Patents by Inventor Kyoji Kasuga

Kyoji Kasuga 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: 9804354
    Abstract: A part (91, 92) of a lower plate spring (9) of a lens driving device (1) includes a base-fixed section (911, 921) fixed to a base (11), a lens holder fixing section (912, 922) fixed to a lens holder (8), and an arm section (913, 923) connecting the base-fixed section (911, 921) and the lens holder fixing section (912, 922) to each other, the base-fixed section (911, 921) including a terminal connection section (911b, 921b) near which an elastic section (911c, 921c) is provided.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: October 31, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kyoji Kasuga
  • Publication number: 20170285336
    Abstract: In a camera module (51), a lid glass (15) protrudes from a sensor cover (14) toward an image pickup lens (1), and a base section (9) includes an overhanging part (9b) overhanging in such a manner as to cover part of the lid glass (15).
    Type: Application
    Filed: June 21, 2017
    Publication date: October 5, 2017
    Inventor: Kyoji Kasuga
  • Patent number: 9759887
    Abstract: According to a camera module (1), a lens barrel (2) and a lens holder (8) adhere to each other via an adhesive layer (12), and the lens barrel (2) has a recess (2a) having a bottom surface (2a3) that is located between an upper side surface (8a1) and a lower side surface (8a2) of a groove (8a).
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: September 12, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kyoji Kasuga
  • Patent number: 9733473
    Abstract: In a camera module (51), a lid glass (15) protrudes from a sensor cover (14) toward an image pickup lens (1), and a base section (9) includes an overhanging part (9b) overhanging in such a manner as to cover part of the lid glass (15).
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: August 15, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kyoji Kasuga
  • Publication number: 20170108695
    Abstract: In a camera module (51), a lid glass (15) protrudes from a sensor cover (14) toward an image pickup lens (1), and a base section (9) includes an overhanging part (9b) overhanging in such a manner as to cover part of the lid glass (15).
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Inventor: Kyoji Kasuga
  • Patent number: 9547153
    Abstract: In a camera module (51), a lid glass (15) protrudes from a sensor cover (14) toward an image pickup lens (1), and a base section (9) includes an overhanging part (9b) overhanging in such a manner as to cover part of the lid glass (15).
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: January 17, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kyoji Kasuga
  • Publication number: 20150370034
    Abstract: According to a camera module (1), a lens barrel (2) and a lens holder (8) adhere to each other via an adhesive layer (12), and the lens barrel (2) has a recess (2a) having a bottom surface (2a3) that is located between an upper side surface (8a1) and a lower side surface (8a2) of a groove (8a).
    Type: Application
    Filed: December 9, 2013
    Publication date: December 24, 2015
    Inventor: Kyoji KASUGA
  • Publication number: 20150355432
    Abstract: A part (91, 92) of a lower plate spring (9) of a lens driving device (1) includes a base-fixed section (911, 921) fixed to a base (11), a lens holder fixing section (912, 922) fixed to a lens holder (8), and an arm section (913, 923) connecting the base-fixed section (911, 921) and the lens holder fixing section (912, 922) to each other, the base-fixed section (911, 921) including a terminal connection section (911b, 921b) near which an elastic section (911c, 921c) is provided.
    Type: Application
    Filed: October 1, 2013
    Publication date: December 10, 2015
    Inventor: Kyoji KASUGA
  • Publication number: 20150168685
    Abstract: In a camera module (51), a lid glass (15) protrudes from a sensor cover (14) toward an image pickup lens (1), and a base section (9) includes an overhanging part (9b) overhanging in such a manner as to cover part of the lid glass (15).
    Type: Application
    Filed: February 26, 2015
    Publication date: June 18, 2015
    Inventor: Kyoji Kasuga
  • Patent number: 9046678
    Abstract: In a camera module (51), a lid glass (15) protrudes from a sensor cover (14) toward an image pickup lens (1), and a base section (9) includes an overhanging part (9b) overhanging in such a manner as to cover part of the lid glass (15).
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: June 2, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kyoji Kasuga
  • Publication number: 20130027602
    Abstract: In a camera module (51), a lid glass (15) protrudes from a sensor cover (14) toward an image pickup lens (1), and a base section (9) includes an overhanging part (9b) overhanging in such a manner as to cover part of the lid glass (15).
    Type: Application
    Filed: July 24, 2012
    Publication date: January 31, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Kyoji Kasuga
  • Patent number: 8102752
    Abstract: An optical head comprises a laser holder retaining a laser diode, and a holder support retaining the laser holder, and irradiates an information storage medium with laser light from the laser diode to perform recording/reproduction of information. In this optical head, the laser holder is a frame structure that fixes the laser diode, having an abutment portion protruding from a base side of the frame structure. Also, the holder support has a receiving surface that supports by abutment the abutment portion, and a through-hole that lets pass the laser light. The receiving surface is a plane approximately perpendicular to an optical axis of the optical head, the abutment portion being made as an arc surface having a central axis that passes through an emission point of the laser diode and is perpendicular to the optical axis.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: January 24, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kyoji Kasuga, Akiho Yoshizawa
  • Patent number: 8094391
    Abstract: A driving device includes: a bending displacement member (1A), partially fixed, which is excited by electrical control to be bent and displaced; a bending displacement member (1B), partially fixed, which is excited by electrical control to be bent and displaced; an elastic member (2) joined to the bending displacement members (1A, 1B); a friction member (3), joined to the elastic member (2), which is capable of partially making contact with a body tube (4); and a camera module housing (6) capable of housing the bending displacement members (1A, 1B), the elastic member (2), and the body tube (4). The bending displacement members (1A, 1B) may be disposed along an inner wall of the camera module housing (6). The driving device may also include control means for exciting the bending displacement members (1A, 1B).
