Patents by Inventor Takayuki Kawano

Takayuki Kawano 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: 11962274
    Abstract: An amplifier device includes an amplifier including cascade-connected power amplifiers in a plurality of stages and a bias circuit configured to supply bias currents to the amplifier. A bias current supplied to a power amplifier in the first stage of the power amplifiers in the plurality of stages exhibits a positive temperature characteristic. A bias current supplied to a power amplifier in the final stage exhibits a negative temperature characteristic.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: April 16, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Tsutomu Oonaro, Masamichi Tokuda, Makoto Tabei, Kazuaki Deguchi, Takayuki Kawano
  • Patent number: 11601102
    Abstract: A power amplifier circuit includes a first transistor disposed on a semiconductor substrate; a second transistor disposed on the semiconductor substrate and configured to supply a bias current based on a first current which is a part of a control current to the first transistor; a third transistor disposed on the semiconductor substrate and having a collector configured to be supplied with a second current which is a part of the control current and an emitter configured to output a third current based on the second current; a first bump electrically connected to an emitter of the first transistor and disposed so as to overlap a first disposition area in which the first transistor is disposed in plan view of the semiconductor substrate; and a second bump disposed so as to overlap a second disposition area in which the third transistor is disposed in the plan view.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: March 7, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroaki Tokuya, Hideyuki Sato, Fumio Harima, Kenichi Shimamoto, Satoshi Tanaka, Takayuki Kawano, Ryoki Shikishima, Atsushi Kurokawa
  • Patent number: 11558049
    Abstract: A bias circuit supplies bias voltage to a linear detector circuit. The bias circuit includes a transistor including a collector terminal, an emitter terminal, and a base terminal; a resistance element having one end connected to the collector terminal and the other end connected to a power line and the base terminal; a resistance element having one end connected to the emitter terminal; a transistor that switches between connection and disconnection between the resistance element and ground; collector voltage extended lines that transmit voltage corresponding to collector voltage as the bias voltage; and a transistor that is arranged on a path of one of the collector voltage extended lines and that switches between connection and disconnection between an output terminal of the linear detector circuit and the collector terminal.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: January 17, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hideyo Yamashiro, Takayuki Kawano
  • Patent number: 11456707
    Abstract: A power amplifier circuit includes a power amplifier that amplifies the power of a high frequency signal, a power amplifier temperature detector circuit that includes a temperature detection element, the temperature detection element being thermally coupled with the power amplifier, a bias control signal generator circuit that generates a bias control signal for the power amplifier based on a temperature detection signal outputted from the power amplifier temperature detector circuit, and a regulator circuit that stabilizes the temperature detection signal. The power amplifier, the power amplifier temperature detector circuit, and the regulator circuit are formed in a first integrated circuit, and the bias control signal generator circuit is formed in a second integrated circuit. The substrate material (for example, GaAs) of the first integrated circuit has a higher cutoff frequency than the substrate material (for example, SOI) of the second integrated circuit.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: September 27, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shunsuke Kobayashi, Takayuki Kawano
  • Publication number: 20220069777
    Abstract: An amplifier device includes an amplifier including cascade-connected power amplifiers in a plurality of stages and a bias circuit configured to supply bias currents to the amplifier. A bias current supplied to a power amplifier in the first stage of the power amplifiers in the plurality of stages exhibits a positive temperature characteristic. A bias current supplied to a power amplifier in the final stage exhibits a negative temperature characteristic.
    Type: Application
    Filed: August 13, 2021
    Publication date: March 3, 2022
    Inventors: Tsutomu OONARO, Masamichi TOKUDA, Makoto TABEI, Kazuaki DEGUCHI, Takayuki KAWANO
  • Publication number: 20210310878
    Abstract: A temperature detection circuit (1) includes a first transistor (Q1) of a bipolar type, and a second transistor (Q2) of a bipolar type, wherein the first transistor (Q1) and the second transistor (Q2) form a current mirror circuit (10), and the temperature of the amplifier circuit (30) is detected based on a temperature change of the first transistor (Q1) and the second transistor (Q2).
    Type: Application
    Filed: June 17, 2021
    Publication date: October 7, 2021
    Inventors: Nobukazu SUZUKI, Hideyo YAMASHIRO, Yasutaka SUGIMOTO, Takayuki KAWANO
  • Publication number: 20210284024
    Abstract: A traffic mover includes a mover body forming an accommodation space configured to accommodate a human. The mover body includes a light blocking member and a driving assistance unit. The light blocking member blocks light entering from a front side of the mover body in a moving direction of the mover body. The driving assistance unit enables the mover body to be driven when the light blocking member blocks a forward view of the human in the moving direction of the mover body.
