Patents by Inventor Masahito Kobayashi

Masahito Kobayashi 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).

  • Patent number: 10950265
    Abstract: A method of operating a data storage device is disclosed comprising an enclosure comprising a first head actuated over a first disk surface and a second head actuated over a second disk surface. A manufacture printed circuit board (PCB) is coupled to the enclosure, wherein the manufacture PCB comprises at least one dual channel configured to execute concurrent access operations. While the manufacture PCB is coupled to the enclosure, the data storage device is operated as a dual channel device. The manufacture PCB is decoupled from the enclosure and a product PCB is coupled to the enclosure, wherein the product PCB comprises a single channel configured to execute a single access operation.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: March 16, 2021
    Assignee: Western Digital Technologies, Inc.
    Inventors: Junzo Noda, John T. Contreras, Robert C. Reinhart, Michael J. Esmond, Masahito Kobayashi, Alec Parken
  • Patent number: 10901332
    Abstract: In an image forming apparatus, a cleaning member is pressed against a circumferential surface of an image bearing member and collects a toner remaining on the circumferential surface of the image bearing member. The toner has a number average roundness of 0.965 to 0.998. The toner has a D50 of 4.0 ?m to 7.0 ?m. A linear pressure of the cleaning member on the circumferential surface of the image bearing member is 10 N/m to 40 N/m. The image bearing member includes a single-layer photosensitive layer containing a charge generating material and a hole transport material. Ionization potential IpHTM of the hole transport material and ionization potential IpCGM of the charge generating material satisfy mathematical formula (1) “IpHTM?5.30 eV”, mathematical formula (2) “IpCGM?5.30 eV”, and mathematical formula (3) “0.09 eV?|IpHTM?IpCGM|?0.30 eV”.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: January 26, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Toshiki Fujita, Nariaki Tanaka, Masahito Ishino, Kiyotaka Kobayashi
  • Patent number: 10896695
    Abstract: A data storage device is disclosed comprising a top head actuated over a top surface of a first disk, a bottom head actuated over a bottom surface of the first disk, a top head actuated over a top surface of a second disk, and a bottom head actuated over a bottom surface of the second disk. A dual channel preamp circuit is coupled to the top and bottom heads of the first and second disks, wherein a selection signal is applied to the dual channel preamp circuit to select between the first disk and the second disk. A concurrent access operation of the top and bottom surface of the selected disk is executed using the dual channel preamp circuit.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: January 19, 2021
    Assignee: Western Digital Technologies, Inc.
    Inventors: Junzo Noda, John T. Contreras, Masahito Kobayashi
  • Publication number: 20200408828
    Abstract: A testing device for inspecting an electronic device by causing contact terminals to electrically contact the electronic device, includes: a mounting table formed with a light transmission member opposite the side on which a inspection object is placed and having therein a coolant flow path through which a coolant capable of transmitting light flows; a light irradiation mechanism disposed so as to face the surface opposite the inspection object placement side of the mounting table, and having LEDs pointing toward the inspection object; and a controller controlling absorption of heat by the coolant and heating by the lights from the LEDs to control the temperature of the electronic device to be inspected. The controller controls the light output from the LEDs based on the measured temperature of the electronic device to be inspected and controls the absorption of heat by the coolant based on the LED light output.
