Patents by Inventor Yasuhide Takahashi
Yasuhide Takahashi 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: 8094200Abstract: In a lens apparatus, light entering a lens barrel from an external source is incident to an optoelectric converting element for image recording. The light passing through an optical path of the lens apparatus is filtered by a filter that absorbs a specific range of optical wavelengths and is provided in a filter frame. The filter frame is moved to position the filter at a first position that is on the optical path or at a second position that is away from the optical path. A filter housing structure is provided establishing a frame moving region in which the filter frame is arranged and moves, and blocking the incidence of light from a source other than the optical path to the filter frame moving region.Type: GrantFiled: December 17, 2008Date of Patent: January 10, 2012Assignee: Tamron Co., Ltd.Inventors: Yasuhide Takahashi, Koji Kawaguchi
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Patent number: 8066438Abstract: A camera apparatus includes an adjusting member configured to adjust a pan of an optical member included therein; a cover member configured to cover the optical member; and a fixing member fixed to an installation surface and configured to include a first engaging mechanism and a second engaging mechanism for respectively engaging the adjusting member and the cover member thereto. The pan of the optical member is adjusted by respectively engaging a groove or a protrusion of the first engaging mechanism and protrusion or a groove of the adjusting member, and rotating the adjusting member along the groove. The cover member is locked to the fixing member by respectively engaging a groove or a protrusion of the second engaging mechanism and a protrusion or groove of the cover member, and rotating the cover member a given angle along the groove.Type: GrantFiled: July 9, 2010Date of Patent: November 29, 2011Assignee: Tamron Co., Ltd.Inventor: Yasuhide Takahashi
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Publication number: 20110013900Abstract: A camera apparatus includes an adjusting member configured to adjust a pan of an optical member included therein; a cover member configured to cover the optical member; and a fixing member fixed to an installation surface and configured to include a first engaging mechanism and a second engaging mechanism for respectively engaging the adjusting member and the cover member thereto. The pan of the optical member is adjusted by respectively engaging a groove or a protrusion of the first engaging mechanism and protrusion or a groove of the adjusting member, and rotating the adjusting member along the groove. The cover member is locked to the fixing member by respectively engaging a groove or a protrusion of the second engaging mechanism and a protrusion or groove of the cover member, and rotating the cover member a given angle along the groove.Type: ApplicationFiled: July 9, 2010Publication date: January 20, 2011Inventor: Yasuhide TAKAHASHI
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Patent number: 7775664Abstract: An instrument for measuring a refractive power including an astigmatic axis with retinoscopy is provided, which includes a projector, a light receiving device, a detector, and a notification unit. The projector projects light into a pupil of an examined eye. The light receiving device receives light reflected from the examined eye. The detector detects a tilt angle of the light receiving device with respect to a measurement reference. The notification unit conveys information related to a result of detection performed by the detector.Type: GrantFiled: June 10, 2008Date of Patent: August 17, 2010Assignee: Right Mfg. Co., Ltd.Inventors: Nobuo Saito, Yasuhide Takahashi, Kenichi Takahashi, Yuuichi Kimura
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Patent number: 7604352Abstract: An instrument for measuring a refractive power includes a target, a target projecting unit, a measurement light projecting unit, a light receiving unit, a unit for performing a normal refractive power measurement, a judgment unit, and a unit for performing a high-speed refractive power measurement. The unit for performing a normal refractive power measurement measures a normal refractive power of an examined eye based on received light data. The judgment unit judges reliability of the received light data or the refractive power measurement. The unit for performing a high-speed refractive power measurement measures a refractive power of the examined eye faster than the unit for performing a normal refractive power measurement in response to a judgment result of the judgment unit.Type: GrantFiled: June 10, 2008Date of Patent: October 20, 2009Assignee: Right Mfg. Co., Ltd.Inventors: Nobuo Saito, Yasuhide Takahashi, Kenichi Takahashi, Yuuichi Kimura
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Publication number: 20090161003Abstract: In a lens apparatus, light entering a lens barrel from an external source is incident to an optoelectric converting element for image recording. The light passing through an optical path of the lens apparatus is filtered by a filter that absorbs a specific range of optical wavelengths and is provided in a filter frame. The filter frame is moved to position the filter at a first position that is on the optical path or at a second position that is away from the optical path. A filter housing structure is provided establishing a frame moving region in which the filter frame is arranged and moves, and blocking the incidence of light from a source other than the optical path to the filter frame moving region.Type: ApplicationFiled: December 17, 2008Publication date: June 25, 2009Inventors: Yasuhide TAKAHASHI, Koji Kawaguchi
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Publication number: 20080309875Abstract: An instrument for measuring a refractive power includes a target, a target projecting unit, a measurement light projecting unit, a light receiving unit, a unit for performing a normal refractive power measurement, a judgment unit, and a unit for performing a high-speed refractive power measurement. The unit for performing a normal refractive power measurement measures a normal refractive power of an examined eye based on received light data. The judgment unit judges reliability of the received light data or the refractive power measurement. The unit for performing a high-speed refractive power measurement measures a refractive power of the examined eye faster than the unit for performing a normal refractive power measurement in response to a judgment result of the judgment unit.Type: ApplicationFiled: June 10, 2008Publication date: December 18, 2008Applicant: RIGHT MFG. CO., LTD.Inventors: Nobuo Saito, Yasuhide Takahashi, Kenichi Takahashi, Yuuichi Kimura
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Publication number: 20080309877Abstract: An instrument for measuring a refractive power including an astigmatic axis with retinoscopy is provided, which includes a projector, a light receiving device, a detector, and a notification unit. The projector projects light into a pupil of an examined eye. The light receiving device receives light reflected from the examined eye. The detector detects a tilt angle of the light receiving device with respect to a measurement reference. The notification unit conveys information related to a result of detection performed by the detector.Type: ApplicationFiled: June 10, 2008Publication date: December 18, 2008Applicant: RIGHT MFG. CO., LTD.Inventors: Nobuo Saito, Yasuhide Takahashi, Kenichi Takahashi, Yuuichi Kimura
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Patent number: 7423822Abstract: The present invention is directed to a lens barrel that is simplified in structure with the reduced number of components and is facilitated in assembly and associated adjustment. The lens barrel enables an appropriate frictional force against the rotation force caused by manipulating rotary operation rings such as a zooming ring and a focusing ring to effect the optimum operating force on the rotary operation rings.Type: GrantFiled: March 9, 2007Date of Patent: September 9, 2008Assignee: Tamron Co., Ltd.Inventors: Masanori Miyauchi, Yasuhide Takahashi
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Publication number: 20070217036Abstract: The present invention is directed to a lens barrel that is simplified in structure with the reduced number of components and is facilitated in assembly and associated adjustment. The lens barrel enables an appropriate frictional force against the rotation force caused by manipulating rotary operation rings such as a zooming ring and a focusing ring to effect the optimum operating force on the rotary operation rings.Type: ApplicationFiled: March 9, 2007Publication date: September 20, 2007Inventors: Masanori Miyauchi, Yasuhide Takahashi
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Patent number: 4195528Abstract: A U-shaped tuning fork is fixed to a supporting block connected to a body in which a fault is to be detected. A spring loaded rod is movably supported at one end on the supporting block and extends through a spherical wedge sandwiched between two legs of the tuning fork. The tuning fork resonates at a frequency at which the detected body vibrates when a fault occurs in it. This permits the wedge and therefore the rod to move indicating the occurrence of the fault. Simultaneously a microswitch is operated to indicate electrically the existence of the fault.Type: GrantFiled: July 14, 1978Date of Patent: April 1, 1980Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Yasuhide Takahashi