Patents by Inventor Kazuhiko Takatsuka
Kazuhiko Takatsuka 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: 8233083Abstract: A camera module includes a lens barrel, a lens holder, an image pickup device, and a plurality of springs supporting the lens holder in such a manner that the lens holder is movable along an optical axis of an imaging optical system. Each of the springs includes first and second arm portions extending perpendicularly to each other in a plane perpendicular to the optical axis. Each of the first and second arm portions includes two parallel spring strips that are connected to each other by an arc portion. One of the spring strips of the first arm portion is connected to one of the spring strips of the second arm portion. The other one of the spring strips of the first arm portion is attached to the lens holder, and the other one of the spring strips of the second arm portion is attached to the lens barrel.Type: GrantFiled: June 8, 2009Date of Patent: July 31, 2012Assignee: Sony CorporationInventors: Kazuhiko Takatsuka, Hiroaki Tojo, Masashi Nishimoto
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Patent number: 8120694Abstract: A lens barrel includes: a plurality of lenses disposed in an outer enclosure; and an imaging device that converts image light introduced as an image capturing signal through the plurality of lenses into an image signal. The outer enclosure has a unit assembling portion in which an imaging unit is disposed. The imaging unit includes a centering lens disposed in the bottom portion of the unit assembling portion, a pressing plate that presses the centering lens from the side opposite the bottom portion, a packing disposed on the opposite side of the pressing plate, and an imaging module having the imaging device and disposed on the opposite side of the packing to the pressing plate and pressing the packing against the pressing plate. A working hole through which an adjustment jig is inserted is formed in the peripheral side portion of the unit assembling portion.Type: GrantFiled: October 20, 2008Date of Patent: February 21, 2012Assignee: Sony CorporationInventors: Kazuhiko Takatsuka, Naoyuki Ohno, Hironori Shimizu, Hiroshi Mashima
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Patent number: 7738195Abstract: A lens barrel includes: a plurality of lenses disposed in an outer enclosure; an imaging device that converts image light introduced through the plurality of lenses into an image signal; a first movable unit including a first movable lens and a first lens holder that holds the first movable lens; a second movable unit including a second movable lens and a second lens holder that holds the second movable lens; a first lead screw rotated by a first drive motor; a second lead screw rotated by a second drive motor; a first nut member made of a metal material threadably engaging the first lead screw and connected to the first lens holder; and a second nut member made of a metal material threadably engaging the second lead screw and connected to the second lens holder.Type: GrantFiled: October 16, 2008Date of Patent: June 15, 2010Assignee: Sony CorporationInventors: Hiroshi Mashima, Naoyuki Ohno, Hironori Shimizu, Kazuhiko Takatsuka, Hiroaki Tojo
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Patent number: 7710668Abstract: A lens barrel includes: a plurality of lenses disposed in an outer enclosure; an imaging device that converts image light introduced through the plurality of lenses into an image signal; a movable unit including a movable lens and a lens holder that holds the movable lens; a lead screw rotated by a drive motor; a nut member made of a metal material threadably engaging the lead screw and connected to the lens holder, the nut member moved by the rotation of the lead screw in the optical axis direction moving the movable unit in the optical axis direction; a guide shaft that guides the movable unit in the optical axis direction, both axial ends of the guide shaft held by the outer enclosure; and an urging spring that presses part of the lens holder against the nut member when the movable unit moves in the optical axis direction.Type: GrantFiled: September 26, 2008Date of Patent: May 4, 2010Assignee: Sony CorporationInventors: Hironori Shimizu, Naoyuki Ohno, Hiroshi Mashima, Kazuhiko Takatsuka
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Publication number: 20090316040Abstract: A camera module includes a lens barrel, a lens holder, an image pickup device, and a plurality of springs supporting the lens holder in such a manner that the lens holder is movable along an optical axis of an imaging optical system. Each of the springs includes first and second arm portions extending perpendicularly to each other in a plane perpendicular to the optical axis. Each of the first and second arm portions includes two parallel spring strips that are connected to each other by an arc portion. One of the spring strips of the first arm portion is connected to one of the spring strips of the second arm portion. The other one of the spring strips of the first arm portion is attached to the lens holder, and the other one of the spring strips of the second arm portion is attached to the lens barrel.Type: ApplicationFiled: June 8, 2009Publication date: December 24, 2009Applicant: Sony CorporationInventors: Kazuhiko TAKATSUKA, Hiroaki TOJO, Masashi NISHIMOTO
