Patents by Inventor Yoshitaka Machida
Yoshitaka Machida 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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Patent number: 10688613Abstract: To provide an improved technique for improving operability in an operation using a power tool with a dust collector attached thereto, a hammer drill to which a dust collector is attached has a body and a handle. The dust collector has a dust collecting part and a male plug. The dust collector is attached to the hammer drill by connecting the male plug to the handle of the hammer drill.Type: GrantFiled: February 17, 2015Date of Patent: June 23, 2020Assignee: MAKITA CORPORATIONInventor: Yoshitaka Machida
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Patent number: 10655348Abstract: A rebar tying tool configured to tie plural rebars using a wire is disclosed herein. The rebar tying tool may include a reel supporting mechanism configured to switch between a first state of detachably supporting a reel on which the wire is wound and a second state of undetachably supporting the reel; a wire feeding mechanism configured to feed the wire from the reel; and an openable cover that at least partially covers at least one of the reel supporting mechanism and the wire feeding mechanism. The reel supporting mechanism may switch from the first state to the second state by a user operation of closing the cover, and/or may switch from the second state to the first state by a user operation of opening the cover.Type: GrantFiled: May 12, 2017Date of Patent: May 19, 2020Assignee: MAKITA CORPORATIONInventors: Yoshitaka Machida, Tadasuke Matsuno
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Publication number: 20200078918Abstract: An impact tool includes a motor, a driving mechanism, a body housing, a battery-mounting part, a first detection part and a control part. The driving mechanism is configured to linearly drive a tool accessory along a driving axis by power of the motor, the driving axis extending in a front-rear direction of the impact tool. The body housing houses the motor and the driving mechanism. The battery-mounting part is configured to removably receive a battery. The first detection part is configured to detect a rearward push of the tool accessory relative to the body housing. The control part is configured to start driving of the motor in response to detection of the rearward push of the tool accessory by the first detection part.Type: ApplicationFiled: September 9, 2019Publication date: March 12, 2020Applicant: MAKITA CORPORATIONInventors: Kiyonobu YOSHIKANE, Yoshiro TADA, Yoshitaka MACHIDA
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Publication number: 20200078919Abstract: A work tool includes a motor, a driving mechanism, a body housing and a handle. The driving mechanism is configured to perform an operation of linearly reciprocating the tool accessory along a driving axis extending in a front-rear direction. The handle includes a grip part extending substantially in an up-down direction, and a battery-mounting part provided on a lower side of the grip part. An upper end portion of the handle is connected to a rear end portion of the body housing via an elastic member so as to be movable relative to the body housing. A lower end portion of the handle is connected to the rear end portion of the body housing so as to be rotatable relative to the body housing, around a rotation axis extending in a left-right direction. The rotation axis is located on a lower side of the battery-mounting part.Type: ApplicationFiled: September 9, 2019Publication date: March 12, 2020Applicant: MAKITA CORPORATIONInventors: Yoshitaka MACHIDA, Taro HISANO
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Patent number: 10513022Abstract: An impact tool has a body and a striking mechanism that drives a tool accessory in a prescribed longitudinal direction. The body has a first body element on which the striking mechanism is provided, and a second body element. The first body element and the second body element are connected via a cushioning mechanism. A vibration reducing mechanism is provided on the first body element.Type: GrantFiled: November 11, 2015Date of Patent: December 24, 2019Assignee: MAKITA CORPORATIONInventors: Yoshitaka Machida, Kiyonobu Yoshikane
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Publication number: 20190381646Abstract: A power tool (100) comprises a motor (110) operably driving a tool bit (119), a tool body (101) housing the motor (110), a handle (109) coupled to the tool body (101), and at least two battery mount parts (160A, 160B) defined on the handle (109) and/or the tool body (101). Each of the battery mount parts (160A, 160B) comprises a battery engaging part (161) configured to detachably engage with battery packs (170A, 170B) by sliding the battery packs (170A, 170B) relative to the battery engaging part (161) in a direction perpendicular to the longitudinal direction of the tool bit (119).Type: ApplicationFiled: September 3, 2019Publication date: December 19, 2019Inventors: Kiyonobu YOSHIKANE, Hajime TAKEUCHI, Yoshiro TADA, Masanori FURUSAWA, Masao MIWA, Shinji ONODA, Yoshitaka MACHIDA
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Patent number: 10507556Abstract: A dust collector for an electric power tool includes a main body case, a dust box, a sliding portion, and a dust collecting route. The main body case includes an exhaust port, the main body case being configured to be installed on an electric power tool. The dust box internally includes a filter. The sliding portion is disposed on the main body case. The sliding portion has a front end on which a nozzle with a suction opening is disposed. The sliding portion is slidable in a front-rear direction. The dust collecting route is from the suction opening to the exhaust port passing through the filter. The main body case includes a guiding portion through which the sliding portion passes, and the guiding portion allows the sliding portion to project rearward when the sliding portion slides.Type: GrantFiled: January 18, 2017Date of Patent: December 17, 2019Assignee: MAKITA CORPORATIONInventors: Yoshitaka Machida, Kiyonobu Yoshikane
