Patents Assigned to Canon Denshi Kabushiki Kaisha
  • Patent number: 9152013
    Abstract: A light-quantity control apparatus includes multiple light-quantity control blades each configured to overlap with at least another one of the light-quantity control blades so as to form a light-passing aperture and each configured to rotate to change a size of the light-passing aperture. Each of the multiple light-quantity control blades includes a thick portion and a thin portion. The thick portion forms an outer end portion on an opposite side to the light-passing aperture in a rotation direction of the light-quantity control blade. The thin portion is formed in an aperture side blade area that overlaps with the at least another one of the multiple light-quantity control blades so as to form part of a circular overlap of the multiple light-quantity control blades and that includes an inner edge forming an edge of the light-passing aperture.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: October 6, 2015
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventor: Takahito Yoshizawa
  • Patent number: 9124751
    Abstract: The present invention is applicable to a peripheral device which performs processing based on information from an information processing device. The peripheral device of present invention is characterized by a storage unit, which stores in it a program of controlling of designated processing, and stores in it data for controlling the peripheral device, and by a communication unit which sends the program stored in the storage unit to the information processing device, and by a control unit which controls operation of the peripheral device based on an instruction information written into the storage unit upon execution of the program on the information processing device.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: September 1, 2015
    Assignee: CANON DENSHI KABUSHIKI KAISHA
    Inventors: Taketo Ochiai, Hirokazu Higuchi, Chihiro Hiranuma, Kiyoshi Ito
  • Patent number: 9051141
    Abstract: A sheet conveying apparatus includes an intermediate plate (21b) as a sheet receiving member configured to stack a sheet, a feed roller (22) as a feed rotator configured to feed the sheet stacked on the intermediate plate (21b), and a separation roller (23) as a separation member configured to separate the sheet from a sheet bundle stacked on the intermediate plate (21b). The sheet conveying apparatus further includes a restrict member (60) as a restrict portion disposed so as to reach a position overlapped in a width direction orthogonal to a sheet conveying direction with the feed roller (22) as at least one member among the feed roller (22) and the separation roller (23) and offset in the width direction from the feed roller (22), and restricting a leading end position of the sheet stacked on the intermediate plate (21b).
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: June 9, 2015
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventor: Shinobu Kato
  • Patent number: 9024992
    Abstract: The oscillation element according to the present invention includes a torsion bar mounted on a base, and an oscillating member having a light reflection surface for reflecting light from a light source, which is fixed on the torsion bar protruding from the base. The oscillating member oscillates about a longitudinal axis of the torsion bar with an elastic deformation of the torsion bar, thereby deflecting the light that reflects at the light reflection surface in a direction intersecting the longitudinal axis. The oscillating member has two plates that are joined together so as to sandwich the torsion bar. On joining surfaces of the plates are provided with grooves for receiving the torsion bar, respectively. The plates have a symmetrical shape that the longitudinal axis serves as the axis of symmetry.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: May 5, 2015
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Takayuki Wakabayashi, Naruki Suzuki, Katsumi Arai, Yaomin Zhou
  • Patent number: 9007668
    Abstract: In an image reading system, when an automatic determination mode is designated as a color mode, a scanner does not determine the color of the read image but applies gamma correction to the image data of the image using the first correction characteristic. The scanner transmits the resultant image data to a PC. The PC determines the color of the image indicated by the received image data. When the determined color does not correspond to the first correction characteristic, the PC performs gamma correction of the received image data in accordance with the inverse characteristic of the first correction characteristic and then performs gamma correction using the second correction characteristic corresponding to the determined color.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: April 14, 2015
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Toshifumi Jittou, Kouji Miyanishi
  • Patent number: 9007671
    Abstract: The light-quantity control apparatus includes a base member having an opening allowing light to pass therethrough, a first aperture blade movable in a direction orthogonal to a light passing direction, a second aperture blade rotatable in a surface orthogonal to the light passing direction, and a driving lever to be rotated by a driver to drive the first and second aperture blades. The base member has a protruding portion engaging with a groove portion provided in the first aperture blade, the second aperture blade has a driving cam groove portion with which a driving pin provided in the driving lever slidably engages and a rotation center hole portion with which the protruding portion engages. The second aperture blade is rotated about the protruding portion by sliding of the driving pin with respect to the driving cam groove portion with rotation of the driving lever.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: April 14, 2015
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Takahito Yoshizawa, Kimio Handa
  • Patent number: 8982434