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Patent number: 7625106Abstract: Disclosed herein is a heat radiating structure for radiating the heat generated by a lamp in an image projecting apparatus for projecting an image onto a screen to display the image thereon, including a heat sink for radiating heat generated by the lamp, the heat sink including heat transfer means for transferring the heat from the lamp, the heat transfer means being held in close contact with the lamp, heat storage means for storing the heat transferred from the lamp through the heat transfer means, and a plurality of fins serving as heat radiating means for radiating the heat stored by the heat storage means, wherein the heat transfer means, the heat storage means, and the heat radiating means are of a separable structure.Type: GrantFiled: August 3, 2006Date of Patent: December 1, 2009Assignee: Sony CorporationInventors: Hiroaki Fujii, Kazuhiko Takatsuka, Akihito Yajima, Yoshiro Asano
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Publication number: 20090109556Abstract: A lens barrel includes: a plurality of lenses disposed in an outer enclosure; an imaging device that converts image light introduced through the plurality of lenses into an image signal; a movable unit including a movable lens and a lens holder that holds the movable lens; a lead screw rotated by a drive motor; a nut member made of a metal material threadably engaging the lead screw and connected to the lens holder, the nut member moved by the rotation of the lead screw in the optical axis direction moving the movable unit in the optical axis direction; a guide shaft that guides the movable unit in the optical axis direction, both axial ends of the guide shaft held by the outer enclosure; and an urging spring that presses part of the lens holder against the nut member when the movable unit moves in the optical axis direction.Type: ApplicationFiled: September 26, 2008Publication date: April 30, 2009Applicant: Sony CorporationInventors: Hironori Shimizu, Naoyuki Ohno, Hiroshi Mashima, Kazuhiko Takatsuka
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Publication number: 20090109319Abstract: A lens barrel includes: a plurality of lenses disposed in an outer enclosure; and an imaging device that converts image light introduced as an image capturing signal through the plurality of lenses into an image signal. The outer enclosure has a unit assembling portion in which an imaging unit is disposed. The imaging unit includes a centering lens disposed in the bottom portion of the unit assembling portion, a pressing plate that presses the centering lens from the side opposite the bottom portion, a packing disposed on the opposite side of the pressing plate, and an imaging module having the imaging device and disposed on the opposite side of the packing to the pressing plate and pressing the packing against the pressing plate. A working hole through which an adjustment jig is inserted is formed in the peripheral side portion of the unit assembling portion.Type: ApplicationFiled: October 20, 2008Publication date: April 30, 2009Applicant: Sony CorporationInventors: Kazuhiko Takatsuka, Naoyuki Ohno, Hironori Shimizu, Hiroshi Mashima
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Publication number: 20090109555Abstract: A lens barrel includes: a plurality of lenses disposed in an outer enclosure; an imaging device that converts image light introduced through the plurality of lenses into an image signal; a first movable unit including a first movable lens and a first lens holder that holds the first movable lens; a second movable unit including a second movable lens and a second lens holder that holds the second movable lens; a first lead screw rotated by a first drive motor; a second lead screw rotated by a second drive motor; a first nut member made of a metal material threadably engaging the first lead screw and connected to the first lens holder; and a second nut member made of a metal material threadably engaging the second lead screw and connected to the second lens holder.Type: ApplicationFiled: October 16, 2008Publication date: April 30, 2009Applicant: Sony CorporationInventors: Hiroshi Mashima, Naoyuki Ohno, Hironori Shimizu, Kazuhiko Takatsuka, Hiroaki Tojo
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Publication number: 20070041196Abstract: Disclosed herein is a heat radiating structure for radiating the heat generated by a lamp in an image projecting apparatus for projecting an image onto a screen to display the image thereon, including a heat sink for radiating heat generated by the lamp, the heat sink including heat transfer means for transferring the heat from the lamp, the heat transfer means being held in close contact with the lamp, heat storage means for storing the heat transferred from the lamp through the heat transfer means, and a plurality of fins serving as heat radiating means for radiating the heat stored by the heat storage means, wherein the heat transfer means, the heat storage means, and the heat radiating means are of a separable structure.Type: ApplicationFiled: August 3, 2006Publication date: February 22, 2007Applicant: Sony CorporationInventors: Hiroaki Fujii, Kazuhiko Takatsuka, Akihito Yajima, Yoshiro Asano