Patents by Inventor Atsushi Sakamoto

Atsushi Sakamoto 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: 9825307
    Abstract: A technology is provided that is capable of improving deterioration of a fuel cell due to non-stationary operation (startup/shutdown, fuel depletion). An anode-side catalyst composition comprising a catalyst having catalyst particles carried on electrically conductive material and an ion exchange resin, characterized in that the catalyst particle are formed of an alloy, of which oxygen reduction capability and water electrolysis are both lower than those of platinum, and which has hydrogen oxidation capability.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: November 21, 2017
    Assignee: W. L. Gore & Associates, Co., Ltd.
    Inventors: Masashi Maruyama, Atsushi Sakamoto, Tomoyuki Kawaguchi, Takuya Kosaka
  • Patent number: 9646551
    Abstract: A processor determines a drive scheme from among candidates of a plurality of drive schemes having differing schemes for supplying a signal to a signal line of a display panel. A controller stores a scheme drive information in which a drive scheme information and a signal control information in a drive scheme are associated. A controller receives a scheme information from a processor, and controls a signal supplied to a signal line of a display panel, the control being made based on a scheme information and a scheme drive information.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: May 9, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akizumi Fujioka, Atsushi Sakamoto, Kazuo Nakamura
  • Patent number: 9457590
    Abstract: There are provided a printing apparatus, a method for controlling the printing apparatus, and a storage medium. The printing apparatus includes a conveying unit that conveys a print medium; a print head that applies a color material on the print medium; an obtaining unit configured to obtain, in the case where a first surface of the print medium on which a first image is printed comes in contact with the conveying unit, information on a printing condition of the first surface that becomes a factor of changing a conveying speed of the print medium in the predetermined direction; and a control unit configured to control timing of applying a color material on a second surface of the print medium that is a surface at the opposite to the first surface according to the printing condition indicated by the information obtained by the obtaining unit.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: October 4, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuya Koizumi, Yasutaka Mitani, Yosuke Ushigome, Yoshiaki Kaburagi, Takayuki Tanabe, Atsushi Takahashi, Yusuke Kadokura, Keiji Harada, Yoshiaki Takayanagi, Hideo Horigome, Susumu Hirosawa, Atsushi Sakamoto, Satoshi Masuda, Toshiki Takeuchi, Kengo Nieda
  • Patent number: 9421798
    Abstract: An ink-jet recording device is capable of correcting a recording position due to a leaning of a printing head and correcting of driving timing between multiple printing heads. Each nozzle row of a printing head is classified into multiple nozzle groups, and the driving timing of the nozzle groups other than the nozzle group serving as a reference of correction of the multiple nozzle groups is adjustable to correct for any leaning of the printing head. Moreover, in the event of performing the driving timing between printing heads, the driving timing of a non-reference printing head is adjustable relative to a reference printing head employed for leaning correction of multiple printing heads.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: August 23, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Aya Hayashi, Jiro Moriyama, Hidehiko Kanda, Yuji Hamasaki, Norihiro Kawatoko, Toshiyuki Chikuma, Atsushi Sakamoto, Hirokazu Tanaka, Masashi Hayashi
  • Patent number: 9421498
    Abstract: Systems and methods condition a filter assembly. Purging liquid is passed through the filter assembly to remove contaminants from the pores and voids of the filter medium and from the upstream and downstream sides of the filter medium.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: August 23, 2016
    Assignee: Pall Corporation
    Inventors: Atsushi Sakamoto, Hisayuki Kataoka, Takehito Mizuno, Kazuma Tsutsumi
  • Publication number: 20160126560
    Abstract: The present invention addresses the problem of providing: a core-shell catalyst capable of achieving, when evaluated for a fuel cell, the catalytic activity anticipated from the catalyst activity value obtained using a rotating disc electrode (RDE); and a method for activating a core-shell catalyst in said manner. The present invention relates to a fuel cell catalyst, which is an electrode catalyst having a core-shell structure and is characterized in that at least 99% of the core member is covered by the shell member and the halogen content is not more than 5000 ppm. The present invention also relates to a method for activating said core-shell catalyst, the method comprising: a process for dispersing the core-shell catalyst in a dispersion solvent; a process for separating impurities from said core-shell catalyst by blowing a gas that has reducing properties or a mixed gas comprising same into said dispersion solvent; and a process for removing said impurities.
    Type: Application
    Filed: May 9, 2014
    Publication date: May 5, 2016
    Applicant: W.L. Gore & Associates, Co. Ltd.