    Abstract: An image processing apparatus includes a reception port capable of receiving a paper document. A discharge port discharges a paper document received from the reception port and serves as an ID card reception port. A conveyance path connects the reception port and the discharge port to each other. A conveyance unit conveys the paper document received from the reception port or the ID card received from the discharge port. An image reading unit, provided on the conveyance path, reads a double-sided image of the paper document or the ID card. An image processing unit matches a first image data output condition obtained by reading, by the image reading unit, the paper document received from the reception port, with a second image data output condition obtained by reading, by the image reading unit, the paper document received from the discharge port.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: March 17, 2015
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventor: Ahimusa Uchida
  • Patent number: 8982172
    Abstract: The oscillation element according to the present invention includes a torsion bar mounted on a base, and an oscillating member having a light reflection surface for reflecting light from a light source, which is fixed on the torsion bar protruding from the base. The oscillating member oscillates about a longitudinal axis of the torsion bar with an elastic deformation of the torsion bar, thereby deflecting the light that reflects at the light reflection surface in a direction intersecting the longitudinal axis. The oscillating member has two plates that are joined together so as to sandwich the torsion bar. On joining surfaces of the plates are provided with grooves for receiving the torsion bar, respectively. The plates have a symmetrical shape that the longitudinal axis serves as the axis of symmetry.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: March 17, 2015
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Takayuki Wakabayashi, Naruki Suzuki, Katsumi Arai, Yaomin Zhou
  • Patent number: 8931777
    Abstract: A multi-feed detection apparatus may include an ultrasonic transmission unit, arranged on one side of a conveyance path configured to convey a sheet-like member, for transmitting an ultrasonic wave toward the conveyance path, an ultrasonic reception unit, arranged on the other side of the conveyance path, for receiving the ultrasonic wave from the ultrasonic transmission unit, and a multi-feed determination unit for determining, based on the reception result of the ultrasonic wave received by the ultrasonic reception unit, whether multi-feed of sheet-like members has occurred. The ultrasonic transmission surface of the ultrasonic transmission unit is inclined with respect to the conveyance path, and the ultrasonic reception surface of the ultrasonic reception unit is arranged to be almost parallel to the conveyance path.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: January 13, 2015
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventor: Katsuhiko Okitsu
  • Patent number: 8914558
    Abstract: The storage unit of a peripheral device has a first storage area and a second storage area. The first storage area stores a plurality of control programs corresponding to a plurality of operating systems of different types. The second storage area is a storage area which is recognized by an information processing apparatus as an external storage device and in which at least one control program is replicated from the first storage area. The information processing apparatus reads out the control program from the second storage recognized by it as the external storage device, and executes the program. The information processing apparatus thus controls the peripheral device.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: December 16, 2014
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Kiyoshi Ito, Hirokazu Higuchi, Ayaka Sato, Yuuki Taguchi
  • Patent number: 8851767
    Abstract: A magnetic driver includes a rotor magnet, a coil bobbin around which a coil is wound, and which has a through hole in a central portion, a yoke including a straight portion to be inserted into the through hole, and an arcuate portion connected to a distal end of the straight portion, a support member which rotatably supports the rotor magnet, and a thrust receiving member which includes an engaging portion to be engaged with the support member, has one surface which regulates one end of the rotor magnet in a thrust direction, and the other surface on which the coil bobbin is placed, and is held between the coil bobbin and the arcuate portion of the yoke. The yoke is assembled as an integrated yoke by inserting the straight portion into the through hole, and fixing the straight portion to the arcuate portion as another member.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: October 7, 2014
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Satoshi Maekawa, Akira Kurosawa
  • Patent number: 8834043
    Abstract: A shutter apparatus includes a shutter base plate having an aperture, a blade group configured to open and close the aperture, a blade driving member configured to drive the blade group, a charge lever configured to rotate the blade driving member, a first roller which is attached to a first axis portion extending from the blade driving member and abuts against the charge lever, a cam member configured to rotate the charge lever, and a second roller which is attached to a second axis portion extending from the charge lever and is configured to trace a cam portion formed on the cam member. The cam member has a flange protruding from the cam portion to periphery of the cam member. And the cam member is arranged so that the second roller is overlapped with the flange in an extending direction of the second axis portion.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: September 16, 2014
    Assignees: Canon Kabushiki Kaisha, Canon Denshi Kabushiki Kaisha
    Inventors: Yuuki Niwamae, Jun Kawanami, Koichi Shimada, Yoshihiro Sekiya
  • Publication number: 20140211259
    Abstract: The present invention is applicable to a peripheral device which performs processing based on information from an information processing device. The peripheral device of present invention is characterized by a storage unit, which stores in it a program of controlling of designated processing, and stores in it data for controlling the peripheral device, and by a communication unit which sends the program stored in the storage unit to the information processing device, and by a control unit which controls operation of the peripheral device based on an instruction information written into the storage unit upon execution of the program on the information processing device.
