Patents by Inventor Noritaka Ota

Noritaka Ota 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: 9475302
    Abstract: An ink jet printing apparatus includes a print head configured to be able to eject an ink fed from an ink tank that contains the ink in a closed space so as to apply a negative pressure to the ink, a communication path configured to allow a liquid chamber in the print head to communicate with an outside of the liquid chamber, an opening and closing unit configured to open and close the communication path, and a control unit configured to open the communication path in accordance with a pressure in the print head via the opening and closing unit, to bring the liquid chamber and the outside into communication with each other.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: October 25, 2016
    Assignee: Canon Finetech, Inc.
    Inventors: Kenro Yamaguchi, Takashi Sugai, Noritaka Ota
  • Patent number: 9409404
    Abstract: A liquid ejection head is capable of ejecting a liquid through an ejection port, the liquid being supplied from a liquid container with a negative pressure generating section. The liquid ejection head comprises a liquid chamber configured to contain the liquid, a liquid supply section configured to allow the liquid to be supplied from the liquid container to the liquid chamber, and an opening configured to communicate with the liquid chamber and to enable the liquid and/or a gas to flow into the liquid chamber through the opening.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: August 9, 2016
    Assignee: Canon Finetech, Inc.
    Inventors: Yoshihito Fukuda, Kenro Yamaguchi, Takashi Sugai, Noritaka Ota, Kayo Mukai, Masayoshi Yazaki
  • Patent number: 9399348
    Abstract: A liquid ejection head is capable of ejecting a liquid through an ejection port, the liquid being supplied from a liquid container with a negative pressure generating section. The liquid ejection head comprises a liquid chamber configured to contain the liquid, a liquid supply section configured to allow the liquid to be supplied from the liquid container to the liquid chamber, and an opening configured to communicate with the liquid chamber and to enable the liquid and/or a gas inside the liquid chamber to flow out through the opening.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: July 26, 2016
    Assignee: Canon Finetech, Inc.
    Inventors: Masayoshi Yazaki, Kayo Mukai, Noritaka Ota, Takashi Sugai, Kenro Yamaguchi
  • Publication number: 20150085004
    Abstract: An ink jet printing apparatus includes a print head configured to be able to eject an ink fed from an ink tank that contains the ink in a closed space so as to apply a negative pressure to the ink, a communication path configured to allow a liquid chamber in the print head to communicate with an outside of the liquid chamber, an opening and closing unit configured to open and close the communication path, and a control unit configured to open the communication path in accordance with a pressure in the print head via the opening and closing unit, to bring the liquid chamber and the outside into communication with each other.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 26, 2015
    Inventors: Kenro YAMAGUCHI, Takashi Sugai, Noritaka Ota
  • Publication number: 20140285585
    Abstract: A liquid ejection head is capable of ejecting a liquid through an ejection port, the liquid being supplied from a liquid container with a negative pressure generating section. The liquid ejection head comprises a liquid chamber configured to contain the liquid, a liquid supply section configured to allow the liquid to be supplied from the liquid container to the liquid chamber, and an opening configured to communicate with the liquid chamber and to enable the liquid and/or a gas inside the liquid chamber to flow out through the opening.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 25, 2014
    Applicant: CANON FINETECH INC.
    Inventors: Masayoshi YAZAKI, Kayo MUKAI, Noritaka OTA, Takashi SUGAI, Kenro YAMAGUCHI
  • Publication number: 20140285586
    Abstract: A liquid ejection head is capable of ejecting a liquid through an ejection port, the liquid being supplied from a liquid container with a negative pressure generating section. The liquid ejection head comprises a liquid chamber configured to contain the liquid, a liquid supply section configured to allow the liquid to be supplied from the liquid container to the liquid chamber, and an opening configured to communicate with the liquid chamber and to enable the liquid and/or a gas to flow into the liquid chamber through the opening.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 25, 2014
    Applicant: CANON FINETECH INC.
    Inventors: Yoshihito FUKUDA, Kenro YAMAGUCHI, Takashi SUGAI, Noritaka OTA, Kayo MUKAI, Masayoshi YAZAKI
  • Patent number: 7874656
    Abstract: An ink-feeding device is provided in which the pressure applied to the ink in the printing head can be adjusted arbitrarily irrespective of the relative positions of the ink container and the printing head. Inside the sub-tank 80, a pressure-adjusting pump 82 is installed for applying a suitable pressure to many nozzles 22Kn of the printing head 22K. This pressure-adjusting pump 82 is placed a little above the bottom face of the sub-tank 80 at a prescribed distance from the bottom face. Thereby the pressure-adjusting pump 82 is immersed in the ink held in the sub-tank 80. A drive unit 83 for driving the pressure-adjusting pump 82 is placed above the sub-tank 80. On the upper wall of the sub-tank 80, an air-vent valve 84 is fixed to bring the inside pressure in the sub-tank 80 to an atmospheric pressure. The inside pressure in the sub-tank 80 is made equal to the atmospheric pressure by opening the air-vent valve 84.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: January 25, 2011
    Assignee: Canon Finetech Inc.
