Patents by Inventor Tomohiro Ukai

Tomohiro Ukai 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: 20240048027
    Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis in a lateral direction by rotation transmission from the rotation shaft, and the crank mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.
    Type: Application
    Filed: October 17, 2023
    Publication date: February 8, 2024
    Applicant: MAKITA CORPORATION
    Inventors: Ryosuke HARA, Tomohiro UKAI
  • Patent number: 11872646
    Abstract: A reciprocating tool includes a housing, a first tubular member, a slider, a second tubular member and a lock member. The first tubular member is pivotable around a first axis and has a single first protrusion protruding radially inward. The second tubular member is disposed in the first tubular member, is coupled to a first end portion of the slider to be pivotable around a second axis, and has a single second protrusion protruding radially outward. The second tubular member has a protruding portion configured to allow the lock member to move from a lock position to an unlock position. The single first protrusion is configured to engage with the single second protrusion and cause the second tubular member to pivot when the first tubular member pivots. The single second protrusion is provided on a portion of the second tubular member other than the protruding portion.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: January 16, 2024
    Assignee: MAKITA CORPORATION
    Inventors: Yuta Yamashita, Tomohiro Ukai
  • Patent number: 11839925
    Abstract: A reciprocating cutting tool reduces deteriorating movement of an operating drum due to entry of chips between the operating drum and a housing. A reciprocating cutting tool includes a motor, a slider being rod-like and extending in a front-rear direction, a reciprocation converter that converts rotation of the motor to reciprocation in the front-rear direction and transmits the reciprocation to the slider, a power transmission housing accommodating the reciprocation converter, a tip tool holder at a front end of the slider to detachably receive a tip tool, and an operating drum operable to attach or detach the tip tool with the tip tool holder through rotation. The operating drum is rotatably held on the power transmission housing with one or more ring members.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: December 12, 2023
    Assignee: MAKITA CORPORATION
    Inventors: Tomohiro Ukai, Yuki Miwa
  • Patent number: 11831224
    Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis in a lateral direction by rotation transmission from the rotation shaft, and the crank mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: November 28, 2023
    Assignee: MAKITA CORPORATION
    Inventors: Ryosuke Hara, Tomohiro Ukai
  • Publication number: 20230268672
    Abstract: A first antenna and a second antenna provided on a front surface of the resin plate. A first cable connects the first antenna and a communication board. The first cable is mounted on a first mounting bracket. A second cable connects the second antenna and a communication board. The second cable is mounted on a second mounting bracket. The first mounting bracket is provided on at least one of the front surface of the resin plate and the first ground plate of the first antenna. The second mounting bracket is provided on at least one of the front surface of the resin plate and the second ground plate of the second antenna.
    Type: Application
    Filed: January 24, 2023
    Publication date: August 24, 2023
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi ICHIHARA, Yutaka FURUKAWA, Tomohiro UKAI
  • Publication number: 20230125106
    Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis in a lateral direction by rotation transmission from the rotation shaft, and the crank mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.
    Type: Application
    Filed: December 27, 2022
    Publication date: April 27, 2023
    Applicant: MAKITA CORPORATION
    Inventors: Ryosuke HARA, Tomohiro UKAI
  • Patent number: 11581783
    Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis in a lateral direction by rotation transmission from the rotation shaft, and the crank mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: February 14, 2023
    Assignee: MAKITA CORPORATION
    Inventors: Ryosuke Hara, Tomohiro Ukai
  • Publication number: 20230027158
    Abstract: A reciprocating cutting tool reduces deteriorating movement of an operating drum due to entry of chips between the operating drum and a housing. A reciprocating cutting tool includes a motor, a slider being rod-like and extending in a front-rear direction, a reciprocation converter that converts rotation of the motor to reciprocation in the front-rear direction and transmits the reciprocation to the slider, a power transmission housing accommodating the reciprocation converter, a tip tool holder at a front end of the slider to detachably receive a tip tool, and an operating drum operable to attach or detach the tip tool with the tip tool holder through rotation. The operating drum is rotatably held on the power transmission housing with one or more ring members.
