Patents by Inventor Atsushi Muramatsu
Atsushi Muramatsu 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: 10753137Abstract: A window regulator includes a guide rail fixed to a vehicle door panel and a slider base that supports a window glass and is slidably supported in a longitudinal direction of the guide rail along sliding surfaces on a front and a back of the guide rail. The guide rail includes a sliding portion that has a first sliding surface and a second sliding surface that face one direction and another direction in a vehicle inner-outer direction. The slider base includes a grease injection portion that includes an injection space and a grease receiving portion. The injection space opens to the vehicle inner-outer direction. The first sliding surface of the guide rail is positioned inside the injection space. The grease receiving portion is positioned opposed to the second sliding surface of the guide rail. The grease receiving portion receives a grease injected in the injection space.Type: GrantFiled: March 21, 2017Date of Patent: August 25, 2020Assignee: SHIROKI CORPORATIONInventors: Atsushi Muramatsu, Kenji Yamamoto, Yoshiki Sugita
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Patent number: 10711502Abstract: A wire type window regulator includes a guide rail, a wire driving mechanism, and a wire guide member. The guide rail guides a slider base to freely move up and down. A window glass is fixed to the slider base. The wire driving mechanism moves the slider base up/down along the guide rail via a drive wire. The wire guide member is disposed on at least one of an upper end and a lower end of the guide rail. The wire guide member changes a routing direction of the drive wire wound around the wire guide member. The wire guide member supports a fixing member that is inserted through the guide rail and that fixes the guide rail and the wire guide member to the vehicle door panel.Type: GrantFiled: March 21, 2017Date of Patent: July 14, 2020Assignee: SHIROKI CORPORATIONInventors: Kazuya Yokoyama, Atsushi Muramatsu, Kenji Yamamoto, Kenichi Suzuki
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Patent number: 10626962Abstract: A drive device includes a drum housing rotatably supports a drum, allows an outer tube end to be inserted into an outer tube connecting portion and allows a wire to pass through a wire passage portion, and a drive member rotates the drum. An anti-deflection portion limits deflection of the wire and is formed on the drum housing/drive member. The anti-deflection portion includes a range surrounded by a line connecting one end of the formation range of the spiral groove and one end of the formation range of the insertion hole at the outer tube end connected to the outer tube connecting portion and a line connecting the other end of the spiral groove formation range and the other end of the insertion hole formation range at the end of the outer tube connected to the outer tube connecting portion, in the rotational axis direction of the drum.Type: GrantFiled: September 2, 2016Date of Patent: April 21, 2020Assignee: SHIROKI CORPORATIONInventors: Atsushi Muramatsu, Kenji Yamamoto, Kenichi Suzuki
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Patent number: 10626656Abstract: An assembling determination method and an assembling determination device for a vehicular opening-closing body driving device can determine a normal/abnormal winding of a drive wire around a spiral groove to ensure a quick and accurate action. The assembling determination method includes winding a drive wire around the spiral groove on the peripheral surface of a drive drum, wherein the drive wire drives a vehicular opening-closing body, arranging an inspection jig to face the drive drum surface via a clearance, determining that the drive wire is wound around the spiral groove in an abnormal manner when the inspection jig contacts the drive wire, and determining that the drive wire to be wound around the spiral groove in a normal manner when the inspection jig and the drive wire are contactless.Type: GrantFiled: March 21, 2017Date of Patent: April 21, 2020Assignee: SHIROKI CORPORATIONInventors: Atsushi Muramatsu, Toru Ikoma, Yoshiki Sugita, Kimihiro Kinoshita
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Publication number: 20190345962Abstract: The vehicle component fastening structure includes: a boss receptacle and a boss provided in a pair of the vehicle components, and a fastening member for fastening the boss and the boss receptacle. The boss receptacle has a through-hole penetrating in a fastening axis direction and a nipped portion provided inside the through-hole. The boss has a fastener hole, and a leading end of the boss oriented to a first direction abuts on the nipped portion. The fastening member has a shank inserted into the through-hole and the fastener hole in a second direction and a head abutting on the nipped portion. In the fastened state, a bottom face of the head abuts on the nipped portion, and the entire bottom face and a portion of the nipped portion where the leading end of the boss abuts are placed within a range of the through-hole in the fastening axis direction.Type: ApplicationFiled: May 8, 2019Publication date: November 14, 2019Applicant: SHIROKI CORPORATIONInventors: Atsushi MURAMATSU, Kenji YAMAMOTO, Kenichi Suzuki