    Inventors: Masashi Maruyama, Tomoyuki Kawaguchi, Atsushi Sakamoto
  • Patent number: 9254595
    Abstract: Provided are a decorative sheet having stretchability and heat resistance and an in-mold forming method capable of forming in-mold injection formed products having excellent decorative image. A decorative sheet includes an image layer and an image running prevention region in order on a resin sheet, in which the image layer is a cured image of an ink composition containing (a) a polymerizable compound, (b) a polymerization initiator, and (c) a coloring agent; the image running prevention region is a cured layer of a composition for running prevention containing (a) a polymerizable compound, and (b) a polymerization initiator; and the image running prevention region has superior heat resistance to the image layer, and an injection forming method using the decorative sheet.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: February 9, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Yoshimitsu Arai, Atsushi Sakamoto, Kenjirou Araki, Kyohei Mochizuki
  • Publication number: 20150317938
    Abstract: A processor determines a drive scheme from among candidates of a plurality of drive schemes having differing schemes for supplying a signal to a signal line of a display panel. A controller stores a scheme drive information in which a drive scheme information and a signal control information in a drive scheme are associated. A controller receives a scheme information from a processor, and controls a signal supplied to a signal line of a display panel, the control being made based on a scheme information and a scheme drive information.
    Type: Application
    Filed: August 7, 2013
    Publication date: November 5, 2015
    Inventors: Akizumi FUJIOKA, Atsushi SAKAMOTO, Kazuo NAKAMURA
  • Publication number: 20150273896
    Abstract: There are provided a printing apparatus, a method for controlling the printing apparatus, and a storage medium. The printing apparatus includes a conveying unit conveys a print medium; a print head applies a color material on the print medium; an obtaining unit configured to obtain, in the case where a first surface of the print medium on which a first image is printed comes in contact with the conveying unit, information on a printing condition of the first surface that becomes a factor of changing a conveying speed of the print medium in the predetermined direction; and a control unit configured to control timing of applying a color material on a second surface of the print medium that is a surface at the opposite to the first surface according to the printing condition indicated by the information obtained by the obtaining unit.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Inventors: Kazuya KOIZUMI, Yasutaka Mitani, Yosuke Ushigome, Yoshiaki Kaburagi, Takayuki Tanabe, Atsushi Takahashi, Yusuke Kadokura, Keiji Harada, Yoshiaki Takayanagi, Hideo Horigome, Susumu Hirosawa, Atsushi Sakamoto, Satoshi Masuda, Toshiki Takeuchi, Kengo Nieda
  • Patent number: 9138991
    Abstract: One aspect of this invention is directed to suitable drive control in accordance with an output from the temperature sensor of a printhead. More specifically, a printing apparatus by using a printhead that includes heaters and a temperature sensor on a substrate and discharges ink by driving the heaters executes the following steps. First, when printing a test pattern by using a predetermined driving pulse in a maintenance mode, a detected temperature is stored as a reference temperature in a memory. Then, in a normal printing mode, the difference between a detected temperature and the stored reference temperature is calculated, and a driving pulse for driving the printhead is selected from a plurality of driving pulses based on the difference. The printhead is controlled to be driven using the selected driving pulse and print.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: September 22, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Murase, Atsushi Sakamoto, Minoru Teshigawara, Kei Kosaka
  • Patent number: 9101955
    Abstract: An active energy ray-curable ink composition includes (component A) monofunctional radically polymerizable monomers, (component B) a polyfunctional oligomer having a glass transition temperature of 20° C. or lower and an acrylate value of 300 g/value or more, and (component C) a bifunctional radically polymerizable monomer having a viscosity at 25° C. of 15 mPa·s or less, wherein the component A includes an N-vinyl compound and a compound represented by the following formula (I), the content of the N-vinyl compound with respect to the total amount of the ink composition is from 10 to 50% by mass, and the content of the component A with respect to the total amount of the ink composition is 70% by mass or more.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: August 11, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Kenjirou Araki, Atsushi Sakamoto, Kazuhiro Yokoi
  • Patent number: 8974894
    Abstract: A decorative sheet includes a resin substrate, and an image layer that includes a fixed-ink image formed of an ink composition containing (a) a pigment, (b) polymer particles, (c) a water-soluble organic solvent, and (d) water, on the resin substrate. When a tensile test is performed on the decorative sheet in an atmosphere at 180° C., a stretching rate thereof that is defined as below is 150% or higher. Stretching rate (%)=[(length at the time of breakage?length before stretching)/(length before stretching)]×100.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: March 10, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Yoshimitsu Arai, Atsushi Sakamoto, Kenjirou Araki, Reiko Fukagawa
  • Publication number: 20150062225
    Abstract: A printing apparatus, including: printing unit; conveying unit; print control unit; correcting unit configured to determine, in printing an image on each of a plurality of sets of the same type of print medium, a correction value for correcting printing position shift between a plurality of nozzle arrays based on an inspection pattern printed on a preceding region of the print medium, and to correct the printing position between the plurality of nozzle arrays in the subsequent region of the print medium by using the determined correction value, wherein the correcting unit corrects, in printing on a leading end region of a set of print medium subsequent to the preceding set of print medium, the printing position shift by using the correction value used in printing on the preceding set of print medium.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Inventors: Atsushi Sakamoto, Susumu Hirosawa, Satoshi Masuda, Toshiki Takeuchi, Kengo Nieda
