Patents by Inventor Goh Yamamura
Goh Yamamura 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).
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Publication number: 20230391389Abstract: A power-assisted trolley includes: at least three wheels including a drive wheel; a cargo bed supported by the wheels; a handle including a grip portion extending in a left-right direction above a rear portion of the cargo bed; a motor configured to rotate the drive wheel; and a battery mounting portion configured to mount thereon a battery to supply power to the motor.Type: ApplicationFiled: May 24, 2023Publication date: December 7, 2023Applicant: MAKITA CORPORATIONInventors: Shi Xuan PENG, Goh YAMAMURA
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Patent number: 11633795Abstract: An easily operable, highly durable cutting machine finely adjusts the miter angle of a turntable. A cutting machine includes a turntable supported in a manner rotatable horizontally to a base and including a substantially disk-shaped table body to receive a workpiece and a table extension protruding forward from the table body, a cutting machine body located above the turntable and connected in a manner swingable vertically to the turntable, and a fine angle adjuster that adjusts a rotation angle of the turntable with respect to the base and including a rack on the base, a pinion located in the table body within an area of the table body as viewed from above and engageable with the rack directly or indirectly, and an operation part operable to rotate the pinion.Type: GrantFiled: September 25, 2019Date of Patent: April 25, 2023Assignee: MAKITA CORPORATIONInventors: Yuki Miwa, Goh Yamamura
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Patent number: 11285553Abstract: A benchtop cutting machine (1), such as a miter saw, includes: a base (2); a turntable (3), which is rotatable relative to the base; and a lock mechanism (40), which locks the rotation of the turntable relative to the base. The lock mechanism comprises a locking pin (45), which is movable along its axial direction and locks the rotation of the turntable by engaging with the base, and a manipulatable lever (41), which is pivotable in an up-down direction to release the engagement of the locking pin from the base. The manipulatable lever has a pivot point or center of rotation (42) that is located upward of the locking pin.Type: GrantFiled: July 23, 2020Date of Patent: March 29, 2022Assignee: MAKITA CORPORATIONInventors: Goh Yamamura, Yuki Miwa
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Patent number: 11179787Abstract: A cutting machine reduces cost increase associated with production equipment and has design flexibility for different types of batteries. A cutting machine for cutting a workpiece includes a cutting machine body including a cutting blade, a motor that drives the cutting blade, and a motor housing accommodating the motor, and an adapter including a body holder attached to the cutting machine body and a battery holder in which a battery to power the motor is installable.Type: GrantFiled: September 4, 2019Date of Patent: November 23, 2021Assignee: MAKITA CORPORATIONInventors: Yuto Yoshida, Goh Yamamura
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Publication number: 20210039177Abstract: A benchtop cutting machine (1), such as a miter saw, includes: a base (2); a turntable (3), which is rotatable relative to the base; and a lock mechanism (40), which locks the rotation of the turntable relative to the base. The lock mechanism comprises a locking pin (45), which is movable along its axial direction and locks the rotation of the turntable by engaging with the base, and a manipulatable lever (41), which is pivotable in an up-down direction to release the engagement of the locking pin from the base. The manipulatable lever has a pivot point or center of rotation (42) that is located upward of the locking pin.Type: ApplicationFiled: July 23, 2020Publication date: February 11, 2021Inventors: Goh YAMAMURA, Yuki MIWA
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Publication number: 20200130077Abstract: A cutting machine reduces cost increase associated with production equipment and has design flexibility for different types of batteries. A cutting machine for cutting a workpiece includes a cutting machine body including a cutting blade, a motor that drives the cutting blade, and a motor housing accommodating the motor, and an adapter including a body holder attached to the cutting machine body and a battery holder in which a battery to power the motor is installable.Type: ApplicationFiled: September 4, 2019Publication date: April 30, 2020Applicant: MAKITA CORPORATIONInventors: Yuto YOSHIDA, Goh YAMAMURA
