Patents by Inventor Sumio Kawai

Sumio Kawai 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).

  • Publication number: 20140185140
    Abstract: A vibration apparatus includes a plate-shaped dust prevention member, a vibration application member, and an electrode. The vibration application member includes a flexible thin plate-shaped piezoelectric member, and vibrates the dust prevention member. The electrode formed of a conductive thin plate or film, disposed to part or entire holding the piezoelectric member, and partly extends outward relative to the dust prevention member.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 3, 2014
    Applicant: OLYMPUS IMAGING CORP.
    Inventor: Sumio Kawai
  • Publication number: 20140139695
    Abstract: A driving device moves a movable lens in a plane direction intersecting at right angles with an optical axis to correct a shake. The driving device includes a movable frame which holds the movable lens, a fixed frame facing the movable frame, three balls held between the movable frame and the fixed frame, a single tension spring which pulls the movable frame toward the fixed frame to press the three balls, and VCMs which move the movable frame relative to the fixed frame. The tension spring is located inside a triangle that connects the centers of the three balls and outside a holding region where the movable frame holds the movable lens.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 22, 2014
    Applicant: Olympus Imaging Corp.
    Inventor: Sumio KAWAI
  • Patent number: 8665539
    Abstract: A driving control device according to the present invention includes: a fixed member; an operation member arranged to be manually rotatable with respect to the fixed member; a transducer arranged in one of the fixed member and the operation member and arranged to come into contact with an opposed surface of the other of the fixed member and the operation member; a position detecting section for detecting a position of the operation member with respect to the fixed member; and an operation force amount control section for controlling driving of the transducer to change contact friction force generated when the transducer contacts with the fixed member or the operation member. The operation force amount control section controls the transducer such that the contact friction force applied to the operation member when the operation member is manually rotated with respect to the fixed member changes to a sense of click.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: March 4, 2014
    Assignee: Olympus Imaging Corp.
    Inventors: Sumio Kawai, Manabu Ichikawa
  • Publication number: 20140028862
    Abstract: A fixing mechanism 110 fixes a holder 166, which holds an imaging unit 116 movable by a VCM, to a neutral position. A press plate 188 fixed at one end to a frame 167 has first and second protrusions 183 and 184 protruding toward the holder. The holder has first and second depressions 185 and 186 which can engage with the protrusions. The first protrusion and the first depression serve to position the holder with reference to the frame and allow the holder to rotate, with the engagement position as a center. The second protrusion and the second depression prevent the holder from rotating and keep the holder at the neutral position.
    Type: Application
    Filed: July 5, 2013
    Publication date: January 30, 2014
    Inventor: Sumio KAWAI
  • Publication number: 20140009661
    Abstract: A vibrating device includes a dust-screening member and a vibrating member. The dust-screening member is disposed in front of an image surface of an image forming element having the image surface in which an optical image is generated. The dust-screening member has a box shape with about the same small plate thickness as a whole, and includes, in a bottom surface portion of the box shape, a transparent part which spreads from the center of the bottom surface portion. The vibrating member is disposed outside the transparent part of the dust-screening member. The vibrating member is configured to generate, in the bottom surface portion of the dust-screening member, vibration having a vibrational amplitude which is vertical to the bottom surface portion thereof.
    Type: Application
    Filed: September 9, 2013
    Publication date: January 9, 2014
    Applicant: Olympus Imaging Corp.
