Patents by Inventor Hitoshi Iida

Hitoshi Iida 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: 11254275
    Abstract: An airbag device for a driver's seat adapted to be mounted on a boss of a steering wheel disposed at a center of a rim is disclosed. The airbag device includes an inflatable airbag folded in the form of an airbag package. The airbag includes a vehicle-side wall that includes a gas inlet port and is configured to be supported by the rim when deployed, and a driver-side wall. The airbag, before folded into the airbag package, has a flat initial folded form in which the driver-side wall lies over the vehicle-side wall. The initial folded form includes a folded-in portion in which a front edge portion of the vehicle-side wall is folded inwardly and rearwardly beneath a front edge portion of the driver-side wall, and a folded-back portion in which the front edge portion of the driver-side wall which adjoins the folded-in portion is folded towards the inlet port on the vehicle-side wall.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: February 22, 2022
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Tsutomu Ishii, Koji Kawamura, Hitoshi Iida
  • Publication number: 20210114195
    Abstract: A power tool, such as a rotary hammer, includes a housing, an output shaft for mounting a tool accessary and a motor having a motor shaft that generates a rotational output for rotating and linearly hammering the output shaft. The rotational output of the motor shaft is coupled to the output shaft via a driving mechanism that includes a hammer mechanism. An intervening member is axially movable relative to the motor shaft and is operably coupled between the motor shaft and the hammer mechanism. The hammer mechanism and the output shaft are supported by a movable support that is axially movable relative to the housing. Because the output shaft and the driving mechanism are movable relative to the motor and the housing, which preferably includes handle, via the intervening member and the movable support during hammering operations, vibration generated during hammering operations can be dampened before reaching the housing.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 22, 2021
    Inventors: Kiyonobu YOSHIKANE, Yoshitaka MACHIDA, Hitoshi IIDA, Kazuki NAKAGAWA
  • Patent number: 10919137
    Abstract: A work tool, in which any one of a plurality of operation modes is selectable and which is configured to operate according to the selected operation mode, includes a switch for driving a tool accessory, an operation member, a mode switching member and a movement restricting mechanism. The operation member is configured to be held in an off-position in a non-pressed state and configured to move to an on-position in response to an external pressing operation. The mode switching member is configured to be switched between a plurality of switching positions in response to an external operation, the switching positions respectively corresponding to the operation modes. The movement restricting mechanism is configured to restrict a movement of the operation member from the off-position to the on-position in interlock with a switching operation of the mode switching member.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: February 16, 2021
    Assignee: MAKITA CORPORATION
    Inventors: Hitoshi Iida, Masanori Furusawa, Kei Watanabe
  • Publication number: 20210039240
    Abstract: A hand-held impact tool includes a motor, a driving mechanism, a tool body, a main handle, a first detection part, a second detection part and a control part. The tool body is configured such that an auxiliary handle is removably attached thereto. The main handle is connected to the tool body. The first detection part is configured to detect selected one of a plurality of modes. The second detection part is configured to detect whether or not the auxiliary handle is attached to the tool body. The control part is configured to control operation of the impact tool based on detection results of the first detection part and the second detection part.
    Type: Application
    Filed: July 30, 2020
    Publication date: February 11, 2021
    Applicant: MAKITA CORPORATION
    Inventor: Hitoshi IIDA
  • Patent number: 10913141
    Abstract: An impact tool includes a motor, a driving mechanism, and a vibration sensor. The driving mechanism is configured to perform a hammering operation of linearly driving a tool accessory along an impact-axis by power of the motor. The impact-axis extends in a front-rear direction of the impact tool. The vibration sensor is configured to detect vibrations. The vibration sensor is disposed such that the vibration sensor is capable of detecting vibrations of a first frequency among vibrations caused in the impact tool, and such that transmission of vibrations of a second frequency to the vibration sensor is suppressed. The vibrations of the first frequency result from the hammering operation. The second frequency is different from the first frequency.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: February 9, 2021
    Assignee: MAKITA CORPORATION
    Inventors: Hitoshi Iida, Masanori Furusawa, Hirokatsu Yamamoto, Ryo Umemoto, Yoshinori Sasaki, Akira Naito
  • Patent number: 10875168
    Abstract: A power tool contains a brushless motor that includes a stator having a stack thickness and an outer diameter, a rotor having a diameter, and a motor shaft extending from the rotor and having a rotational axis. A drive mechanism is operably coupled to the motor shaft and is configured to drive a tool accessory in relation to a drive axis. A first housing houses the motor and the drive mechanism. The drive axis does not intersect the brushless motor, but the rotational axis of the motor shaft intersects the drive axis. The outer diameter of the stator is at least five times greater than the stack thickness. Furthermore, the diameter of the rotor is greater than the stack thickness.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: December 29, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Hitoshi Iida, Masanori Furusawa
  • Publication number: 20200306911
    Abstract: The dust concentration is prevented from increasing with uncollected dust scattering in a work environment. A dust collection system for a power tool includes a power tool, a dust collection apparatus connected to the power tool, and a system control unit that controls an operation of the system for controlling an operation of the power tool and/or an operation of the dust collection apparatus in accordance with the dust concentration obtained from an external unit.