  • Patent number: 8967758
    Abstract: An ink-jet recording device is capable of correcting a recording position due to a leaning of a printing head and correcting of driving timing between multiple printing heads. Each nozzle row of a printing head is classified into multiple nozzle groups, and the driving timing of the nozzle groups other than the nozzle group serving as a reference of correction of the multiple nozzle groups is adjustable to correct for any leaning of the printing head. Moreover, in the event of performing the driving timing between printing heads, the driving timing of a non-reference printing head is adjustable relative to a reference printing head employed for leaning correction of multiple printing heads.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Aya Hayashi, Jiro Moriyama, Hidehiko Kanda, Yuji Hamasaki, Norihiro Kawatoko, Toshiyuki Chikuma, Atsushi Sakamoto, Hirokazu Tanaka, Masashi Hayashi
  • Patent number: 8944584
    Abstract: An ink jet recording apparatus capable of landing an ink drop on an exact position on a recording medium is provided. The ink jet recording apparatus performs recording on a recording medium which has been subjected to application processing with a pretreatment liquid. The ink jet recording apparatus has an electrostatic belt which has a resistance layer formed on the surface thereof, and a power feed roller which imparts charges to the surface of the electrostatic belt. The recording head discharges ink to the surface of the recording medium when the back of the recording medium comes into contact with the surface of the electrostatic belt to which the charges have been imparted.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: February 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Sakamoto, Hitoshi Nishikori, Nozomu Nishiberi, Yasuyuki Hirai, Yasufumi Tanaami
  • Patent number: 8940813
    Abstract: Disclosed is an actinic radiation-curing type ink composition comprising (Component A) a monofunctional radically polymerizable monomer and (Component B) a polyfunctional acrylate oligomer having a glass transition temperature of no greater than 20° C. and having an acrylate equivalent of at least 300 g/eq, Component A comprising (Component A-1) an N-vinyl compound and (Component A-2) an acrylamide derivative, Component A having a content of at least 70 mass % of the entire ink composition, and Component A-1 having a content of at least 18 mass % of the entire ink composition.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: January 27, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Kenjiro Araki, Atsushi Sakamoto, Kazuhiro Yokoi
  • Patent number: 8931875
    Abstract: There is provided an inkjet printing apparatus which can output a stable image without density unevenness by performing appropriate drive control to print elements based upon an appropriate representative temperature of a chip whatever image data is printed on a print medium. For this purpose, detection temperatures of a plurality of temperature sensors are lined up in high temperature order, and coefficients by which the respective detection temperatures are multiplied, are determined to be associated with that order at the lining-up, determining a representative temperature by the weighted average method. The common drive pulse associated with to the individual chip based upon the representative temperature thus obtained, to be applied thereto. Thereby even if temperature variations of print elements on the chip exist, it is possible to appropriately control the entire chip in temperature.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: January 13, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kei Kosaka, Minoru Teshigawara, Atsushi Sakamoto, Takeshi Murase, Yoshiyuki Honda
  • Patent number: 8794745
    Abstract: A liquid ejection method is effected in a liquid ejection head that includes an ejection orifice for ejecting a liquid, a flow path for supplying the liquid from a liquid supply port to the ejection orifice, and a heat generating element. The heat generating element is rectangular with a long-side to short-side ratio of 2.5 or more for generating thermal energy used to eject the liquid, and a longitudinal direction of the heat generating element is arranged along an extending direction of the flow path. An end portion of the heat generating element on a downstream side with respect to a liquid flowing direction within the flow path is located between an end portion of the ejection orifice on the downstream side and an end portion of the ejection orifice on an upstream side when viewed from a direction in which the liquid is ejected from the ejection orifice.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: August 5, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toru Yamane, Tomoyuki Inoue, Eisuke Nishitani, Kenji Yabe, Atsushi Sakamoto
  • Patent number: 8740333
    Abstract: A printing apparatus that includes printing element substrates which are provided with printing elements that discharge ink. A plurality of temperature sensors, each of which is provided with one of the printing element substrates, measures a temperature of a corresponding printing element substrate. A selection unit selects any one of the temperature sensors, and a determination unit performs a determination operation to determine a state of the printing element substrate based on the temperature measured by the selected temperature sensor in a case when only the printing elements of a substrate that corresponds to the selected temperature sensor are driven. The determination unit performs the determination operation on a first substrate and then on a second non-adjacent substrate.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: June 3, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Minoru Teshigawara, Atsushi Sakamoto, Takeshi Murase, Yoshiyuki Honda, Shinichi Omo, Masahiko Umezawa
  • Patent number: D736815
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: August 18, 2015
    Assignee: Sony Corporation
    Inventors: Makoto Niijima, Satoshi Asai, Yunha Cho, Atsushi Sakamoto, Masato Koyama