Patents by Inventor Hiroki Kitagawa

Hiroki Kitagawa 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: 20200136296
    Abstract: A connector applied to a wire harness includes: a housing main body including a housing space part for housing a terminal along an axial direction, and an insertion port provided at one side of the housing space part in the axial direction and into which a counterpart terminal connected to the terminal is inserted; a lance that faces the housing space part, that is elastically deformably supported by the housing main body in a cantilever manner, that extends toward the insertion port side along the axial direction, and that engages the terminal housed in the housing space part; and a regulating contact part that comes into contact with the lance and that regulates excessive displacement of the lance toward the housing space part side.
    Type: Application
    Filed: October 27, 2019
    Publication date: April 30, 2020
    Inventors: Yasuhiro Tanaka, Hiroki Kitagawa, Masanobu Higashitani, Kengo Machida, Maho Shinohara, Masatoshi Yamada, Toshiaki Nozawa, Noboru Hayasaka, Takeaki Kaneko
  • Publication number: 20200091645
    Abstract: A connection terminal includes a female connection body having a housing space, a male connection body inserted into the housing space to a fitting completion position, and an elastic member supported by an inner wall surface of the female connection body surrounding the housing space, having contact point portions contacting an outer wall surface of the male connection body, and pressing the male connection body by the contact point portions. The female connection body has far-side protruding portions and inlet-side protruding portions. The outer wall surface of the male connection body has at least one of first recessed portions formed at portions facing the inlet-side protruding portions when the male connection body is inserted into the housing space and a second recessed portion formed at a portion facing the contact point portion when the male connection body is inserted into the housing space.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 19, 2020
    Inventors: Yasuhiro Tanaka, Hiroki Kitagawa, Kengo Machida
  • Patent number: 10569402
    Abstract: The disclosure discloses a driving machine includes a trigger, a first switch turned on or off by an operation of the trigger, a push lever that moves in response to an operation of pressing an ejection port of a fastener against a driven material, and a second switch turned on or off by movement of the push lever. The driving machine drives the fastener when the first switch and the second switch are both in the ON state. The trigger includes a switching mechanism to switch between a single-shot driving mode and a continuous-shot driving mode.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: February 25, 2020
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Yoshimitsu Iijima, Hiroki Kitagawa
  • Publication number: 20190307030
    Abstract: A connection structure of a shield terminal (30) is electrically connected and fixed to an opening end part of a tubular braided wire (20) covering a covered wire (10) along the long direction. The shield terminal (30) has: a tubular caulked part (33) for which the part folded back outwardly at the opening end part of the braided wire (20) is fixed by caulking to the outer peripheral surface by a caulking sleeve (40); and a pressure energizing part (35) provided near the caulked part (33) and pressed and energized so that the braided wire (20) does not move in relation to the covered wire (10).
    Type: Application
    Filed: March 15, 2017
    Publication date: October 3, 2019
    Inventors: Hiroki Kitagawa, Yuya Yamada, Kenta Yasuda, Ryuta Fujii
  • Publication number: 20190135248
    Abstract: In this brake control device for a motorcycle, a deceleration threshold value calculation unit limits target wheel deceleration to a threshold value or less on the basis of a bank angle estimated by a bank angle calculation unit. Thus, the behavior of the vehicle body during turning of the motorcycle can be made more stable so as not to cause discomfort to a driver.