    Type: Application
    Filed: January 29, 2020
    Publication date: October 1, 2020
    Applicant: MAKITA CORPORATION
    Inventors: Hitoshi IIDA, Keita MORI
  • Publication number: 20200306945
    Abstract: A dust collecting system includes a power tool and a dust collector. The power tool includes at least one battery-mounting part, a first motor, a driving mechanism and a body housing. The at least one battery-mounting part is each configured to removably receive a battery. The first motor is configured to operate with electric power supplied from the battery. The driving mechanism is configured to drive the tool accessory by power of the first motor. The body housing houses the first motor and the driving mechanism. The dust collecting system includes a control device configured to control operation of at least one of the power tool and the dust collector according to a state of the whole dust collecting system.
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Applicant: MAKITA CORPORATION
    Inventors: Kiyonobu YOSHIKANE, Yoshitaka MACHIDA, Hitoshi IIDA
  • 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: 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
  • Publication number: 20200307486
    Abstract: An airbag device for a driver's seat adapted to be mounted on a boss of a steering wheel disposed at a center of a rim is disclosed. The airbag device includes an inflatable airbag folded in the form of an airbag package. The airbag includes a vehicle-side wall that includes a gas inlet port and is configured to be supported by the rim when deployed, and a driver-side wall. The airbag, before folded into the airbag package, has a flat initial folded form in which the driver-side wall lies over the vehicle-side wall. The initial folded form includes a folded-in portion in which a front edge portion of the vehicle-side wall is folded inwardly and rearwardly beneath a front edge portion of the driver-side wall, and a folded-back portion in which the front edge portion of the driver-side wall which adjoins the folded-in portion is folded towards the inlet port on the vehicle-side wall.
    Type: Application
    Filed: February 21, 2020
    Publication date: October 1, 2020
    Inventors: Tsutomu ISHII, Koji KAWAMURA, Hitoshi IIDA
  • Patent number: 10780564
    Abstract: A power tool, such as a rotary hammer or hammer drill, includes a first housing that contains a motor and a drive mechanism for linearly reciprocally driving a tool accessory, and a second housing that includes a handle, a first portion and a second portion. At least one elastic element connects the first and second housings such that the handle is biased away from the first housing. A first set of sliding contact surfaces is defined on or connected to the first housing and the first portion of the second housing. A second set of sliding contact surfaces is defined on or connected to the first housing and the second portion of the second housing. The first and second sets of sliding contact surfaces are located on opposite sides of the motor such that the rotational axis of the motor intersects the first and second sets of sliding contact surfaces.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: September 22, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Hitoshi Iida, Masanori Furusawa, Kei Watanabe
  • Patent number: 10751867
    Abstract: A hammer drill includes a switch, an operation member, a lock member, a mode switching member and a linked member. The operation member is normally held in an OFF position and moves to an ON position in response to an external pressing operation. The lock member moves in response to an external operation between a locking position, where the lock member is capable of locking the operation member in the ON position, and a non-locking position, where the lock member is incapable of locking the operation member. The linked member moves to an allowing position for allowing a movement of the lock member when the mode switching member is switched to a switching position corresponding to a hammer mode, and moves to an inhibiting position for inhibiting the movement of the lock member when the mode switching member is switched to a switching position corresponding to a drill mode.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: August 25, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Hitoshi Iida, Masanori Furusawa
  • Patent number: 10688644
    Abstract: A power tool includes a motor, a housing, a battery mounting part, and a battery protection part. The battery mounting part is provided to the housing on an opposite side from a working axis across the motor in an extending direction of a rotation axis of the motor. The battery mounting part is configured such that one end portion of at least one battery is mounted to the battery mounting part and an opposite end portion of the at least one battery in the extending direction of the rotation axis is exposed from the housing. The battery protection part is provided to an outer surface portion of the housing and configured to protect at least one corner region of the opposite end portion of the at least one battery against external force when the one end portion is mounted to the battery mounting part.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: June 23, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Hitoshi Iida, Masanori Furusawa, Kei Watanabe, Takafumi Kotsuji, Keisuke Yamada