    Inventor: Sumio Kawai
  • Patent number: 8605194
    Abstract: A dust-screening member is shaped like a plate as a whole, and has at least one side that is symmetric with respect to a virtual axis on a surface of the member. A vibrating member is adjacent to one side of the dust-screening member, arranged on the surface along the one side, and configured to produce, at the surface, vibration having a vibrational amplitude perpendicular to the surface. A drive unit is configured to drive the vibrating member to produce the vibration on the surface, such that peak ridges of the vibration form a closed loop and an area including a center of the closed loop is surrounded by a node area having almost no vibrational amplitude.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: December 10, 2013
    Assignees: Olympus Imaging Corp., Olympus Corporation
    Inventors: Sumio Kawai, Takashi Miyazawa, Kimitaka Watanabe
  • Patent number: 8599302
    Abstract: A vibrating device includes a dust-screening member and a vibrating member. The dust-screening member is disposed in front of an image surface of an image forming element having the image surface in which an optical image is generated. The dust-screening member has a box shape with about the same small plate thickness as a whole, and includes, in a bottom surface portion of the box shape, a transparent part which spreads from the center of the bottom surface portion. The vibrating member is disposed outside the transparent part of the dust-screening member. The vibrating member is configured to generate, in the bottom surface portion of the dust-screening member, vibration having a vibrational amplitude which is vertical to the bottom surface portion thereof.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: December 3, 2013
    Assignee: Olympus Imaging Corp.
    Inventor: Sumio Kawai
  • Patent number: 8548318
    Abstract: A dust-screening member is shaped like a plate as a whole, and has at least one side that is symmetric with respect to a virtual axis on a surface of the member. A vibrating member is adjacent to one side of the dust-screening member, arranged on the surface along the one side, and configured to produce, at the surface, vibration having a vibrational amplitude perpendicular to the surface. A drive unit is configured to drive the vibrating member to produce the vibration on the surface, such that peak ridges of the vibration form a closed loop and an area including a center of the closed loop is surrounded by a node area having almost no vibrational amplitude. When a thickness of the dust-screening member is assumed to be tg and a thickness of the vibrating member is assumed to be tp, tg/tp has a dimension of 0.8.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: October 1, 2013
    Assignees: Olympus Imaging Corp., Olympus Corporation
    Inventors: Sumio Kawai, Takashi Miyazawa, Yusuke Rimmi
  • Publication number: 20130235458
    Abstract: A vibrating device includes a transducer including a plate-like dust-proof member and a vibration-applying member configured to vibrate the dust-proof member, a holder arranged a predetermined space apart from the dust-proof member, a sealing member configured to seal a space between the dust-proof member and the holder, and a pressing supporting member having formed therein pressing sections configured to press the dust-proof member, supporting sections for maintaining supporting of the dust-proof member or the vibration-applying member when an external force is applied to the dust-proof member, and fixing sections with respect to the holder. The pressing sections are respectively provided in positions symmetrical to each other across an imaginary axis passing a center of gravity of the transducer. Rigidity of the supporting sections is set higher than rigidity of the pressing sections.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 12, 2013
    Applicant: OLYMPUS IMAGING CORP.
    Inventor: Sumio KAWAI
  • Publication number: 20130093937
    Abstract: An operation device includes a fixed member, an operation member arranged to be manually rotatable, a load section configured to apply a predetermined load to the operation member, a transducer configured to come into friction contact with the load section, a position detecting section configured to detect a relative position of the operation member with respect to the fixed member or the load section, an operation mode setting section, and an operation sense control section configured to control oscillation applied to the load section by the transducer to thereby change a sense of operation obtained from the operation member when the operation member is rotated. The operation sense control section causes, on the basis of an output from the position detecting section, the operation member to generate a sense of click corresponding to the set operation mode.
    Type: Application
    Filed: September 12, 2012
    Publication date: April 18, 2013
    Applicant: OLYMPUS IMAGING CORP.
