Patents by Inventor Kenji Tanehashi
Kenji Tanehashi 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: 11921283Abstract: A vibrating element includes a movable part, a substrate made of metal, a driving source, and a holding member holding the substrate. The substrate includes a pair of support beam parts, a support part, and a torsion beam part. Each of the support beam parts has a first end part and a second end part. The support part supports the first end part. The torsion beam part swingably supports the movable part. The second end part of each of the support beam parts is provided with a fixing part fixed to the holding member. By adjusting an inclination with respect to the holding member, the fixing part is fixed to the holding member in a state in which each of the support beam parts applies tension to the torsion beam part in a direction away from the movable part in a first direction in which the torsion beam part extends.Type: GrantFiled: May 27, 2021Date of Patent: March 5, 2024Assignee: FUNAI ELECTRIC CO., LTD.Inventors: Kenichi Fujita, Kenji Tanehashi, Fuminori Tanaka
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Patent number: 11919768Abstract: Provided is a vibrating mirror element including: a mirror part; a substrate made of metal, including a pair of beams, a support supporting each of the pair of beams, and a torsion part swingably supporting the mirror part; a driving source generating a plate wave that swings the mirror part; and a vibration suppression part suppressing vibration transmitted to the pair of beams. The vibration suppression part is configured to suppress the vibration transmitted to the pair of beams by abutting against the pair of beams at a position between a second mirror end among ends of the mirror part that is opposite a first mirror end near the support and the torsion part in a first direction in which the pair of beams extends.Type: GrantFiled: April 19, 2021Date of Patent: March 5, 2024Assignee: FUNAI ELECTRIC CO., LTD.Inventors: Kenji Tanehashi, Fuminori Tanaka, Kenichi Fujita
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Patent number: 11366308Abstract: An optical scanner unit includes a mirror component, a vibration generator, an optical sensor, and a light shield portion. The mirror component includes a reflective portion for reflecting light. The vibration generator swings the mirror component around a specific swing axis when AC voltage is applied. The optical sensor includes a light emitter and a light receiver for receiving light emitted from the light emitter. The light shield portion is provided to the mirror component so as to swing along with the mirror component. The light shield portion blocks the light emitted from the light emitter. The light receiver further includes a first light receiver that is provided on one swing angle side from a center position of a swing angle range of the light shield portion, and a second light receiver that is provided on the other swing angle side from the center position of the swing angle range.Type: GrantFiled: January 29, 2020Date of Patent: June 21, 2022Assignee: FUNAI ELECTRIC CO., LTD.Inventors: Fuminori Tanaka, Futoshi Takeda, Kenji Tanehashi, Kenichi Fujita
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Publication number: 20210382297Abstract: A vibrating element includes a movable part, a substrate made of metal, a driving source, and a holding member holding the substrate. The substrate includes a pair of support beam parts, a support part, and a torsion beam part. Each of the support beam parts has a first end part and a second end part. The support part supports the first end part. The torsion beam part swingably supports the movable part. The second end part of each of the support beam parts is provided with a fixing part fixed to the holding member. By adjusting an inclination with respect to the holding member, the fixing part is fixed to the holding member in a state in which each of the support beam parts applies tension to the torsion beam part in a direction away from the movable part in a first direction in which the torsion beam part extends.Type: ApplicationFiled: May 27, 2021Publication date: December 9, 2021Applicant: FUNAI ELECTRIC CO., LTD.Inventors: KENICHI FUJITA, Kenji TANEHASHI, Fuminori TANAKA
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Publication number: 20210331911Abstract: Provided is a vibrating mirror element including: a mirror part; a substrate made of metal, including a pair of beams, a support supporting each of the pair of beams, and a torsion part swingably supporting the mirror part; a driving source generating a plate wave that swings the mirror part; and a vibration suppression part suppressing vibration transmitted to the pair of beams. The vibration suppression part is configured to suppress the vibration transmitted to the pair of beams by abutting against the pair of beams at a position between a second mirror end among ends of the mirror part that is opposite a first mirror end near the support and the torsion part in a first direction in which the pair of beams extends.Type: ApplicationFiled: April 19, 2021Publication date: October 28, 2021Applicant: FUNAI ELECTRIC CO., LTD.Inventors: KENJI TANEHASHI, FUMINORI TANAKA, KENICHI FUJITA
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Publication number: 20200363632Abstract: An optical scanner unit includes a mirror component, a vibration generator, an optical sensor, and a light shield portion. The mirror component includes a reflective portion for reflecting light. The vibration generator swings the mirror component around a specific swing axis when AC voltage is applied. The optical sensor includes a light emitter and a light receiver for receiving light emitted from the light emitter. The light shield portion is provided to the mirror component so as to swing along with the mirror component. The light shield portion blocks the light emitted from the light emitter. The light receiver further includes a first light receiver that is provided on one swing angle side from a center position of a swing angle range of the light shield portion, and a second light receiver that is provided on the other swing angle side from the center position of the swing angle range.Type: ApplicationFiled: January 29, 2020Publication date: November 19, 2020Inventors: Fuminori TANAKA, Futoshi TAKEDA, Kenji TANEHASHI, Kenichi FUJITA
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Publication number: 20150033244Abstract: Provided is an actuator, an optical pickup, and a disc apparatus, with improved assembling workability and reduced manufacturing cost. The actuator of the optical pickup of the disc apparatus includes a movable part and a fixed part supporting the movable part in a movable manner. The movable part includes a case and a plurality of drive substrates having the same specification. The drive substrates are disposed at positions opposed to each other with respect to the case. Each drive substrate includes a winding member for driving the movable part and a wiring pattern for supplying current to the winding member. The wiring pattern includes a plurality of electrodes and a conductive path. The electrodes are disposed at positions opposed to each other with respect to the winding member. The conductive path is branched from one end of the winding member and is connected to the electrodes.Type: ApplicationFiled: July 21, 2014Publication date: January 29, 2015Applicant: Funai Electric Co., Ltd.Inventors: Ryozo Hosoda, Tatsuya Ito, Togo Kojima, Shinya Hatano, Kenji Tanehashi