Patents by Inventor Shinji Hirabayashi

Shinji Hirabayashi 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: 10620007
    Abstract: A laser marker in one aspect of embodiments of the present disclosure comprises a laser light generator, a main body, and a pack attachment portion. The pack attachment portion is configured such that a battery pack, which is chargeable and dischargeable and supplies electric power to the laser light generator, is slidably attached to an outer surface of the main body.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: April 14, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Goshi Ishikawa, Yuki Kawai, Kazuki Oguchi, Shinji Hirabayashi, Shinsuke Okuda
  • Publication number: 20190113340
    Abstract: A laser marker in one aspect of embodiments of the present disclosure comprises a laser light generator, a main body, and a pack attachment portion. The pack attachment portion is configured such that a battery pack, which is chargeable and dischargeable and supplies electric power to the laser light generator, is slidably attached to an outer surface of the main body.
    Type: Application
    Filed: December 12, 2018
    Publication date: April 18, 2019
    Applicant: MAKITA CORPORATION
    Inventors: Goshi ISHIKAWA, Yuki KAWAI, Kazuki OGUCHI, Shinji HIRABAYASHI, Shinsuke OKUDA
  • Patent number: 10184794
    Abstract: A laser marker in one aspect of embodiments of the present disclosure comprises a laser light generator, a main body, and a pack attachment portion. The pack attachment portion is configured such that a battery pack, which is chargeable and dischargeable and supplies electric power to the laser light generator, is slidably attached to an outer surface of the main body.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: January 22, 2019
    Assignee: MAKITA CORPORATION
    Inventors: Goshi Ishikawa, Yuki Kawai, Kazuki Oguchi, Shinji Hirabayashi, Shinsuke Okuda
  • Patent number: 9844865
    Abstract: A driving tool includes a first cylinder that generates compressed air by reciprocating movement of a first piston slidably disposed therein. A longitudinal direction of the first cylinder intersects a longitudinal direction of a second cylinder and extends alongside a magazine that feeds fasteners onto an axis of movement of a driving part of a second piston. The first piston reciprocally slides in a direction that extends alongside the magazine. A tool handle is disposed on the side of the first cylinder that is opposite from the magazine in the direction of the axis of movement.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: December 19, 2017
    Assignee: MAKITA CORPORATION
    Inventors: Takefumi Furuta, Shinji Hirabayashi, Tadasuke Matsuno
  • Patent number: 9731410
    Abstract: To provide a hand-held power tool which is equipped with a motor and can be used in a normal driving mode for a tip end tool and also in driving modes other than the normal driving mode. A power tool in which a tip end tool is driven by a motor to thereby perform a predetermined machining process on a workpiece, wherein the motor is a dual rotor motor comprising: an inner rotor; an outer rotor; and a stator including a driving coil mechanism, with the inner rotor and the outer rotor being coaxially disposed.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: August 15, 2017
    Assignee: MAKITA CORPORATION
    Inventors: Shinji Hirabayashi, Kenichi Ota
  • Patent number: 9724771
    Abstract: It is an object of the invention to provide a technique for reducing vibration by counter weights which smoothly operate without linearly reciprocating, in a reciprocating power tool. The reciprocating power tool has first and second bevel gears 123, 147 which are opposed to each other on either side of a pinion 119 and rotationally driven in opposite directions at the same reduction ratio by the pinion 119. Further, the reciprocating power tool has a slider 107 which is caused to linearly reciprocate in a longitudinal direction of a tool bit 111 by a crank 129. The first and second bevel gears 123, 147 are provided with first and second counter weights 143, 145 in positions displaced from their rotation axes, respectively.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: August 8, 2017
    Assignee: MAKITA CORPORATION
    Inventors: Yonosuke Aoki, Shinji Hirabayashi
  • Publication number: 20170003129
    Abstract: A laser marker in one aspect of embodiments of the present disclosure comprises a laser light generator, a main body, and a pack attachment portion. The pack attachment portion is configured such that a battery pack, which is chargeable and dischargeable and supplies electric power to the laser light generator, is slidably attached to an outer surface of the main body.