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Patent number: 10385604Abstract: The method includes a step of fixing the other end of the drive wire to the drive drum; a step of temporarily placing one end of the drive wire in a temporary placement portion provided on the drum housing; and a step of applying tension to the drive wire by moving the one end of the drive wire to an engaging portion provided on the drive drum after canceling the placed state of the one end of the drive wire in the temporary placement portion by pulling a portion of the drive wire on the one end side thereof by winding a portion of the drive wire on the other end side thereof by the drive drum with the one end of the drive wire placed in the temporary placement portion.Type: GrantFiled: April 13, 2016Date of Patent: August 20, 2019Assignee: SHIROKI CORPORATIONInventors: Atsushi Muramatsu, Kenji Yamamoto, Kimihiro Kinoshita, Yoshiki Sugita, Kenichi Suzuki, Toru Ikoma
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Publication number: 20190228800Abstract: A method of producing a magnetic powder includes performing heat treatment on first particles that contain ferrous oxide to prepare second particles that contain ?-iron oxide.Type: ApplicationFiled: September 27, 2017Publication date: July 25, 2019Inventors: Atsushi MURAMATSU, Masafumi NAKAYA, Masaru TERAKAWA, Katsunori MAESHIMA, Minoru YAMAGA
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Patent number: 10316570Abstract: A vehicle window regulator includes a slider base supported on a guide rail; a drive wire connected to the slider base; a wire guide supported at one end of the guide rail and having a winding part, onto which the drive wire is wound, at a position offset from the guide rail in a vehicle width direction; and a driver which raises and lowers the slider base via the drive wire. The wire guide is supported by the guide rail by a retainer and a pressing portion, the retainer engaged with the guide rail, and the pressing portion being engaged with the guide rail to press the guide rail toward the other end of the guide rail. The pressing portion is formed at a position toward the other end and formed at a position offset from the retainer toward the winding part.Type: GrantFiled: May 27, 2016Date of Patent: June 11, 2019Assignee: SHIROKI CORPORATIONInventors: Atsushi Muramatsu, Kenji Yamamoto
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Publication number: 20190100953Abstract: A window regulator includes a guide rail fixed to a vehicle door panel and a slider base that supports a window glass and is slidably supported in a longitudinal direction of the guide rail along sliding surfaces on a front and a back of the guide rail. The guide rail includes a sliding portion that has a first sliding surface and a second sliding surface that face one direction and another direction in a vehicle inner-outer direction. The slider base includes a grease injection portion that includes an injection space and a grease receiving portion. The injection space opens to the vehicle inner-outer direction. The first sliding surface of the guide rail is positioned inside the injection space. The grease receiving portion is positioned opposed to the second sliding surface of the guide rail. The grease receiving portion receives a grease injected in the injection space.Type: ApplicationFiled: March 21, 2017Publication date: April 4, 2019Applicant: SHIROKI CORPORATIONInventors: Atsushi MURAMATSU, Kenji YAMAMOTO, Yoshiki SUGITA
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Publication number: 20190100954Abstract: A wire type window regulator includes a guide rail, a wire driving mechanism, and a wire guide member. The guide rail guides a slider base to freely move up and down. A window glass is fixed to the slider base. The wire driving mechanism moves the slider base up/down along the guide rail via a drive wire. The wire guide member is disposed on at least one of an upper end and a lower end of the guide rail. The wire guide member changes a routing direction of the drive wire wound around the wire guide member. The wire guide member supports a fixing member that is inserted through the guide rail and that fixes the guide rail and the wire guide member to the vehicle door panel.Type: ApplicationFiled: March 21, 2017Publication date: April 4, 2019Applicant: SHIROKI CORPORATIONInventors: Kazuya YOKOYAMA, Atsushi MURAMATSU, Kenji YAMAMOTO, Kenichi SUZUKI
