Patents by Inventor Hideki Tsuji

Hideki Tsuji 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: 20210363323
    Abstract: Disclosed is an additive for imparting antimicrobial properties to a resin. The additive comprises a string polymer, at least one terminal of which has a positive charge, wherein the string polymer is a polymer containing structural units derived from a cationic polymerization initiator and a monomer containing a carbon-carbon double bond. By using this additive, it becomes possible to obtain an antibacterial resin molded body which can be prepared simply and inexpensively and which has high stability and safety.
    Type: Application
    Filed: April 25, 2019
    Publication date: November 25, 2021
    Applicant: KIRIN HOLDINGS KABUSHIKI KAISHA
    Inventors: Toshikazu TSUJI, Hideki KOIZUMI, Akiko JITSUHIRO, Yuki KONOEDA, Atsushi HOTTA, Tomoki MAEDA
  • Publication number: 20210283758
    Abstract: A power tool includes a motor, a housing, a battery holder and a cushion. The battery holder is held by the housing to be movable at least in a first direction relative to the housing. The battery holder is configured to removably receive a battery for supplying electric power to the motor. The cushion is held by the housing such that the first direction intersects the cushion. When the battery is attached to the battery holder, the cushion is directly or indirectly disposed between the battery and the housing.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 16, 2021
    Applicant: MAKITA CORPORATION
    Inventors: Masanori FURUSAWA, Hajime TAKEUCHI, Hideki TSUJI, Yoshiro TADA
  • Publication number: 20210270228
    Abstract: A wave power generation system includes: a hydraulic pump device configured to operate by force of a wave to discharge an operating liquid to a main passage; a hydraulic motor device configured to be rotated by the operating liquid flowing through the main passage; a power generator configured to be driven by the hydraulic motor to generate electric power; and a heat exchanger device configured to perform heat exchange of the operating liquid. The heat exchanger device includes a heat exchange motor device connected to the main passage through a sub passage and configured to be operated by the operating liquid introduced through the sub passage, a refrigerant pump device driven by the heat exchange motor device and configured to suck and discharge a refrigerant liquid, and a heat exchanger to which the refrigerant liquid discharged from the heat exchange pump device and the operating liquid are introduced.
    Type: Application
    Filed: February 6, 2019
    Publication date: September 2, 2021
    Applicants: THE UNIVERSITY OF TOKYO, KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Koki MARUYAMA, Chang-Kyu RHEEM, Hidetaka KOBAYASHI, Naoki KURIBAYASHI, Hideki TANAKA, Masahide TSUJI
  • Publication number: 20210129307
    Abstract: A reciprocating tool includes a motor, a driving mechanism, a body housing, a movable part, and a vibration control mechanism. The driving mechanism includes a reciprocating member configured to reciprocate in a first direction. The movable part is connected to the body housing via a first elastic member and a second elastic member to be relatively movable in the first direction. The vibration control mechanism includes at least one weight configured to move in a direction opposite to the reciprocating member. The center of gravity of the at least one weight is offset from the driving axis in a second direction. In the second direction, the first elastic member is closer to the center of gravity than the second elastic member. A load of the first elastic member when the movable part is placed in a closer position is smaller than a load of the second elastic member.
