Patents by Inventor Hajime Fukushima
Hajime Fukushima 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: 20210149210Abstract: An image shake correction device includes a movement restrictor that restricts movement of a movable member in directions X, Y, ?, and Z. The movement restrictor includes a movement prevention member that is fixed to a base of a support member and prevents the movable member from moving in the direction Z while sandwiching the movable member in cooperation with the support member, a hole portion formed in the support member, and an insertion member that is formed in the movable member and is inserted into the hole portion. A wide width portion of the insertion member has a size that overlaps with the base of the support member even in a state in which an abutting portion of the insertion member is positioned in any position in the hole portion.Type: ApplicationFiled: January 26, 2021Publication date: May 20, 2021Applicant: FUJIFILM CorporationInventors: Hajime FUKUSHIMA, Shinji OTSUKA, Kouhei AWAZU
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Patent number: 11009067Abstract: An object is to provide a mounting structure of a bearing member which enables size and weight reduction of entire apparatus and also contributes to cost reduction thereof. The mounting structure of a bearing member includes: a bearing member for supporting a rotary shaft; a case member to which the bearing member is mounted; and a mounting plate for clamping the bearing member in an axial direction of the rotary shaft in conjunction with the case member, wherein the mounting plate includes a mounting portion of a counter member which is mounted to the case member and clamps the case member in the axial direction in conjunction with the counter member.Type: GrantFiled: February 19, 2018Date of Patent: May 18, 2021Assignee: THK CO., LTD.Inventors: Jun Hirota, Junichi Iguchi, Hajime Fukushima
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Publication number: 20210088805Abstract: An image shake correction device includes: a movable member; an imager that is fixed to the movable member; a support member that supports the movable member to be movable; and two movement restrictors that restrict a movement range of the movable member, each of the two movement restrictors includes a recess portion or a through-hole and an insertion member as defined herein, a shape of the recess portion or the through-hole is as defined herein, and a second diagonal line overlaps an extension line of a first diagonal line and the center of the light receiving surface overlaps a line connecting the first diagonal line and the second diagonal line as defined herein.Type: ApplicationFiled: December 9, 2020Publication date: March 25, 2021Applicant: FUJIFILM CorporationInventors: Kouhei AWAZU, Hajime FUKUSHIMA
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Patent number: 10884259Abstract: An image shake correction device includes: a movable member; an imager that is fixed to the movable member; a support member that supports the movable member to be movable in a direction along a circumferential direction of a circle whose center is a center of a light receiving surface of the imager; and two movement restrictors that restrict a movement range of the movable member, each of the two movement restrictors includes a recess portion or a through-hole and an insertion member as defined herein, a shape of the recess portion or the through-hole is as defined herein, and a second diagonal line overlaps an extension line of a first diagonal line and the center of the light receiving surface overlaps a line connecting the first diagonal line and the second diagonal line as defined herein.Type: GrantFiled: March 26, 2020Date of Patent: January 5, 2021Assignee: FUJIFILM CorporationInventors: Kouhei Awazu, Hajime Fukushima
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Patent number: 10863093Abstract: An image shake correction device (3) includes a movable member (2), a support member (1) including a movement prevention member (1B, 1C) for preventing the movable member (2) from being lifted, and a movement restriction unit that restricts a movement range of the movable member (2). The movement restriction unit includes a hole portion (11a) formed in the support member (1) and an insertion member (28a) inserted into the hole portion (11a) formed in the movable member (2). The insertion member (28a) has an abutting portion (283a) that moves in the hole portion (11a) in directions X, Y, and ? with the movement of the movable member (2), and a wide width portion (281a) which is wider than the abutting portion (283a).Type: GrantFiled: June 25, 2020Date of Patent: December 8, 2020Assignee: FUJIFILM CorporationInventors: Hajime Fukushima, Shinji Otsuka
