Patents by Inventor Yoshio Kakuta
Yoshio Kakuta 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: 8018666Abstract: Provided is a lens-driving unit reduced in size and improved in durability. A first flexible printed wiring board of the lens-driving unit has a terminal on one side connected to a first piezoelectric motor and lead in parallel to an optical axis, and the other side connected to a unit for power supply and control, in a loop shape gently bent to an opposite direction to the leading direction. A second flexible printed wiring board of it has a terminal on one side connected to a piezoelectric motor and lead in parallel to the optical axis, and the other side connected to a unit for power supply and control, in a loop shape gently bent to the opposite direction to the leading direction. At such reference plane a structure symmetrically having the second and the first flexible printed wiring board with respect to a reference plane, is employed.Type: GrantFiled: December 25, 2007Date of Patent: September 13, 2011Assignee: Tamron Co., Ltd.Inventor: Yoshio Kakuta
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Patent number: 8014089Abstract: Object of the present invention is to provide a lens driving unit in small size and perform a high ratio optical zooming and a lens driving device. To achieve the object, the lens driving unit in which the lens group holding frame supported to be able to slide by connecting to a guide pole arranged in parallel with the optical axis; and a drive transmission unit consisting of a pinion mounted on the output shaft of the motor and a rack formed in the lens group holding frame is adopted, and a driving force of the motor is transmitted to the lens group holding frame by gearing the pinion with the rack to make the lens group holding frame slide along the guide pole, and a lens driving device comprising the lens driving unit is adopted.Type: GrantFiled: March 23, 2009Date of Patent: September 6, 2011Assignee: Tamron Co., Ltd.Inventor: Yoshio Kakuta
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Patent number: 7934875Abstract: An object of the present invention is to provide a method for arranging an FPC in a lens barrel of an imaging device which allows installation of new function to an imaging device without eliminating function installed and size up. To solve the problem, the FPC electrically connect plurality of a optical elements movable which constitute an optical unit arranged movably along the optical axis, to the control unit that controls the operation of the optical elements movable, is made to comprise an extension section extending from a connector of the control unit in a state able to be fixed to a lens barrel, a fixed section fixed to the lens barrel, and a bent turn back section extending from the fixed section and then turn back in a loop shape with a terminal provided on the edge, and the terminal is connected to the optical element movable constituting the optical unit.Type: GrantFiled: May 21, 2009Date of Patent: May 3, 2011Assignee: Tamron Co., Ltd.Inventor: Yoshio Kakuta
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Publication number: 20100321805Abstract: Provided is a lens-driving unit reduced in size and improved in durability, A first flexible printed wiring board of the lens-driving unit has a terminal on one side connected to a first piezoelectric motor and lead in parallel to an optical axis, and the other side connected to a unit for power supply and control, in a loop shape gently bent to an opposite direction to the leading direction. A second flexible printed wiring board of it has a terminal on one side connected to a piezoelectric motor and lead in parallel to the optical axis, and the other side connected to a unit for power supply and control, in a loop shape gently bent to the opposite direction to the leading direction. At such reference plane a structure symmetrically having the second and the first flexible printed wiring board with respect to a reference plane, is employed.Type: ApplicationFiled: December 25, 2007Publication date: December 23, 2010Applicant: TAMRON CO., LTD.Inventor: Yoshio Kakuta
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Publication number: 20100315730Abstract: Provided is a lens driving device reduced in sizes. In a right side region divided by a virtual center line vertically passing the outer circumference region of both lens group holding frames, including an optical axis, a lens driving device concentratedly has a first guide pole, a second guide pole, a lead screw of a first piezoelectric motor, and a lead screw of a second piezoelectric motor, when viewed from the front. Furthermore, the lead screw of the first piezoelectric motor and the lead screw of the second piezoelectric motor are arranged in an intermediate region between the first guide pole and the second guide pole.Type: ApplicationFiled: December 25, 2007Publication date: December 16, 2010Applicant: TAMRON CO., LTD.Inventor: Yoshio Kakuta