    Type: Application
    Filed: October 20, 2020
    Publication date: May 6, 2021
    Applicant: MAKITA CORPORATION
    Inventors: Hideki TSUJI, Hajime TAKEUCHI, Kei WATANABE, Kazuo MURAMATSU, Masahiro MAEGAWA
  • Patent number: 10857644
    Abstract: A dust collector includes body, a dust-storing part, a sliding part, a dust-transfer passage, and a biasing member. The sliding part is held by the body to be slidable in a specified axial direction and has a suction port. The dust-transfer passage connects the suction port and the dust-storing part. The biasing member biases the sliding part in a first direction of the axial direction. The sliding part is configured to be normally held in an initial position in which the sliding part protrudes from the body by a specified length in the first direction, and to be moved in a second direction opposite to the first direction against the biasing force when pressed in the second direction. The dust collector includes a cushioning member configured to be interposed between the body and the sliding part in the axial direction when the sliding part is placed in the initial position.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: December 8, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Masanori Furusawa, Hideki Tsuji
  • Patent number: 10799996
    Abstract: A dust collector includes a main body, a sliding part, and a communication passage. The main body includes an internal region disposed between a power tool and a dust storing region. The sliding part is held by the main body so as to be slidable in a first direction while partly protruding out of the main body through an opening and partly disposed in the internal region. The communication passage extends in a second direction crossing the first direction within the internal region. When the sliding part is placed at a closest position, a distance in the first direction between the opening and an innermost end of the sliding part is longer than a distance between the opening and the communication passage. The sliding part includes an interference avoiding part configured to avoid interference with the communication passage when the sliding part is placed at the closest position.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: October 13, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Masanori Furusawa, Hideki Tsuji
  • Publication number: 20200306904
    Abstract: A dust collecting system includes a power tool and a dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The dust collector is configured to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a first control device configured to control a rotation speed of the second motor according to a driving state of the power tool.
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Applicant: MAKITA CORPORATION
    Inventors: Hitoshi IIDA, Yoshiro TADA, Hideki TSUJI, Taro HISANO
  • Publication number: 20200305665
    Abstract: The filter can receive timely maintenance. A dust collection system includes a hammer drill, a dust collection attachment connected to the hammer drill and including a dust collection motor that generates a suction force and a filter that catches sucked dust, and a dust collection controller that monitors a state of the dust collection attachment to determine a time to perform maintenance.
    Type: Application
    Filed: February 13, 2020
    Publication date: October 1, 2020
    Applicant: MAKITA CORPORATION
    Inventors: Kiyonobu YOSHIKANE, Hideki TSUJI
  • Publication number: 20200306907
    Abstract: A dust collecting system includes a power tool and a stationary dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The stationary dust collector is configured to be placed separately from the power tool and to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a control device configured to control a rotation speed of the second motor according to a driving state of the power tool.
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Applicant: MAKITA CORPORATION
    Inventors: Hitoshi IIDA, Yoshiro TADA, Hideki TSUJI, Taro HISANO
  • Patent number: 10724206
    Abstract: A wheel loader includes a vehicular body, a work implement, a front wheel, and a control unit. The work implement is disposed in front of the vehicular body. The work implement has a boom. The front wheel has a tire made of an elastic material. The control unit starts to raise the boom while the tire compressed in a vertical direction rebounds and vertically stretches.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: July 28, 2020
    Assignee: KOMATSU LTD.
    Inventor: Hideki Tsuji
  • Patent number: 10704228
    Abstract: A control system for a work vehicle includes a position determination unit which determines a position of loading on a loaded vehicle based on a state of loading on the loaded vehicle, a display, and a representation control unit which has the display show loading guidance corresponding to the position of loading determined by the position determination unit for a laterally viewed loaded vehicle.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: July 7, 2020
    Assignee: KOMATSU LTD.
    Inventor: Hideki Tsuji
  • Patent number: 10597852
    Abstract: The wheel loader includes a boom, a bucket, a travel device, a travel distance measuring unit, a state determining unit, and an accumulating unit. The bucket is attached to the tip end of the boom. The travel distance measuring unit measures a travel distance. The state determining unit determines the loaded state of the bucket. The accumulating unit automatically accumulates transport operation information about the load of the bucket when a predetermined distance or more is traveled under the loaded state.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: March 24, 2020
    Assignee: KOMATSU LTD.
    Inventors: Takashi Hori, Satoru Utsumi, Hideki Tsuji
  • Patent number: 10557249
    Abstract: A wheel loader includes a work implement, an obtaining unit, and a control unit. The work implement includes a bucket. The obtaining unit obtains soil property information on a soil property of an excavation object. The control unit controls an operation to excavate the excavation object with the bucket of the work implement based on the soil property information obtained by the obtaining unit.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: February 11, 2020
    Assignee: KOMATSU LTD.
