measuring direction to apply pressure to the sensor mounting unit, and a pedestal including a seating plate configured to support the pressing unit, the seating plate having a principal plane perpendicular to a pressing direction of the pressing unit.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: September 26, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Wen Xi Chen, Takeshi Nagahiro, Yosuke Aoyagi, Naoyuki Takada, Takahiro Tokumiya
  • Patent number: 9526862
    Abstract: A medical tube which is highly flexible and has a very small diameter and a flexibility-variable mechanism having the medical tube are provided. The medical tube includes an interior tube and a plurality of annular segments of a cylindrical shape into which the interior tube is inserted. The medical tube is configured by sequentially connecting the plurality of annular segments while the interior tube is inserted inside of the plurality of annular segments. Each annular segment includes a fitting portion that allows any other annular segment to be fitted to the annular segment, and a fitted portion which may be fitted on the fitting portion of any other annular segment, which has a diameter that increases toward an end of the annular segment and includes at least one slit extending in a direction crossing a diametric direction.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: December 27, 2016
    Assignees: Samsung Electronics Co., Ltd, The University of Tokyo
    Inventors: Kazuo Iijima, Ken Masamune, Takahiro Tokumiya, Siyang Zuo
  • Publication number: 20160157741
    Abstract: A photoelectric sensor retainer and a photoelectric pulse wave measuring apparatus including the same are provided. The photoelectric sensor retainer includes a sensor mounting unit on which a photoelectric sensor having a light-receiving surface is attachable and detachable, the light-receiving surface facing a measuring direction. The photoelectric sensor retainer further includes a pressing unit configured to press an upper surface of the sensor mounting unit in the measuring direction to apply pressure to the sensor mounting unit, and a pedestal including a seating plate configured to support the pressing unit, the seating plate having a principal plane perpendicular to a pressing direction of the pressing unit.
    Type: Application
    Filed: December 4, 2015
    Publication date: June 9, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Wen Xi CHEN, Takeshi NAGAHIRO, Yosuke AOYAGI, Naoyuki TAKADA, Takahiro TOKUMIYA
  • Publication number: 20160113529
    Abstract: Provided is a blood pressure measuring apparatus, a wrist watch type terminal, and a method of measuring blood pressure. The blood pressure measuring apparatus includes a light source that emits light onto a living body, a light receiver that receives light from the living body, and a signal processing device that calculates the blood pressure based on a detected signal received from the light receiver, wherein the signal processing device includes a subtractor that obtains a subtraction value by subtracting a moving average value of the detected signal in a second duration which is shorter than a first duration from a moving average value of the detection signal in the first duration, an extractor that extracts a feature point of a pulse wave based on the subtraction value, and a converter that converts a feature amount obtained based on the feature point to a blood pressure value.
    Type: Application
    Filed: July 29, 2015
    Publication date: April 28, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yosuke AOYAGI, Takeshi NAGAHIRO, Takahiro TOKUMIYA
  • Publication number: 20160113530
    Abstract: A method and an apparatus for acquiring biological information, and a wrist watch-type terminal using the same, are provided. The apparatus includes a first detector configured to irradiate a living body with a first light of a first wavelength, and detect a second light that is reflected from the living body, and a second detector configured to irradiate the living body with a third light of a second wavelength, and detect a fourth light that is reflected from the living body. The apparatus further includes a processor configured to determine a pulse wave of the living body based on a subtraction value of subtracting a detection signal that is determined by irradiating the third light of the second wavelength from a detection signal that is determined by irradiating the first light of the first wavelength.
    Type: Application
    Filed: October 23, 2015
    Publication date: April 28, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: TAKESHI NAGAHIRO, Takahiro TOKUMIYA, Naoyuki TAKADA, Yosuke AOYAGI
  • Publication number: 20140188054
    Abstract: A medical tube which is highly flexible and has a very small diameter and a flexibility-variable mechanism having the medical tube are provided. The medical tube includes an interior tube and a plurality of annular segments of a cylindrical shape into which the interior tube is inserted. The medical tube is configured by sequentially connecting the plurality of annular segments while the interior tube is inserted inside of the plurality of annular segments. Each annular segment includes a fitting portion that allows any other annular segment to be fitted to the annular segment, and a fitted portion which may be fitted on the fitting portion of any other annular segment, which has a diameter that increases toward an end of the annular segment and includes at least one slit extending in a direction crossing a diametric direction.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 3, 2014
    Applicants: The University of Tokyo, Samsung Electronics Co., Ltd.
    Inventors: Kazuo IIJIMA, Ken Masamune, Takahiro Tokumiya, Siyang Zuo
  • Publication number: 20070064341
    Abstract: A hard disk drive (HDD) including a disk, a spindle motor to rotate the disk, the spindle motor including a spindle shaft, a plurality of magnetic circuits having cores and coils wound around the cores, the magnetic circuits being installed along a peripheral portion of the spindle shaft, a base plate to support the spindle motor, and an actuator to move a head. The magnetic circuits include a first magnetic circuit installed in an operating region of the actuator, and a second magnetic circuit installed outside the operating region of the actuator. The first and second magnetic circuits have different shapes. The first magnetic circuit has a larger length in a respective core direction thereof parallel to the base plate and the second magnetic circuit has a larger thickness in a direction perpendicular to the respective core direction and perpendicular to the base plate.
    Type: Application
    Filed: September 19, 2006
    Publication date: March 22, 2007
    Inventors: Young Son, Keiichiro Yoshida, Takahiro Tokumiya
  • Publication number: 20070058292
    Abstract: A spindle motor assembly usable with a hard disk drive includes at least one data storage disk, a spindle motor to drive the disk, the spindle motor having a hub on which the data storage disk is fixed, and a clamp member to fix the data storage disk to the hub by pressing the data storage disk axially toward the hub. When the clamp member presses a first location of the data storage disk and the hub has a supporting center corresponding to a second location of the data storage disk, the first location is closer to a center of the data storage than the second location.
    Type: Application
    Filed: September 11, 2006
    Publication date: March 15, 2007
    Inventors: Sung-kwon Choi, Haeng-soo Lee, Yusuke Kanayama, Takahiro Tokumiya
  • Publication number: 20060103975
    Abstract: A disk driving apparatus includes a bearing sleeve having a cylindrical shape, a shaft rotatably supported in the bearing sleeve, a hub coupled to the shaft and having a support portion which supports a disk medium outside of the bearing sleeve, the hub further having a male screw portion formed on an outer circumferential surface of an upper end portion thereof, a clamp having a hole formed at the center thereof, in which the upper end portion of the hub is inserted, and which clamps the disk medium with the support portion of the hub, and a nut screw-coupled to the male screw portion of the hub and which provides a clamping force of the clamp.
    Type: Application
    Filed: November 3, 2005
    Publication date: May 18, 2006
    Inventors: Takahiro Tokumiya, Keiichiro Yoshida