    Inventors: Noritaka Ota, Yuichi Takahashi, Daisuke Nakamura, Takeshi Miura, Kazuo Haida
  • Publication number: 20090072035
    Abstract: A test chart for printing black bars and white bars of a barcode, each of which has one of multiple different numbers of dots-in-width, is printed on a printing device on which barcodes are printed. In image data on the test chart, the space between neighboring black bars on the test chart is used as a white bar. The widths of black bars and white bars of a barcode are measured based on the image of the printed test chart. Based on this measurement result, the numbers of dots-in-width of black bars and white bars to be set at a printing time are calculated as barcode correction values so that the black bar widths and white bar widths of a printed barcode meet predetermined sizes. This configuration generates barcode configuration information, or barcodes, that satisfy individual user's use condition, quickly and with the minimal use of paper and ink.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 19, 2009
    Applicant: CANON FINETECH INC.
    Inventor: Noritaka Ota
  • Publication number: 20080304891
    Abstract: A barcode generation system that generates an appropriate barcode, which satisfies the usage condition of each user, quickly and with a minimum consumption of ink and paper. A test chart is printed on a printing device 200 based on a test chart image 706 provided for printing black bars and white bars of a barcode wherein each of the black bars and white bars has the width of one of a plurality of different numbers of dots, and the output test chart 704 is read by an image scanner 110. An information processing device 100 analyzes the image, which has been read, and generates a relation table 800. In addition, based on information on a barcode type and a narrow bar width, the information processing device 100 calculates, by referring to the relation table 800, the correction values (barcode correction values 707) for the widths of the bar elements constituting the barcode.
    Type: Application
    Filed: May 27, 2008
    Publication date: December 11, 2008
    Applicant: CANON FINETECH INC.
    Inventors: Shinichi Saijo, Noritaka Ota, Hirohisa Niida, Miho Kunimatsu, Hiroyuki Maruo
  • Publication number: 20080273064
    Abstract: An ink-feeding device is provided in which the pressure applied to the ink in the printing head can be adjusted arbitrarily irrespective of the relative positions of the ink container and the printing head. Inside the sub-tank 80, a pressure-adjusting pump 82 is installed for applying a suitable pressure to many nozzles 22Kn of the printing head 22K. This pressure-adjusting pump 82 is placed a little above the bottom face of the sub-tank 80 at a prescribed distance from the bottom face. Thereby the pressure-adjusting pump 82 is immersed in the ink held in the sub-tank 80. A drive unit 83 for driving the pressure-adjusting pump 82 is placed above the sub-tank 80. On the upper wall of the sub-tank 80, an air-vent valve 84 is fixed to bring the inside pressure in the sub-tank 80 to an atmospheric pressure. The inside pressure in the sub-tank 80 is made equal to the atmospheric pressure by opening the air-vent valve 84.
    Type: Application
    Filed: April 4, 2008
    Publication date: November 6, 2008
    Applicant: CANON FINETECH INC.
    Inventors: Noritaka OTA, Yuichi TAKAHASHI, Daisuke NAKAMURA, Takeshi MIURA, Kazuo HAIDA
  • Publication number: 20080259391
    Abstract: Recording data generated by a recording data generation PC (100) is divided by recording data sending PCs (110, 120) and is sent to corresponding recording devices (210, 220). The recording devices (210, 220) record the received divided recording data on a common recording medium (130). If a recording error has occurred on one of the recording devices, the error is notified to the recording data generation PC via the recording data sending PC and recording stop instructions are issued from the recording data generation PC to all recording devices. When the recording stop instruction is received, each recording device sends the recording page number at that time to the recording data generation PC. The recording data generation PC determines a desired recording page number from the recording page numbers acquired from the recording devices, acquires the recording data from a recording database, converts the acquired recording data to display data, and displays it on a display device.
    Type: Application
    Filed: April 15, 2008
    Publication date: October 23, 2008
    Applicant: CANON FINETECH INC.
    Inventors: Hiroyuki Maruo, Chiharu Yumoto, Tatsuya Yonemori, Noritaka Ota
  • Publication number: 20060132554
    Abstract: An ink-feeding device is provided in which the pressure applied to the ink in the printing head can be adjusted arbitrarily irrespective of the relative positions of the ink container and the printing head. Inside the sub-tank 80, a pressure-adjusting pump 82 is installed for applying a suitable pressure to many nozzles 22Kn of the printing head 22K. This pressure-adjusting pump 82 is placed a little above the bottom face of the sub-tank 80 at a prescribed distance from the bottom face. Thereby the pressure-adjusting pump 82 is immersed in the ink held in the sub-tank 80. A drive unit 83 for driving the pressure-adjusting pump 82 is placed above the sub-tank 80. On the upper wall of the sub-tank 80, an air-vent valve 84 is fixed to bring the inside pressure in the sub-tank 80 to an atmospheric pressure. The inside pressure in the sub-tank 80 is made equal to the atmospheric pressure by opening the air-vent valve 84.
    Type: Application
    Filed: November 16, 2005
    Publication date: June 22, 2006
    Inventors: Noritaka Ota, Yuichi Takahashi, Daisuke Nakamura, Takeshi Miura, Kazuo Haida