Patents by Inventor Hisahiro Ishihara

Hisahiro Ishihara 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: 8279289
    Abstract: An optical unit with shake correcting function may include a movable module having a lens, a fixed body supporting the movable module, a shake detection sensor for detecting shake of the movable module, and at least one pair of magnetic drive mechanism for shake correction which is structured on both sides of the movable module so that the movable module is swung with respect to the fixed body on the basis of detection result of the shake detection sensor to correct the shake of the movable module. The magnetic drive mechanism for shake correction is disposed so that a shake correction magnet is held by the fixed body and a shake correction coil is held by the movable module.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: October 2, 2012
    Assignee: Nidec Sankyo Corporation
    Inventors: Akihiro Nagata, Toshiyuki Karasawa, Yuichi Takei, Tadashi Takeda, Hisahiro Ishihara, Shinji Minamisawa, Katsushige Yanagisawa, Kiyoshi Miyazaki
  • Publication number: 20120229926
    Abstract: The lens drive device is equipped with a first supporting body that holds the lens and is movable in the direction of the optical axis, a second supporting body that holds the first supporting body, a fixed body that holds the second supporting body in a manner enabling movement in directions that are roughly orthogonal to the optical axis direction, a first drive mechanism for driving the first supporting body, a second drive mechanism for driving the second supporting body in a first direction, and a third drive mechanism for driving the second supporting body in a second direction. The first supporting body is supported by the second supporting body by means of first supporting members (8, 9), which are formed from an elastic material; and the second supporting body is supported by the fixed body by means of second supporting members, which are formed from an elastic material.
    Type: Application
    Filed: November 13, 2010
    Publication date: September 13, 2012
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Tatsuki Wade, Katsushige Yanagisawa, Shinji Minamisawa, Tadashi Takeda, Kiyoshi Miyazaki, Hisahiro Ishihara
  • Publication number: 20120224840
    Abstract: Disclosed is an optical unit with a shake correction function which is capable of suppressing interference with swinging of a movable module due to the rigidity of a wiring material and a repelling force generated when the wiring material is deformed, even when the wiring material is extended from the movable module. The optical unit uses a flexible wiring board as the wiring material for electrically interconnecting the movable module and outside. In the flexible wiring board, the connecting portion of a movable-side connecting section and an extending unit is provided, in the optical axis direction, on a side where the swing center of the movable module is positioned with respect to the position of the center of supporting a spring member to the movable module. The swing center, the connecting portion, and a fixed-side connecting section are at the same position in the optical axis direction.
    Type: Application
    Filed: September 10, 2010
    Publication date: September 6, 2012
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Shinji Minamisawa, Yoshihiro Hamada, Katsushige Yanagisawa, Shinroku Asakawa, Hisahiro Ishihara, Tadashi Takeda, Kiyoshi Miyazaki
  • Patent number: 8238736
    Abstract: Provided is a photographing optical device, which is able to reliably correct an unintentional movement by hand of a user by improving the constitution of a camera unit driving mechanism for correcting the deflection of a camera unit. In order that a camera unit is made to be rocked to correct the unintentional movement, a photographing optical device includes a first camera unit drive mechanism and a second camera unit drive mechanism, which are so disposed at two side portions sandwiching a pivot portion therebetween as to make a pair. In these camera unit drive mechanisms, camera unit driving magnets are held on the side of the camera unit as a movable body side, and camera unit driving coils are held on the side of a stationary body. The camera unit is pushed toward the pivot portion by a gimbal spring.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: August 7, 2012
    Assignee: Nidec Sankyo Corporation
    Inventors: Toshifumi Tsuruta, Kiyoshi Miyazaki, Tadashi Takeda, Hisahiro Ishihara, Katsushige Yanagisawa, Toshiyuki Karasawa, Yuichi Takei, Akihiro Nagata, Shinji Minamisawa
  • Patent number: 8224169
    Abstract: An optical imaging device, wherein an imaging unit is displaced to correct the vibrations, and the imaging unit is supported on a stationary object by a total of four suspension wires. A first imaging unit drive mechanism and a second imaging unit drive mechanism are provided as a pair at two positions on either side of the optical axis L. In the imaging unit drive mechanisms, imaging unit drive magnets, are held on the imaging unit side, which is the movable side, and imaging unit drive coils, are held on the stationary object side.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: July 17, 2012
    Assignee: Nidec Sankyo Corporation
    Inventors: Toshifumi Tsuruta, Kiyoshi Miyazaki, Tadashi Takeda, Hisahiro Ishihara, Katsushige Yanagisawa, Toshiyuki Karasawa, Yuichi Takei, Akihiro Nagata, Shinji Minamisawa
  • Publication number: 20120140326
    Abstract: Provided is an optical unit comprising a shake detecting sensor which is less likely to unnecessarily vibrate even with the optical unit being designed to have a thinner profile. At a first step in the assembly of an optical unit provided with a shake correction mechanism, a module cover is mounted on a fixed body with a spring member therebetween and a movable module driving mechanism is provided between the module cover and the fixed body. At a second step, an image-capturing unit is inserted into the interior of the module cover by way of a fixed-body-side opening portion and a module-cover-side opening portion, and at a third step, a holding member is attached to a module cover.
