Patents by Inventor Toshiyuki Nakajima
Toshiyuki Nakajima 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: 5578078Abstract: A deformable intraocular lens which does not deviate within the eye and is free from strains or deformation even when the tails of the supports are deformed by external force such as compression. The lens according to the invention has a deformable optical part which is made of an elastic material, and a plurality of supports which are made of a material different from that of the optical part and which are bonded to the optical part, each of the supports having, in a serial integration, a flexible tail, a rigid base which cuts off the transmission of stress generated by the deformation of the tail to the optical part, and an anchor which binds the support to the optical part, wherein the transitional part of the tail and the base is disposed outside the optical part. With this structure, even when the tails of the supports are deformed by external force, the tails themselves absorb the deformation stress and the rigid bases cut off transmission of the stress to the optical part.Type: GrantFiled: July 7, 1994Date of Patent: November 26, 1996Assignee: Canon Staar Co., Inc.Inventors: Toshiyuki Nakajima, Toshikazu Kikuchi
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Patent number: 5561498Abstract: An automatic image stabilization device which is arranged to detect image movement information from a sensed image signal produced from an image sensor and to reduce the image movement comprises a movement detecting circuit which obtains movement vector information for each of a plurality of parts of an image plane, and a weight setting circuit arranged to attach weight to each movement vector information and to vary the weighting degree according to photographing conditions. A camera using this device is arranged to correct the shaking of the camera on the basis of the result of a computing operation performed on a camera shake detected from the signal produced from the image sensor together with a camera shake physically detected by means of an accelerometer.Type: GrantFiled: March 13, 1995Date of Patent: October 1, 1996Assignee: Canon Kabushiki KaishaInventors: Masayoshi Sekine, Masamichi Toyama, Kazuhiro Noguchi, Toshiyuki Nakajima, Koji Takahashi
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Patent number: 5522890Abstract: A deformable intraocular lens which can be inserted in the eye through a smaller incision by being deformed to have a smaller shape. The lens according to the invention has a deformable optical part which is made of an elastic material, the optical part having a lens portion and a peripheral portion surrounding the lens portion. The peripheral portion is thinner than the center of the lens portion. A plurality of supports are made of a flexible material different from the material of the optical part. Each support has an anchor embedded in the optical part for bonding the support to the optical part. A plurality of reinforcing sections having a thickness larger than the peripheral portion of the optical part are provided at a plurality of positions on the peripheral portion of the optical part or in the proximity thereof. The anchors of the supports are embedded in the reinforcing section.Type: GrantFiled: July 7, 1994Date of Patent: June 4, 1996Assignee: Canon Staar Co., Inc.Inventors: Toshiyuki Nakajima, Toshikazu Kikuchi
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Patent number: 5496328Abstract: An inserting device for inserting an intraocular lens into the eye. An interference preventing portion is formed in a lens holding section which is provided with an opening/closing mechanism and is a part of a holder member attached to a body. An intraocular lens is held by the lens holding section such that its optical part made of an elastic material is deformed into a smaller shape. The tip portion of a support which is made of a different material from that of the optical part and which extends backward the optical part is received by the interference preventions portion. When a pusher rod of a pusher mechanism attached to the body is advanced, only the optical part is pushed by the pusher rod without causing interference between the pusher rod and the tip portion of the support, thereby inserting the intraocular lens into the eye.Type: GrantFiled: July 13, 1994Date of Patent: March 5, 1996Assignee: Canon Staar Co., Inc.Inventors: Toshiyuki Nakajima, Toshikazu Kikuchi
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Patent number: 5433137Abstract: A swash plate compressor in which a drive shaft is rotatably supported in a cylinder block having a crank chamber. The swash plate is rotatably disposed on the drive shaft. Thrust bearings are individually fitted between the movable thrust receiving faces of the swash plate and the stationary thrust receiving faces of the cylinder block. As the drive shaft rotates, the swash plate likewise rotates and reciprocates a piston to compress a refrigerant gas. Annular movable ridges are formed on the front and rear side faces of the swash plate concentric around the drive shaft. Stationary ridges are formed concentrically with the movable ridges on the cylinder blocks to face the individually movable ridges. The stationary ridge has a smaller radius than that of the movable ridge.Type: GrantFiled: February 15, 1994Date of Patent: July 18, 1995Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Hayato Ikeda, Hideo Mori, Toshiyuki Nakajima, Shoji Takemoto