    Type: Application
    Filed: February 19, 2019
    Publication date: December 31, 2020
    Inventors: Shigeru KASAI, Masahito KOBAYASHI
  • Patent number: 10821994
    Abstract: Provided is a semiconductor integrated circuit which can continuously and stably generate an output value even after shipment and a vehicle-mounted control device using the semiconductor integrated circuit. The present invention includes a reference signal generation unit for outputting a reference signal, and detects the operation state of a semiconductor circuit on the basis of a difference between output values from the semiconductor circuit corresponding to the reference signals output at two different time points by the reference signal generation unit.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: November 3, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Youichirou Kobayashi, Masahito Sonehara
  • Patent number: 10772587
    Abstract: Provided is a radiation irradiation device that can restrict movement of an arm part during device movement without providing a mechanism that becomes a user's obstacle. The radiation irradiation device includes a radiation generation unit that generates radiation; an arm part having one end to which the radiation generation unit is attached; a support member having one end to which the other end of the arm part is connected so as to be rotationally movable; a body part to which the other end of the support member is connected; a leg part that is provided on a bottom surface of the body part and is capable of traveling on a device placement surface; and an arm locking part that restricts the rotational movement of the arm part. The arm locking part is provided inside the arm part.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: September 15, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Masahito Sanbuichi, Koichi Eguchi, Takeyasu Kobayashi, Yusuke Kitagawa
  • Patent number: 10764662
    Abstract: To provide an enclosure structure having relatively high rigidity to a speaker system mounted on a vehicle, and to improve frequency characteristics of sound pressure. The speaker system includes: a hollow framework member extending in a front-back direction of a vehicle; and a speaker unit installed such that an internal space of the framework member is usable as a back cavity. The framework member has a partition member at at least one end of the internal space, and spatial path lengths from the speaker unit to both longitudinal ends of the internal space are substantially the same.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: September 1, 2020
    Assignees: DENSO TEN Limited, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masashi Nakamura, Masahito Isayama, Takashi Moriki, Kazuhiko Hamada, Isamu Umegaki, Shunsuke Kobayashi, Koji Sagata
  • Publication number: 20200258544
    Abstract: A storage device comprises tape reel(s) holding tape media for storing data, a head assembly, motor(s) configured to actuate the head assembly, a sealed casing, and a printed circuit board assembly (PCBA) configured to control operations of the motor(s). The head assembly comprises a support structure, a head bar with read head(s) and write head(s), and a suspension system connecting the head bar to the support structure. The sealed casing encloses in its interior the tape reel(s), the head assembly, and the motor(s). Meanwhile, the PCBA is mounted on an external surface of the casing.
    Type: Application
    Filed: March 26, 2019
    Publication date: August 13, 2020
    Inventor: Masahito KOBAYASHI
  • Patent number: 10698359
    Abstract: An image forming apparatus includes an image bearing member and a static elimination device. The static elimination device irradiates static elimination light onto a circumferential surface of the image bearing member. The image bearing member includes a conductive substrate and a single-layer photosensitive layer. The photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The static elimination light has a wavelength of at least 600 nm and no greater than 800 nm. The photosensitive layer has an optical absorption coefficient of at least 600 cm?1 and no greater than 1,500 cm?1 with respect to light having a wavelength of 660 nm.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: June 30, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Toshiki Fujita, Ikuo Makie, Masahito Ishino, Nariaki Tanaka, Kiyotaka Kobayashi
  • Publication number: 20200174066
    Abstract: A temperature control device for controlling a temperature of an object, the temperature control device includes a heater having a heating source configured to heat the object, a cooler having a cooling source configured to cool the object; and a temperature controller configured to control the heating source and the cooling source. The temperature controller includes a sliding mode controller configured to supply power to the heating source as an operation amount, a cooling mode controller configured to supply power to the cooling source as an operation amount, and a switching controller configured to determine whether an output of the sliding mode controller will be output to the heating source as a first operation amount, or an output of the cooling mode controller will be used as a second operation amount, based on a nonlinear term value of the output of the sliding mode controller.
    Type: Application
    Filed: November 27, 2019
    Publication date: June 4, 2020
    Inventors: Masahito KOBAYASHI, Shigeru KASAI
  • Patent number: 10665255
    Abstract: A data storage device is disclosed comprising a disk comprising servo data, a spindle motor configured to rotate the disk, and a head actuated over the disk. A position error signal (PES) is generated based on the servo data, and the head is actuated over the disk based on the PES. While swinging a speed of the spindle motor, the swinging is disabled based on the PES.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: May 26, 2020
    Assignee: Western Digital Technologies, Inc.
