Patents by Inventor Yasufumi Yamamoto
Yasufumi Yamamoto 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: 11237597Abstract: An electronic device includes a casing and an elastic body. The casing includes: a first wall from which a display screen of a display device is exposed; a second wall that is positioned apart from the first wall in a first direction intersecting the display screen of the first wall; a third wall that extends between the first wall and the second wall; and a fourth wall that extends between the first wall and the second wall. The fourth wall intersects the third wall. The elastic body is disposed at a corner between the third wall and the fourth wall. The elastic body is provided to project out from surfaces of the first wall, the second wall, the third wall, and the fourth wall.Type: GrantFiled: July 20, 2020Date of Patent: February 1, 2022Assignee: FUJITSU CLIENT COMPUTING LIMITEDInventors: Yasufumi Yamamoto, Yoshiyuki Sando, Kenji Suzuki
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Patent number: 11201570Abstract: A vibration wave motor comprises a vibrator including a piezoelectric element and a vibrating body, a friction member including a first surface configured to come into contact with the vibrator, and a second surface, which is a surface on the opposite side of the first surface, the vibrator and the friction member moving relative to each other in a driving direction by a vibration generated by the vibrator, a supporting member configured to support the friction member on the second surface side; and a pressure member configured to bring the vibrator and the friction member into pressure contact with each other. A fixing portion configured to fix the friction member to the supporting member is provided in the friction member. The vibrator can move to a position where at least part of the vibrator and the fixing portion overlap each other in a pressure direction of the pressure member.Type: GrantFiled: March 23, 2018Date of Patent: December 14, 2021Assignee: Canon Kabushiki KaishaInventors: Hiroki Ito, Yasufumi Yamamoto
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Patent number: 11175701Abstract: An electronic device includes a base member, a coupling member, and a male screw member. The base member has a female screw and is made of synthetic resin material. The coupling member is detachably coupled to a coupling target part provided in a coupling target device. The male screw member is coupled to the female screw and fixes the coupling member to the base member.Type: GrantFiled: July 23, 2020Date of Patent: November 16, 2021Assignee: FUJITSU CLIENT COMPUTING LIMITEDInventors: Yasufumi Yamamoto, Yoshiyuki Sando, Kenji Suzuki
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Patent number: 11165368Abstract: A vibration wave motor including: a vibrator; a friction member; and a pressurizing member configured to press the vibrator and the friction member into contact with each other. The vibrator and the friction member are relatively moved in a direction orthogonal to the pressurizing direction of the pressurizing member by vibrations generated on the vibrator, the vibrator and the friction member are configured so as to move in parallel with the pressurizing direction with respect to a fixed member, and the vibration wave motor further includes at least one first restricting portion that restricts a movable amount of the friction member in the pressurizing direction and at least one second restricting portion that restricts a movable amount of the vibrator in the pressurizing direction, such that the movable amount of the friction member is smaller than the movable amount of the vibrator in the pressurizing direction.Type: GrantFiled: February 6, 2019Date of Patent: November 2, 2021Assignee: Canon Kabushiki KaishaInventors: Ryo Yamasaki, Yasufumi Yamamoto, Shunsuke Ninomiya, Mai Nakabayashi
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Publication number: 20210305913Abstract: A vibration wave motor includes a vibrator including a piezoelectric element and a vibratory plate, a friction member configured to make a frictional contact with the vibrator, a pressurizer configured to press the vibrator and the friction member against each other, and a guide unit configured to guide a relative movement between the vibrator and the friction member. The guide unit includes a plurality of rollers configured to move relative to the pressurizer, and a guide member that includes a guide portion, the guide portion being configured to extend along a relative movement direction between the vibrator and the friction member and to guide the plurality of rollers. The guide member includes a reinforcer configured to extend along the relative movement direction near a roller closest to a center position of a pressing force by the pressurizer.Type: ApplicationFiled: March 23, 2021Publication date: September 30, 2021Inventor: Yasufumi Yamamoto