    Inventor: Sumio KAWAI
  • Patent number: 8368798
    Abstract: A dust-screening member is shaped like a plate as a whole. A vibrating member is adjacent to one side of the dust-screening member and arranged on the surface along the one side. A drive unit is configured to drive the vibrating member to produce a vibration having a vibrational amplitude perpendicular to the surface, on the surface, such that peak ridges of the vibration form a closed loop and an area including a center of the closed loop surrounded by a node area having almost no vibrational amplitude. When a length of a side in a dust-screening member virtual rectangle corresponding to a short side of a vibrating member virtual rectangle is assumed to be LFw, and a length of short side of the vibrating member virtual rectangle is assumed to be WE, WF/LFw has a dimension of 0.095 or greater and 0.105 or less.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: February 5, 2013
    Assignees: Olympus Imaging Corp., Olympus Corporation
    Inventors: Sumio Kawai, Takashi Miyazawa, Yusuke Rimmi
  • Publication number: 20130010137
    Abstract: A photographing apparatus includes: a taking lens including a movable focusing lens; an image pickup portion that converts an optical image obtained via the taking lens into an image signal; a movement determining portion that determines movement of the photographing apparatus in an optical axis direction of the taking lens; and a recording portion that continuously records therein a plurality of images obtained by the image pickup portion with the focusing lens being set to a fixed position so that the taking lens is at a predetermined focused position as the photographing apparatus moves in the optical axis direction of the taking lens.
    Type: Application
    Filed: June 25, 2012
    Publication date: January 10, 2013
    Applicant: OLYMPUS IMAGING CORP.
    Inventor: Sumio Kawai
  • Patent number: 8351781
    Abstract: A dust-screening member is shaped like a plate as a whole. A vibrating member is adjacent to one side of the dust-screening member, arranged on the surface along the one side, and configured to produce, at the surface, vibration having a vibrational amplitude perpendicular to the surface. A drive unit is configured to drive the vibrating member to produce the vibration on the surface, such that peak ridges of the vibration form a closed loop and an area including a center of the closed loop is surrounded by a node area having almost no vibrational amplitude. When a length of a side in a dust-screening member virtual rectangle corresponding to a long side of a vibrating member virtual rectangle is assumed to be LF, and a length of a long side in the vibrating member virtual rectangle is assumed to be LPFF, LPFF/LF has a dimension of 0.7.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: January 8, 2013
    Assignees: Olympus Imaging Corp., Olympus Corporation
    Inventors: Sumio Kawai, Takashi Miyazawa, Yusuke Rimmi
  • Publication number: 20120287328
    Abstract: A driving control device according to the present invention includes: a fixed member; an operation member arranged to be manually rotatable with respect to the fixed member; a transducer arranged in one of the fixed member and the operation member and arranged to come into contact with an opposed surface of the other of the fixed member and the operation member; a position detecting section for detecting a position of the operation member with respect to the fixed member; and an operation force amount control section for controlling driving of the transducer to change contact friction force generated when the transducer contacts with the fixed member or the operation member. The operation force amount control section controls the transducer such that the contact friction force applied to the operation member when the operation member is manually rotated with respect to the fixed member changes to a sense of click.
    Type: Application
    Filed: February 29, 2012
    Publication date: November 15, 2012
    Applicant: Olympus Imaging Corporation
    Inventors: Sumio KAWAI, Manabu ICHIKAWA
  • Publication number: 20120268642
    Abstract: Provided are a driving apparatus and an imaging device having the driving apparatus mounted thereon, the driving apparatus being capable of performing, with a simple configuration, driving in the Z-axis direction in addition to driving in a direction along the XY plane, reducing friction at the time of driving, and performing precise position holding at the time of stop. A driving apparatus includes: a frame, a contact body supported by the frame; a holder pressed against the contact body to be supported thereby; a VCM for relatively moving the frame in a direction along a support plane formed by the contact body; and a transducer for displacing, relative to the frame, the contact body in the Z-axis direction. When driving, the transducer causes the contact body to vibrate in the Z-axis direction so as to reduce a frictional force between the contact body and the holder.
    Type: Application
    Filed: April 17, 2012
    Publication date: October 25, 2012
    Applicant: OLYMPUS IMAGING CORPORATION
    Inventor: Sumio Kawai
  • Patent number: 8253853
    Abstract: A vibrating device includes a dust-screening member which is shaped like a plate as a whole and has at least one side that is symmetric with respect to a symmetry axis, and a vibrating member secured to the dust-screening member and configured to produce, at the dust-screening member, vibration having a vibrational amplitude perpendicular to a surface of the dust-screening member.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: August 28, 2012
    Assignees: Olympus Corporation, Olympus Imaging Corp.