    Type: Application
    Filed: May 27, 2021
    Publication date: September 16, 2021
    Inventors: Shuji IKEGAMI, Takayuki KAWANO
  • Publication number: 20210242842
    Abstract: A power amplifier circuit includes a first transistor disposed on a semiconductor substrate; a second transistor disposed on the semiconductor substrate and configured to supply a bias current based on a first current which is a part of a control current to the first transistor; a third transistor disposed on the semiconductor substrate and having a collector configured to be supplied with a second current which is a part of the control current and an emitter configured to output a third current based on the second current; a first bump electrically connected to an emitter of the first transistor and disposed so as to overlap a first disposition area in which the first transistor is disposed in plan view of the semiconductor substrate; and a second bump disposed so as to overlap a second disposition area in which the third transistor is disposed in the plan view.
    Type: Application
    Filed: February 5, 2021
    Publication date: August 5, 2021
    Inventors: Hiroaki TOKUYA, Hideyuki SATO, Fumio HARIMA, Kenichi SHIMAMOTO, Satoshi TANAKA, Takayuki KAWANO, Ryoki SHIKISHIMA, Atsushi KUROKAWA
  • Publication number: 20210218395
    Abstract: A bias circuit supplies bias voltage to a linear detector circuit. The bias circuit includes a transistor including a collector terminal, an emitter terminal, and a base terminal; a resistance element having one end connected to the collector terminal and the other end connected to a power line and the base terminal; a resistance element having one end connected to the emitter terminal; a transistor that switches between connection and disconnection between the resistance element and ground; collector voltage extended lines that transmit voltage corresponding to collector voltage as the bias voltage; and a transistor that is arranged on a path of one of the collector voltage extended lines and that switches between connection and disconnection between an output terminal of the linear detector circuit and the collector terminal.
    Type: Application
    Filed: March 25, 2021
    Publication date: July 15, 2021
    Inventors: Hideyo YAMASHIRO, Takayuki KAWANO
  • Patent number: 10793301
    Abstract: Provided is a film attachment apparatus and a film transport method by which it is easy to switch a film each time, and a film attachment apparatus including the film transport apparatus. The film transport apparatus includes: a film holding unit configured to hold a long-length film; and a film cutting unit configured to cut out the film, in which the film holding unit holds the plurality of films, and the film transport apparatus further includes: a temporary holding unit configured to include a plurality of temporary holding mechanisms that temporally hold the films between the film holding unit and the film cutting unit; and a first transport arm configured to select and pull out one film from the plurality of films which are held in the temporary holding unit.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: October 6, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takayuki Kawano
  • Publication number: 20200212849
    Abstract: A power amplifier circuit includes a power amplifier that amplifies the power of a high frequency signal, a power amplifier temperature detector circuit that includes a temperature detection element, the temperature detection element being thermally coupled with the power amplifier, a bias control signal generator circuit that generates a bias control signal for the power amplifier based on a temperature detection signal outputted from the power amplifier temperature detector circuit, and a regulator circuit that stabilizes the temperature detection signal. The power amplifier, the power amplifier temperature detector circuit, and the regulator circuit are formed in a first integrated circuit, and the bias control signal generator circuit is formed in a second integrated circuit. The substrate material (for example, GaAs) of the first integrated circuit has a higher cutoff frequency than the substrate material (for example, SOI) of the second integrated circuit.
    Type: Application
    Filed: December 23, 2019
    Publication date: July 2, 2020
    Inventors: Shunsuke KOBAYASHI, Takayuki KAWANO
  • Publication number: 20200164550
    Abstract: A manufacturing method for a composite member according to one aspect of the disclosure includes: a step of forming a substrate sheet by forming a coating layer on a first surface of a resin sheet and drying the substrate sheet by heat; a step of molding the substrate sheet by use of a first mold by heating the substrate sheet; and a step of forming a foaming resin layer on a second surface of the resin sheet by use of a second mold after the substrate sheet is molded, the second surface being an opposite side from the first surface of the resin sheet.
    Type: Application
    Filed: October 18, 2019
    Publication date: May 28, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takayuki KAWANO, Toshinori NAKAKURA, Tadashi HIDEHIRA, Masashi IWAKIRI, Makoto FUKUNISHI
  • Publication number: 20190270529
    Abstract: Provided is a film attachment apparatus and a film transport method by which it is easy to switch a film each time, and a film attachment apparatus including the film transport apparatus. The film transport apparatus includes: a film holding unit configured to hold a long-length film; and a film cutting unit configured to cut out the film, in which the film holding unit holds the plurality of films, and the film transport apparatus further includes: a temporary holding unit configured to include a plurality of temporary holding mechanisms that temporally hold the films between the film holding unit and the film cutting unit; and a first transport arm configured to select and pull out one film from the plurality of films which are held in the temporary holding unit.