    Inventors: Peng Huang, Toshihisa Kiyonaga, Masahito Kobayashi, Hiroaki Sakuma
  • Patent number: 10650992
    Abstract: In a switch device, an operating knob is capable of being pushed so as to swing around a first axis from a non-operated position to a predetermined push operation position with respect to a switch case and is capable of being toggled so as to swing around a second axis that is orthogonal to the first axis from the non-operated position to a predetermined toggle operation position. A first engagement portion where the operating knob engages with a push switch is disposed on the second axis, and a second engagement portion where the operating knob engages with a toggle switch is disposed at a position closer to the first axis in a direction along the second axis than the first engagement portion where the operating knob engages with the push switch.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: May 12, 2020
    Assignee: Toyo Denso Co., Ltd.
    Inventors: Masahito Kobayashi, Naoto Ootsuka
  • Patent number: 10635013
    Abstract: An image forming apparatus includes an image bearing member, a charger, and a cleaning member. The charger charges a circumferential surface of the image bearing member to a positive polarity. The cleaning member is pressed against the circumferential surface of the image bearing member and collects a toner remaining on the circumferential surface of the image bearing member. A linear pressure N of the cleaning member on the circumferential surface of the image bearing member is at least 14 N/m and no greater than 40 N/m. A rebound resilience R of the cleaning member at a temperature of 25° C. is at least 38%. The leaner pressure N and the rebound resilience R satisfy mathematical formula (1A). The image bearing member satisfies mathematical formula (1B). R < 13.771 × N 0.4043 ( 1 ? A ) 0.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: April 28, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Masahito Ishino, Nariaki Tanaka, Toshiki Fujita, Teppei Shibuya, Kiyotaka Kobayashi
  • Publication number: 20200041949
    Abstract: An image forming apparatus includes an image bearing member, a charger, and a cleaning member. The charger charges a circumferential surface of the image bearing member to a positive polarity. The cleaning member is pressed against the circumferential surface of the image bearing member and collects a toner remaining on the circumferential surface of the image bearing member. A linear pressure of the cleaning member on the circumferential surface of the image bearing member is at least 10 N/m and no greater than 40 N/m. The image bearing member includes a conductive substrate and a single-layer photosensitive layer. The single-layer photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The image bearing member satisfies formula (1) 0.60 ? V ( Q / S ) × ( d / ? r · ? 0 ) .
    Type: Application
    Filed: July 9, 2019
    Publication date: February 6, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Masahito ISHINO, Nariaki TANAKA, Toshiki FUJITA, Teppei SHIBUYA, Kiyotaka KOBAYASHI
  • Publication number: 20200041917
    Abstract: In an image forming apparatus, a cleaning member is pressed against a circumferential surface of an image bearing member and collects a toner remaining on the circumferential surface of the image bearing member. The toner has a number average roundness of 0.965 to 0.998. The toner has a D50 of 4.0 ?m to 7.0 ?m. A linear pressure of the cleaning member on the circumferential surface of the image bearing member is 10 N/m to 40 N/m. The image bearing member includes a single-layer photosensitive layer containing a charge generating material and a hole transport material. Ionization potential IpHTM of the hole transport material and ionization potential IpCGM of the charge generating material satisfy mathematical formula (1) “IpHTM?5.30 eV”, mathematical formula (2) “IpCGM?5.30 eV”, and mathematical formula (3) “0.09 eV?|IpHTM?IpCGM|?0.30 eV”.