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Patent number: 10859895Abstract: A projector apparatus that can effectively reduce bending of a base plate supporting a lens shifting unit thereon and facilitates replacement of unit parts in the event of a failure is provided. The projector apparatus includes: a base plate attached inside a projector body; a lens supporting unit attached to the base plate and supporting a projection lens so as to be movable relative to the base plate; guiding mechanisms for guiding the lens supporting unit so as to be freely movable in a horizontal direction and a normal direction relative to the base plate; and fixing devices which fix the base plate to the projector body. The fixing devices include a plurality of first fixing devices provided at a peripheral edge of the base plate, and second fixing devices provided on an inner side of the plurality of first fixing devices.Type: GrantFiled: November 2, 2017Date of Patent: December 8, 2020Assignees: THK CO., LTD., NEC DISPLAY SOLUTIONS, LTD.Inventors: Marie Shimamura, Jun Hirota, Hajime Fukushima, Kunitaka Furuichi
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Publication number: 20200329185Abstract: An image shake correction device (3) includes a movable member (2), a support member (1) including a movement prevention member (1B, 1C) for preventing the movable member (2) from being lifted, and a movement restriction unit that restricts a movement range of the movable member (2). The movement restriction unit includes a hole portion (11a) formed in the support member (1) and an insertion member (28a) inserted into the hole portion (11a) formed in the movable member (2). The insertion member (28a) has an abutting portion (283a) that moves in the hole portion (11a) in directions X, Y, and ? with the movement of the movable member (2), and a wide width portion (281a) which is wider than the abutting portion (283a).Type: ApplicationFiled: June 25, 2020Publication date: October 15, 2020Applicant: FUJIFILM CorporationInventors: Hajime FUKUSHIMA, Shinji OTSUKA
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Patent number: 10761338Abstract: An image shake correction device includes: a base member; a lens frame that holds an image shake correction lens, and is mounted on the base member so as to be movable in a first direction and a second direction perpendicular to the first direction within a plane perpendicular to an optical axis of the image shake correction lens; a plurality of expandable and contractible mooring members that moors the lens frame to the base member such that the lens frame is able to move in the first direction and the second direction; a bracket that is supported by the base member so as to be swingable around a first axis parallel to the first direction; and a driving unit that drives the lens frame in the first direction and the second direction, as defined herein.Type: GrantFiled: May 23, 2018Date of Patent: September 1, 2020Assignee: FUJIFILM CorporationInventor: Hajime Fukushima
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Patent number: 10718927Abstract: A lens moving mechanism includes a lens mount unit on which a lens for projecting light is mounted, a lens guide unit which supports the lens mount unit and guides the lens mount unit in at least one axis direction among three orthogonal axis directions including an optical axis direction of the light, and a lens guide fixing unit to which the lens guide unit is fixed. The lens guide unit includes a plurality of linear motion guide devices each including a track body fixed to the lens guide fixing unit and a moving body moving along the track body. A plurality of track bodies are coaxially disposed in the lens guide fixing unit.Type: GrantFiled: October 26, 2017Date of Patent: July 21, 2020Assignee: THK CO., LTD.Inventors: Jun Hirota, Marie Shimamura, Hirokazu Tatsuzuki, Hajime Fukushima
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Publication number: 20200225507Abstract: An image shake correction device includes: a movable member; an imager that is fixed to the movable member; a support member that supports the movable member to be movable in a direction along a circumferential direction of a circle whose center is a center of a light receiving surface of the imager; and two movement restrictors that restrict a movement range of the movable member, each of the two movement restrictors includes a recess portion or a through-hole and an insertion member as defined herein, a shape of the recess portion or the through-hole is as defined herein, and a second diagonal line overlaps an extension line of a first diagonal line and the center of the light receiving surface overlaps a line connecting the first diagonal line and the second diagonal line as defined herein.Type: ApplicationFiled: March 26, 2020Publication date: July 16, 2020Applicant: FUJIFILM CorporationInventors: Kouhei AWAZU, Hajime FUKUSHIMA