    Type: Application
    Filed: July 1, 2022
    Publication date: January 26, 2023
    Applicant: MAKITA CORPORATION
    Inventors: Tomohiro UKAI, Yuki MIWA
  • Patent number: 11554430
    Abstract: A reciprocating tool includes a housing, a support body, a slider, a motor, a driving mechanism, a first biasing member, a manipulation member and a first change mechanism. The housing has a first axis that defines a front-rear direction of the reciprocating tool. The support body is supported within the housing. The slider is supported by the support body to be linearly movable. The driving mechanism is operably coupled to the slider and configured to reciprocally move the slider relative to the support body using power of the motor. The first change mechanism is operably coupled to the manipulation member and configured to selectively enable and disable the first biasing member to bias the slider in response to manipulation of the manipulation member. When biasing of the slider by the first biasing member is enabled by the first change mechanism, the first biasing member biases the slider downward.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: January 17, 2023
    Assignee: MAKITA CORPORATION
    Inventors: Tomohiro Ukai, Yuta Yamashita
  • Publication number: 20220305575
    Abstract: A reciprocating cutting tool reduces dispersion of dust. The reciprocating cutting tool includes a reciprocation converter drivable by a motor, a rod-like slider connected to the reciprocation converter to be reciprocable, a blade holder at the front end of the slider to hold a blade, a power transmission housing housing the reciprocation converter and allowing the slider to protrude from its front end, a cover outward from the power transmission housing, and a fan rotatable together with a rotor in the motor. A first passage of cooling air from the fan is defined between the power transmission housing and the cover. The first passage branches into a second passage toward the blade holder and a third passage not toward the blade holder.
    Type: Application
    Filed: February 23, 2022
    Publication date: September 29, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Tomohiro UKAI, Shoichi ISHIKAWA
  • Publication number: 20220305577
    Abstract: A reciprocating cutting tool switches stably between the on and off states of orbital action or between the degrees of orbital action. The reciprocating cutting tool includes a rod-like slider reciprocable in a front-rear direction, a blade holder at the front end of the slider, an orbital unit that causes the blade holder to perform orbital action vertically in response to reciprocation of the slider, and an orbital switcher that switches between orbital modes operable by the orbital unit. The orbital switcher includes a lever body extending laterally. The lever body includes a first flat surface to support the slider indirectly. The first support flat surface includes a first portion frontward from a lateral central axis of the lever body and a second portion rearward from the central axis.
    Type: Application
    Filed: February 24, 2022
    Publication date: September 29, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Yuta YAMASHITA, Tomohiro UKAI
  • Patent number: 11396055
    Abstract: A reciprocating tool easily supplies a lubricant, such as grease (lubricating oil), to a mechanism for reciprocating a slider, and prevents a lack of lubricant. A reciprocating saw as a reciprocating tool includes a motor, a reciprocating conversion mechanism that converts rotation of the motor to reciprocation, a slider connected to the reciprocating conversion mechanism and being reciprocable, and a slider guide that supports the slider in a reciprocable manner and includes a lubricant-passage member in contact with the slider to allow passage of at least part of a lubricant through the lubricant-passage member, and a lubricant reservoir located adjacent to the lubricant-passage member to store the lubricant.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: July 26, 2022
    Assignee: MAKITA CORPORATION
    Inventors: Yosuke Naoi, Akihito Hara, Yasushi Ogura, Wei Yang, Pengfei Yang, Hao Wei Mei, Tomohiro Ukai
  • Publication number: 20220168830
    Abstract: A reciprocating tool includes a housing, a first tubular member, a slider, a second tubular member and a lock member. The first tubular member is pivotable around a first axis and has a single first protrusion protruding radially inward. The second tubular member is disposed in the first tubular member, is coupled to a first end portion of the slider to be pivotable around a second axis, and has a single second protrusion protruding radially outward. The second tubular member has a protruding portion configured to allow the lock member to move from a lock position to an unlock position. The single first protrusion is configured to engage with the single second protrusion and cause the second tubular member to pivot when the first tubular member pivots. The single second protrusion is provided on a portion of the second tubular member other than the protruding portion.