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: January 10, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tsuneo Fujiwara, Kyoji Kasuga, Tomohiro Egawa
  • Publication number: 20100149665
    Abstract: In order to achieve a low-profile driving device, the driving device includes: a bending displacement member (1A), partially fixed, which is excited by electrical control to be bent and displaced; a bending displacement member (1B), partially fixed, which is excited by electrical control to be bent and displaced; an elastic member (2) joined to the bending displacement members (1A, 1B); a friction member (3), joined to the elastic member (2), which is capable of partially making contact with a body tube (4); and a camera module housing (6) capable of housing the bending displacement members (1A, 1B), the elastic member (2), and the body tube (4). The bending displacement members (1A, 1B) are disposed along an inner wall of the camera module housing (6).
    Type: Application
    Filed: February 6, 2008
    Publication date: June 17, 2010
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tsuneo Fujiwara, Kyoji Kasuga, Tomohiro Egawa
  • Patent number: 7461388
    Abstract: An optical disk device including a tray in which recording mediums having differing outer diameters can be selectively mounted. The tray carries the recording media into the main body of the optical disk device wherein it is, chucked by a turntable. Holding members for holding the recording medium at a predetermined position relative to a mounting face of the tray are provided in a front portion and a rear portion respectively relative to the transport direction of the tray. At least one of the holding members is movable between a first holding position for holding a small diameter recording medium, and a second holding position for holding a large diameter recording medium. The holding member is biased toward the first holding position by a biasing member.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: December 2, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kyoji Kasuga
  • Publication number: 20080285163
    Abstract: An actuator of the present invention includes a holder 8 for holding a lens 13; an upper guide 3 and a base 9 for supporting the holder 8 so that the holder 8 can move in the optical axis direction of the lens 13; and spherical bodies 2, disposed in spaces between the holder and the upper guide 3 and between the holder 8 and the base 9, which are able to rotate in the spaces, respectively, the upper guide 3 and the base 9 supporting the holder 8 via the spherical bodies 2. This makes it possible to provide a compact and slim actuator excellent in impact resistance.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 20, 2008
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kyoji Kasuga, Seiichi Nagatome
  • Patent number: 7424726
    Abstract: An optical disc device is provided with a tray for mounting a disc or a cartridge thereon, a chassis that is laid out under the tray, and a top plate that is laid out above the tray. The optical disc device comprises two types of holding mechanisms that form either a single disc mounting space or a cartridge mounting space according to a shape of a single disc or a cartridge to be mounted in the tray, and hold the single disc or the cartridge in the respective mounting space.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: September 9, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kyoji Kasuga
  • Publication number: 20070286037
    Abstract: A light source, an objective lens which concentrates light from the light source onto an information recording surface of an information storage medium, and a spherical aberration correction mechanism provided on a light path between the light source of the objective lens are provided. The spherical aberration correction mechanism includes a piezoelectric element for moving a coupling lens, a photo interrupter which detects whether the coupling lens has been moved to an initial position, and a spherical aberration correction element control circuit which moves the coupling lens, which has been moved to the initial position, to one of first to n-th (n is an integer not less than 2) positions where light is concentrated onto an information recording surface of one of first to n-th layer of the information storage medium, the distances between the initial position to the respective first to n-th positions having been determined in advance.
    Type: Application
    Filed: June 6, 2007
    Publication date: December 13, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Osamu Miyazaki, Nobumasa Ono, Kyoji Kasuga
  • Publication number: 20070101346
    Abstract: An optical disc device is provided with a tray for mounting a disc or a cartridge thereon, a chassis that is laid out under the tray, and a top plate that is laid out above the tray. The optical disc device comprises two types of holding mechanisms that form either a single disc mounting space or a cartridge mounting space according to a shape of a single disc or a cartridge to be mounted in the tray, and hold the single disc or the cartridge in the respective mounting space.
    Type: Application
    Filed: April 28, 2004
    Publication date: May 3, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Kyoji Kasuga
  • Publication number: 20070014204
    Abstract: An optical head comprises a laser holder retaining a laser diode, and a holder support retaining the laser holder, and irradiates an information storage medium with laser light from the laser diode to perform recording/reproduction of information. In this optical head, the laser holder is a frame structure that fixes the laser diode, having an abutment portion protruding from a base side of the frame structure. Also, the holder support has a receiving surface that supports by abutment the abutment portion, and a through-hole that lets pass the laser light. The receiving surface is a plane approximately perpendicular to an optical axis of the optical head, the abutment portion being made as an arc surface having a central axis that passes through an emission point of the laser diode and is perpendicular to the optical axis.
    Type: Application
    Filed: June 27, 2006
    Publication date: January 18, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kyoji Kasuga, Akiho Yoshizawa