    Type: Application
    Filed: March 28, 2014
    Publication date: July 31, 2014
    Applicant: CANON DENSHI KABUSHIKI KAISHA
    Inventors: Taketo Ochiai, Hirokazu Higuchi, Chihiro Hiranuma, Kiyoshi Ito
  • Patent number: 8783977
    Abstract: The light-quantity control apparatus includes a stop blade including a stop portion and a supported portion rotatably supported with respect to a base member, a shutter blade having a shutter portion and a supported portion rotatably supported with respect to the base member, and a driving member disposed between the shutter and stop blades and rotating around the light-passing aperture to rotate the stop blade. The stop and shutter blades have tilts in their supported portions toward a same one side in the optical axis direction so that the stop and shutter portions are distant from the supported portions in the optical axis direction. The driving member has a shape concave toward the one side from its outer circumferential side portion to its inner circumferential side portion. A concave space facing the light-passing aperture is formed inside than the stop and shutter blades and the driving member.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: July 22, 2014
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Satoshi Kozu, Naoki Kawakubo, Akira Kurosawa, Mitsuo Shibata
  • Patent number: 8755134
    Abstract: An ND filter that enables relatively easy control of light quantity when used in an iris device and realizes excellent optical performance. The ND filter has a first region having an ND film with a uniform density, a second region having an ND film with a uniform density different from the density of the first region, and a density transition region provided between the first region and the second region. The density transition region has an ND film whose density changes continuously from the density of the first region to the density of the second region.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: June 17, 2014
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Takayuki Wakabayashi, Masayuki Uchiyama, Yasunori Saito, Michio Yanagi
  • Patent number: 8732305
    Abstract: A management server which is connected to a plurality of client terminals via a network, includes a storage unit adapted to store a management policy including usage-permitted time periods of the plurality of client terminals, and an application unit adapted to read out from the storage unit the management policy including the usage-permitted time period of the client terminal to be managed, output the readout management policy to the client terminal, and apply the usage-permitted time period to the client terminal, and extends the usage-permitted time period of the client terminal in accordance with a state of the client terminal.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: May 20, 2014
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Takakazu Yokoyama, Hiroki Miura, Shinsaku Kita, Jyunya Emae, Kouzou Mikami, Satoshi Yonekawa
  • Patent number: 8719364
    Abstract: A network management system transmits/receives an email via a network; saves, in a database, first history information including the address of at least one of the destination and the source of the email written in the email; receives transmission information in which access information for accessing a web page via a network is written; saves, in the database, second history information including the access information written in the transmission information; inputs authentication information for identifying a user; and selectively displays the first history information saved in the first saving unit and the second history information saved in the second saving unit in a predetermined display format on a display unit by switching between the first history information and the second history information based on an instruction inputted by a user when the inputted authentication information is identical to previously registered information.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: May 6, 2014
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Shinsaku Kita, Ken Sakakibara
  • Patent number: 8717599
    Abstract: The present invention is applicable to a peripheral device which performs processing based on information from an information processing device. The peripheral device of present invention is characterized by a storage unit, which stores in it a program of controlling of designated processing, and stores in it data for controlling the peripheral device, and by a communication unit which sends the program stored in the storage unit to the information processing device, and by a control unit which controls operation of the peripheral device based on an instruction information written into the storage unit upon execution of the program on the information processing device.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: May 6, 2014
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Taketo Ochiai, Hirokazu Higuchi, Chihiro Hiranuma, Kiyoshi Ito
  • Publication number: 20140119719
    Abstract: The light-quantity control apparatus includes a stop blade including a stop portion and a supported portion rotatably supported with respect to a base member, a shutter blade having a shutter portion and a supported portion rotatably supported with respect to the base member, and a driving member disposed between the shutter and stop blades and rotating around the light-passing aperture to rotate the stop blade. The stop and shutter blades have tilts in their supported portions toward a same one side in the optical axis direction so that the stop and shutter portions are distant from the supported portions in the optical axis direction. The driving member has a shape concave toward the one side from its outer circumferential side portion to its inner circumferential side portion. A concave space facing the light-passing aperture is formed inside than the stop and shutter blades and the driving member.
    Type: Application
    Filed: January 2, 2014
    Publication date: May 1, 2014
    Applicant: CANON DENSHI KABUSHIKI KAISHA
    Inventors: Satoshi Kozu, Naoki Kawakubo, Akira Kurosawa, Mitsuo Shibata
  • Patent number: D709071
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: July 15, 2014
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Shinobu Kato, Tatsuya Nishi, Yuuho Shigeta, Jun Tanaka, Kazuaki Sakuta