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Patent number: 5386264Abstract: An image shake detecting device for detecting a shake of an image on an image sensing plane on the basis of a video signal output from an image sensor includes detection circuits arranged to detect image displacement in a plurality of areas set on the image sensing plane, and a control microcomputer which makes a discrimination, on the basis of information output from these detection circuits, between a movement of a camera and a solo movement of a photographed object. The device thus accurately makes compensation for an image shake by judging the state of the image on the basis of information output from these detection circuits. The image shake detecting device further includes a computing circuit arranged to compute a quantity of an image shake on the basis of a difference in detecting timing of a feature point of the image and a sensitivity control circuit arranged to change the detection sensitivity of the shake detection circuits.Type: GrantFiled: April 26, 1993Date of Patent: January 31, 1995Assignee: Canon Kabushiki KaishaInventors: Masayoshi Sekine, Toshiyuki Nakajima, Takashi Kai, Katsuji Yoshimura, Masamichi Toyama
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Patent number: 5201189Abstract: A refrigerant compressor to be incorporated in a refrigerating circuit of a car air-conditioning system, having a suction side connected to the refrigerating circuit for receiving a refrigerant gas to be compressed, a discharge side for delivering the refrigerant gas after compression, and a bypass passageway arranged between the suction and discharge sides and constantly closed by a passageway-closing valve, and opened by the passageway-closing valve, only when the lowering of a suction pressure prevailing on the suction side to a pressure level below the atmospheric pressure level immediately after a start of the operation of the compressor at a high speed after a long non-operation of the car air-conditioning system.Type: GrantFiled: September 6, 1991Date of Patent: April 13, 1993Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Naoya Yokomachi, Kazuhiro Tanikawa, Toshiyuki Nakajima, Tetsuya Takashima
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Patent number: 5186475Abstract: A gasket has a retainer element integrally formed therewith for a reed valve. The retainer element is defined by one or two pairs of contour lines or by a pair of geometrically combined contour lines, and these contour lines are arranged such that no contour line will act as if it were a hinge when the retainer element is subjected to a deformation force thereof, and thus the retainer element is able to sufficiently withstand a deformation force exerted thereon.Type: GrantFiled: May 7, 1992Date of Patent: February 16, 1993Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Katsunori Kawai, Atsushi Fukaya, Toshiyuki Nakajima
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Patent number: 5107293Abstract: An automatic image stabilization device which is arranged to detect image movement information from a sensed image signal produced from an image sensor and to reduce the image movement comprises a movement detecting circuit which obtains movement vector information for each of a plurality of parts of an image plane, and a weight setting circuit arranged to attach weight to each movement vector information and to vary the weighting degree according to photographing conditions. A camera using this device is arranged to correct the shaking of the camera on the basis of the result of a computing operation performed on a camera shake detected from the signal produced from the image sensor together with a camera shake physically detected by means of an accelerometer.Type: GrantFiled: September 6, 1989Date of Patent: April 21, 1992Assignee: Canon Kabushiki KaishaInventors: Masayoshi Sekine, Masamichi Toyama, Kazuhiro Noguchi, Toshiyuki Nakajima, Koji Takahashi
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Patent number: 5012270Abstract: An image shake detecting device for detecting a shake of an image on an image sensing plane on the basis of a video signal output from an image sensor includes detection circuits arranged to detect image displacement in a plurality of areas set on the image sensing plane, and a control microcomputer which makes a discrimination, on the basis of information output from these detection circuits, between a movement of a camera and a solo movement of a photographed object. The device thus accurately makes compensation for an image shake by judging the state of the image on the basis of information output from these detection circuits. The image shake detecting device further includes a computing circuit arranged to compute a quantity of an image shake on the basis of a difference in detecting timing of a feature point of the image and a sensitivity control circuit arranged to change the detection sensitivity of the shake detection circuits.Type: GrantFiled: March 6, 1989Date of Patent: April 30, 1991Assignee: Canon Kabushiki KaishaInventors: Masayoshi Sekine, Toshiyuki Nakajima, Takashi Kai, Katsuji Yoshimura, Masamichi Toyama
