Patents by Inventor Tsunao Hombo

Tsunao Hombo 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: 9755342
    Abstract: In a cable connecting a plurality of printed-circuit boards, terminals of connectors to which conductors disposed adjacent to conductors that supply power are connected are connected to ground via respective capacitors.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: September 5, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tsunao Hombo
  • Publication number: 20170069991
    Abstract: In a cable connecting a plurality of printed-circuit boards, terminals of connectors to which conductors disposed adjacent to conductors that supply power are connected are connected to ground via respective capacitors.
    Type: Application
    Filed: September 1, 2016
    Publication date: March 9, 2017
    Inventor: Tsunao Hombo
  • Patent number: 8985759
    Abstract: An image forming apparatus includes a first power source configured to supply power for driving a load to be used for image formation via a first power line, a load control circuit configured to control driving of the load, a control circuit configured to output control data for the load control circuit to control the load, a second power source configured to supply power for the load control circuit via a second power line provided separately from the first power line, a superimposing circuit configured to superimpose the control data output from the control circuit onto the second power line, and a separation circuit configured to separate the control data from the second power line, on which the control data is superimposed and sent, and to output the control data to the load control circuit.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: March 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tsunao Hombo
  • Patent number: 8422050
    Abstract: An apparatus is provided that can perform distributed control for a plurality of operation units, without concentrating control in a single device. The apparatus includes a plurality of modules that respectively correspond to a plurality of operation units, each module including a communication device, a functional block setting device and a functional block connected with a corresponding operation unit. The functional block has a register that holds, in an updateable condition, control values relating to various controls of the corresponding operation unit. Each module is triggered by an operation start signal input to a start terminal of the communication device to start an operation for controlling a corresponding operation unit in accordance with each control value held in the register device.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: April 16, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiko Kitahara, Junichi Into, Eiichi Motoyama, Masao Watanabe, Tsunao Hombo, Akihiko Sakai, Masatoshi Yaginuma
  • Patent number: 8373908
    Abstract: A document reading apparatus includes a housing that has conductive characteristics, a platen that is provided with the housing and that has translucency, and an image reading unit that is arranged so as to be movable in the housing and that reads a document placed on the platen. In particular, at least one opening is provided in a region of the housing that overlaps with the image reading unit as viewed in a direction orthogonal to the platen.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: February 12, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tsunao Hombo
  • Patent number: 8355145
    Abstract: The image forming apparatus includes, even when an abnormality of operation occurs in any of a plurality of modules to which an assigned operation in a plurality of operations for an image formation is assigned and which autonomously executes the assigned operation, each of the modules can autonomously perform a particular operation for eliminating an abnormality of operation at a module in which an abnormality occurs. When detecting the module in which the abnormality of operation occurs based on operation abnormality generation condition information in each of the modules stored in the shared data module, the plurality of modules provided in the image forming apparatus each perform an operation (a particular operation) for eliminating the abnormality of operation in accordance with the module in which the abnormality of operation occurs and the contents of the abnormality of operation.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: January 15, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eiichi Motoyama, Junichi Into, Toshihiko Kitahara, Masao Watanabe, Tsunao Hombo, Akihiko Sakai, Masatoshi Yaginuma
  • Patent number: 8156562
    Abstract: An information processing apparatus determines whether an authentication portion on an image forming apparatus side can authenticate user authentication information input on the information processing apparatus side. If it is determined that the authentication portion on the image forming apparatus side can authenticate the user authentication information input on the information processing apparatus side, transmission of image data from the information processing apparatus to the image forming apparatus is controlled.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: April 10, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Michio Kawase, Shunichi Komatsu, Michiharu Masuda, Yoshihito Osari, Tsunao Hombo
  • Publication number: 20110142479
    Abstract: An image forming apparatus includes a first power source configured to supply power for driving a load to be used for image formation via a first power line, a load control circuit configured to control driving of the load, a control circuit configured to output control data for the load control circuit to control the load, a second power source configured to supply power for the load control circuit via a second power line provided separately from the first power line, a superimposing circuit configured to superimpose the control data output from the control circuit onto the second power line, and a separation circuit configured to separate the control data from the second power line, on which the control data is superimposed and sent, and to output the control data to the load control circuit.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 16, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Tsunao Hombo
  • Patent number: 7751593
    Abstract: An image reading apparatus having a security function that realizes highly precise authentication and high operability while suppressing an increase in manufacturing cost. An original 10 is placed on a platen glass 12, and an authentication card 80 is placed on a security information reading section 101. An image sensor 25 reads an image of the original 10 placed on the platen glass 12 and security information stored in the authentication card 80 placed on the security information reading section 101. A control section 4 controls processing of the image of the original 10 read by the image sensor 25 in accordance with the security information read by the image sensor 25.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: July 6, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tsunao Hombo
  • Publication number: 20100027080
    Abstract: A document reading apparatus includes a housing that has conductive characteristics, a platen that is provided with the housing and that has translucency, and an image reading unit that is arranged so as to be movable in the housing and that reads a document placed on the platen. In particular, at least one opening is provided in a region of the housing that overlaps with the image reading unit as viewed in a direction orthogonal to the platen.
