Patents by Inventor Katsuhiko Yanagawa

Katsuhiko Yanagawa 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: 20140124936
    Abstract: A power semiconductor module has an insulating layer; a copper base substrate having first and second copper blocks, either the first or the second copper block being fixed on one side and the other being fixed on the other side of the insulating layer; a plurality of power semiconductor elements using silicon carbide, and having one side fixed onto the first copper block with a conductive bond layer; a plurality of implant pins fixed to the other side of each of the plurality of power semiconductor elements with a conductive bond layer; a printed circuit board fixed to the implant pins and disposed to face the power semiconductor elements; a first sealing material containing no flame retardant, and disposed at least between the power semiconductor elements and the printed circuit board; and a second sealing material containing a flame retardant, and disposed to cover the first sealing material.
    Type: Application
    Filed: April 16, 2012
    Publication date: May 8, 2014
    Applicant: FUJI ELECTRIC CO., LTD
    Inventors: Katsuhiko Yanagawa, Yoshinari Ikeda
  • Patent number: 8699051
    Abstract: A method is provided that restricts execution of a job where a finished sheet which is specified in a job, and another finished sheet that is fed, do not match each other. The method for controlling a data processing apparatus for causing a post-processing apparatus to execute post-processing on a print product output by executing printing based on print data received from an information processing apparatus includes inputting image data generated by reading a sheet to be post-processed, receiving checking data for checking an image of the sheet, and restricting, if the checking data does not match the input image data, execution of the post-processing.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: April 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Katsuhiko Yanagawa
  • Patent number: 8543853
    Abstract: An information processing apparatus includes a storage unit configured to store data, a supply unit configured to supply electric power to the storage unit, a determination unit configured to determine whether to cause the information processing apparatus to operate in a power saving mode, a measuring unit configured to measure an elapsed time after a power source of the information processing apparatus is turned on and until the determination unit determines to cause the information processing apparatus to operate in a power saving mode, and a control unit configured to control the supply unit to decrease electric power supplied from the supply unit to the storage unit at a timing determined based on the elapsed time and a predetermined reference time, in case that the determination unit determines to cause the information processing apparatus to operate in a power saving mode.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: September 24, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuji Kuroda, Katsuhiko Yanagawa, Tomohiro Akiba
  • Publication number: 20120241953
    Abstract: A semiconductor device has a single unit capable of improving adhesion to a cooling body and a heat dissipation performance, and an aggregate of the single units is capable of configuring any circuit at a low cost. A single unit (101) includes copper blocks (1, 8), an insulating substrate (6) with a conductive pattern, an IGBT chip (10), a diode chip (13), a collector terminal pin (15), implant pins (17) fixed to the chips (10) by solder (11), a printed circuit board (16) having the implant pins (17) fixed thereto, an emitter terminal pin (19), a control terminal pin (20), a collector terminal pin (15), and a resin case (21) having the above-mentioned components sealed therein. The copper blocks (1, 8) make it possible to improve adhesion to a cooling body and the heat dissipation performance. A plurality of single units (101) can be combined with an inter-unit wiring board to form any circuit.
    Type: Application
    Filed: December 28, 2010
    Publication date: September 27, 2012
    Applicant: FUJI ELECTRIC CO., LTD
    Inventors: Takafumi Yamada, Tetsuya Inaba, Yoshinari Ikeda, Katsuhiko Yanagawa, Yoshikazu Takahashi
  • Publication number: 20120166850
    Abstract: An information processing apparatus includes a storage unit configured to store data, a supply unit configured to supply electric power to the storage unit, a determination unit configured to determine whether to cause the information processing apparatus to operate in a power saving mode, a measuring unit configured to measure an elapsed time after a power source of the information processing apparatus is turned on and until the determination unit determines to cause the information processing apparatus to operate in a power saving mode, and a control unit configured to control the supply unit to decrease electric power supplied from the supply unit to the storage unit at a timing determined based on the elapsed time and a predetermined reference time, in case that the determination unit determines to cause the information processing apparatus to operate in a power saving mode.