    Type: Application
    Filed: March 31, 2016
    Publication date: May 9, 2019
    Inventors: Chikashi IIZUKA, Makoto TODA, Hiroki KITAGAWA, Tetsuya HASEGAWA, Nobuyuki KODAIRA
  • Patent number: 10069291
    Abstract: A terminal fitting includes a cylindrical portion having a first crimping region and a second crimping region. A crimped state of a braided body extending through the terminal fitting is formed between the terminal fitting and a cable at the first crimping region such that relative movements of the terminal fitting and the braided body are prevented, and an end of the braided body is then folded back and positioned to face an outer surface of the cylindrical portion in a radial direction. The crimped state of the braided body is then formed between a sleeve and the terminal fitting at the second crimping region, so that the terminal fitting is fixed to the braided body.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: September 4, 2018
    Assignee: YAZAKI CORPORATION
    Inventors: Hiroki Kitagawa, Yuya Yamada, Ryuta Fujii
  • Patent number: 10008784
    Abstract: A spacer has a first cylindrical portion where a primary crimped state of a braided member is formed between the spacer and a cable. After the primary crimped state is formed, in a state in which a second flange of the terminal fitting fitted around the cable and the braided member is in contact with a first flange, a sleeve fitted around a second cylindrical portion forms a crimped state of the braided member between the sleeve and the terminal fitting at the second cylindrical portion, so that the terminal fitting is fixed to the braided member.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: June 26, 2018
    Assignee: YAZAKI CORPORATION
    Inventors: Hiroki Kitagawa, Yuya Yamada, Ryuta Fujii
  • Publication number: 20180083372
    Abstract: A spacer has a first cylindrical portion where a primary crimped state of a braided member is formed between the spacer and a cable. After the primary crimped state is formed, in a state in which a second flange of the terminal fitting fitted around the cable and the braided member is in contact with a first flange, a sleeve fitted around a second cylindrical portion forms a crimped state of the braided member between the sleeve and the terminal fitting at the second cylindrical portion, so that the terminal fitting is fixed to the braided member.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 22, 2018
    Inventors: Hiroki Kitagawa, Yuya Yamada, Ryuta Fujii
  • Publication number: 20180083433
    Abstract: A terminal fitting includes a cylindrical portion having a first crimping region and a second crimping region. A crimped state of a braided body extending through the terminal fitting is formed between the terminal fitting and a cable at the first crimping region such that relative movements of the terminal fitting and the braided body are prevented, and an end of the braided body is then folded back and positioned to face an outer surface of the cylindrical portion in a radial direction. The crimped state of the braided body is then formed between a sleeve and the terminal fitting at the second crimping region, so that the terminal fitting is fixed to the braided body.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 22, 2018
    Inventors: Hiroki Kitagawa, Yuya Yamada, Ryuta Fujii
  • Publication number: 20170209995
    Abstract: The disclosure discloses a driving machine includes a trigger, a first switch turned on or off by an operation of the trigger, a push lever that moves in response to an operation of pressing an ejection port of a fastener against a driven material, and a second switch turned on or off by movement of the push lever. The driving machine drives the fastener when the first switch and the second switch are both in the ON state. The trigger includes a switching mechanism to switch between a single-shot driving mode and a continuous-shot driving mode.
    Type: Application
    Filed: January 24, 2017
    Publication date: July 27, 2017
    Applicant: HITACHI KOKI CO., LTD.
    Inventors: Yoshimitsu IIJIMA, Hiroki KITAGAWA
  • Patent number: 9561785
    Abstract: A vehicle rear wheel lift tendency judgment device: includes a first deceleration obtaining device for obtaining a first deceleration along a first straight line, being a component in a first direction of an acceleration on a center of gravity, and a second deceleration obtaining device for obtaining a second deceleration along a second straight line, being a component in a second direction of the acceleration; judges that a rear wheel tends to be lifted, when the first deceleration is greater in the first direction than a first threshold, or when the second deceleration is greater in the second direction than a second threshold; and performs at least one of setting for shifting the first threshold in a direction opposite to the first direction and setting for shifting the second threshold in a direction opposite to the second direction, when a second-deceleration change rate being a change amount in the second deceleration per unit time becomes greater in the second direction than a change-rate threshold, en
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: February 7, 2017
    Assignees: HONDA MOTOR CO., LTD., NISSIN KOGYO CO., LTD.