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Publication number: 20200130080Abstract: An easily operable, highly durable cutting machine finely adjusts the miter angle of a turntable. A cutting machine includes a turntable supported in a manner rotatable horizontally to a base and including a substantially disk-shaped table body to receive a workpiece and a table extension protruding forward from the table body, a cutting machine body located above the turntable and connected in a manner swingable vertically to the turntable, and a fine angle adjuster that adjusts a rotation angle of the turntable with respect to the base and including a rack on the base, a pinion located in the table body within an area of the table body as viewed from above and engageable with the rack directly or indirectly, and an operation part operable to rotate the pinion.Type: ApplicationFiled: September 25, 2019Publication date: April 30, 2020Applicant: MAKITA CORPORATIONInventors: Yuki MIWA, Goh YAMAMURA
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Patent number: 10610937Abstract: The first rotation lock mechanism 31 is configured such that a screw force produced by a rotation operation of an operation member 33 is transmitted to a lock member 42 via a transmission bracket 36 and a transmission rod 40. Through minimizing the length of the screw shaft 35, the transmission bracket 36, and the transmission rod 40, the position of a lock member which a screw shaft 35 is brought into contact with and the screw force is directly applied to is arranged to be closer to a user in comparison with conventional prior art. As a result, transmission loss of the screw force can be reduced, enhancing accuracy and consistency for the fixing force with respect to the table can be improved.Type: GrantFiled: November 6, 2017Date of Patent: April 7, 2020Assignee: MAKITA CORPORATIONInventor: Goh Yamamura
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Publication number: 20190314908Abstract: An operation knob is attached to one end of a transmission rod. The transmission rod is located in a slide bar supporting a cutting device main body so as to be slidable in a front-to-rear direction. A pulley of a belt transmission mechanism is joined to the other end of the transmission rod, and a click mechanism is arranged around a portion of the pulley. The click mechanism provides a tactile sensation (e.g. click feeling or feeling of moderation) and improves operability of the operation knob.Type: ApplicationFiled: November 8, 2017Publication date: October 17, 2019Applicant: MAKITA CORPORATIONInventors: Syuji AOYAMA, Yukinori SUZUKI, Goh YAMAMURA
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Publication number: 20180133817Abstract: The first rotation lock mechanism 31 is configured such that a screw force produced by a rotation operation of an operation member 33 is transmitted to a lock member 42 via a transmission bracket 36 and a transmission rod 40. Through minimizing the length of the screw shaft 35, the transmission bracket 36, and the transmission rod 40, the position of a lock member which a screw shaft 35 is brought into contact with and the screw force is directly applied to is arranged to be closer to a user in comparison with conventional prior art. As a result, transmission loss of the screw force can be reduced, enhancing accuracy and consistency for the fixing force with respect to the table can be improved.Type: ApplicationFiled: November 6, 2017Publication date: May 17, 2018Applicant: MAKITA CORPORATIONInventor: Goh YAMAMURA
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Publication number: 20180133819Abstract: A dust collection hose 162 is configured to be connected to a main body side connection port 161 and a supporting side connection port 171 of a main body supporting portion 60 so as to be smoothly rotatable about the respective longitudinal axes extending through the center of the respective port openings. Because of this configuration, even if an excessive external force is applied to the dust collection hose 162, the hose is able to rotate back into and retain a non-bent, smooth arrangement path of the dust collection hose 162, thus preventing occurrence of bending of the dust collection hose 162.Type: ApplicationFiled: November 6, 2017Publication date: May 17, 2018Applicant: MAKITA CORPORATIONInventors: Goh YAMAMURA, Yukinori SUZUKI
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Patent number: 9038278Abstract: A blade mounting device of a cutting tool includes a lock device and a blade guide. The lock device is configured to releasably lock a blade against a rod of a cutting tool. The blade guide is movable relative to the rod in an axial direction of the rod and is coupled to the lock device, so that the lock device locks and releases the blade in response to position of the blade guide in the axial direction. The blade guide has a guide recess having a bottom and capable of guiding and engaging the blade, so that the blade guide can be moved by the blade in the axial direction through engagement of the guide recess with the blade. The blade guide has a configuration other than a thin flat plate configuration.Type: GrantFiled: June 3, 2011Date of Patent: May 26, 2015Assignee: MAKITA CORPORATIONInventors: Toshiyuki Kani, Goh Yamamura
