Patents by Inventor Yasutoshi Shinma
Yasutoshi Shinma 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: 11564545Abstract: A self-propelled, dust-collecting robot includes a main-body part including a dust collection box, and a first battery pack, which has a case, at least one battery cell in the case, a control circuit board having a controller mounted in the case, and a discharge terminal. The main body part includes a first battery pack mount having a connector to which the first battery pack is removably connectable. The first battery pack is configured for use in an electric power tool.Type: GrantFiled: May 28, 2019Date of Patent: January 31, 2023Assignee: MAKITA CORPORATIONInventors: Kentaro Koura, Yasutoshi Shinma
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Patent number: 11311157Abstract: An electric motor serving as a drive source of a dust collection mechanism 20 is arranged such that a motor axis line of the electric motor is tilted with respect to a base portion of a main body case. Because of this configuration, a main body is made to be compact in the front-to-rear direction, in comparison to a configuration where the motor axis line of the electric motor is disposed parallel to the base portion.Type: GrantFiled: July 1, 2019Date of Patent: April 26, 2022Assignee: MAKITA CORPORATIONInventors: Yasutoshi Shinma, Akinori Ito
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Publication number: 20200214517Abstract: A main unit and a hose of a cleaner may be connected via a connecting portion constituted by a ball joint. The hose may be wound around a hose holding portion and stored at a front end storage so that it can be held to the main unit in a compact manner.Type: ApplicationFiled: July 18, 2018Publication date: July 9, 2020Applicant: MAKITA CORPORATIONInventors: Akinori ITO, Yasutoshi SHINMA
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Patent number: 10588475Abstract: A self-propelled dust-collecting robot includes a main body having wheels, a dust-collecting unit collecting dust on a floor surface, infrared sensors each including an infrared transmission element that emits infrared light toward the floor surface and an infrared reception element that receives the infrared light reflected at the floor surface, and a controller controlling the wheels on the basis of a reflectance of the infrared light obtained from each infrared sensor. The controller, during running, determines whether the reflectance is higher than or equal to a predetermined threshold value. Upon determining that the reflectance is higher than or equal to the threshold value, the controller controls the wheels to perform an avoidance action with the position where the reflectance is detected being a virtual wall, thereby to control the self-propelled dust-collecting robot to perform cleaning within a cleaning range defined by a reflection member.Type: GrantFiled: September 27, 2016Date of Patent: March 17, 2020Assignee: MAKITA CORPORATIONInventors: Kentaro Koura, Yasutoshi Shinma
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Publication number: 20200000299Abstract: An electric motor serving as a drive source of a dust collection mechanism 20 is arranged such that a motor axis line of the electric motor is tilted with respect to a base portion of a main body case. Because of this configuration, a main body is made to be compact in the front-to-rear direction, in comparison to a configuration where the motor axis line of the electric motor is disposed parallel to the base portion.Type: ApplicationFiled: July 1, 2019Publication date: January 2, 2020Applicant: MAKITA CORPORATIONInventors: Yasutoshi SHINMA, Akinori ITO
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Patent number: 10463219Abstract: A self-propelled, dust-collecting robot includes a chassis, an electric motor supported by the chassis, and first and second rechargeable battery packs disposed inside the chassis for supplying current to the electric motor. First and second castors are respectively disposed immediately underneath the first and second battery packs. Each of the battery packs has a pair of rails that respectively slide into and engage with complementary guide rails coupled to the chassis. A dust-collection box is removably disposed within the chassis. A dust-collection motor rotates a suction fan that is in fluid communication with the dust-collection box. At least one rotatable brush sweeps dust towards a suction port in fluid communication with the dust-collection box.Type: GrantFiled: August 27, 2015Date of Patent: November 5, 2019Assignee: MAKITA CORPORATIONInventors: Kentaro Koura, Yasutoshi Shinma
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Publication number: 20190274507Abstract: A self-propelled, dust-collecting robot includes a main-body part including a dust collection box, and a first battery pack, which has a case, at least one battery cell in the case, a control circuit board having a controller mounted in the case, and a discharge terminal. The main body part includes a first battery pack mount having a connector to which the first battery pack is removably connectable. The first battery pack is configured for use in an electric power tool.Type: ApplicationFiled: May 28, 2019Publication date: September 12, 2019Applicant: Makita CorporationInventors: Kentaro KOURA, Yasutoshi SHINMA