    Inventors: Chikashi Iizuka, Makoto Toda, Hiroki Kitagawa, Tetsuya Hasegawa, Nobuyuki Kodaira, Tomoharu Tsuchiya
  • Patent number: 9518587
    Abstract: An air compressor comprising: a tank (50), a compression mechanism (30), a motor (5) and a control circuit (7). The control circuit (7) includes a CPU (70) and a storing unit (74) which stores a control program, the compressor operation history and a plurality of operation modes. Each of the operation modes is defined by two setting values: a reference restart pressure value and a motor rotational speed value, at least one of these values being different from among the plurality of modes. The control circuit (7) executes one of the plurality of modes as a target mode in which the control unit controls the motor to restart by comparing the pressure in the tank with the reference restart pressure and rotates the motor at the rotational speed of the target mode. The control circuit changes the target mode from the one of the plurality of modes to another one of the plurality of modes based on the compressor operation history.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: December 13, 2016
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Tomoyoshi Yokota, Seiichi Kodato, Hiroki Kitagawa, Kenichi Matsunaga, Masahiro Miura, Yoshimi Takahashi
  • Patent number: 9435329
    Abstract: An air compressor includes a compression unit, a drive unit, a tank unit, and a control circuit unit. The compression unit is configured to generate a compressed air and provided with a handle positioned above a center of gravity of the air compressor. The drive unit is configured to drive the compression unit. The tank unit is disposed below the compression unit and includes a plurality of air tanks configured to reserve the compressed air. The compressed air reserved in the tank unit has a pressure value. The control circuit unit is configured to detect the pressure value of the compressed air reserved in the tank unit and to control the drive unit to drive the compression unit.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: September 6, 2016
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hiroki Kitagawa, Tomoyoshi Yokota, Kenichi Matsunaga, Masahiro Miura, Shingo Kosugi
  • Patent number: 9221162
    Abstract: The nailing machine (1) comprises an air passage (510) allowing communication between a cylinder (200) and a return air chamber (500) in which compressed air for returning a piston (300) to the initial position is accumulated. The air passage (510) is provided with a control valve (520) controlling entry of compressed air into the return air chamber (500) from the cylinder (200). The control valve (520) opens the air passage (510) and allows entry of compressed air into the return air chamber (500) in the case wherein the nailed object produces a small reaction force upon driving the nail, namely when the upward moving distance of the body (100) relative to the push lever (700) is smaller than a predetermined distance. The compressed air that has entered the return air chamber (500) further enters a below-the-piston chamber and serves as air damper, reducing the driving force.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: December 29, 2015
    Assignee: HITACHI KOKI CO., LTD.
    Inventors: Hiroki Kitagawa, Masashi Nishida, Tetsuhito Shige, Kousuke Akutsu, Masaya Nagao, Shouichi Hirai
  • Patent number: 9181050
    Abstract: A sheet feeding apparatus comprises a conveying path formed between an upper and a lower units facing each other; a feed roller which feeds a sheet by a portion partially exposed from an upper surface of the lower unit to the conveying path; a separation member disposed to oppose the feed roller; a stopper which stops entrance of the sheet into the conveying path by abutting against a sheet end in a closed state in which the stopper is moved in a direction to intersect with an exposed surface of the feed roller; a driving unit which drives at least the feed roller and the stopper; and a control unit which controls the driving unit to rotate the feed roller through a predetermined angle in a sheet feeding direction and to then open the stopper when feeding of the sheet is started from the closed state of the stopper.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: November 10, 2015
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Takashi Machida, Hiroshi Komuro, Hiroki Kitagawa
  • Publication number: 20150232074
    Abstract: A vehicle rear wheel lift tendency judgment device: includes a first deceleration obtaining device for obtaining a first deceleration along a first straight line, being a component in a first direction of an acceleration on a center of gravity, and a second deceleration obtaining device for obtaining a second deceleration along a second straight line, being a component in a second direction of the acceleration; judges that a rear wheel tends to be lifted, when the first deceleration is greater in the first direction than a first threshold, or when the second deceleration is greater in the second direction than a second threshold; and performs at least one of setting for shifting the first threshold in a direction opposite to the first direction and setting for shifting the second threshold in a direction opposite to the second direction, when a second-deceleration change rate being a change amount in the second deceleration per unit time becomes greater in the second direction than a change-rate threshold, en
    Type: Application
    Filed: February 18, 2015
    Publication date: August 20, 2015
    Applicants: HONDA MOTOR CO., LTD., NISSIN KOGYO CO., LTD.