    Type: Application
    Filed: March 7, 2012
    Publication date: June 28, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yuji Kuroda, Katsuhiko Yanagawa, Tomohiro Akiba
  • Patent number: 8176346
    Abstract: An information processing apparatus includes a storage unit configured to store data, a supply unit configured to supply electric power to the storage unit, a determination unit configured to determine whether to cause the information processing apparatus to operate in a power saving mode, a measuring unit configured to measure an elapsed time after a power source of the information processing apparatus is turned on and until the determination unit determines to cause the information processing apparatus to operate in a power saving mode, and a control unit configured to control the supply unit to decrease electric power supplied from the supply unit to the storage unit at a timing determined based on the elapsed time and a predetermined reference time, in case that the determination unit determines to cause the information processing apparatus to operate in a power saving mode.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: May 8, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuji Kuroda, Katsuhiko Yanagawa, Tomohiro Akiba
  • Publication number: 20110179961
    Abstract: A printing apparatus capable of improving the printing quality and at the same time reducing the printing failure occurrence rate. An inspection controller of the printing apparatus causes an image reader to read plural pages, which are printed on a sheet according to first image data from a host computer, and generates second image data based on a result of the reading. The inspection controller detects, based on the first and second image data, an amount of printing displacement on each page printed on the sheet, and determines whether the detected amount of printing displacement on each page falls within an allowable range defined by an allowable value. If a saddle-stitching book-binding process is specified in print settings, the allowable value is changed between particular pages where there is an image in a peripheral area around a folded sheet portion and other pages.
    Type: Application
    Filed: January 5, 2011
    Publication date: July 28, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Katsuhiko YANAGAWA
  • Patent number: 7895388
    Abstract: A bus control device includes a multiplexer which connects a ROM controller to a common bus when a ROM mode is set and which connects a PCI controller to the common bus when a PCI mode is set. The bus control unit further includes a bus switch which disconnects a PCI bus from the common bus when the ROM mode is set and which connects the PCI bus to the common bus when the PCI mode is set.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: February 22, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Katsuhiko Yanagawa
  • Publication number: 20110032559
    Abstract: A method is provided that restricts execution of a job where a finished sheet which is specified in a job, and another finished sheet that is fed, do not match each other. The method for controlling a data processing apparatus for causing a post-processing apparatus to execute post-processing on a print product output by executing printing based on print data received from an information processing apparatus includes inputting image data generated by reading a sheet to be post-processed, receiving checking data for checking an image of the sheet, and restricting, if the checking data does not match the input image data, execution of the post-processing.
    Type: Application
    Filed: August 4, 2010
    Publication date: February 10, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Katsuhiko Yanagawa
  • Patent number: 7852501
    Abstract: When a print processing apparatus is in a power saving mode, an information processing apparatus informs, for the print processing apparatus, the user that the print processing apparatus is in the power saving state. It can thus be made known to the user that the print processing apparatus is in the power saving state.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: December 14, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naomi Terada, Katsuhiko Yanagawa, Masahiro Ishiyama, Michio Fukushima, Hiroyuki Tsuji, Yoshihisa Nomura
  • Patent number: 7707439
    Abstract: An information processing apparatus including a first bus connected a first bus device, a second bus connected to a second bus device, and a bus bridge connecting the first bus and the second bus. A power control unit supplies electric power to the first bus device and the bus bridge when the information processing apparatus is in an operative state, and stops power supply when the information processing apparatus is in a power saving state. A transmission control unit controls transmission of a recovery signal which is entered from the second bus device and transmitted to the power control unit to return the information processing apparatus from the power saving state to the operative state, when the information processing apparatus is in the power saving state. The power control unit resumes the power supply to the first bus device and the bus bridge in response to the recovery signal.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: April 27, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Katsuhiko Yanagawa
  • Patent number: 7676658
    Abstract: A data processing apparatus and method configured to load a program corresponding to each of a plurality of functions into a memory, the apparatus and method including storing a program for a specific function from among the plurality of functions, storing a program for a function different from the specific function from among the plurality of functions, loading the program for the specific function into the memory, and loading the program for the function different from the specific function into the memory after power is supplied to the second storage unit based on a request for accessing the second storage unit generated during execution of the program for the specific function.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: March 9, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuhiko Yanagawa, Toshihisa Okutsu
  • Publication number: 20090313408
    Abstract: A bus control device includes a multiplexer which connects a ROM controller to a common bus when a ROM mode is set and which connects a PCI controller to the common bus when a PCI mode is set. The bus control unit further includes a bus switch which disconnects a PCI bus from the common bus when the ROM mode is set and which connects the PCI bus to the common bus when the PCI mode is set.
    Type: Application
    Filed: May 14, 2009
    Publication date: December 17, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Katsuhiko Yanagawa
  • Publication number: 20090276650
    Abstract: An information processing apparatus includes a storage unit configured to store data, a supply unit configured to supply electric power to the storage unit, a determination unit configured to determine whether to cause the information processing apparatus to operate in a power saving mode, a measuring unit configured to measure an elapsed time after a power source of the information processing apparatus is turned on and until the determination unit determines to cause the information processing apparatus to operate in a power saving mode, and a control unit configured to control the supply unit to decrease electric power supplied from the supply unit to the storage unit at a timing determined based on the elapsed time and a predetermined reference time, in case that the determination unit determines to cause the information processing apparatus to operate in a power saving mode.
