Patents by Inventor Makoto Ariji
Makoto Ariji 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: 10247957Abstract: A lens drive apparatus includes a plurality of protrusions that protrude from an end of a magnet holder in a direction of an optical axis toward an inner wall surface of a cover and function as a fracture prevention supporting member. The plurality of protrusions are configured to support prevention of fracture in a plurality of suspension wires by contacting the inner wall surface of the cover when a magnet holder moves in the direction of the optical axis.Type: GrantFiled: July 16, 2018Date of Patent: April 2, 2019Assignee: MITSUMI ELECTRIC CO., LTD.Inventors: Keiichi Sato, Makoto Ariji, Masayoshi Sugawara, Akihiro Moriya
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Publication number: 20180321507Abstract: A lens drive apparatus includes a plurality of protrusions that protrude from an end of a magnet holder in a direction of an optical axis toward an inner wall surface of a cover and function as a fracture prevention supporting member. The plurality of protrusions are configured to support prevention of fracture in a plurality of suspension wires by contacting the inner wall surface of the cover when a magnet holder moves in the direction of the optical axis.Type: ApplicationFiled: July 16, 2018Publication date: November 8, 2018Applicant: MITSUMI ELECTRIC CO., LTD.Inventors: Keiichi SATO, Makoto ARIJI, Masayoshi SUGAWARA, Akihiro MORIYA
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Patent number: 10054800Abstract: A lens drive apparatus includes a damper compound that is disposed between at least one protrusion and a fixed member and that suppresses undesired resonance of an auto-focusing lens driving section in a direction of an optical axis. The at least one protrusion protrudes from a magnet holder in the direction of the optical axis toward the fixed member and is inserted into at least one hole of a leaf spring provided to the auto-focusing lens driving section.Type: GrantFiled: August 29, 2017Date of Patent: August 21, 2018Assignee: MITSUMI ELECTRIC CO., LTD.Inventors: Keiichi Sato, Makoto Ariji, Masayoshi Sugawara, Akihiro Moriya
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Patent number: 9933628Abstract: A lens driving device includes: a lens holder; a first coil wound onto the lens holder around the optical axis direction; a plurality of magnets having a first surface and a second surface perpendicular to the first surface, the magnets being disposed in a state in which the first surface opposes a circumferential surface of the first coil; a magnet holder that fixes the magnets apart from each other; a yoke constituting, together with the magnets, a magnetic circuit having a magnetic flux that traverses the first coil; a second coil provided opposite the second surface of the magnets; and a base on which the second coil is disposed. An auto-focus lens driving part that includes the lens holder, the first coil, the magnets, the magnet holder, and the yoke is held on the base so as to allow relative displacement in a direction perpendicular to the optical axis.Type: GrantFiled: February 14, 2013Date of Patent: April 3, 2018Assignee: MITSUMI ELECTRIC CO., LTD.Inventor: Makoto Ariji
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Publication number: 20170357102Abstract: A lens drive apparatus includes a damper compound that is disposed between at least one protrusion and a fixed member and that suppresses undesired resonance of an auto-focusing lens driving section in a direction of an optical axis. The at least one protrusion protrudes from a magnet holder in the direction of the optical axis toward the fixed member and is inserted into at least one hole of a leaf spring provided to the auto-focusing lens driving section.Type: ApplicationFiled: August 29, 2017Publication date: December 14, 2017Applicant: MITSUMI ELECTRIC CO., LTD.Inventors: Keiichi SATO, Makoto ARIJI, Masayoshi SUGAWARA, Akihiro MORIYA
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Patent number: 9778481Abstract: A lens drive apparatus includes an image stabilizer portion moves an auto-focusing lens driving portion in first and second directions orthogonal to an optical axis and perpendicular to each other, and the image stabilizer portion includes a fixed member disposed apart from the auto-focusing lens driving portion in a direction of the optical axis, a plurality of suspension wires each comprising an end fixed to the fixed member at an outer region thereof, a narrowing portion that is disposed between the fixed member and the auto-focusing lens driving portion and that narrows part of a gap between the fixed member and the auto-focusing lens driving portion, and a damper compound that is disposed at the narrowed part of the gap between the fixed member and the auto-focusing lens driving portion and that suppress undesired resonance in the direction of the optical axis of the auto-focusing lens driving portion.Type: GrantFiled: August 21, 2015Date of Patent: October 3, 2017Assignee: MITSUMI ELECTRIC CO., LTD.Inventors: Keiichi Sato, Makoto Ariji, Masayoshi Sugawara, Akihiro Moriya