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Publication number: 20210089087Abstract: An electronic device includes a casing and an elastic body. The casing includes: a first wall from which a display screen of a display device is exposed; a second wall that is positioned apart from the first wall in a first direction intersecting the display screen of the first wall; a third wall that extends between the first wall and the second wall; and a fourth wall that extends between the first wall and the second wall. The fourth wall intersects the third wall. The elastic body is disposed at a corner between the third wall and the fourth wall. The elastic body is provided to project out from surfaces of the first wall, the second wall, the third wall, and the fourth wall.Type: ApplicationFiled: July 20, 2020Publication date: March 25, 2021Applicant: FUJITSU CLIENT COMPUTING LIMITEDInventors: Yasufumi Yamamoto, Yoshiyuki Sando, Kenji Suzuki
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Publication number: 20210091452Abstract: An electronic device includes a casing, an antenna, a plurality of screw members, and a board. The casing includes: a first cover including a first wall from which a display screen of a display device is exposed; and a second cover overlapping with the first cover in a first direction intersecting with the display screen. The antenna is provided between the first cover and the second cover. The screw members connect the first cover and the second cover. The board is provided, on an opposite side of the antenna, away from one of the screw members that is closest to the antenna. The board is provided without being fastened along with the first cover and the second cover by the one of the screw members.Type: ApplicationFiled: July 21, 2020Publication date: March 25, 2021Applicant: FUJITSU CLIENT COMPUTING LIMITEDInventors: Yoshiyuki Sando, Yasufumi Yamamoto, Kenji Suzuki
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Publication number: 20210084134Abstract: An electronic device includes a support member, a male screw member, a first component, and a female screw. The support member includes a first surface facing in a first direction and a second surface facing in the first direction. The male screw member includes a head portion positioned in the first direction with respect to the first surface and the second surface and spaced apart from the first surface and the second surface and a shaft portion extending from the head portion in a direction opposite to the first direction. The first component is sandwiched between the head portion and the first surface. The female screw is joined to the shaft portion and fixes the male screw member to the support member. The first surface and the second surface are at different positions in the first direction and in the circumferential direction of the shaft portion.Type: ApplicationFiled: July 15, 2020Publication date: March 18, 2021Applicant: FUJITSU CLIENT COMPUTING LIMITEDInventors: Kenji Suzuki, Yoshiyuki Sando, Yasufumi Yamamoto
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Publication number: 20210072798Abstract: An electronic device includes a base member, a coupling member, and a male screw member. The base member has a female screw and is made of synthetic resin material. The coupling member is detachably coupled to a coupling target part provided in a coupling target device. The male screw member is coupled to the female screw and fixes the coupling member to the base member.Type: ApplicationFiled: July 23, 2020Publication date: March 11, 2021Applicant: FUJITSU CLIENT COMPUTING LIMITEDInventors: Yasufumi Yamamoto, Yoshiyuki Sando, Kenji Suzuki
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Publication number: 20200403139Abstract: A vibration wave motor includes a vibrator including a piezoelectric device and a vibration plate, and a friction member, wherein the vibrator and the friction member are pressurized to contact each other, and the vibrator is vibrated by the piezoelectric device to be moved relative to the friction member. The motor further includes a guide member that guides relative movement between the vibrator and the friction member, a fixing member that fixes the guide member at a first position and a second position in a direction of the relative movement between the vibrator and the friction member, and an attenuation member held between the friction member and the guide member in a pressure direction in which the vibrator and the friction member are pressurized to contact each other at a location between the first position and the second position.Type: ApplicationFiled: June 17, 2020Publication date: December 24, 2020Inventor: Yasufumi Yamamoto
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Patent number: 10763763Abstract: A motor includes a pressing member pressing a vibrator onto a contacting member, first and second holding members respectively holding the vibrator and a transmission member, which transmits pressing force by the pressing member to the vibrator, and a coupling member coupling the first and second holding members. The vibrator and the contacting member move by vibrations occurring in the vibrator. The coupling member includes a rolling member moving the first and second holding members in a pressing direction of the pressing member, and an urging member, which is held by the second holding member, urging the first and second holding members in parallel with a moving direction of the vibrator and the contacting member. The rolling member is sandwiched between the first and second holding members, and abuts against the first holding member on a center side of the vibrator in the moving direction.Type: GrantFiled: April 25, 2017Date of Patent: September 1, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Shinsuke Yoshida, Yasufumi Yamamoto