    Type: Application
    Filed: May 1, 2009
    Publication date: November 5, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yuji Kuroda, Katsuhiko Yanagawa, Tomohiro Akiba
  • Patent number: 7565561
    Abstract: An information processing apparatus which is in enhanced in operability. A printing apparatus (information processing apparatus) operates in a normal operation mode in which normal operation is enabled, or in an energy-saving mode in which power consumption is reduced. A USB host interface communicates with a USB device. When the printing apparatus is operating in the energy-saving mode, electric power is inhibited from being supplied to the USB host interface and an energy-saving block, and a microprocessor of a system LSI causes the printing apparatus to shift from the energy-saving state to the normal operation state when the USB device is connected to the USB host interface.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: July 21, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventor: Katsuhiko Yanagawa
  • Patent number: 7398425
    Abstract: An information processing apparatus includes a non-volatile memory including a first block where data error does not occur and a second block where data error is possible to occur. The first block stores a loader program, and the second block stores an apparatus controlling program. The loader program is executed to write the apparatus controlling program stored in the second block to a volatile memory, and the apparatus controlling program is executed on the volatile memory. Thus, the information processing apparatus can be provided at a reduced cost, using a NAND flash memory, which is inexpensive, to store a program.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: July 8, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Katsuhiko Yanagawa
  • Publication number: 20070220501
    Abstract: A data processing apparatus and method configured to load a program corresponding to each of a plurality of functions into a memory, the apparatus and method including storing a program for a specific function from among the plurality of functions, storing a program for a function different from the specific function from among the plurality of functions, loading the program for the specific function into the memory, and loading the program for the function different from the specific function into the memory after power is supplied to the second storage unit based on a request for accessing the second storage unit generated during execution of the program for the specific function.
    Type: Application
    Filed: March 12, 2007
    Publication date: September 20, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Katsuhiko Yanagawa, Toshihisa Okutsu
  • Publication number: 20070106916
    Abstract: An information processing apparatus including a first bus connected a first bus device, a second bus connected to a second bus device, and a bus bridge connecting the first bus and the second bus. A power control unit supplies electric power to the first bus device and the bus bridge when the information processing apparatus is in an operative state, and stops power supply when the information processing apparatus is in a power saving state. A transmission control unit controls transmission of a recovery signal which is entered from the second bus device and transmitted to the power control unit to return the information processing apparatus from the power saving state to the operative state, when the information processing apparatus is in the power saving state. The power control unit resumes the power supply to the first bus device and the bus bridge in response to the recovery signal.
    Type: Application
    Filed: November 8, 2006
    Publication date: May 10, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Katsuhiko Yanagawa
  • Patent number: 7182664
    Abstract: An organic EL light emitting device and a color conversion filter are placed in an environment in which concentrations of water and oxygen are controlled. A peripheral sealing agent with a ring shape is applied around the color conversion filter, and a filler material is applied over the color conversion filter and inside the peripheral sealing agent. The organic EL light emitting device and the color conversion filter are transferred into a vacuum chamber, which is then evacuated. The organic EL light emitting device and the color conversion filter are preliminarily aligned and then bonded to obtain an aggregate. The aggregate is removed to an environment in which concentrations of water and oxygen are controlled and pressure is at atmospheric pressure, and irradiated with ultraviolet radiation to cure the peripheral sealing agent. The method reduces manufacturing costs and prevents inclusion of water in the internal space.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: February 27, 2007
    Assignee: Fuji Electric Holdings Co., Ltd.
    Inventor: Katsuhiko Yanagawa
  • Publication number: 20060271802
    Abstract: An information processing apparatus which is in enhanced in operability. A printing apparatus (information processing apparatus) operates in a normal operation mode in which normal operation is enabled, or in an energy-saving mode in which power consumption is reduced. A USB host interface communicates with a USB device. When the printing apparatus is operating in the energy-saving mode, electric power is inhibited from being supplied to the USB host interface and an energy-saving block, and a microprocessor of a system LSI causes the printing apparatus to shift from the energy-saving state to the normal operation state when the USB device is connected to the USB host interface.
    Type: Application
    Filed: May 24, 2006
    Publication date: November 30, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventor: Katsuhiko Yanagawa