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Patent number: 9298017Abstract: A lens holder driving device includes an auto-focusing lens holder driving portion moving a lens holder holding a lens barrel along an optical axis, and an image stabilizer portion stabilizing image blurred by moving the auto-focusing lens holder driving portion in first and second directions which are orthogonal to the optical axis and which are perpendicular to each other. The image stabilizer portion includes: a fixed portion disposed apart from the auto-focusing lens holder driving portion in the direction of the optical axis; a plurality of suspension wires having first end portions fixed to the fixed portion at outer regions thereof, extending along the optical axis, having second end portions fixed to the auto-focusing lens holder driving portion, and swingably supporting the auto-focusing lens holder driving portion in the first direction and the second direction; and a fracture preventing member preventing the suspension wires from fracturing.Type: GrantFiled: April 29, 2015Date of Patent: March 29, 2016Assignee: Mitsumi Electric Co., Ltd.Inventors: Masayoshi Sugawara, Akihiro Moriya, Keiichi Sato, Makoto Ariji, Satoshi Ajiki
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Publication number: 20160025995Abstract: A lens driving device includes: a lens holder; a first coil wound onto the lens holder around the optical axis direction; a plurality of magnets having a first surface and a second surface perpendicular to the first surface, the magnets being disposed in a state in which the first surface opposes a circumferential surface of the first coil; a magnet holder that fixes the magnets apart from each other; a yoke constituting, together with the magnets, a magnetic circuit having a magnetic flux that traverses the first coil; a second coil provided opposite the second surface of the magnets; and a base on which the second coil is disposed. An auto-focus lens driving part that includes the lens holder, the first coil, the magnets, the magnet holder, and the yoke is held on the base so as to allow relative displacement in a direction perpendicular to the optical axis.Type: ApplicationFiled: February 14, 2013Publication date: January 28, 2016Applicant: MITSUMI ELECTRIC CO., LTD.Inventor: Makoto ARIJI
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Publication number: 20150355477Abstract: A lens drive apparatus includes an image stabilizer portion moves an auto-focusing lens driving portion in first and second directions orthogonal to an optical axis and perpendicular to each other, and the image stabilizer portion includes a fixed member disposed apart from the auto-focusing lens driving portion in a direction of the optical axis, a plurality of suspension wires each comprising an end fixed to the fixed member at an outer region thereof, a narrowing portion that is disposed between the fixed member and the auto-focusing lens driving portion and that narrows part of a gap between the fixed member and the auto-focusing lens driving portion, and a damper compound that is disposed at the narrowed part of the gap between the fixed member and the auto-focusing lens driving portion and that suppress undesired resonance in the direction of the optical axis of the auto-focusing lens driving portion.Type: ApplicationFiled: August 21, 2015Publication date: December 10, 2015Inventors: Keiichi SATO, Makoto ARIJI, Masayoshi SUGAWARA, Akihiro MORIYA
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Publication number: 20150309330Abstract: A lens holder driving device includes an auto-focusing lens holder driving portion moving a lens holder holding a lens barrel along an optical axis, and an image stabilizer portion stabilizing image blurred by moving the auto-focusing lens holder driving portion in first and second directions which are orthogonal to the optical axis and which are perpendicular to each other. The image stabilizer portion includes: a fixed portion disposed apart from the auto-focusing lens holder driving portion in the direction of the optical axis; a plurality of suspension wires having first end portions fixed to the fixed portion at outer regions thereof, extending along the optical axis, having second end portions fixed to the auto-focusing lens holder driving portion, and swingably supporting the auto-focusing lens holder driving portion in the first direction and the second direction; and a fracture preventing member preventing the suspension wires from fracturing.Type: ApplicationFiled: April 29, 2015Publication date: October 29, 2015Inventors: Masayoshi SUGAWARA, Akihiro MORIYA, Keiichi SATO, Makoto ARIJI, Satoshi AJIKI