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Publication number: 20190314943Abstract: A dust collector for an electric power tool includes a main body case, a dust box, a sliding portion, and a dust collecting route. The main body case includes an exhaust port, the main body case being configured to be installed on an electric power tool. The dust box internally includes a filter. The sliding portion is disposed on the main body case. The sliding portion has a front end on which a nozzle with a suction opening is disposed. The sliding portion is slidable in a front-rear direction. The dust collecting route is from the suction opening to the exhaust port passing through the filter. The main body case includes a guiding portion through which the sliding portion passes, and the guiding portion allows the sliding portion to project rearward when the sliding portion slides.Type: ApplicationFiled: June 28, 2019Publication date: October 17, 2019Applicant: MAKITA CORPORATIONInventors: Yoshitaka MACHIDA, Kiyonobu YOSHIKANE
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Publication number: 20190291255Abstract: A work tool includes a motor, a driving mechanism, a housing, a handle, a detecting mechanism and an elastic support part. The detecting mechanism is configured to detect information corresponding to an operating state of the work tool. The elastic support part supports the detecting mechanism so as to be movable relative to the housing in at least two of a front-rear direction, an up-down direction and a left-right direction. The elastic support part includes at least one elastic member disposed between the detecting mechanism and the housing. The elastic support part has respectively different spring constants in the at least two directions.Type: ApplicationFiled: March 11, 2019Publication date: September 26, 2019Applicant: MAKITA CORPORATIONInventors: Kiyonobu YOSHIKANE, Yoshitaka MACHIDA, Taro HISANO, Hirokatsu YAMAMOTO
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Publication number: 20190194958Abstract: A mbar tying machine configured to tie rebars with a wire is disclosed. The rebar tying machine may include a housing. The hosing may include a communication portion that allows iron powder to move therethrough from outside to inside of the housing. The rebar tying machine may include a collecting magnet configured to collect the iron powder.Type: ApplicationFiled: November 29, 2018Publication date: June 27, 2019Applicant: MAKITA CORPORATIONInventors: Yoshitaka MACHIDA, Tadasuke MATSUNO
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Publication number: 20190093374Abstract: A rebar tying tool may include a controller configured to selectively execute one of a plurality of control modes including a single-action control mode and a repetitive-action control mode. While the controller executes the single-action control mode, a tying mechanism may perform a tying operation in response to an activation of a manipulation member by a user. While the controller executes the repetitive-action control mode, the tying mechanism may perform the tying operation in response to a detection of the at least one of rebars by a detection mechanism.Type: ApplicationFiled: May 11, 2017Publication date: March 28, 2019Applicant: MAKITA CORPORATIONInventors: Yoshitaka MACHIDA, Tadasuke MATSUNO
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Patent number: 10022852Abstract: An electrical hammer (100) comprises a main housing (101), a hand grip (500) connected to the main housing (101) via a compression coil spring (321). In the electrical hammer (100), a hammer bit (119) is driven by a first motion converting mechanism (120) and thereby a hammering operation is performed. During the hammering operation, the hand grip (500) is moved against the main housing (101) in a state that biasing force of the compression coil spring (321) is applied on the hand grip (500). Further, the electrical hammer (100) comprises a second motion converting mechanism (220) which drives a counterweight (231).Type: GrantFiled: May 18, 2015Date of Patent: July 17, 2018Assignee: MAKITA CORPORATIONInventors: Hiroki Ikuta, Yoshitaka Machida, Masanori Furusawa
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Patent number: 9962823Abstract: A hammer drill includes a main body which houses a driving motor having a brush and a brush holder unit which holds the brush and switches a position of the brush, and a main handle which is movable to the main body. Further, a coil spring which biases the handle is provided. In a state that the coil spring biases the handle, the handle is moved against the main body in a longitudinal direction of a hammer bit and vibration transmission from the main body to the handle is prevented. Further, interference of a lever of the brush holder unit and the handle is prevented by a part of an opening formed on the handle.Type: GrantFiled: November 26, 2014Date of Patent: May 8, 2018Assignee: MAKITA CORPORATIONInventor: Yoshitaka Machida