    Type: Application
    Filed: July 20, 2009
    Publication date: February 4, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Tsunao Hombo
  • Publication number: 20090278632
    Abstract: An image reading apparatus that operates in accordance with a driving signal at a predetermined frequency includes a document illumination board with a wiring pattern made of a conductor, wherein an inductor is provided at an interval smaller than a predetermined interval onto a wiring pattern having a length equal to or larger than a predetermined length at which resonance is generated due to the driving signal having the predetermined frequency.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 12, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Tsunao Hombo
  • Patent number: 7453699
    Abstract: A digital electronic apparatus includes a plurality of units and a cable. The plurality of units have metallic housings and are combined such that surfaces of the metallic housings are opposed to each other. The cable is laid on a surface of the metallic housing of at least one of the units. The surface on which the cable is laid is other than the surfaces of the metallic housings that are opposed to each other.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: November 18, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideho Inagawa, Hiroyuki Yamaguchi, Shin'ichi Nishimura, Daishiro Sekijima, Tsunao Hombo, Masafumi Kamei
  • Publication number: 20070117427
    Abstract: A digital electronic apparatus includes a plurality of units and a cable. The plurality of units have metallic housings and are combined such that surfaces of the metallic housings are opposed to each other. The cable is laid on a surface of the metallic housing of at least one of the units. The surface on which the cable is laid is other than the surfaces of the metallic housings that are opposed to each other.
    Type: Application
    Filed: January 19, 2007
    Publication date: May 24, 2007
    Applicant: Canon Kabushiki Kaisha
    Inventors: Hideho Inagawa, Hiroyuki Yamaguchi, Shin'ichi Nishimura, Daishiro Sekijima, Tsunao Hombo, Masafumi Kamei
  • Publication number: 20070086037
    Abstract: An apparatus is provided that can perform. distributed control for a plurality of operation units, without concentrating control in a single device. The apparatus includes a plurality of modules that respectively correspond to a plurality of operation units, each module including a communication device, a functional block setting device and a functional block connected with a corresponding operation unit. The functional block has a register that holds, in an updateable condition, control values relating to various controls of the corresponding operation unit. Each module is triggered by an operation start signal input to a start terminal of the communication device to start an operation for controlling a corresponding operation unit in accordance with each control value held in the register device.
    Type: Application
    Filed: March 16, 2006
    Publication date: April 19, 2007
    Applicant: Canon Kabushiki Kaisha
    Inventors: Toshihiko Kitahara, Junichi Into, Eiichi Motoyama, Masao Watanabe, Tsunao Hombo, Akihiko Sakai, Masatoshi Yaginuma
  • Patent number: 7189923
    Abstract: A digital electronic apparatus includes a plurality of units and a cable. The plurality of units have metallic housings and are combined such that surfaces of the metallic housings are opposed to each other. The cable is laid on a surface of the metallic housing of at least one of the units. The surface on which the cable is laid is other than the surfaces of the metallic housings that are opposed to each other.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: March 13, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideho Inagawa, Hiroyuki Yamaguchi, Shin′ichi Nishimura, Daishiro Sekijima, Tsunao Hombo, Masafumi Kamei
  • Publication number: 20060250635
    Abstract: The invention provides an information processing apparatus in which print data is inputted, whether or not authentication information has been added to the print data is discriminated, and an output destination of the print data is controlled on the basis of the discrimination result, thereby making it possible to prevent the print data from being sent to an image output apparatus of a low security level.
    Type: Application
    Filed: July 7, 2006
    Publication date: November 9, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventors: Michiharu Masuda, Tsunao Hombo, Shunichi Komatsu, Michio Kawase, Yoshihito Osari
  • Publication number: 20060222352
    Abstract: An information processing apparatus determines whether an authentication portion on an image forming apparatus side can authenticate user authentication information input on the information processing apparatus side. If it is determined that the authentication portion on the image forming apparatus side can authenticate the user authentication information input on the information processing apparatus side, transmission of image data from the information processing apparatus to the image forming apparatus is controlled.
    Type: Application
    Filed: April 5, 2006
    Publication date: October 5, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Michio Kawase, Shunichi Komatsu, Michiharu Masuda, Yoshihito Osari, Tsunao Hombo
  • Publication number: 20060209341
    Abstract: The image forming apparatus includes, even when an abnormality of operation occurs in any of a plurality of modules to which an assigned operation in a plurality of operations for an image formation is assigned and which autonomously executes the assigned operation, each of the modules can autonomously perform a particular operation for eliminating an abnormality of operation at a module in which an abnormality occurs. When detecting the module in which the abnormality of operation occurs based on operation abnormality generation condition information in each of the modules stored in the shared data module, the plurality of modules provided in the image forming apparatus each perform an operation (a particular operation) for eliminating the abnormality of operation in accordance with the module in which the abnormality of operation occurs and the contents of the abnormality of operation.
    Type: Application
    Filed: March 16, 2006
    Publication date: September 21, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventors: Eiichi Motoyama, Junichi Into, Toshihiko Kitahara, Masao Watanabe, Tsunao Hombo, Akihiko Sakai, Masatoshi Yaginuma
  • Publication number: 20060002591
    Abstract: An image reading apparatus having a security function that realizes highly precise authentication and high operability while suppressing an increase in manufacturing cost. An original 10 is placed on a platen glass 12, and an authentication card 80 is placed on a security information reading section 101. An image sensor 25 reads an image of the original 10 placed on the platen glass 12 and security information stored in the authentication card 80 placed on the security information reading section 101. A control section 4 controls processing of the image of the original 10 read by the image sensor 25 in accordance with the security information read by the image sensor 25.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 5, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventor: Tsunao Hombo
  • Publication number: 20050139369
    Abstract: A digital electronic apparatus includes a plurality of units and a cable. The plurality of units have metallic housings and are combined such that surfaces of the metallic housings are opposed to each other. The cable is laid on a surface of the metallic housing of at least one of the units. The surface on which the cable is laid is other than the surfaces of the metallic housings that are opposed to each other.
    Type: Application
    Filed: December 23, 2004
    Publication date: June 30, 2005
    Applicant: CANON KABUSHIKI KAISHI
    Inventors: Hideho Inagawa, Hiroyuki Yamaguchi, Shin'ichi Nishimura, Daishiro Sekijima, Tsunao Hombo, Masafumi Kamei