    Type: Application
    Filed: August 4, 2010
    Publication date: June 7, 2012
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Tadashi Takeda, Kiyoshi Miyazaki, Katsushige Yanagisawa, Jun Yamashita, Hisahiro Ishihara
  • Publication number: 20120020654
    Abstract: A photographic optical device may include a movable module having a camera module on which a lens and an imaging element are mounted, a support body, and a shake correction mechanism. The movable module may be provided with a sensor for detecting an inclination of the camera module and a cover member which structures an outer peripheral face of the movable module. The shake correction mechanism may be provided with a swing drive mechanism for swinging the movable module so that the optical axis is inclined. The swing drive mechanism may be provided with a drive magnet and a drive coil.
    Type: Application
    Filed: April 8, 2010
    Publication date: January 26, 2012
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Katsushige Yanagisawa, Akihiro Nagata, Tadashi Takeda, Shinji Minamisawa, Yuichi Takei, Hisahiro Ishihara, Toshiyuki Karasawa, Kiyoshi Miyazaki
  • Publication number: 20110262121
    Abstract: An optical unit with shake correcting function may include a movable module on which an optical element is mounted, a fixed body which supports the movable module, a shake detection sensor which detects a shake of the movable module, a shake correction magnetic drive mechanism which swings the movable module on the fixed body on a basis of a detection result of the shake detection sensor to correct the shake of the movable module, and a spring member which is connected with the fixed body and the movable module. A stopper mechanism may be structured between the movable module and the fixed body, and the stopper mechanism may moving ranges of the movable module due to the shake.
    Type: Application
    Filed: October 2, 2009
    Publication date: October 27, 2011
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Katsushige Yanagisawa, Hisahiro Ishihara, Shinji Minamisawa, Yuichi Takei, Tadashi Takeda, Toshiyuki Karasawa, Akihiro Nagata, Kiyoshi Miyazaki
  • Publication number: 20110262122
    Abstract: An imaging optical device may include a movable module having a lens drive device on which a lens and an imaging element are mounted; a support body for supporting the movable module; a rocking drive mechanism for rocking the movable module; and a plate spring for rockably supporting the movable module. The plate spring is provided with a holding section for holding the movable module, a fixed section fixed to the support body, and a spring section for connecting the holding section and the fixed section to each other. The spring section can deform in the direction perpendicular to the optical axis and in the direction of the optical axis.
    Type: Application
    Filed: October 8, 2009
    Publication date: October 27, 2011
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Shinji Minamisawa, Toshiyuki Karasawa, Yuichi Takei, Tadashi Takeda, Akihiro Nagata, Hisahiro Ishihara, Kiyoshi Miyazaki, Katsushige Yanagisawa
  • Patent number: 7986873
    Abstract: An optical unit with shake correcting function may include a movable module on which at least an optical element is mounted, a fixed body which supports the movable module, a shake detection sensor which detects a shake of the movable module, a drive mechanism for shake correction for swinging the movable module on the fixed body on the basis of a detection result of the shake detection sensor to correct the shake of the movable module, and a control section which controls the drive mechanism for shake correction on the basis of the detection result of the shake detection sensor. The shake detection sensor is a gyroscope mounted on the movable module and the control section controls the drive mechanism for shake correction so as to cancel the shake detected by the gyroscope.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: July 26, 2011
    Assignee: Nidec Sankyo Corporation
    Inventors: Hisahiro Ishihara, Toshiyuki Karasawa, Shinji Minamisawa, Yuichi Takei, Tadashi Takeda, Katsushige Yanagisawa, Akihiro Nagata, Kiyoshi Miyazaki
  • Publication number: 20110103782
    Abstract: Provided is a photographing optical device, which is able to reliably correct an unintentional movement by hand of a user by improving the constitution of a camera unit driving mechanism for correcting the deflection of a camera unit. In order that a camera unit is made to be rocked to correct the unintentional movement, a photographing optical device includes a first camera unit drive mechanism and a second camera unit drive mechanism, which are so disposed at two side portions sandwiching a pivot portion therebetween as to make a pair. In these camera unit drive mechanisms, camera unit driving magnets are held on the side of the camera unit as a movable body side, and camera unit driving coils are held on the side of a stationary body. The camera unit is pushed toward the pivot portion by a gimbal spring, which is provided with a plurality of arm portions extending mutually in the same circumferential direction.