    Type: Application
    Filed: June 27, 2016
    Publication date: January 5, 2017
    Applicant: MAKITA CORPORATION
    Inventors: Goshi ISHIKAWA, Yuki KAWAI, Kazuki OGUCHI, Shinji HIRABAYASHI, Shinsuke OKUDA
  • Patent number: 9469023
    Abstract: A power tool has a continuously variable transmission, a condition detection device, and an operation control device. The continuously variable transmission changes a velocity of a rotational output from a drive motor and outputs the rotational output to a spindle to which a tip end tool is mounted. The condition detection device detects a condition of the power tool. The operation control device determines a target RPM of the spindle based on the condition of the power tool detected by the condition detection device, and controls an RPM of the drive motor and/or a transmission gear ratio of the continuously variable transmission based on the target RPM.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: October 18, 2016
    Assignee: MAKITA CORPORATION
    Inventors: Shinji Hirabayashi, Tadasuke Matsuno
  • Patent number: 9186808
    Abstract: A screw-fastening tool having a continuously-variable transmission traction drive includes a continuously-variable transmission, a thrust cam mechanism of the continuously-variable transmission and a clutch plate of a fastening torque setting mechanism arranged in series between an electric motor and a spindle. A traction grease having a high traction coefficient is used as a lubricant for a traction drive. A grease reservoir or felt members in sliding contact with oppressing parts are disposed in a transmission case.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: November 17, 2015
    Assignee: MAKITA CORPORATION
    Inventors: Shinji Hirabayashi, Shusuke Ito
  • Patent number: 9114520
    Abstract: Embodiments of the present invention may include a power tool having a driving motor, a spindle with a front tool and a continuously variable transmission mechanism. The driving motor is configured to output any number of output rotations. The continuously variable transmission mechanism is configured to shift the number of rotations from the driving motor in any ratio and output the shifted rotation to the spindle. The driving motor changes the number of output rotations. The continuously variable transmission mechanism changes the ratio. Both the driving motor and the continuously variable transmission mechanism serve to alter the rotational speed of the spindle.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: August 25, 2015
    Assignee: MAKITA CORPORATION
    Inventors: Shinji Hirabayashi, Tadasuke Matsuno
  • Publication number: 20150174748
    Abstract: A driving tool includes a first cylinder that generates compressed air by reciprocating movement of a first piston slidably disposed therein. A longitudinal direction of the first cylinder intersects a longitudinal direction of a second cylinder and extends alongside a magazine that feeds fasteners onto an axis of movement of a driving part of a second piston. The first piston reciprocally slides in a direction that extends alongside the magazine. A tool handle is disposed on the side of the first cylinder that is opposite from the magazine in the direction of the axis of movement.
    Type: Application
    Filed: April 4, 2013
    Publication date: June 25, 2015
    Inventors: Takefumi Furuta, Shinji Hirabayashi, Tadasuke Matsuno
  • Publication number: 20150124571
    Abstract: A measurement information management system includes: a measurement device; and a mobile information device, in which the measurement device includes a detail information generation unit which generates detail information including position information obtained by measuring position information, a title information transmission unit which transmits title information for identifying the detail information to the mobile information device, and a detail information transmission unit which transmits the detail information to the mobile information device according to a transmission request signal, and the mobile information device includes a detail information request unit which transmits the transmission request signal of the detail information of which the estimated transfer time necessary for transmitting the detail information corresponding to the title information transmitted from the measurement device from the measurement device to the mobile information device is determined to be shorter than a predetermi
    Type: Application
    Filed: October 30, 2014
    Publication date: May 7, 2015
    Inventor: Shinji HIRABAYASHI
  • Publication number: 20150116189
    Abstract: An system includes: a measurement device; and an information device which performs wireless communication with the measurement device, in which the measurement device includes a detail information generation unit which generates detail information including position information corresponding to time information which is the time when the position information is measured, a title information transmission unit which transmits title information for identifying the detail information to the information device, and a detail information transmission unit which transmits the detail information to the information device according to the transmission request signal, and the information device includes a display control unit which displays the title information transmitted from the measurement device on a display unit, and a detail information request unit which transmits a transmission request signal of the detail information corresponding to the title information selected from the title information displayed on the d
    Type: Application
    Filed: October 24, 2014
    Publication date: April 30, 2015
    Inventors: Hiroyuki MORITA, Shinji Hirabayashi, Michio Nakadaira
  • Publication number: 20140374131
    Abstract: A power tool has a continuously variable transmission, a condition detection device, and an operation control device. The continuously variable transmission changes a velocity of a rotational output from a drive motor and outputs the rotational output to a spindle to which a tip end tool is mounted. The condition detection device detects a condition of the power tool. The operation control device determines a target RPM of the spindle based on the condition of the power tool detected by the condition detection device, and controls an RPM of the drive motor and/or a transmission gear ratio of the continuously variable transmission based on the target RPM.