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Patent number: 9021930Abstract: A cutting device includes a cutting unit having a rotary blade, a table for placing a workpiece thereon, and a support device vertically movably supporting the cutting unit relative to the table. The cutting unit includes a blade case. The blade case covers an upper portion of the rotary blade and has a dust discharge member for discharging dust produced at a cutting region. The cutting device further includes a dust guide device disposed on at least one of an upstream side and a downstream side of the dust discharge member with respect to a flow of the dust. A position of at least a part of the dust guide device changes relative to the dust discharge member according to change of the vertical position of the cutting unit.Type: GrantFiled: April 14, 2011Date of Patent: May 5, 2015Assignee: Makita CorporationInventors: Toshiyuki Kani, Goh Yamamura
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Patent number: 8850941Abstract: The present invention includes a cutting device including a table configured to accommodate a workpiece, and a cutting unit positioned on an upper side of the table and being operable to vertically move relative to the table. The cutting unit includes a cutting blade, and a grip portion disposed on a lateral side of the cutting blade and capable of being grasped by an operator in order to vertically move the cutting unit. The grip portion has a palm contact part that can be touched by a palm of the operator when the operator grasps the grip portion. The palm contact part is inclined relative to a reference line that may be perpendicular to a surface of the cutting blade.Type: GrantFiled: September 18, 2009Date of Patent: October 7, 2014Assignee: Makita CorporationInventors: Goh Yamamura, Tomohiro Hachisuka
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Patent number: 8661957Abstract: A cutting device includes a table for placing thereon a workpiece. A tool unit supports a cutting tool and is laterally tiltably supported on the table, so that the rotational axis of the cutting tool can be inclined relative to a horizontal direction. A positioning device includes a first positioning member and a second positioning member that can interact with each other to position the tool unit at a plurality of laterally tilted positions. At least one of the first and second positioning members can be moved to change the laterally tilted position positionable by the positioning device.Type: GrantFiled: November 28, 2012Date of Patent: March 4, 2014Assignee: Makita CorporationInventors: Syuji Aoyama, Toshiyuki Kani, Shinya Kojima, Goh Yamamura, Katsuhiko Sasaki
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Publication number: 20130087034Abstract: A cutting device includes a table for placing thereon a workpiece. A tool unit supports a cutting tool and is laterally tiltably supported on the table, so that the rotational axis of the cutting tool can be inclined relative to a horizontal direction. A positioning device includes a first positioning member and a second positioning member that can interact with each other to position the tool unit at a plurality of laterally tilted positions. At least one of the first and second positioning members can be moved to change the laterally tilted position positionable by the positioning device.Type: ApplicationFiled: November 28, 2012Publication date: April 11, 2013Inventors: Syuji AOYAMA, Toshiyuki KANI, Shinya KOJIMA, Goh YAMAMURA, Katsuhiko SASAKI
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Patent number: 8375836Abstract: The present invention includes a cutting device including a table and a cutting unit disposed on an upper side of the table and vertically movably supported by the table via a slide mechanism. The slide mechanism enables the cutting unit to slide in a sliding direction relative to the table within a plane substantially parallel to a surface of the table. A slide lock mechanism can lock and unlock the sliding movement of the cutting unit and includes an operation member operable to slide for locking and unlocking the sliding movement.Type: GrantFiled: July 10, 2009Date of Patent: February 19, 2013Assignee: Makita CorporationInventors: Toshiyuki Kani, Goh Yamamura
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Patent number: 8359959Abstract: A cutting device includes a table for placing thereon a workpiece. A tool unit supports a cutting tool and is laterally tiltably supported on the table, so that the rotational axis of the cutting tool can be inclined relative to a horizontal direction. A positioning device includes a first positioning member and a second positioning member that can interact with each other to position the tool unit at a plurality of laterally tilted positions. At least one of the first and second positioning members can be moved to change the laterally tilted position positionable by the positioning device.Type: GrantFiled: December 29, 2008Date of Patent: January 29, 2013Assignee: Makita CorporationInventors: Syuji Aoyama, Toshiyuki Kani, Shinya Kojima, Goh Yamamura, Katsuhiko Sasaki
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Patent number: D838753Type: GrantFiled: June 26, 2017Date of Patent: January 22, 2019Assignee: MAKITA CORPORATIONInventors: Koji Takahashi, Goh Yamamura, Yukinori Suzuki
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Patent number: D944614Type: GrantFiled: January 8, 2020Date of Patent: March 1, 2022Assignee: MAKITA CORPORATIONInventors: Kento Nakamura, Goh Yamamura, Yuto Yoshida, Yuki Miwa