    Type: Application
    Filed: October 20, 2021
    Publication date: June 2, 2022
    Inventors: Yuta YAMASHITA, Tomohiro UKAI
  • Publication number: 20220134452
    Abstract: A reciprocating tool includes a housing, a support body, a slider, a motor, a driving mechanism, a first biasing member, a manipulation member and a first change mechanism. The housing has a first axis that defines a front-rear direction of the reciprocating tool. The support body is supported within the housing. The slider is supported by the support body to be linearly movable. The driving mechanism is operably coupled to the slider and configured to reciprocally move the slider relative to the support body using power of the motor. The first change mechanism is operably coupled to the manipulation member and configured to selectively enable and disable the first biasing member to bias the slider in response to manipulation of the manipulation member. When biasing of the slider by the first biasing member is enabled by the first change mechanism, the first biasing member biases the slider downward.
    Type: Application
    Filed: October 5, 2021
    Publication date: May 5, 2022
    Applicant: MAKITA CORPORATION
    Inventors: Tomohiro UKAI, Yuta YAMASHITA
  • Publication number: 20210280149
    Abstract: A content acquisition interface acquires a content. An information acquisition interface acquires traveling condition information on a vehicle. A control interface causes a display interface to display the content when the traveling condition information acquired by the information acquisition interface indicates an automatic driving level equal to or higher than a threshold value or causes the display interface to display information on traveling-based restriction when the traveling condition information acquired by the information acquisition interface does not indicate an automatic driving level equal to or higher than the threshold value.
    Type: Application
    Filed: March 3, 2021
    Publication date: September 9, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hideki TANAKA, Hiroyasu MENO, Tomohiro UKAI, Nobuyuki TANIGAWA, Toshiaki IKEMATSU
  • Publication number: 20210273522
    Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis in a lateral direction by rotation transmission from the rotation shaft, and the crank mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.
    Type: Application
    Filed: May 17, 2021
    Publication date: September 2, 2021
    Applicant: MAKITA CORPORATION
    Inventors: Ryosuke HARA, Tomohiro UKAI
  • Patent number: 11075567
    Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis in a lateral direction by rotation transmission from the rotation shaft, and the crank mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: July 27, 2021
    Assignee: MAKITA CORPORATION
    Inventors: Ryosuke Hara, Tomohiro Ukai
  • Publication number: 20200282482
    Abstract: A reciprocating tool easily supplies a lubricant, such as grease (lubricating oil), to a mechanism for reciprocating a slider, and prevents a lack of lubricant. A reciprocating saw as a reciprocating tool includes a motor, a reciprocating conversion mechanism that converts rotation of the motor to reciprocation, a slider connected to the reciprocating conversion mechanism and being reciprocable, and a slider guide that supports the slider in a reciprocable manner and includes a lubricant-passage member in contact with the slider to allow passage of at least part of a lubricant through the lubricant-passage member, and a lubricant reservoir located adjacent to the lubricant-passage member to store the lubricant.
    Type: Application
    Filed: February 11, 2020
    Publication date: September 10, 2020
    Applicant: MAKITA CORPORATION
    Inventors: Yosuke NAOI, Akihito HARA, Yasushi OGURA, Wei YANG, Pengfei YANG, Hao Wei MEI, Tomohiro UKAI
  • Publication number: 20200052551
    Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis in a lateral direction by rotation transmission from the rotation shaft, and the crank mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.
    Type: Application
    Filed: October 21, 2019
    Publication date: February 13, 2020
    Applicant: MAKITA CORPORATION
    Inventors: Ryosuke HARA, Tomohiro UKAI
  • Patent number: 10511208
    Abstract: A reciprocating tool includes a motor, a reciprocating member, and a crank mechanism. The motor is disposed in a housing. The reciprocating member projects from the housing. The crank mechanism converts rotation of a rotation shaft of the motor into reciprocation of the reciprocating member. The crank mechanism rotates around an axis in a lateral direction by rotation transmission from the rotation shaft, and the crank mechanism includes a crank member having an eccentric pin, a connecting rod coupling the eccentric pin to the reciprocating member, and a balancer coupled to the eccentric pin, and the balancer is supported by the eccentric pin alone in the housing.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: December 17, 2019
    Assignee: MAKITA CORPORATION
    Inventors: Ryosuke Hara, Tomohiro Ukai