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Publication number: 20200228710Abstract: An image shake correction device includes: a movable member; a support member that supports the movable member to be movable in a plurality of directions along a flat surface; a circuit board that is fixed to the movable member; an imager that is mounted on the circuit board; a plurality of position detectors that is fixed to a rear surface of the circuit board opposite to a surface of the circuit board on which the imager is mounted to detect a position of the movable member in a movement direction of the movable member; magnetic force generators that face the plurality of position detectors respectively and are fixed to the support member; and adjustment members that adjust distances between the magnetic force generators and the support member.Type: ApplicationFiled: March 26, 2020Publication date: July 16, 2020Applicant: FUJIFILM CorporationInventors: Kouhei AWAZU, Yasuhiro MIWA, Hajime FUKUSHIMA
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Publication number: 20200228711Abstract: An image shake correction device includes: a movable member; a support member that supports the movable member to be movable in three directions along a flat surface; an imager that is fixed to the movable member; and a first elastic member, a second elastic member, and a third elastic member as defined herein, the three directions are a first direction, a second direction and a third direction as defined herein, the movable member includes a first movable side locking portion, a second movable side locking portion and a third movable side locking portion as defined herein, the support member includes a first support side locking portion, a second support side locking portion and a third support side locking portion as defined herein, and each of first to third extension lines overlaps the center of the light receiving surface as defined herein.Type: ApplicationFiled: March 26, 2020Publication date: July 16, 2020Applicant: FUJIFILM CorporationInventors: Kouhei AWAZU, Hajime FUKUSHIMA
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Patent number: 10712528Abstract: A lens moving mechanism includes a first lens guide unit which guides a lens mount, on which a lens for projecting light is mounted, in two orthogonal axis directions among three orthogonal axis directions including an optical axis direction of the light. The first lens guide unit includes a first track rail and a second track rail which are disposed to intersect each other in the two orthogonal axis directions, and one or a plurality of slider blocks which are mounted to be relatively movable on both or either of the first track rail and the second track rail. The one or plurality of slider blocks are disposed at an intersecting portion between the first track rail and the second track rail in one axis direction orthogonal to the two orthogonal axis directions, or are disposed to at least partially overlap each other in the one axis direction.Type: GrantFiled: October 26, 2017Date of Patent: July 14, 2020Assignee: THK CO., LTD.Inventors: Jun Hirota, Marie Shimamura, Hajime Fukushima
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Patent number: 10606024Abstract: A lens moving mechanism includes a guide section which supports a lens mount unit on which a lens for projecting light is mounted and guides the lens mount unit in three orthogonal axis directions including an optical axis direction of the light, and a base member which supports a saddle guide unit of the guide section and is fixed to a projector main body. The saddle guide unit includes first linear motion guide devices which are fixed to the base member and guide the lens mount unit in an orthogonal-to-optical axis direction orthogonal to the optical axis direction.Type: GrantFiled: October 26, 2017Date of Patent: March 31, 2020Assignee: THK CO., LTD.Inventors: Jun Hirota, Marie Shimamura, Hajime Fukushima
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Publication number: 20200003255Abstract: An object is to provide a mounting structure of a bearing member which enables size and weight reduction of entire apparatus and also contributes to cost reduction thereof. The mounting structure of a bearing member includes: a bearing member for supporting a rotary shaft; a case member to which the bearing member is mounted; and a mounting plate for clamping the bearing member in an axial direction of the rotary shaft in conjunction with the case member, wherein the mounting plate includes a mounting portion of a counter member which is mounted to the case member and clamps the case member in the axial direction in conjunction with the counter member.Type: ApplicationFiled: February 19, 2018Publication date: January 2, 2020Applicant: THK CO., LTD.Inventors: Jun Hirota, Junichi Iguchi, Hajime Fukushima