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Publication number: 20190085613Abstract: A driving device for a vehicular opening-closing body that ensures stably assembling a drum housing and a motor unit without requiring high positioning accuracy is provided. One of the drum housing and the motor unit includes a plurality of boss portions projecting toward another one of the drum housing and the motor unit, and securing members for securing the drum housing and the motor unit are secured to the plurality of boss portions. The other one of the drum housing and the motor unit includes a plurality of boss receiving portions that receive the plurality of boss portions. At least one of the plurality of boss receiving portions has a reverse tapered surface that has a diameter expanded toward a corresponding boss portion. In a state where the drum housing and the motor unit are supported, a clearance is disposed between the boss portion and the reverse tapered surface.Type: ApplicationFiled: March 21, 2017Publication date: March 21, 2019Applicant: SHIROKI CORPORATIONInventors: Atsushi MURAMATSU, Yoshiki SUGITA, Toru IKOMA
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Patent number: 10232604Abstract: In a manufacturing method of a metal member according to an embodiment, the metal member having an overhang portion is molded together with hollow support members that support the overhang portion, by repeatedly forming a molding layer that is selectively melted and solidified by applying a light beam to a predetermined region of a metal powder layer spread over a pedestal. The manufacturing method includes: providing removal members on the pedestal; integrally forming the support members on the removal members; integrally forming the metal member on the support members; and removing the removal members and the support members, by twisting the removal members, from the removal members, the support members, and the metal member that are formed integrally with each other.Type: GrantFiled: September 7, 2016Date of Patent: March 19, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shigemi Shioya, Atsushi Muramatsu
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Publication number: 20190063136Abstract: A wire type window regulator for vehicle that allows easily guiding a drive wire to a wire insertion clearance of a wire guide member and/or a drum housing during assembly is obtained. A wire guide member includes a wire guide groove around which the drive wire is wound, a wire disconnection prevention portion, and an inclination guide surface. The wire disconnection prevention portion is disposed to extend from one region to another region of regions on both sides between which the wire guide groove is interposed. The wire disconnection prevention portion forms a wire insertion clearance from which the drive wire is introducible to the wire guide groove with the other region. The inclination guide surface is disposed in the other region. The inclination guide surface guides the drive wire introduced to the wire guide groove to the wire insertion clearance.Type: ApplicationFiled: March 21, 2017Publication date: February 28, 2019Applicant: SHIROKI CORPORATIONInventors: Atsushi MURAMATSU, Toru IKOMA, Yoshiki SUGITA
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Publication number: 20190048641Abstract: A vehicular opening-closing body driving device that supplies a grease to sliding portions of a drive drum and a drum housing to ensure a smooth performance while ensuring reductions of manufacturing cost, manufacturing time, and manufacturing process is provided. The vehicular opening-closing body driving device includes a drive drum, a drum housing, and sliding portions. A drive wire is wound around the drive drum. The drive wire is a wire for driving a vehicular opening-closing body. The drum housing rotatably houses and supports the drive drum. A sliding portion is disposed between a bottom surface of the drum housing and a facing surface of the drive drum. The facing surface faces the bottom surface. The drum housing includes a grease supply hole for supplying a grease to the sliding portion.Type: ApplicationFiled: March 21, 2017Publication date: February 14, 2019Applicant: Shiroki CorporationInventors: Atsushi Muramatsu, Yoshiki Sugita, Toru Ikoma, Kenichi Suzuki
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Publication number: 20190040668Abstract: An assembling determination method and an assembling determination device for a vehicular opening-closing body driving device can determine a normal/abnormal winding of a drive wire around a spiral groove to ensure a quick and accurate action. The assembling determination method includes winding a drive wire around the spiral groove on the peripheral surface of a drive drum, wherein the drive wire drives a vehicular opening-closing body, arranging an inspection jig to face the drive drum surface via a clearance, determining that the drive wire is wound around the spiral groove in an abnormal manner when the inspection jig contacts the drive wire, and determining that the drive wire to be wound around the spiral groove in a normal manner when the inspection jig and the drive wire are contactless.Type: ApplicationFiled: March 21, 2017Publication date: February 7, 2019Applicant: Shiroki CorporationInventors: Atsushi Muramatsu, Toru Ikoma, Yoshiki Sugita, Kimihiro Kinoshita
