Patents by Inventor Takafumi Fujiwara

Takafumi Fujiwara 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: 20240159717
    Abstract: A pump unit for a chromatograph includes a plunger pump and an upstream check valve. The plunger pump has a pump head and pumps a mobile phase. The upstream check valve is provided upstream of the pump head. The upstream check valve includes a flow-path portion and a temperature regulator. The flow-path portion guides the mobile phase to the plunger pump. The temperature regulator regulates a temperature of the mobile phase passing through the flow-path portion.
    Type: Application
    Filed: October 28, 2023
    Publication date: May 16, 2024
    Applicant: SHIMADZU CORPORATION
    Inventors: Masanori FUJIWARA, Takafumi NAKAMURA, Yuki IIJIMA, Kosuke WADA
  • Publication number: 20220113330
    Abstract: An automatic analyzer includes a cleaning pool, a discharge port, a waste fluid pipe, a valve, and a guiding unit. The cleaning pool is used to clean a predetermined member with a fluid. The discharge port discharges the fluid. The waste fluid pipe connects the cleaning pool and the discharge port. The valve is disposed to the waste fluid pipe. The guiding unit guides a cleaning fluid to the cleaning pool via the waste fluid pipe.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 14, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Takafumi FUJIWARA, Takashi YOSHIMURA, Takeshi KINPARA, Shohei KAWASHIMA, Tomoaki KURANO, Takahiro OMORI
  • Patent number: 8384972
    Abstract: An image input/output control apparatus includes a control device for controlling input/output of image data with an external apparatus, plural image processing devices for performing predetermined image processes to the image data, and plural data transfer devices for connecting each of the plural image processing devices and the control device like a ring and performing data transfer among them. The plural image processing devices and the control device are composed respectively on different units, whereby the structure of the apparatus can be easily changed, and a decrease in processing speed due to the competition for buses can be reduced without increasing the number of parts necessary for bus control.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: February 26, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takafumi Fujiwara, Atsushi Date
  • Patent number: 7848539
    Abstract: An image processing apparatus includes a production unit that can produce data by putting original image data into a first region and copy-forgery-inhibited-pattern image data into a second region, and a processing unit that can perform predetermined processing to the original image data put in the first region. The image processing apparatus further includes a composite image data producing unit that can produce composite image data based on both of the original image data to which the predetermined processing is performed and the copy-forgery-inhibited-pattern image data put in the second region of the data.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: December 7, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takafumi Fujiwara
  • Patent number: 7724388
    Abstract: An image input/output control apparatus includes a control device for controlling input/output of image data with an external apparatus, plural image processing devices for performing predetermined image processes to the image data, and plural data transfer devices for connecting each of the plural image processing devices and the control device like a ring and performing data transfer among them. The plural image processing devices and the control device are composed respectively on different units, whereby the structure of the apparatus can be easily changed, and a decrease in processing speed due to the competition for buses can be reduced without increasing the number of parts necessary for bus control.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: May 25, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takafumi Fujiwara
  • Publication number: 20090268971
    Abstract: An image processing apparatus includes a production unit that can produce data by putting original image data into a first region and copy-forgery-inhibited-pattern image data into a second region, and a processing unit that can perform predetermined processing to the original image data put in the first region. The image processing apparatus further includes a composite image data producing unit that can produce composite image data based on both of the original image data to which the predetermined processing is performed and the copy-forgery-inhibited-pattern image data put in the second region of the data.