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Publication number: 20090324210Abstract: An object of the present invention is to provide a method for arranging an FPC in a lens barrel of an imaging device which allows installation of new function to an imaging device without eliminating function installed and size up. To solve the problem, the FPC electrically connect plurality of a optical elements movable which constitute an optical unit arranged movably along the optical axis, to the control unit that controls the operation of the optical elements movable, is made to comprise an extension section extending from a connector of the control unit in a state able to be fixed to a lens barrel, a fixed section fixed to the lens barrel, and a bent turn back section extending from the fixed section and then turn back in a loop shape with a terminal provided on the edge, and the terminal is connected to the optical element movable constituting the optical unit.Type: ApplicationFiled: May 21, 2009Publication date: December 31, 2009Applicant: TAMRON CO., LTD.Inventor: Yoshio Kakuta
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Publication number: 20090296238Abstract: This invention has as its object to provide a lens apparatus for an image pickup apparatus which can be reduced in size and is excellent in driving accuracy. In order to achieve the above-described object, this invention adopts a lens apparatus including a prism having an entrance surface which receives a light beam incident from a subject side, a reflection surface which deflects a light beam incident from the entrance surface, and an exit surface which emits a light beam deflected by the reflection surface toward an image pickup surface side, a prism holder which holds the prism, a lens group of subject side, and a lens group of image pickup surface side, wherein the lens group of subject side is fixed to the entrance surface of the prism and/or the lens group of image pickup surface side is fixed to the exit surface of the prism.Type: ApplicationFiled: May 28, 2009Publication date: December 3, 2009Applicant: TAMRON CO., LTD.Inventor: Yoshio Kakuta
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Publication number: 20090244732Abstract: Object of the present invention is to provide a lens driving unit in small size and perform a high ratio optical zooming and a lens driving device. To achieve the object, the lens driving unit in which the lens group holding frame supported to be able to slide by connecting to a guide pole arranged in parallel with the optical axis; and a drive transmission unit consisting of a pinion mounted on the output shaft of the motor and a rack formed in the lens group holding frame is adopted, and a driving force of the motor is transmitted to the lens group holding frame by gearing the pinion with the rack to make the lens group holding frame slide along the guide pole, and a lens driving device comprising the lens driving unit is adopted.Type: ApplicationFiled: March 23, 2009Publication date: October 1, 2009Applicant: Tamron Co., Ltd.Inventor: Yoshio KAKUTA
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Publication number: 20090237816Abstract: An object of the present invention is to provide a lens holding frame which enables a down-sizing, less fluctuation in a sliding motion of the lens in the direction parallel with the optical axis, and excellent durability, a lens driving device, and an imaging device. To achieve the object, the lens holding frame for holding a lens driven for image focusing comprising the main body of a lens frame and a sliding guide device connected to the outer edge of the main body; and the sliding guide device comprising a rack which transmit power transmitted from a driving source via a pinion on the surface are adopted, and are assembled to enable sliding along a guide pole provided in parallel with the optical axis in an outer peripheral part of the sliding motion path of the lens driven for image focusing to focus the image.Type: ApplicationFiled: March 23, 2009Publication date: September 24, 2009Applicant: Tamron Co., Ltd.Inventor: Yoshio Kakuta
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Publication number: 20080074766Abstract: There is provided a lens driving device which can be miniaturized and an imaging device using the same. In the lens driving device of a cellular phone, a first lead screw and three gears forming a first driving mechanism are arranged along the optical-axis orthogonal reference-plane. A second lead screw and three gears forming a second driving mechanism are arranged along the optical-axis orthogonal reference-plane. A first motor is arranged along the optical-axis orthogonal reference-plane on one side of the first driving mechanism. A second motor is arranged along the optical-axis orthogonal reference-plane on one side of the second driving mechanism and opposes to the first motor with the optical-axis orthogonal reference-line interposed therebetween.Type: ApplicationFiled: September 17, 2007Publication date: March 27, 2008Applicant: Tamron Co., Ltd.Inventor: Yoshio Kakuta
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Patent number: 6771424Abstract: The present invention is a head-mounted display device comprising a head holding holder that is proximate at least to the two sides of the head and to the front of the head, and a display unit that is deployed on that holder, at a position over either the left or right eye at the front of the head.Type: GrantFiled: August 15, 2000Date of Patent: August 3, 2004Assignee: Shimadzu CorporationInventors: Hisashi Amafuji, Keizo Kumai, Tetsuya Kishida, Yoshio Kakuta
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Patent number: 6339483Abstract: In a film scanner, for reading an original image on a photographic film, provided with an optical system for irradiating light to the original image on the photographic film and for focusing light from the photographic film so as to form an image and photoelectically converting elements for photoelectically reading the formed image by the optical system, there is further provided an image resolution regulator to regulate image resolution of the read image in accordance with the size of the original image to be read.Type: GrantFiled: September 11, 1998Date of Patent: January 15, 2002Assignee: Konica CorporationInventors: Yasushi Hoshino, Yoshio Kakuta, Toshiki Fujisawa