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Publication number: 20200136528Abstract: Provided is a vibration wave motor including: a vibrator; a friction member configured to be brought into frictional contact with the vibrator; a first holding member holding the vibrator; a second holding member holding the first holding member; and a third holding member holding the second holding member, wherein the vibrator and the friction member move relative to each other, and wherein one side of the second holding member is configured to connect to the first holding member or the third holding member at a position where the second holding member overlaps the rectangular shape portion in a direction of the relative movement, and another side of the second holding member is configured to connect to the first holding member or the third holding member at a position where the second holding member overlaps the rectangular shape portion in a direction perpendicular to the direction of the relative movement.Type: ApplicationFiled: October 24, 2019Publication date: April 30, 2020Inventors: Yasufumi Yamamoto, Makoto Oikawa, Ryo Abe
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Publication number: 20200110244Abstract: Provided is a vibration wave motor including: a vibrator; a friction member; a pressurizing mechanism; a first holding mechanism; and a second holding mechanism, wherein the vibrator and the friction member are configured to perform relative movement with respect to each other, wherein the first holding mechanism includes a first holding portion and a second holding portion which is longer than the first holding portion in a direction of the relative movement, wherein the friction member is arranged between the first holding portion and the second holding portion, wherein the first holding portion includes a first restriction portion, wherein the second holding portion includes a second restriction portion, and wherein the first restriction portion and the second restriction portion are brought into abutment against the second holding mechanism to restrict movement in directions other than the direction of the relative movement of the vibrator and the first holding mechanism.Type: ApplicationFiled: October 2, 2019Publication date: April 9, 2020Inventors: Ryo Abe, Makoto Oikawa, Yasufumi Yamamoto
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Patent number: 10581346Abstract: A motor capable of holding a vibrator without increasing a dimension thereof in a traveling direction (driving direction) and without having looseness. The motor includes a vibrator and a holding unit that holds the vibrator, and moves the vibrator and a sliding member in frictional contact with the vibrator relative to each other by vibrating the vibrator. A pressurizing unit pressurizes the vibrator against the friction member, and holding springs generate a holding force for causing the holding unit to hold the vibrator. The holding unit is not disposed between the pressurizing unit and the vibrator. A holding direction of the holding force generated by the holding springs and a pressurizing direction of a pressurizing force generated by the pressurizing unit are substantially parallel to each other.Type: GrantFiled: October 5, 2017Date of Patent: March 3, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Yasufumi Yamamoto, Toshiyuki Uehara
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Publication number: 20190348928Abstract: A driving device includes a vibrator; a friction member; a first guide portion that guides the vibrator or the friction member in a first direction when the vibrator vibrates so that the vibrator and the friction member move relative to each other, the first guide portion enabling rotation of the vibrator and the friction member around an axis in the first direction; a moving member that moves when the vibrator and the friction member move relative to each other, the moving member being connected to the member to be driven; and a second guide portion that guides the member to be driven in a second direction when the moving member moves. The moving member is connected to the member to be driven such that the moving member is rotatable and movable in a direction orthogonal to the first direction with respect to the member to be driven.Type: ApplicationFiled: July 24, 2019Publication date: November 14, 2019Inventors: Yasufumi Yamamoto, Ryo Yamasaki, Shunsuke Ninomiya, Mai Nakabayashi