    Type: Application
    Filed: April 6, 2009
    Publication date: October 29, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Takafumi Fujiwara
  • Patent number: 7532739
    Abstract: An image processing apparatus includes a production unit that can produce data by putting original image data into a first region and copy-forgery-inhibited-pattern image data into a second region, and a processing unit that can perform predetermined processing to the original image data put in the first region. The image processing apparatus further includes a composite image data producing unit that can produce composite image data based on both of the original image data to which the predetermined processing is performed and the copy-forgery-inhibited-pattern image data put in the second region of the data.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: May 12, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takafumi Fujiwara
  • Patent number: 7447849
    Abstract: A memory system includes a memory and a plurality of memory controllers for accessing the memory. One of the plurality of memory controllers synchronizes the one of the plurality of memory controllers with the plurality of memory controllers.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: November 4, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keigo Ogura, Takafumi Fujiwara
  • Patent number: 7386634
    Abstract: In a bus, which is provided with a switch having a plurality of master ports and a plurality of slave ports and can connect each of the plurality of master ports to an arbitrary port of the plurality of slave ports, an address phase that issues an address and a command and a data phase that issues write data are separated, and an address phase of next transaction can be issued before the data phase is completed. This improves performance of a system, in which a plurality of master modules and slave modules are connected through the bus.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: June 10, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kohei Murayama, Takafumi Fujiwara
  • Patent number: 7380034
    Abstract: In plural master apparatus connected to a bus, a master apparatus issues, to an arbiter, a request signal requesting the use of the bus after a lapse of a predetermined interval when the use of the bus becomes necessary, while another master apparatus issues, to the arbiter, a request signal requesting the use of the bus immediately when the use of the bus becomes necessary. The arbiter grants a right to use the bus by equally handling the request signals from the master apparatus. Also there is prepared a signal indicating a traffic in the bus, and the request signal is issued after the lapse of the interval in case of a high traffic but it is issued immediately in case of a low traffic. It is thus possible to adjust the practical priority of the but use right in detail or to dynamically change such priority by the presence or absence of such interval or a length thereof.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: May 27, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takafumi Fujiwara, Katsunori Kato, Noboru Yokoyama, Atsushi Date, Tadaaki Maeda
  • Patent number: 7315388
    Abstract: An image input/output control apparatus includes a control device for controlling input/output of image data with an external apparatus, plural image processing devices for performing predetermined image processes to the image data, and plural data transfer devices for connecting each of the plural image processing devices and the control device like a ring and performing data transfer among them. The plural image processing devices and the control device are composed respectively on different units, whereby the structure of the apparatus can be easily changed, and a decrease in processing speed due to the competition for buses can be reduced without increasing the number of parts necessary for bus control.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: January 1, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takafumi Fujiwara, Atsushi Date
  • Publication number: 20070047825
    Abstract: An image processing apparatus includes a production unit that can produce data by putting original image data into a first region and copy-forgery-inhibited-pattern image data into a second region, and a processing unit that can perform predetermined processing to the original image data put in the first region. The image processing apparatus further includes a composite image data producing unit that can produce composite image data based on both of the original image data to which the predetermined processing is performed and the copy-forgery-inhibited-pattern image data put in the second region of the data.
    Type: Application
    Filed: August 16, 2006
    Publication date: March 1, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Takafumi Fujiwara
  • Publication number: 20060236043
    Abstract: A memory system includes a memory and a plurality of memory controllers for accessing the memory. One of the plurality of memory controllers synchronizes the one of the plurality of memory controllers with the plurality of memory controllers.
    Type: Application
    Filed: March 17, 2006
    Publication date: October 19, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventors: Keigo Ogura, Takafumi Fujiwara
  • Publication number: 20060203817
    Abstract: An image input/output control apparatus includes a control device for controlling input/output of image data with an external apparatus, plural image processing devices for performing predetermined image processes to the image data, and plural data transfer devices for connecting each of the plural image processing devices and the control device like a ring and performing data transfer among them. The plural image processing devices and the control device are composed respectively on different units, whereby the structure of the apparatus can be easily changed, and a decrease in processing speed due to the competition for buses can be reduced without increasing the number of parts necessary for bus control.
    Type: Application
    Filed: April 25, 2006
    Publication date: September 14, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: TAKAFUMI FUJIWARA, ATSUSHI DATE
  • Publication number: 20060182106
    Abstract: An image input/output control apparatus includes a control device for controlling input/output of image data with an external apparatus, plural image processing devices for performing predetermined image processes to the image data, and plural data transfer devices for connecting each of the plural image processing devices and the control device like a ring and performing data transfer among them. The plural image processing devices and the control device are composed respectively on different units, whereby the structure of the apparatus can be easily changed, and a decrease in processing speed due to the competition for buses can be reduced without increasing the number of parts necessary for bus control.