    Type: Application
    Filed: February 6, 2019
    Publication date: September 5, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takayuki KAWANO
  • Patent number: 10024883
    Abstract: A block has a planar portion abutting a back side of a contact region of a flexible substrate, and a recess that is concave with respect to the planar portion. An electronic component mounted on the flexible substrate is located within the recess. When viewed from a direction perpendicular to the planar portion, the recess is located at a position near a power supply bump, except at a position overlapping the power supply bump, or the recess is filled with a filler. The planar portion of the block abuts only the back side of the power supply bump.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: July 17, 2018
    Assignees: Yokowo Co., Ltd., Murata Manufacturing Co., Ltd.
    Inventors: Takahiro Nagata, Takeshi Todoroki, Takahiro Nakamura, Yoshinori Ishikawa, Takayuki Kawano, Kazuhisa Honma
  • Patent number: 9956938
    Abstract: According to the present invention, a vehicular pop-up hood device includes a cylinder, a piston rod that can protrude from a front end of the cylinder, a gas generator to urge the piston rod, the gas generator provided at a side of a rear end of the cylinder, and a bracket to attach the cylinder to a vehicle body. The bracket includes a top portion engaged with the front end of the cylinder, and an overhanging portion for attachment to the vehicle body, the overhanging portion overhanging from the cylinder in a direction intersecting with an axial direction of the cylinder.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: May 1, 2018
    Assignee: TAKATA CORPORATION
    Inventors: Kazuhiro Abe, Atsushi Noguchi, Koji Inuzuka, Takayuki Kawano
  • Publication number: 20170203713
    Abstract: According to the present invention, a vehicular pop-up hood device includes a cylinder, a piston rod that can protrude from a front end of the cylinder, a gas generator to urge the piston rod, the gas generator provided at a side of a rear end of the cylinder, and a bracket to attach the cylinder to a vehicle body. The bracket includes a top portion engaged with the front end of the cylinder, and an overhanging portion for attachment to the vehicle body, the overhanging portion overhanging from the cylinder in a direction intersecting with an axial direction of the cylinder.
    Type: Application
    Filed: January 4, 2017
    Publication date: July 20, 2017
    Applicant: TAKATA CORPORATION
    Inventors: Kazuhiro ABE, Atsushi NOGUCHI, Koji INUZUKA, Takayuki KAWANO
  • Publication number: 20160282386
    Abstract: A block has a planar portion abutting a back side of a contact region of a flexible substrate, and a recess that is concave with respect to the planar portion. An electronic component mounted on the flexible substrate is located within the recess. When viewed from a direction perpendicular to the planar portion, the recess is located at a position near a power supply bump, except at a position overlapping the power supply bump, or the recess is filled with a filler. The planar portion of the block abuts only the back side of the power supply bump.
    Type: Application
    Filed: March 23, 2016
    Publication date: September 29, 2016
    Inventors: Takahiro Nagata, Takeshi Todoroki, Takahiro Nakamura, Yoshinori Ishikawa, Takayuki Kawano, Kazuhisa Honma
  • Patent number: 9319281
    Abstract: Requested processing time of each batch job is complied with. A resource-correction control server calculating an amount of a resource required for setup of a batch application includes an intermediate-process-unit-data acquiring unit that compiles data of completed batch processes as a single data set at a predetermined time point, a resource-correction determining unit that, using the intermediate process unit, determines a process progress rate that is a progress rate of a process at the current time point and whether the process progress rate has reached a required progress rate that is a progress rate required to terminate the batch process within the requested processing time, and an allocation-resource calculating unit that, as a result of the determination, if the required progress rate has not been reached, calculates the amount of the resource required for recovery of the delay based on a delay-recovery-object progress rate and resource information.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: April 19, 2016
    Assignee: HITACHI, LTD.
    Inventors: Masaki Yotsutani, Ryo Kawai, Takayuki Kawano, Jun Yoshida
  • Patent number: 9244737
    Abstract: A parallel distributed processing system includes multiple parallel distributed processing execution servers which stores data blocks pre-divided in a storage device and executes tasks processing the data blocks in parallel, and a management computer controlling the multiple parallel distributed processing execution servers.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: January 26, 2016
    Assignee: HITACHI, LTD.
    Inventors: Takayuki Kawano, Jun Yoshida, Masaki Yotsutani
  • Patent number: D756054
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: May 10, 2016
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kenichiro Hirai, Takayuki Kawano, Tomoyuki Kanomata, Kenshun Ishii, Yuta Fukuda