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Patent number: 10178532Abstract: A communication method using a communication system including a first communication apparatus, a second communication apparatus, and a communication management apparatus, the communication method includes acquiring, by the communication management apparatus, communication information used for the first communication apparatus to be coupled to a communication network via the second communication apparatus, from the first communication apparatus or the second communication apparatus, transmitting, by the communication management apparatus, the communication information to the first communication apparatus or the second communication apparatus, and based on the transmitted communication information, establishing communication between the first communication apparatus and the second communication apparatus by the first communication apparatus and the second communication apparatus.Type: GrantFiled: September 28, 2015Date of Patent: January 8, 2019Assignee: FUJITSU LIMITEDInventor: Atsushi Muramatsu
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Publication number: 20180337558Abstract: A power transmission circuitry transmits power wirelessly to a plurality of power reception circuitry simultaneously. The power transmission circuitry includes, a communication circuit that wirelessly receives information on receiving power of the plurality of power reception circuitry, and a transmitting power control circuit that controls transmitting power based on the information on receiving power of the plurality of power reception circuitry received by the communication circuit.Type: ApplicationFiled: May 15, 2018Publication date: November 22, 2018Applicant: FUJITSU LIMITEDInventor: Atsushi Muramatsu
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Patent number: 10111182Abstract: An apparatus for radio beacon includes: a transmission circuit configured to transmit a radio beacon signal; a detection circuit configured to detect an entrance of an obstacle into a radio space of the transmission circuit; and a control circuit configured to control the transmission circuit, based on a control value corresponding to a number of times of detection which indicates the number of times the entrance of the obstacle has been detected in a given time in the detection circuit.Type: GrantFiled: December 16, 2016Date of Patent: October 23, 2018Assignee: FUJITSU LIMITEDInventor: Atsushi Muramatsu
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Publication number: 20180209519Abstract: A drive device includes a drum housing rotatably supports a drum, allows an outer tube end to be inserted into an outer tube connecting portion and allows a wire to pass through a wire passage portion, and a drive member rotates the drum. An anti-deflection portion limits deflection of the wire and is formed on the drum housing/drive member. The anti-deflection portion includes a range surrounded by a line connecting one end of the formation range of the spiral groove and one end of the formation range of the insertion hole at the outer tube end connected to the outer tube connecting portion and a line connecting the other end of the spiral groove formation range and the other end of the insertion hole formation range at the end of the outer tube connected to the outer tube connecting portion, in the rotational axis direction of the drum.Type: ApplicationFiled: September 2, 2016Publication date: July 26, 2018Applicant: SHIROKI CORPORATIONInventors: Atsushi MURAMATSU, Kenji YAMAMOTO, Kenichi SUZUKI
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Patent number: 10030430Abstract: In a window regulator which moves a slider base, slidable along a guide rail, via a pair of wires, the slider base is configured of: a body member made of synthetic resin which is slidably supported by the guide rail and to which each wire is connected; and a support member made of metal which supports a window glass, and the support member is provided with a holding portion which holds the body member in the widthwise direction of the guide rail. This configuration makes it possible to achieve a window regulator in which the slider base is not easily warped or deformed when an external force is exerted thereon and which is superior in strength and durability.Type: GrantFiled: April 22, 2016Date of Patent: July 24, 2018Assignee: SHIROKI CORPORATIONInventors: Atsushi Muramatsu, Kenji Yamamoto, Kenichi Suzuki, Yoshiki Tanabe