    Type: Application
    Filed: July 9, 2019
    Publication date: February 6, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Toshiki FUJITA, Nariaki TANAKA, Masahito ISHINO, Kiyotaka KOBAYASHI
  • Publication number: 20200041923
    Abstract: An image forming apparatus includes an image bearing member, a charger, and a cleaning member. The charger charges a circumferential surface of the image bearing member to a positive polarity. The cleaning member is pressed against the circumferential surface of the image bearing member and collects a toner remaining on the circumferential surface of the image bearing member. A linear pressure N of the cleaning member on the circumferential surface of the image bearing member is at least 14 N/m and no greater than 40 N/m. A rebound resilience R of the cleaning member at a temperature of 25° C. is at least 38%. The leaner pressure N and the rebound resilience R satisfy mathematical formula (1A). The image bearing member satisfies mathematical formula (1B) R < 13.771 × N 0.4043 ( 1 ? A ) 0.
    Type: Application
    Filed: July 9, 2019
    Publication date: February 6, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Masahito ISHINO, Nariaki TANAKA, Toshiki FUJITA, Teppei SHIBUYA, Kiyotaka KOBAYASHI
  • Publication number: 20200041950
    Abstract: An image forming apparatus includes an image bearing member and a static elimination device. The static elimination device irradiates static elimination light onto a circumferential surface of the image bearing member. The image bearing member includes a conductive substrate and a single-layer photosensitive layer. The photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The static elimination light has a wavelength of at least 600 nm and no greater than 800 nm. The photosensitive layer has an optical absorption coefficient of at least 600 cm?1 and no greater than 1,500 cm?1 with respect to light having a wavelength of 660 nm.
    Type: Application
    Filed: July 9, 2019
    Publication date: February 6, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Toshiki FUJITA, Ikuo MAKIE, Masahito ISHINO, Nariaki TANAKA, Kiyotaka KOBAYASHI
  • Publication number: 20190313173
    Abstract: To provide an enclosure structure having relatively high rigidity to a speaker system mounted on a vehicle, and to improve frequency characteristics of sound pressure. The speaker system includes: a hollow framework member extending in a front-back direction of a vehicle; and a speaker unit installed such that an internal space of the framework member is usable as a back cavity. The framework member has a partition member at at least one end of the internal space, and spatial path lengths from the speaker unit to both longitudinal ends of the internal space are substantially the same.
    Type: Application
    Filed: March 20, 2019
    Publication date: October 10, 2019
    Applicants: DENSO TEN Limited, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masashi NAKAMURA, Masahito ISAYAMA, Takashi MORIKI, Kazuhiko HAMADA, Isamu UMEGAKI, Shunsuke KOBAYASHI, Koji SAGATA
  • Patent number: 10410657
    Abstract: A data storage device is disclosed comprising a first actuator configured to actuate a first head over a first disk surface, and a second actuator configured to actuate a second head over a second disk surface. A seeking control signal is generated and used to control the first actuator to seek the first head over the first disk surface. The seeking control signal is filtered with a decoupler to generate a decoupler control signal, wherein the decoupler comprises a nominal decoupler and an adaptive decoupler. A tracking control signal is generated based on the decoupler control signal, and the tracking control signal is used to control the second actuator in order to access the second disk surface using the second head.
    Type: Grant
    Filed: January 19, 2019
    Date of Patent: September 10, 2019
    Assignee: Western Digital Technologies, Inc.
    Inventors: Jianguo Zhou, Masahito Kobayashi, Tetsuo Semba, Feng Hong, Hidehiko Numasato
  • Publication number: 20190260198
    Abstract: There is provided an electronic control unit capable of detecting an abnormality of a dark current while suppressing increase in the size of a circuit. The electronic control unit includes a control unit that operates with a current supplied via a power-supply input terminal from a battery, and a diode arranged on a power supply path connecting the power-supply input terminal with the control unit and serving as a reverse connection protection element that prevents a reverse current when the battery is reversely connected to the power-supply input terminal, and detects an abnormality of a dark current flowing through the diode based on a voltage difference between a voltage on the power-supply input terminal side of the diode and a voltage on the control unit side.
    Type: Application
    Filed: June 12, 2017
    Publication date: August 22, 2019
    Inventors: Masahito SONEHARA, Yoichiro KOBAYASHI