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Publication number: 20190166928Abstract: A ventilation apparatus is mountable on a garment, such as a jacket. The ventilation apparatus includes a fan that is rotationally driven by a motor and is housed in a main body that includes intake ports and exhaust ports. The motor may be a brushless motor. In addition or in the alternative, a main body of the motor may be shorter than blades of a fan mounted on a drive shaft of the motor.Type: ApplicationFiled: July 28, 2017Publication date: June 6, 2019Inventors: Masao MIWA, Yasutoshi SHINMA, Kentaro KOURA, Yasushi OGURA
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Publication number: 20170112344Abstract: A self-propelled dust-collecting robot includes a main body having wheels, a dust-collecting unit collecting dust on a floor surface, infrared sensors each including an infrared transmission element that emits infrared light toward the floor surface and an infrared reception element that receives the infrared light reflected at the floor surface, and a controller controlling the wheels on the basis of a reflectance of the infrared light obtained from each infrared sensor. The controller, during running, determines whether the reflectance is higher than or equal to a predetermined threshold value. Upon determining that the reflectance is higher than or equal to the threshold value, the controller controls the wheels to perform an avoidance action with the position where the reflectance is detected being a virtual wall, thereby to control the self-propelled dust-collecting robot to perform cleaning within a cleaning range defined by a reflection member.Type: ApplicationFiled: September 27, 2016Publication date: April 27, 2017Applicant: MAKITA CORPORATIONInventors: Kentaro KOURA, Yasutoshi SHINMA
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Publication number: 20160095487Abstract: A self-propelled, dust-collecting robot includes a chassis, an electric motor supported by the chassis, and first and second rechargeable battery packs disposed inside the chassis for supplying current to the electric motor. First and second castors are respectively disposed immediately underneath the first and second battery packs. Each of the battery packs has a pair of rails that respectively slide into and engage with complementary guide rails coupled to the chassis. A dust-collection box is removably disposed within the chassis. A dust-collection motor rotates a suction fan that is in fluid communication with the dust-collection box. At least one rotatable brush sweeps dust towards a suction port in fluid communication with the dust-collection box.Type: ApplicationFiled: August 27, 2015Publication date: April 7, 2016Inventors: Kentaro KOURA, Yasutoshi SHINMA
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Patent number: 9126320Abstract: A working tool in which a tip tool with a longitudinal shaft is linearly moved, wherein a motor and other tool constituting members are effectively cooled. In order to cool the inside of a motor-driven hammer comprising a main body, a motor, and a motion converter, the hammer is provided with a first cooling air passage through which a cooling air is supplied to the motor, and a second cooling air passage through which a cooling air is supplied to a hammer portion. To generate a cooling air to be supplied to the first and second cooling air passages, a cooling fan is provided at a lower portion of an output shaft of the motor and a hammer portion cooling fan is provided between the output shaft of the motor and the motion converter.Type: GrantFiled: December 8, 2009Date of Patent: September 8, 2015Assignee: MAKITA CORPORATIONInventors: Yasutoshi Shinma, Yasuhiro Kakiuchi
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Patent number: 8087474Abstract: A hammer drill having a clutch pin and a clutch mechanism is provided. By switching the clutch mechanism, a selection can be made between a hammer drill mode and a hammer mode. The clutch pin is configured to be slidable to a sliding position where the clutch pin runs through the reduction shaft so as to be capable of protruding beyond the reduction shaft, and at the sliding position, the clutch pin engages with an engagement hole provided on the tool holder side so that a rotation of the tool holder can be locked, whereby in the hammer mode, a selection can be further made between a neutral state where the clutch pin does not engage with the engagement hole and a rotation locked state where the clutch pin engages with the engagement hole.Type: GrantFiled: February 22, 2008Date of Patent: January 3, 2012Assignee: Makita CorporationInventors: Yasutoshi Shinma, Keiji Nakashima, Hajime Takeuchi