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Patent number: 5530498Abstract: A camera for reading film information expressed with a bar code, which is provided on a bar code plate being rotatable with a spool of a film cartridge, through a window of the film cartridge. The camera includes: a driver for rotating the spool; an optical reading device for reading the bar code, and for generating a bar code information including the film information; a detecting circuit for detecting a reference position of the bar code according to the bar code information, and a memory device for storing the bar code information being read by the optical reading device. In the camera, the driver rotates the spool in a film rewinding direction after a film in the film cartridge is rewound so that the detector circuit detects the reference position of the bar code according to the bar code information stored in the memory device, and the driver rotates the spool according to the reference position so as to locate a bar code portion corresponding to exposed state of the film.Type: GrantFiled: May 11, 1995Date of Patent: June 25, 1996Assignee: Konica CorporationInventors: Takemi Miyazaki, Yoshio Kakuta, Toshiki Fujisawa
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Patent number: 5477288Abstract: A camera having a trimming function capable of recording trimming information includes a lens barrel having a picture-taking lens capable of moving between protruding and retracting positions, a lens barrel driver to drive the lens barrel, a zoom viewfinder driver to change a magnification of the viewfinder, a film winder to winding a photographic film, a film rewinder to rewind the film, a motor to feed the film. The camera further includes a driver to drive the film winder when the motor is forwardly rotated, and also to drive the film rewinder or the zoom viewfinder driver when the motor is reversely rotated, and a switch to switch over between the zoom viewfinder driver and the film rewinder in accordance with a position of the lens barrel.Type: GrantFiled: January 19, 1994Date of Patent: December 19, 1995Assignee: Konica CorporationInventors: Takemi Miyazaki, Kazuhiro Nakanishi, Yoshio Kakuta, Noriyuki Kaedeoka, Toshiki Fujisawa
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Patent number: 5467155Abstract: A camera for reading film information expressed with a bar code, which is provided on a bar code plate being rotatable with a spool of a film cartridge, through a window of the film cartridge. The camera includes: a driver for rotating the spool; an optical reading device for reading the bar code, and for generating a bar code information including the film information; a detecting circuit for detecting a reference position of the bar code according to the bar code information; and a memory device for storing the bar code information being read by the optical reading device. In the camera, the driver starts rotating the spool in a film rewinding direction when the film cartridge is set in the camera and before a film in the film cartridge is loaded to a photographing position so that the optical reading device reads the bar code information, the detecting circuit detects the reference position, and the memory device stores the bar code information.Type: GrantFiled: May 19, 1994Date of Patent: November 14, 1995Assignee: Konica CorporationInventors: Takemi Miyazaki, Yoshio Kakuta, Toshiki Fujisawa
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Patent number: 5409175Abstract: A photographic roll film cartridge in which a roll film is stored in an initial packaged condition before being used for photographing. In the initial packaged condition, the leading edge portion of the roll film protrudes out of the cartridge by a length of 10 mm to 25 mm.Type: GrantFiled: August 16, 1993Date of Patent: April 25, 1995Assignee: Konica CorporationInventors: Kiyoaki Hazama, Kazuhiro Nakanishi, Takemi Miyazaki, Yoshio Kakuta, Noriyuki Kaedeoka, Ying J. Min, Osamu Shibazaki, Masaru Iwagaki, Kazumasa Matsumoto
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Patent number: 5062409Abstract: A hot-air furnace has a long-flame burner for combusting gas or liquid fuel with a combustion chamber connected to the burner and having its length (l) and width (w.sub.1) in relationship of w.sub.1 <l. A heat exchanger is located above the combustion chamber and has internally a gas flow guide plate which guides combustion gas flow discharged from the combustion chamber to the heat exchanger. The heat exchanger has a width (w.sub.2) and length (l) in the relationship of w.sub.2 <l. An exhaust port for exhausting the combustion gas flow is located at the front or rear of, right or left-hand side of or on the top side above said heat exchanger. A casing has a drum integrally connecting the combustion chamber and the heat exchanger, an air flow guide and directing plate which covers the drum, a radiant heat absorber plate outside the combustion chamber, and a blower above or below the drum.Type: GrantFiled: April 16, 1990Date of Patent: November 5, 1991Assignee: Nepon Company, LtdInventors: Ryusuke Kamanaka, Yoshio Kakuta