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Patent number: 9950416Abstract: To provide a handle that is effective at achieving both vibration resistance and usability. A handle attached to a tool body of a power tool has: a grip portion; a connecting portion that connects to the tool body; elastic element interposing regions that are formed between the grip portion and the connecting portion; elastic elements disposed in the elastic element interposing regions; a powder filling region formed between the grip portion and connecting portion; and a plurality of powder bodies that fill the powder filling region.Type: GrantFiled: April 16, 2014Date of Patent: April 24, 2018Assignee: MAKITA CORPORATIONInventors: Tomoyuki Kutsuna, Ryo Sunazuka, Yoshitaka Machida, Masahiro Ito
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Publication number: 20180015602Abstract: An impact tool includes a tool body, a tool holder, a cylindrical member, a reciprocating member, a motor, a first rotary body, a second rotary body, a swinging member, and clutch mechanisms. The clutch mechanisms are disposed between the first rotary body and the second rotary body on a power transmission path from the motor to the swinging member. The tool holder and the cylindrical member move together as a movable unit with respect to the tool body between a front end position and a separate position, according to a pressing force applied to the tool holder. The clutch mechanisms are each configured to start transmission of the first rotary body to the second rotary body while the movable unit moves from the front end position to the separate position and to interrupt transmission while the movable unit moves from the separate position to the front end position.Type: ApplicationFiled: July 10, 2017Publication date: January 18, 2018Applicant: MAKITA CORPORATIONInventor: Yoshitaka MACHIDA
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Patent number: 9841066Abstract: In a hammer drill, a coil spring that urges a first clutch and a second clutch in directions away from each other is held between a first change plate that engages with the first clutch to be slidable in the axial direction of an intermediate shaft and a second change plate that engages with the second clutch to be slidable in the axial direction of the intermediate shaft. The first change plate is slidably guided by a gear housing.Type: GrantFiled: November 14, 2013Date of Patent: December 12, 2017Assignee: MAKITA CORPORATIONInventors: Kiyonobu Yoshikane, Kenji Shibata, Yoshitaka Machida
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Publication number: 20170335582Abstract: A rebar tying tool configured to tie plural rebars using a wire is disclosed herein. The rebar tying tool may include a reel supporting mechanism configured to switch between a first state of detachably supporting a reel on which the wire is wound and a second state of undetachably supporting the reel; a wire feeding mechanism configured to feed the wire from the reel; and an openable cover that at least partially covers at least one of the reel supporting mechanism and the wire feeding mechanism. The reel supporting mechanism may switch from the first state to the second state by a user operation of closing the cover, and/or may switch from the second state to the first state by a user operation of opening the cover.Type: ApplicationFiled: May 12, 2017Publication date: November 23, 2017Applicant: MAKITA CORPORATIONInventors: Yoshitaka MACHIDA, Tadasuke MATSUNO
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Patent number: 9815185Abstract: A hammer drill (101) comprises a main body (103) which houses a driving motor (110) and a driving mechanism and a handle (109) which is movable to the main body (103). Further, a coil spring (160) which biases the handle (109) is provided. In a state that the coil spring (160) biases the handle (109), the handle (109) is moved against the main body (103) in a longitudinal direction of a hammer bit (119) and vibration transmission from the main body (103) to the handle (109) is prevented.Type: GrantFiled: November 26, 2014Date of Patent: November 14, 2017Assignee: MAKITA CORPORATIONInventor: Yoshitaka Machida
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Publication number: 20170320206Abstract: An impact tool has a body and a striking mechanism that drives a tool accessory in a prescribed longitudinal direction. The body has a first body element on which the striking mechanism is provided, and a second body element. The first body element and the second body element are connected via a cushioning mechanism. A vibration reducing mechanism is provided on the first body element.Type: ApplicationFiled: November 11, 2015Publication date: November 9, 2017Applicant: MAKITA CORPORATIONInventors: Yoshitaka MACHIDA, Kiyonobu YOSHIKANE
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Patent number: 9782885Abstract: Reciprocating power tool is provided which is improved in vibration isolation of the handle. The reciprocating power tool has a tool body and a handle connected to the tool body. When an axial direction of a tool bit is defined as a longitudinal direction, the handle extends in a vertical direction crossing the longitudinal direction. Further, an upper region of the handle is connected to the tool body via an elastic member and a lower region of the handle is connected to the tool body via a support shaft that it can rotate around an axis of the support shaft in a transverse direction crossing both the longitudinal direction and the vertical direction with respect to the tool body. When the handle rotates around the support shaft with respect to the tool body, the elastic member reduces vibration which is caused in the tool body and transmitted to the handle.Type: GrantFiled: May 27, 2014Date of Patent: October 10, 2017Assignee: MAKITA CORPORATIONInventors: Kiyonobu Yoshikane, Yoshitaka Machida