    Type: Application
    Filed: November 1, 2010
    Publication date: May 5, 2011
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Toshifumi TSURUTA, Kiyoshi MIYAZAKI, Tadashi TAKEDA, Hisahiro ISHIHARA, Katsushige YANAGISAWA, Toshiyuki KARASAWA, Yuichi TAKEI, Akihiro NAGATA, Shinji MINAMISAWA
  • Publication number: 20110097062
    Abstract: Provided is an optical imaging device which improves the structure of an imaging unit drive mechanism for vibration correction in an imaging unit and can reliably correct the vibrations. An optical imaging device, wherein an imaging unit is displaced to correct the vibrations, and the imaging unit is supported on a stationary object by a total of four suspension wires. A first imaging unit drive mechanism and a second imaging unit drive mechanism are provided as a pair at two positions on either side of the optical axis L. In the imaging unit drive mechanisms, imaging unit drive magnets, are held on the imaging unit side, which is the movable side, and imaging unit drive coils, are held on the stationary object side.
    Type: Application
    Filed: October 28, 2010
    Publication date: April 28, 2011
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Toshifumi TSURUTA, Kiyoshi MIYAZAKI, Tadashi TAKEDA, Hisahiro ISHIHARA, Katsushige YANAGISAWA, Toshiyuki KARASAWA, Yuichi TAKEI, Akihiro NAGATA, Shinji MINAMISAWA
  • Publication number: 20100098394
    Abstract: An optical unit with shake correcting function may include a movable module on which at least an optical element is mounted, a fixed body which supports the movable module, a shake detection sensor which detects a shake of the movable module, a drive mechanism for shake correction for swinging the movable module on the fixed body on the basis of a detection result of the shake detection sensor to correct the shake of the movable module, and a control section which controls the drive mechanism for shake correction on the basis of the detection result of the shake detection sensor. The shake detection sensor is a gyroscope mounted on the movable module and the control section controls the drive mechanism for shake correction so as to cancel the shake detected by the gyroscope.
    Type: Application
    Filed: October 20, 2009
    Publication date: April 22, 2010
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Hisahiro ISHIHARA, Toshiyuki KARASAWA, Shinji MINAMISAWA, Yuichi TAKEI, Tadashi TAKEDA, Katsushige YANAGISAWA, Akihiro NAGATA, Kiyoshi MIYAZAKI
  • Publication number: 20100091120
    Abstract: An optical unit with shake correcting function may include a movable module having a lens, a fixed body supporting the movable module, a shake detection sensor for detecting shake of the movable module, and at least one pair of magnetic drive mechanism for shake correction which is structured on both sides of the movable module so that the movable module is swung with respect to the fixed body on the basis of detection result of the shake detection sensor to correct the shake of the movable module. The magnetic drive mechanism for shake correction is disposed so that a shake correction magnet is held by the fixed body and a shake correction coil is held by the movable module.