    Inventor: Hideki Tsuji
  • Patent number: 10435868
    Abstract: A control system for a work vehicle includes a display and a control unit which has the display show a perspective image in which at least a part of a work implement of a wheel loader or a vessel of a loaded vehicle is seen through.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: October 8, 2019
    Assignee: KOMATSU LTD.
    Inventors: Hideki Tsuji, Kaoru Yasuda, Norifumi Nishizaka
  • Publication number: 20190193224
    Abstract: A dust collector includes body, a dust-storing part, a sliding part, a dust-transfer passage, and a biasing member. The sliding part is held by the body to be slidable in a specified axial direction and has a suction port. The dust-transfer passage connects the suction port and the dust-storing part. The biasing member biases the sliding part in a first direction of the axial direction. The sliding part is configured to be normally held in an initial position in which the sliding part protrudes from the body by a specified length in the first direction, and to be moved in a second direction opposite to the first direction against the biasing force when pressed in the second direction. The dust collector includes a cushioning member configured to be interposed between the body and the sliding part in the axial direction when the sliding part is placed in the initial position.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 27, 2019
    Applicant: MAKITA CORPORATION
    Inventors: Masanori FURUSAWA, Hideki TSUJI
  • Publication number: 20180171594
    Abstract: A control system for a work vehicle includes a display and a control unit which has the display show a perspective image in which at least a part of a work implement of a wheel loader or a vessel of a loaded vehicle is seen through.
    Type: Application
    Filed: August 12, 2016
    Publication date: June 21, 2018
    Applicant: KOMATSU LTD.
    Inventors: Hideki TSUJI, Kaoru YASUDA, Norifumi NISHIZAKA
  • Publication number: 20180142442
    Abstract: A wheel loader includes a vehicular body, a work implement, a front wheel, and a control unit. The work implement is disposed in front of the vehicular body. The work implement has a boom. The front wheel has a tire made of an elastic material. The control unit starts to raise the boom while the tire compressed in a vertical direction rebounds and vertically stretches.
    Type: Application
    Filed: July 11, 2016
    Publication date: May 24, 2018
    Applicant: KOMATSU LTD.
    Inventor: Hideki TSUJI
  • Publication number: 20180135277
    Abstract: A control system for a work vehicle includes a position determination unit which determines a position of loading on a loaded vehicle based on a state of loading on the loaded vehicle, a display, and a representation control unit which has the display show loading guidance corresponding to the position of loading determined by the position determination unit for a laterally viewed loaded vehicle.
    Type: Application
    Filed: July 19, 2016
    Publication date: May 17, 2018
    Applicant: KOMATSU LTD.
    Inventor: Hideki TSUJI
  • Publication number: 20180135273
    Abstract: A wheel loader includes a work implement, an obtaining unit, and a control unit. The work implement includes a bucket. The obtaining unit obtains soil property information on a soil property of an excavation object. The control unit controls an operation to excavate the excavation object with the bucket of the work implement based on the soil property information obtained by the obtaining unit.
    Type: Application
    Filed: July 19, 2016
    Publication date: May 17, 2018
    Applicant: KOMATSU LTD.
    Inventor: Hideki TSUJI
  • Patent number: 9943940
    Abstract: A power tool includes a drilling tool and a dust collector configured to be removably attached to the drilling tool. The dust collector includes a dust collector body, a passage part provided in the dust collector body and having elasticity, and a storing part configured to be removably attached to the dust collector body and to store dust. The passage part includes a drilling tool mounting port part configured to be connected to the drilling tool while pressing a specified region of the drilling tool, and a storing part mounting port part configured to be connected to the storing part while pressing a specified region of the storing part. Air containing the dust is led through the dust collector body to the storing part, and the air from which the dust has been separated in the storing part is led through the passage part into the drilling tool.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: April 17, 2018
    Assignee: MAKITA CORPORATION
    Inventors: Masanori Furusawa, Hideki Tsuji