    Type: Application
    Filed: April 25, 2006
    Publication date: August 17, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: TAKAFUMI FUJIWARA, Atsushi Date
  • Patent number: 7062664
    Abstract: A P bus from a CPU, an MC bus from a system memory, an IO bus to which an input/output device has been connected, and a G bus for transferring image data of a scanner/printer controller are connected to a system bus bridge (SBB). The SBB connects any of the P bus, G bus and IO bus as a master and any of the MC bus and IO bus as a slave in dependence upon a request from a master. At this time the P bus and IO bus can be connected in parallel with the G bus and MC bus. As a result, access to the memory by the scanner/printer controller can be carried out in parallel with use of the input/output device by the CPU. This makes it possible to process a large quantity of data, such as image data, efficiently.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: June 13, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Date, Katsunori Kato, Noboru Yokoyama, Tadaaki Maeda, Takafumi Fujiwara
  • Patent number: 6992788
    Abstract: The present invention efficiently compresses image data, and stores and manages the compressed data. Image data is compressed in tile unit having predetermined pixels and data packing is performed. The compressed data is compared with compressed data of a preceding packet. If these compressed data are different, the packet data is stored in a memory, and an entry address of the compressed data is stored in a packet table. Meanwhile, if the compressed data is equal to the compressed data of the preceding packet, the compressed data is not stored, but an entry address of the compressed data of the preceding packet is stored in a record of interest in the packet table, and a flag indicative of repetition of the preceding address is set in the packet of interest.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: January 31, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takafumi Fujiwara
  • Patent number: 6952747
    Abstract: In plural master apparatus connected to a bus, a master apparatus issues, to an arbiter, a request signal requesting the use of the bus after a lapse of a predetermined interval when the use of the bus becomes necessary, while another master apparatus issues, to the arbiter, a request signal requesting the use of the bus immediately when the use of the bus becomes necessary. The arbiter grants a right to use the bus by equally handling the request signals from the master apparatus. Also there is prepared a signal indicating a traffic in the bus, and the request signal is issued after the lapse of the interval in case of a high traffic but it is issued immediately in case of a low traffic. It is thus possible to adjust the practical priority of the but use right in detail or to dynamically change such priority by the presence or absence of such interval or a length thereof.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: October 4, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takafumi Fujiwara, Katsunori Kato, Noboru Yokoyama, Atsushi Date, Tadaaki Maeda
  • Publication number: 20050188139
    Abstract: In plural master apparatus connected to a bus, a master apparatus issues, to an arbiter, a request signal requesting the use of the bus after a lapse of a predetermined interval when the use of the bus becomes necessary, while another master apparatus issues, to the arbiter, a request signal requesting the use of the bus immediately when the use of the bus becomes necessary. The arbiter grants a right to use the bus by equally handling the request signals from the master apparatus. Also there is prepared a signal indicating a traffic in the bus, and the request signal is issued after the lapse of the interval in case of a high traffic but it is issued immediately in case of a low traffic. It is thus possible to adjust the practical priority of the but use right in detail or to dynamically change such priority by the presence or absence of such interval or a length thereof.
    Type: Application
    Filed: April 21, 2005
    Publication date: August 25, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventors: Takafumi Fujiwara, Katsunori Kato, Noburo Yokoyama, Atsushi Date, Tadaaki Maeda
  • Publication number: 20040123011
    Abstract: In a bus, which is provided with a switch having a plurality of master ports and a plurality of slave ports and can connect each of the plurality of master ports to an arbitrary port of the plurality of slave ports, an address phase that issues an address and a command and a data phase that issues write data are separated, and an address phase of next transaction can be issued before the data phase is completed. This improves performance of a system, in which a plurality of master modules and slave modules are connected through the bus.
    Type: Application
    Filed: September 26, 2003
    Publication date: June 24, 2004
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kohei Murayama, Takafumi Fujiwara