    Inventors: Sumio Kawai, Takashi Miyazawa, Hironori Ichihara
  • Patent number: 8253838
    Abstract: A vibrating device includes a drive unit configured to drive a vibrating member to produce vibration Z (x, y) at a dust-screening member, the vibration being expressed as follows: Z(x,y)=Wmn(x,y)·cos(?)+Wnm(x,y)·sin(?) where Z (x, y) is vibration at a given point P (x, y) on the dust-screening member, m and n are positive integers including 0, indicating the order of natural vibration corresponding to a vibrational mode, W mn ? ( x , y ) = sin ? ( n ? ? ? · x + ? 2 ) · sin ? ( m ? ? ? · y + ? 2 ) , ? W nm ? ( x , y ) = sin ? ( m ? ? ? · x + ? 2 ) · sin ? ( n ? ? ? · y + ? 2 ) , and ? is +?/4 or ranges from ??/8 to ??/4. The dust-screening member is shaped such that the ratio of length of either short side to either long side of a virtual rectangle is 0.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: August 28, 2012
    Assignees: Olympus Imaging Corp., Olympus Corporation
    Inventors: Sumio Kawai, Takashi Miyazawa
  • Patent number: 8243184
    Abstract: A vibration control unit inputs an electrical signal to a vibrating member to generate, in a light-transmitting region of a dust-screening member, vibration forming a plurality of ridges of peaks defining a closed loop around a virtual intersection at which a virtual vibrational axis passing the half-length point of the vibrating member intersects with a virtual vibrational axis passing the half-length point of the dust-screening member. For example, the vibration is vibration whose peak including the virtual intersection gradually increases in terms of amplitude as the amplitude of the peak approaches the virtual intersection, and becomes the largest in terms of amplitude at the virtual intersection. The dust-screening member and the vibrating member have the following relation: 1.2?Ts/Tg?1.6, where Tg is the thickness of the thickness of the dust-screening member, and Ts is the thickness of the vibrating member.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: August 14, 2012
    Assignee: Olympus Imaging Corp
    Inventor: Sumio Kawai
  • Patent number: 8218059
    Abstract: A digital camera of the invention includes: an image pickup device; a dust-proof filter including an area disposed so as to face an image pickup surface of the image pickup device with a predetermined distance; a piezoelectric device for vibration application for vibrating not only a surface of the dust-proof filter but also inside of the dust-proof filter; and a piezoelectric device for vibration absorption for absorbing a part of vibration of the dust-proof filter in a predetermined cycle. When a wavelength of vibration generated in the dust-proof filter by vibration of the piezoelectic device for vibration application is defined as ?, and an odd number as k, the piezoelectric device for vibration application and the piezoelectric device for vibration absorption are arranged separately from each other at positions on the dust-proof filter such that a distance between centers of the devices is expressed by k×?/4.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: July 10, 2012
    Assignee: Olympus Imaging Corp
    Inventor: Sumio Kawai
  • Patent number: 8218060
    Abstract: An imaging apparatus includes: an image-forming element; an optical element including a light-transmitting portion disposed so as to face an image surface of the image-forming element; a vibration-application member arranged at a position other than a position of the light-transmitting portion of the optical element, for vibrating a surface of the optical element and inside of the optical element; and a vibration-absorption member arranged at a position opposed to the vibration-application member, for absorbing a part of vibration of the optical element in a predetermined cycle, wherein when a wavelength of vibration generated in the optical element by vibration of the vibration-application member is defined as ?, and an odd number as k, the vibration-application member and the vibration-absorption member are arranged separately from each other at positions on the optical element such that a distance between centers of the members is expressed by k×?/4.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: July 10, 2012
    Assignee: Olympus Imaging Corporation
    Inventor: Sumio Kawai