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Patent number: 4985186Abstract: A process for producing an optical element wherein an optical molding is formed by using a mold and thereafter released from the mold by supplying a gas to the boundary between the mold surface and the optical molding. In the process, no localized external force is applied to the optical molding during the release thereof, and therefore undesirable deformation or flaws of the optical molding are not caused.Type: GrantFiled: April 8, 1987Date of Patent: January 15, 1991Assignee: Canon Kabushiki KaishaInventors: Noriyuki Nose, Toshiyuki Nakajima, Eigo Kawakami, Takeshi Baba, Nobuo Kushibiki, Masakazu Matsugu, Yukichi Niwa
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Patent number: 4840473Abstract: An optical device is composed by sandwiching a deformable member between sandwiching members. The deformable member has a shear modulus decreasing toward the inside. The deformable member may be a combination of a core and a coating with different shear moduli or a single body having a continuoudly decreasing shear modulus. The sandwiching members may be a flat plate either transparent or opaque or a lens with or without reflecting film. Because of inner soft and outer hard elastic nature of the deformable member, the sandwiching members can easily change their relative position to change an optical path and an imaging position of the optical device with good durability.Type: GrantFiled: September 18, 1986Date of Patent: June 20, 1989Assignee: Canon Kabushiki KaishaInventors: Nobuo Kushibiki, Noriyuki Nose, Toshiyuki Nakajima, Takeshi Baba, Masakazu Matsugu, Yukichi Niwa
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Patent number: 4802746Abstract: A variable focus optical element comprises plural elastic members superposed in the axial direction and a deforming member having an aperture to cause the elastic member to protrude therefrom or descend therein thereby deforming the surface of the elastic members, and the modulus of elasticity of an elastic member at the protruding side is selected larger than that of another elastic member adjacent to first-mentioned elastic member at the protruding side.Type: GrantFiled: February 25, 1986Date of Patent: February 7, 1989Assignee: Canon Kabushiki KaishaInventors: Takeshi Baba, Shigeyuki Suda, Noriyuki Nose, Eigo Kawakami, Toshiyuki Nakajima, Nobuo Kushibiki
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Patent number: 4783153Abstract: A variable-focus optical device comprises an elastomeric member having a gradient of shear modulus along its optical axis, and a deforming member having an aperture adapted for causing projection or sinking of the elastomeric member therethrough or thereat to deform the surface of the elastomeric member. The gradient of shear modulus is preferably one of continuously decreasing from the surface toward the inside of the elastomeric member. The gradient of shear modulus is provided by a concentration gradient of an inorganic substance such as silica dispersed in an elastomeric substance such as polysilioxane.Type: GrantFiled: December 17, 1986Date of Patent: November 8, 1988Assignee: Canon Kabushiki KaishaInventors: Nobuo Kushibiki, Noriyuki Nose, Takeshi Baba, Toshiyuki Nakajima, Masahiro Okuda
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Patent number: 4735483Abstract: A fiber scope of the side-viewing type includes an image guide and two light guides disposed on both sides thereof in an objective part. The fiber scope is suitable for the observation of the surface of long articles assembled with narrow gaps therebetween as in an assembly of nuclear fuel rods in a nuclear reactor and a wide field of view can be secured even if an object to be observed stands within a point-blank range of an objective part. Also a plurality of long articles can be simultaneously observed by the fiber scope or the observation can be carried out while moving the fiber scope in the scanning direction. If the fiber scope is used in a radioactive environment, highly radiation resistant optical fibers are used.Type: GrantFiled: January 22, 1985Date of Patent: April 5, 1988Assignees: Dainichi-Nippon Cables, Ltd., Mitsubishi Jukogyo Kabushiki KaishaInventors: Takao Kuroiwa, Sunao Oshibe, Atsushi Utsumi, Toshiyuki Nakajima, Kohei Morisaki, Masatoshi Takamatsu, Shoichi Hamada, Junji Nakayama, Yoshiaki Kondo
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Patent number: 4549175Abstract: Image display apparatus provided with an address converter aiding the apparatus in faithfully reproducing for display an optical image transmitted via an optical fiber bundle. The address converter is adapted to store information concerning the relation between the geometric address of the individual optical fibers at one end face of the optical fiber bundle and that at the other end face so as to permit conversion of one geometric address to the other. The small elements of an image transmitted through the individual optical fibers to the rear end of the bundle are rearranged in accordance with the geometric address of the fibers on the front end to complete an image conforming to the original transmitted image.Type: GrantFiled: October 6, 1982Date of Patent: October 22, 1985Assignees: Dainichi-Nippon Cables, Ltd., Graphica Computer CorporationInventors: Mitsuru Rokunohe, Toshiyuki Nakajima, Kansei Iwata, Hiroyuki Tajima