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Patent number: 10444426Abstract: A front cover and a rear cover are engaged to form an internal space. An LED is mounted on a main board, and it is laid over an antenna within the space in a thickness direction of the front cover and the rear cover that are engaged. A light guiding member is provided on the side surface of the front cover and the rear cover that are engaged, and it receives the light, generated by the LED, and emits light to outside. A side shielding member and a back shielding member protrude from the front cover toward the optical path between the LED and the light guiding member so as to shield the optical path from the LED toward the light guiding member.Type: GrantFiled: August 17, 2016Date of Patent: October 15, 2019Assignee: Fujitsu Client Computing LimitedInventors: Goki Yamaguchi, Yoshiyuki Sando, Yasufumi Yamamoto
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Publication number: 20190245460Abstract: A vibration wave motor including: a vibrator; a friction member; and a pressurizing member configured to press the vibrator and the friction member into contact with each other. The vibrator and the friction member are relatively moved in a direction orthogonal to the pressurizing direction of the pressurizing member by vibrations generated on the vibrator, the vibrator and the friction member are configured so as to move in parallel with the pressurizing direction with respect to a fixed member, and the vibration wave motor further includes at least one first restricting portion that restricts a movable amount of the friction member in the pressurizing direction and at least one second restricting portion that restricts a movable amount of the vibrator in the pressurizing direction, such that the movable amount of the friction member is smaller than the movable amount of the vibrator in the pressurizing direction.Type: ApplicationFiled: February 6, 2019Publication date: August 8, 2019Inventors: Ryo Yamasaki, Yasufumi Yamamoto, Shunsuke Ninomiya, Mai Nakabayashi
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Publication number: 20190181777Abstract: A vibration wave motor including: a vibrator; a first holding member configured to hold the vibrator; a second holding member; an elastic coupling member configured to couple the first holding member and the second holding member to each other; a friction member; and a pressurizing unit, wherein the vibrator and the friction member relatively move due to vibration of the vibrator, wherein the elastic coupling member includes a first coupling portion and a second coupling portion, and wherein one of the first coupling portion and the second coupling portion is arranged on a straight line that is parallel to a direction of the relative movement and passes through a pressurizing gravity center and another of the first coupling portion and the second coupling portion is arranged on a straight line that is orthogonal to the direction of the relative movement and passes through the pressurizing gravity center.Type: ApplicationFiled: December 7, 2018Publication date: June 13, 2019Inventors: Mai Nakabayashi, Ryo Yamasaki, Yasufumi Yamamoto, Shunsuke Ninomiya
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Publication number: 20190165697Abstract: A vibration type motor includes first and second vibrators, a friction member configured to contact the first and second vibrators, a pressure member configured to press the first and second vibrators against the friction member, and first and second guide members configured to guide a relative movement between the first and second vibrators and the friction member. The first and second vibrators are spaced in a direction different from a relative movement direction between the first and second vibrators and the friction member. The first and the second guide member are provided between the first vibrator and the second vibrator in a direction different from the relative movement direction. A pressure center of a pressure applied to the first vibrator and the second vibrator by the pressure member is located between the first guide member and the second guide member.Type: ApplicationFiled: November 21, 2018Publication date: May 30, 2019Inventors: Shunsuke Ninomiya, Ryo Yamasaki, Yasufumi Yamamoto, Mai Nakabayashi
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Patent number: 10158744Abstract: A terminal device includes a support component including first and second support parts that are laterally symmetrically arranged with respect to a center axis and each locks a strap; and a case including a first wall part, a second wall part provided continuous with the first wall part at one end portion of the first wall part and a third wall part provided continuous with the first wall part at the other end portion of the first wall part, each of the first, second and third wall parts including respective opening parts through which the strap pass, wherein the support component is mounted to each of a first corner part formed with the first and second wall parts and a second corner part formed with the first and third wall parts, and at least one of the first and second support parts is exposed from each of the opening parts.Type: GrantFiled: August 18, 2017Date of Patent: December 18, 2018Inventors: Kenji Suzuki, Yasufumi Yamamoto, Yoshiyuki Sando