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Publication number: 20190353991Abstract: A projector apparatus that can effectively reduce bending of a base plate supporting a lens shifting unit thereon and facilitates replacement of unit parts in the event of a failure is provided. The projector apparatus includes: a base plate attached inside a projector body; a lens supporting unit attached to the base plate and supporting a projection lens so as to be movable relative to the base plate; guiding mechanisms for guiding the lens supporting unit so as to be freely movable in a horizontal direction and a normal direction relative to the base plate; and fixing devices which fix the base plate to the projector body. The fixing devices include a plurality of first fixing devices provided at a peripheral edge of the base plate, and second fixing devices provided on an inner side of the plurality of first fixing devices.Type: ApplicationFiled: November 2, 2017Publication date: November 21, 2019Applicants: THK CO., LTD., NEC DISPLAY SOLUTIONS, LTD.Inventors: Marie Shimamura, Jun Hirota, Hajime Fukushima, Kunitaka Furuichi
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Publication number: 20190339483Abstract: A lens moving mechanism includes a lens mount unit on which a lens for projecting light is mounted, a lens guide unit which supports the lens mount unit and guides the lens mount unit in at least one axis direction among three orthogonal axis directions including an optical axis direction of the light, and a lens guide fixing unit to which the lens guide unit is fixed. The lens guide unit includes a plurality of linear motion guide devices each including a track body fixed to the lens guide fixing unit and a moving body moving along the track body. A plurality of track bodies are coaxially disposed in the lens guide fixing unit.Type: ApplicationFiled: October 26, 2017Publication date: November 7, 2019Applicant: THK CO., LTD.Inventors: Jun Hirota, Marie Shimamura, Hirokazu Tatsuzuki, Hajime Fukushima
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Publication number: 20190258023Abstract: A lens moving mechanism includes a first lens guide unit which guides a lens mount, on which a lens for projecting light is mounted, in two orthogonal axis directions among three orthogonal axis directions including an optical axis direction of the light. The first lens guide unit includes a first track rail and a second track rail which are disposed to intersect each other in the two orthogonal axis directions, and one or a plurality of slider blocks which are mounted to be relatively movable on both or either of the first track rail and the second track rail. The one or plurality of slider blocks are disposed at an intersecting portion between the first track rail and the second track rail in one axis direction orthogonal to the two orthogonal axis directions, or are disposed to at least partially overlap each other in the one axis direction.Type: ApplicationFiled: October 26, 2017Publication date: August 22, 2019Applicant: THK CO., LTD.Inventors: Jun Hirota, Marie Shimamura, Hajime Fukushima
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Publication number: 20190250365Abstract: A lens moving mechanism includes a guide section which supports a lens mount unit on which a lens for projecting light is mounted and guides the lens mount unit in three orthogonal axis directions including an optical axis direction of the light, and a base member which supports a saddle guide unit of the guide section and is fixed to a projector main body. The saddle guide unit includes first linear motion guide devices which are fixed to the base member and guide the lens mount unit in an orthogonal-to-optical axis direction orthogonal to the optical axis direction.Type: ApplicationFiled: October 26, 2017Publication date: August 15, 2019Applicant: THK CO., LTD.Inventors: Jun Hirota, Marie Shimamura, Hajime Fukushima
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Patent number: 10211012Abstract: The click mechanism comprises a spring made of a plate material and disposed on a rotatable plate that rotates integrally with a rotationally-manipulated shaft of an electric part; two cylindrical click pieces disposed on an outer perimeter of the rotatable plate in positions forming an angle of 180° with respect to each other so as to retractably protrude from the positions at different heights on the outer perimeter in an axial direction; and projections and depressions formed on an inner perimeter of a housing in a circumferential direction, in two upper and lower tiers in the axial direction. The projections and depressions in the two upper and lower tiers are staggered and the two click pieces are biased by the spring to be in resilient contact with the projections and depressions.Type: GrantFiled: November 13, 2017Date of Patent: February 19, 2019Assignee: TOKYO COSMOS ELECTRIC CO., LTD.Inventors: Hajime Fukushima, Taro Fukunaga