  • Patent number: 10328890
    Abstract: A completely folded body of an airbag includes: a front-side folded portion; and a rear-side folded portion, wherein: the front-side folded portion has such a folded shape that a tip separated longitudinally from the mounting portion of the front overlapped portion is stored in a dent portion, in which a front side is open and a rear side is dented, between a mounting-portion-side folded portion near the mounting portion and a central folded portion between the tip and the mounting-portion-side folded portion; the tip of the front overlapped portion includes a leading edge separate longitudinally the farthest from the mounting portion, and a tip root-side portion connected to the leading edge; and the leading edge is provided on an upper side of the tip root-side portion in the front-side folded portion to be inverted rearward to a central side of the mounting portion.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: June 25, 2019
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Hayato Abo, Hitoshi Iida, Ryotaro Ishida, Yoshiteru Banno
  • Publication number: 20180297186
    Abstract: An impact tool includes a motor, a driving mechanism, and a vibration sensor. The driving mechanism is configured to perform a hammering operation of linearly driving a tool accessory along an impact-axis by power of the motor. The impact-axis extends in a front-rear direction of the impact tool. The vibration sensor is configured to detect vibrations. The vibration sensor is disposed such that the vibration sensor is capable of detecting vibrations of a first frequency among vibrations caused in the impact tool, and such that transmission of vibrations of a second frequency to the vibration sensor is suppressed. The vibrations of the first frequency result from the hammering operation. The second frequency is different from the first frequency.
    Type: Application
    Filed: April 5, 2018
    Publication date: October 18, 2018
    Applicant: MAKITA CORPORATION
    Inventors: Hitoshi IIDA, Masanori FURUSAWA, Hirokatsu YAMAMOTO, Ryo UMEMOTO, Yoshinori SASAKI, Akira NAITO
  • Publication number: 20180250802
    Abstract: A work tool, in which any one of a plurality of operation modes is selectable and which is configured to operate according to the selected operation mode, includes a switch for driving a tool accessory, an operation member, a mode switching member and a movement restricting mechanism. The operation member is configured to be held in an off-position in a non-pressed state and configured to move to an on-position in response to an external pressing operation. The mode switching member is configured to be switched between a plurality of switching positions in response to an external operation, the switching positions respectively corresponding to the operation modes. The movement restricting mechanism is configured to restrict a movement of the operation member from the off-position to the on-position in interlock with a switching operation of the mode switching member.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 6, 2018
    Applicant: MAKITA CORPORATION
    Inventors: Hitoshi Iida, Masanori Furusawa, Kei Watanabe
  • Publication number: 20180126534
    Abstract: A power tool includes a motor, a housing, a battery mounting part, and a battery protection part. The battery mounting part is provided to the housing on an opposite side from a working axis across the motor in an extending direction of a rotation axis of the motor. The battery mounting part is configured such that one end portion of at least one battery is mounted to the battery mounting part and an opposite end portion of the at least one battery in the extending direction of the rotation axis is exposed from the housing. The battery protection part is provided to an outer surface portion of the housing and configured to protect at least one corner region of the opposite end portion of the at least one battery against external force when the one end portion is mounted to the battery mounting part.
    Type: Application
    Filed: November 2, 2017
    Publication date: May 10, 2018
    Applicant: MAKITA CORPORATION
    Inventors: Hitoshi IIDA, Masanori FURUSAWA, Kei WATANABE, Takafumi KOTSUJI, Keisuke YAMADA
  • Publication number: 20180099393
    Abstract: A power tool contains a brushless motor that includes a stator having a stack thickness and an outer diameter, a rotor having a diameter, and a motor shaft extending from the rotor and having a rotational axis. A drive mechanism is operably coupled to the motor shaft and is configured to drive a tool accessory in relation to a drive axis. A first housing houses the motor and the drive mechanism. The drive axis does not intersect the brushless motor, but the rotational axis of the motor shaft intersects the drive axis. The outer diameter of the stator is at least five times greater than the stack thickness. Furthermore, the diameter of the rotor is greater than the stack thickness.
    Type: Application
    Filed: October 4, 2017
    Publication date: April 12, 2018
    Inventors: Hitoshi IIDA, Masanori FURUSAWA
  • Patent number: D838157
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: January 15, 2019
    Assignee: MAKITA CORPORATION
    Inventors: Wataru Suzuki, Hitoshi Iida