    Type: Application
    Filed: May 10, 2012
    Publication date: December 25, 2014
    Applicant: MAKITA CORPORATION
    Inventors: Shinji Hirabayashi, Tadasuke Matsuno
  • Patent number: 8911320
    Abstract: In a disc grinder, a spindle mounted with a grindstone intersects an output shaft of an electric motor. The disc grinder includes the three-point pressing continuously-variable transmission between the output shaft of the electric motor and a bevel gear train. The bevel gear train is used for deceleration. The traction grease having a high traction coefficient is used as the lubricant of the traction drive. A grease reservoir or felt members arranged in sliding contact with the pressing parts are disposed in the transmission case.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: December 16, 2014
    Assignee: Makita Corporation
    Inventors: Manabu Tokunaga, Akihiro Ito, Shinji Hirabayashi
  • Publication number: 20140165946
    Abstract: To attain further rationalization in a power tool in which a tool bit is driven by an engine. During driving of the saw chain, when the user returns a throttle lever to its initial position by releasing only the throttle lever while keeping pressing a throttle lock lever, or when the user returns the throttle lever to the initial position by releasing the throttle lever and releases the throttle lock lever, driving of an engine is stopped. Thus, further rationalization can be attained in the power tool.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 19, 2014
    Applicant: MAKITA CORPORATION
    Inventors: Kenya YANAGIHARA, Hideo KAWASHIMA, Yoshitaka ICHIKAWA, Shinji HIRABAYASHI
  • Patent number: 8739417
    Abstract: A circular saw in which cutting speed of a saw blade is smoothly controlled. A speed change mechanism of a circular saw includes first and second rotating shafts disposed parallel to each other, and first and second gear trains having different gear ratios and each having a combination of a drive gear and a driven gear as one unit which are engaged with each other and transmit torque of the first rotating shaft to the second rotating shaft. A torque transmission path via the first gear train is defined as a first power transmission path and a torque transmission path via the second gear train is defined as a second power transmission path, and the transmission path is switched between the first power transmission path and the second power transmission path.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: June 3, 2014
    Assignee: Makita Corporation
    Inventors: Manabu Tokunaga, Shinji Hirabayashi, Ryu Hashimoto
  • Patent number: 8713806
    Abstract: A power tool includes a power source, a speed change mechanism and a tool bit. The speed change mechanism includes first and second rotating shafts disposed parallel to each other, a first power transmission path provided with a first gear train and a first clutch and a second power transmission path provided with a second gear train and a second clutch. The power transmission path is switched between the first power transmission path and the second power transmission path while the first and second gear trains are held engaged, by shifting of the first and second clutches between the power transmission state and the power transmission interrupted state according to a load applied to the tool bit. The speed change mechanism further includes a switching retaining mechanism, a switching preventing mechanism, a switching set value adjusting mechanism or a switching mechanism.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: May 6, 2014
    Assignee: Makita Corporation
    Inventors: Manabu Tokunaga, Shinji Hirabayashi, Ryu Hashimoto
  • Publication number: 20140096988
    Abstract: A brush cutter as a power tool includes a combustion engine, an electric motor, a gear head which drives a blade, a battery pack which provides electric current to the electric motor and a controller which controls a driving of the blade. An output shaft of the combustion engine and an output shaft of the electric motor are arranged coaxially to each other. Further, the combustion engine drives the gear head and thereby the blade is driven. The controller has a first control mode in which the blade is driven and a second control mode in which the battery pack is charged. In the second control mode, the controller controls the combustion engine so that the combustion engine drives the electric motor as a generator without driving the blade, and the battery pack is charged by the generator.
    Type: Application
    Filed: October 3, 2013
    Publication date: April 10, 2014
    Inventors: Shinji HIRABAYASHI, Yoshitaka ICHIKAWA
  • Publication number: 20140096986
    Abstract: A chain saw as a power tool includes a combustion engine and an electric motor. The chain saw has a driving shaft which drives a saw chain, a battery pack which provides electric current to the electric motor, a controller which is connected to the battery pack, and a sensor which detects a driving state of a driving mechanism including the combustion engine and the electric motor. In the chain saw, the saw chain is driven in a hybrid driving mode in which both the combustion engine and the electric motor drive the driving shaft. Further, the controller controls a driving of the combustion engine based on a detection result of the sensor.
    Type: Application
    Filed: October 3, 2013
    Publication date: April 10, 2014
    Applicant: MAKITA CORPORATION
    Inventors: Shinji HIRABAYASHI, Kenya YANAGIHARA, Yoshitaka ICHIKAWA