    Inventors: Chikashi Iizuka, Makoto Toda, Hiroki Kitagawa, Tetsuya Hasegawa, Nobuyuki Kodaira, Tomoharu Tsuchiya
  • Patent number: 8974191
    Abstract: An air compressor includes a motor, an air compression mechanism driven by the motor, a rotation shaft rotatable integrally with a rotor of the motor, a fan rotatable integrally with the rotation shaft, a plurality of air tanks for reserving compressed air generated by the air compression mechanism, and a control unit for controlling the motor. The plurality of air tanks are juxtaposed with each other and arrayed in an array direction. The plurality of air tanks includes an endmost air tank and an adjacent air tank adjacent to the endmost air tank. The control unit is disposed adjacent to and opposite to the adjacent air tank relative to the endmost air tank. The control unit is disposed adjacent to and in confrontation with an outer circumference of the fan.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: March 10, 2015
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Masahiro Miura, Seiichi Kodato, Hiroki Kitagawa, Tomoyoshi Yokota, Kenichi Matsunaga, Yoshimi Takahashi
  • Publication number: 20140186193
    Abstract: An air compressor comprising: a tank (50), a compression mechanism (30), a motor (5) and a control circuit (7). The control circuit (7) includes a CPU (70) and a storing unit (74) which stores a control program, the compressor operation history and a plurality of operation modes. Each of the operation modes is defined by two setting values: a reference restart pressure value and a motor rotational speed value, at least one of these values being different from among the plurality of modes. The control circuit (7) executes one of the plurality of modes as a target mode in which the control unit controls the motor to restart by comparing the pressure in the tank with the reference restart pressure and rotates the motor at the rotational speed of the target mode. The control circuit changes the target mode from the one of the plurality of modes to another one of the plurality of modes based on the compressor operation history.
    Type: Application
    Filed: August 28, 2012
    Publication date: July 3, 2014
    Applicant: Hitachi Koki Co., Ltd.
    Inventors: Tomoyoshi Yokota, Seiichi Kodato, Hiroki Kitagawa, Kenichi Matsunaga, Masahiro Miura, Yoshimi Takahashi
  • Patent number: 8479963
    Abstract: The nailing machine (1) comprises an air passage (510) allowing communication between a cylinder (200) and a return air chamber (500) in which compressed air for returning a piston (300) to the initial position is accumulated. The air passage (510) is provided with a control valve (520) controlling entry of compressed air into the return air chamber (500) from the cylinder (200). The control valve (520) opens the air passage 510 and allows entry of compressed air into the return air chamber (500) in the case wherein the nailed object produces a small reaction force upon driving the nail, namely when the upward moving distance of the body (100) relative to the push lever (700) is smaller than a predetermined distance. The compressed air that has entered the return air chamber (500) further enters a below-the-piston chamber and serves as air damper, reducing excess energy absorbed by a piston bumper (360).
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: July 9, 2013
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hiroki Kitagawa, Masashi Nishida, Tetsuhito Shige, Kousuke Akutsu, Masaya Nagao, Shouichi Hirai
  • Patent number: D689866
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: September 17, 2013
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Tetsuyuki Anzai, Hiroki Kitagawa, Hiroshi Komuro, Takashi Machida, Mikio Shinohara, Satoshi Fujiwara