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).

  • Patent number: 5578078
    Abstract: 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: Grant
    Filed: July 7, 1994
    Date of Patent: November 26, 1996
    Assignee: Canon Staar Co., Inc.
    Inventors: Toshiyuki Nakajima, Toshikazu Kikuchi
  • Patent number: 5561498
    Abstract: 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: Grant
    Filed: March 13, 1995
    Date of Patent: October 1, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayoshi Sekine, Masamichi Toyama, Kazuhiro Noguchi, Toshiyuki Nakajima, Koji Takahashi
  • Patent number: 5522890
    Abstract: 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: Grant
    Filed: July 7, 1994
    Date of Patent: June 4, 1996
    Assignee: Canon Staar Co., Inc.
    Inventors: Toshiyuki Nakajima, Toshikazu Kikuchi
  • Patent number: 5496328
    Abstract: 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: Grant
    Filed: July 13, 1994
    Date of Patent: March 5, 1996
    Assignee: Canon Staar Co., Inc.
    Inventors: Toshiyuki Nakajima, Toshikazu Kikuchi
  • Patent number: 5433137
    Abstract: 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: Grant
    Filed: February 15, 1994
    Date of Patent: July 18, 1995
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Hayato Ikeda, Hideo Mori, Toshiyuki Nakajima, Shoji Takemoto
  • Patent number: 5386264
    Abstract: 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: Grant
    Filed: April 26, 1993
    Date of Patent: January 31, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayoshi Sekine, Toshiyuki Nakajima, Takashi Kai, Katsuji Yoshimura, Masamichi Toyama
  • Patent number: 5201189
    Abstract: 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: Grant
    Filed: September 6, 1991
    Date of Patent: April 13, 1993
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Naoya Yokomachi, Kazuhiro Tanikawa, Toshiyuki Nakajima, Tetsuya Takashima
  • Patent number: 5186475
    Abstract: 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: Grant
    Filed: May 7, 1992
    Date of Patent: February 16, 1993
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Katsunori Kawai, Atsushi Fukaya, Toshiyuki Nakajima
  • Patent number: 5107293
    Abstract: 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: Grant
    Filed: September 6, 1989
    Date of Patent: April 21, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayoshi Sekine, Masamichi Toyama, Kazuhiro Noguchi, Toshiyuki Nakajima, Koji Takahashi
  • Patent number: 5012270
    Abstract: 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: Grant
    Filed: March 6, 1989
    Date of Patent: April 30, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayoshi Sekine, Toshiyuki Nakajima, Takashi Kai, Katsuji Yoshimura, Masamichi Toyama
  • Patent number: 4985186
    Abstract: 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: Grant
    Filed: April 8, 1987
    Date of Patent: January 15, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Noriyuki Nose, Toshiyuki Nakajima, Eigo Kawakami, Takeshi Baba, Nobuo Kushibiki, Masakazu Matsugu, Yukichi Niwa
  • Patent number: 4840473
    Abstract: 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: Grant
    Filed: September 18, 1986
    Date of Patent: June 20, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuo Kushibiki, Noriyuki Nose, Toshiyuki Nakajima, Takeshi Baba, Masakazu Matsugu, Yukichi Niwa
  • Patent number: 4802746
    Abstract: 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: Grant
    Filed: February 25, 1986
    Date of Patent: February 7, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Baba, Shigeyuki Suda, Noriyuki Nose, Eigo Kawakami, Toshiyuki Nakajima, Nobuo Kushibiki
  • Patent number: 4783153
    Abstract: 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: Grant
    Filed: December 17, 1986
    Date of Patent: November 8, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuo Kushibiki, Noriyuki Nose, Takeshi Baba, Toshiyuki Nakajima, Masahiro Okuda
  • Patent number: 4735483
    Abstract: 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: Grant
    Filed: January 22, 1985
    Date of Patent: April 5, 1988
    Assignees: Dainichi-Nippon Cables, Ltd., Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Takao Kuroiwa, Sunao Oshibe, Atsushi Utsumi, Toshiyuki Nakajima, Kohei Morisaki, Masatoshi Takamatsu, Shoichi Hamada, Junji Nakayama, Yoshiaki Kondo
  • Patent number: 4549175
    Abstract: 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: Grant
    Filed: October 6, 1982
    Date of Patent: October 22, 1985
    Assignees: Dainichi-Nippon Cables, Ltd., Graphica Computer Corporation
    Inventors: Mitsuru Rokunohe, Toshiyuki Nakajima, Kansei Iwata, Hiroyuki Tajima