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Patent number: 9151963Abstract: A lens holder driving device includes a lens holder moving portion, a fixed member, suspension wires, and a damper compound. In the lens holder moving portion, a lens holder moves in an optical axis and in first and second directions which are orthogonal to the optical axis and which are perpendicular to each other. The fixed member is disposed apart from the lens holder moving portion in the direction of the optical axis. The suspension wires have first end portions fixed to the fixed member at outer regions thereof, extending along the optical axis, having second end portions fixed to an elastic member mounted to the lens holder moving portion, and swingably supporting the lens holder moving portion in the first direction and the second direction. The damper compound is disposed so as to enclose at least one suspension wire and suppresses undesired resonance in the lens holder moving portion.Type: GrantFiled: August 15, 2012Date of Patent: October 6, 2015Assignee: MITSUMI ELECTRIC CO., LTD.Inventors: Keiichi Sato, Makoto Ariji, Masayoshi Sugawara, Akihiro Moriya
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Patent number: 9046642Abstract: A lens holder driving device includes an auto-focusing lens holder driving portion moving a lens holder holding a lens barrel along an optical axis, and an image stabilizer portion stabilizing image blurred by moving the auto-focusing lens holder driving portion in first and second directions which are orthogonal to the optical axis and which are perpendicular to each other. The image stabilizer portion includes: a fixed portion disposed apart from the auto-focusing lens holder driving portion in the direction of the optical axis; a plurality of suspension wires having first end portions fixed to the fixed portion at outer regions thereof, extending along the optical axis, having second end portions fixed to the auto-focusing lens holder driving portion, and swingably supporting the auto-focusing lens holder driving portion in the first direction and the second direction; and a fracture preventing member preventing the suspension wires from fracturing.Type: GrantFiled: July 13, 2012Date of Patent: June 2, 2015Assignee: Mitsumi Electric Co., Ltd.Inventors: Masayoshi Sugawara, Akihiro Moriya, Keiichi Sato, Makoto Ariji, Satoshi Ajiki
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Publication number: 20130050828Abstract: A lens holder driving device includes a lens holder moving portion, a fixed member, suspension wires, and a damper compound. In the lens holder moving portion, a lens holder moves in an optical axis and in first and second directions which are orthogonal to the optical axis and which are perpendicular to each other. The fixed member is disposed apart from the lens holder moving portion in the direction of the optical axis. The suspension wires have first end portions fixed to the fixed member at outer regions thereof, extending along the optical axis, having second end portions fixed to an elastic member mounted to the lens holder moving portion, and swingably supporting the lens holder moving portion in the first direction and the second direction. The damper compound is disposed so as to enclose at least one suspension wire and suppresses undesired resonance in the lens holder moving portion.Type: ApplicationFiled: August 15, 2012Publication date: February 28, 2013Applicant: MITSUMI ELECTRIC CO., LTD.Inventors: Keiichi SATO, Makoto ARIJI, Masayoshi SUGAWARA, Akihiro MORIYA
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Publication number: 20130016428Abstract: A lens holder driving device includes an auto-focusing lens holder driving portion moving a lens holder holding a lens barrel along an optical axis, and an image stabilizer portion stabilizing image blurred by moving the auto-focusing lens holder driving portion in first and second directions which are orthogonal to the optical axis and which are perpendicular to each other. The image stabilizer portion includes: a fixed portion disposed apart from the auto-focusing lens holder driving portion in the direction of the optical axis; a plurality of suspension wires having first end portions fixed to the fixed portion at outer regions thereof, extending along the optical axis, having second end portions fixed to the auto-focusing lens holder driving portion, and swingably supporting the auto-focusing lens holder driving portion in the first direction and the second direction; and a fracture preventing member preventing the suspension wires from fracturing.Type: ApplicationFiled: July 13, 2012Publication date: January 17, 2013Applicant: MITSUMI ELECTRIC CO., LTDInventors: Masayoshi SUGAWARA, Akihiro Moriya, Keiichi Sato, Makoto Ariji, Satoshi Ajiki