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Publication number: 20110308828Abstract: A working tool in which a tip tool with a longitudinal shaft is linearly moved, wherein a motor and other tool constituting members are effectively cooled. In order to cool the inside of a motor-driven hammer comprising a main body, a motor, and a motion converter, the hammer is provided with a first cooling air passage through which a cooling air is supplied to the motor, and a second cooling air passage through which a cooling air is supplied to a hammer portion. To generate a cooling air to be supplied to the first and second cooling air passages, a cooling fan is provided at a lower portion of an output shaft of the motor and a hammer portion cooling fan is provided between the output shaft of the motor and the motion converter.Type: ApplicationFiled: December 8, 2009Publication date: December 22, 2011Applicant: MAKITA CORPORATIONInventors: Yasutoshi Shinma, Yasuhiro Kakiuchi
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Patent number: 8032990Abstract: A handle for a tool includes a handle body, an operation device and a pair of clamp halves. The operation device has an operation member operable by an operator. At least one of the clamp halves can move relative to the handle body along an axis. As the operation member is operated, the one of the handle halves moves along the axis, so that the distance between the handle halves can be changed for clamping or releasing a portion of the tool.Type: GrantFiled: March 26, 2008Date of Patent: October 11, 2011Assignee: Makita CorporationInventors: Yasutoshi Shinma, Keiji Nakashima, Hajime Takeuchi
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Publication number: 20100096154Abstract: Mode switching is reliably performed with a durable and small-sized configuration. A clutch pin (40) is provided in a reduction shaft (34) and configured to be slidable by an operation from outside, and a driven gear (38) is inserted onto the reduction shaft (34) and configured to be rotatable separately from the reduction shaft (34), so that a clutch mechanism is provided. By switching the clutch mechanism, a selection can be made between a hammer drill mode and a hammer mode.Type: ApplicationFiled: February 22, 2008Publication date: April 22, 2010Applicant: MAKITA CORPORATIONInventors: Yasutoshi Shinma, Keiji Nakashima, Hajime Takeuchi
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Publication number: 20090000434Abstract: A handle for a tool includes a handle body, an operation device and a pair of clamp halves. The operation device has an operation member operable by an operator. At least one of the clamp halves can move relative to the handle body along an axis. As the operation member is operated, the one of the handle halves moves along the axis, so that the distance between the handle halves can be changed for clamping or releasing a portion of the tool.Type: ApplicationFiled: March 26, 2008Publication date: January 1, 2009Applicant: MAKITA CORPORATIONInventors: Yasutoshi Shinma, Keiji Nakashima, Hajime Takeuchi
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Patent number: 5775440Abstract: A hammer drill has an aluminum cylinder non-rotatably mounted in a crank housing, a synthetic resin slide sleeve, and a tool holder. The latter two members are coaxially fitted over the front part of the cylinder. The slide sleeve is a cylindrical member slidably mounted between a large bore portion of the tool holder and the cylinder. A steel ring is mounted at the rear of the slide sleeve. The slide sleeve and the steel ring are urged in the forward direction by a compression spring interposed between a bevel gear and the steel ring. A first air chamber which is formed in the cylinder includes a plurality of air ports which are covered by the steel ring when the slide sleeve and steel ring are pushed in their respective rear positions by pressing a tool bit attached to the hammer against a work piece. A plurality of wide and narrow slits are formed in the front portion of the slide sleeve while a plurality of air passage holes are also formed in the large bore portion of the tool holder.Type: GrantFiled: August 14, 1996Date of Patent: July 7, 1998Assignee: Makita CorporationInventor: Yasutoshi Shinma
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Patent number: D525849Type: GrantFiled: April 25, 2005Date of Patent: August 1, 2006Inventors: Naohiro Hayakawa, Yasutoshi Shinma, Junichi Iwakami
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Patent number: D526179Type: GrantFiled: December 14, 2004Date of Patent: August 8, 2006Assignee: Makita CorporationInventors: Naohiro Hayakawa, Yasutoshi Shinma, Junichi Iwakami
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Patent number: D531474Type: GrantFiled: April 25, 2005Date of Patent: November 7, 2006Assignee: Makita CorporationInventors: Naohiro Hayakawa, Yasutoshi Shinma, Junichi Iwakami