    Type: Application
    Filed: October 14, 2009
    Publication date: April 15, 2010
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Akihiro NAGATA, Toshiyuki KARASAWA, Yuichi TAKEI, Tadashi TAKEDA, Hisahiro ISHIHARA, Shinji MINAMISAWA, Katsushige YANAGISAWA, Kiyoshi MIYAZAKI
  • Patent number: 7283433
    Abstract: A manufacturing method for an optical head device includes integrating at least a plurality of light sources and a plurality of diffraction elements with each other as an optical module, adjusting a relative positional relationship of the plurality of diffraction elements each other on the optical module, and then adjusting spot positions of the sub-beams on the optical recording medium by adjusting the entire optical module on the device frame. After that, the optical module is fixed on the device frame.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: October 16, 2007
    Assignee: NIDEC Sankyo Corporation
    Inventors: Hisahiro Ishihara, Katsuya Moriyama, Yasuo Fujimori
  • Publication number: 20050083825
    Abstract: A manufacturing method for an optical head device includes integrating at least a plurality of light sources and a plurality of diffraction elements with each other as an optical module, adjusting a relative positional relationship of the plurality of diffraction elements each other on the optical module, and then adjusting spot positions of the sub-beams on the optical recording medium by adjusting the entire optical module on the device frame. After that, the optical module is fixed on the device frame.
    Type: Application
    Filed: August 25, 2004
    Publication date: April 21, 2005
    Inventors: Hisahiro Ishihara, Katsuya Moriyama, Yasuo Fujimori
  • Patent number: 6577564
    Abstract: An optical pickup device includes a semiconductor laser for emitting forward and backward laser light from front and back emergent end faces thereof, focusing device for focusing the forward laser light emergent from the front emergent end face of said semiconductor laser onto an optical recording medium, a light-receiving element for signal reproduction for detecting return light from the optical recording medium, and a light-guiding system for guiding the return light to said light-receiving element for signal reproduction, said optical pickup device being provided with a light source unit having an arrangement in which said semiconductor laser and said light-receiving element for signal reproduction being incorporated in a common package and shielding device, disposed inside said package of said light source unit, for preventing the light emitted from said semiconductor laser from being incident upon said light-receiving element for signal reproduction.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: June 10, 2003
    Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
    Inventors: Tadashi Takeda, Hisahiro Ishihara, Yoshio Hayashi, Taminori Masuzawa, Yuichi Takei
  • Publication number: 20020181373
    Abstract: An optical pickup device includes a semiconductor laser for emitting forward and backward laser light from front and back emergent end faces thereof, focusing device for focusing the forward laser light emergent from the front emergent end face of said semiconductor laser onto an optical recording medium, a light-receiving element for signal reproduction for detecting return light from the optical recording medium, and a light-guiding system for guiding the return light to said light-receiving element for signal reproduction, said optical pickup device being provided with a light source unit having an arrangement in which said semiconductor laser and said light-receiving element for signal reproduction being incorporated in a common package and shielding device, disposed inside said package of said light source unit, for preventing the light emitted from said semiconductor laser from being incident upon said light-receiving element for signal reproduction.
    Type: Application
    Filed: July 15, 2002
    Publication date: December 5, 2002
    Applicant: KABUSHIKI KAISHA SANKYO SEIKI SEISAKUSHO
    Inventors: Tadashi Takeda, Hisahiro Ishihara, Yoshio Hayashi, Taminori Masuzawa, Yuichi Takei
  • Publication number: 20020150024
    Abstract: An optical head apparatus includes a wiring substrate and an apparatus frame that is made of a resin or another damper material. Optical components that form an optical system are mounted on the wiring substrate. On the other hand, components such as wire suspensions and yoke plate of an object lens driving mechanism, which is a source of vibration, are mounted on the apparatus frame. The apparatus frame is attached to the surface of the wiring substrate. Vibration that may be generated in the object lens driving mechanism is absorbed by the apparatus frame having a damper function, and therefore do not transfer to the optical components mounted on the wiring substrate.
    Type: Application
    Filed: April 3, 2002
    Publication date: October 17, 2002
    Inventors: Katsuya Moriyama, Hisahiro Ishihara, Masao Takemura
  • Publication number: 20020145815
    Abstract: In accordance with the invention, an optical head device comprises a light source, a light receiving element, an optical system that guides light emitted by the light source to an optical recording medium and also guides the light reflected from the optical recording medium to the light receiving element and a base on which the light source, the light receiving element and optical elements constituting the optical system are mounted. An element holder composed of a photosensitive glass is mounted on the base. The element holder has a positioning portion(s) therein for at least one of the optical elements. The base has openings therein at locations through which the optical elements can be assessed from the back thereof.
    Type: Application
    Filed: March 14, 2002
    Publication date: October 10, 2002
    Inventors: Katsuya Moriyama, Hisahiro Ishihara, Masao Takemura