Patents by Inventor Satoshi Kudo

Satoshi Kudo 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: 8163817
    Abstract: An aqueous ink to be used together with a pigment ink containing a pigment and a polymer, wherein the aqueous ink contains a reactive component for destabilizing the dispersion state of the pigment, the dynamic surface tension of the aqueous ink at a lifetime of 30 milliseconds is 41 mN/m or more, and the dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is from 28 mN/m or more to 38 mN/m or less as determined by a maximum bubble pressure method.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: April 24, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuuki Nishino, Hiroyuki Takuhara, Mikio Sanada, Daiji Okamura, Kenji Moribe, Satoshi Kudo
  • Publication number: 20120052675
    Abstract: In a method of fabricating a semiconductor device having a MISFET of trench gate structure, a trench is formed from a major surface of a semiconductor layer of first conductivity type which serves as a drain region, in a depth direction of the direction of the semiconductor layer, a gate insulating film including a thermal oxide film and a deposited film is formed over the internal surface of the trench, and after a gate electrode has been formed in the trench, impurities are introduced into the semiconductor substrate of first conductivity type to form a semiconductor region of second conductivity type which serves as a channel forming region, and impurities are introduced into the semiconductor region of second conductivity type to form the semiconductor region of first conductivity type which serves as a source region.
    Type: Application
    Filed: November 8, 2011
    Publication date: March 1, 2012
    Applicants: HITACHI ULSI SYSTEMS CO., LTD., RENESAS ELECTRONICS CORPORATION
    Inventors: Sumito Numazawa, Yoshito Nakazawa, Masayoshi Kobayashi, Satoshi Kudo, Yasuo Imai, Sakae Kubo, Takashi Shigematsu, Akihiro Ohnishi, Kozo Uesawa, Kentaro Oishi
  • Patent number: 8123846
    Abstract: An ink jet ink providing an image having excellent lightfastness and having sticking resistance and intermittent ejection stability. The ink jet ink is characterized by containing at least a compound represented by the following general formula (I) and a compound represented by the following general formula (II).
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: February 28, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideki Yamakami, Hiroshi Tomioka, Daiji Okamura, Mitsuru Ishii, Satoshi Kudo, Otome Mori
  • Patent number: 8087759
    Abstract: The impact accuracy of ejected droplets, the quality of printed images, and print speed can be improved in a print head having an ink channel for which the width thereof in a direction orthogonal to an ink supply direction in which ink is supplied from an ink supply port to a pressure chamber is smaller than that of a pressure chamber. In the print head, the center of a heater along the ink supply direction is offset from the center of the pressure chamber along the ink supply direction, toward the side of the pressure chamber far from the ink supply port in the ink supply direction.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: January 3, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaki Oikawa, Keiji Tomizawa, Mikiya Umeyama, Toru Yamane, Yuichiro Akama, Chiaki Muraoka, Tomotsugu Kuroda, Shingo Nagata, Satoshi Kudo
  • Publication number: 20110310162
    Abstract: An object of the present invention is to provide an ink jet recording method which gives an ink excellent anti-sticking properties and can suppress the occurrence of undertrapping when recording surfaces of recording media which each have an ink-receiving layer are overlapped with each other, and to provide an ink jet recording apparatus. The ink jet recording method of forming an image on the recording medium having the ink-receiving layer by ejecting an ink from an ink jet recording head, the method including performing at least one of drying the recording medium which has the image formed thereon and humidifying a gap between the recording head and the recording medium, wherein the ink to be used for forming the image is an ink which contains water, a water-soluble organic solvent and a specific compound.
    Type: Application
    Filed: May 26, 2011
    Publication date: December 22, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yukako Tamanuki, Shogo Takemoto, Kumiko Mafune, Yojiro Kojima, Satoshi Kudo, Yoshio Kinoshita, Fumihiko Mukae
  • Publication number: 20110310164
    Abstract: An ink jet recording method includes an image formation step of forming an image on a recording medium having an ink-receiving layer by ejecting an ink from an ink jet recording head and a humidification step of humidifying a gap between the recording head and the recording medium, in which in the image formation step, at least a cyan ink containing a specific dye and a magenta ink containing a specific dye are used.
    Type: Application
    Filed: June 21, 2011
    Publication date: December 22, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Kudo, Kumiko Mafune, Yojiro Kojima, Yoshio Kinoshita, Yukako Tamanuki, Shogo Takemoto
  • Publication number: 20110310202
    Abstract: An ink jet recording method includes an image formation step of forming an image on a recording medium having an ink-receiving layer by ejecting an ink from an ink jet recording head and a humidification step of humidifying a gap between the recording head and the recording medium, in which in the image formation step, an ink containing a specified dye represented by general formula (I) and a water-soluble organic compound having an inorganic-organic balance value of 1.4 or more to 2.7 or less is used.
    Type: Application
    Filed: June 21, 2011
    Publication date: December 22, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yojiro Kojima, Yukako Tamanuki, Shogo Takemoto, Satoshi Kudo, Yoshio Kinoshita, Kumiko Mafune
  • Patent number: 8076202
    Abstract: In a method of fabricating a semiconductor device having a MISFET of trench gate structure, a trench is formed from a major surface of a semiconductor layer of first conductivity type which serves as a drain region, in a depth direction of the semiconductor layer, a gate insulating film including a thermal oxide film and a deposited film is formed over the internal surface of the trench, and after a gate electrode has been formed in the trench, impurities are introduced into the semiconductor substrate of first conductivity type to form a semiconductor region of second conductivity type which serves as a channel forming region, and impurities are introduced into the semiconductor region of second conductivity type to form the semiconductor region of first conductivity type which serves as a source region.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: December 13, 2011
    Assignees: Renesas Electronics Corporation, Hitachi ULSI Systems Co., Ltd.
    Inventors: Sumito Numazawa, Yoshito Nakazawa, Masayoshi Kobayashi, Satoshi Kudo, Yasuo Imai, Sakae Kubo, Takashi Shigematsu, Akihiro Ohnishi, Kozo Uesawa, Kentaro Oishi
  • Patent number: 8052251
    Abstract: An ink jet recording head includes an element substrate; a plurality of ejection outlets, provided on the element substrate, for ejecting ink in a direction perpendicular to the element substrate; and a nozzle formation member having a plurality of ink flow paths which are in fluid communication with the ejection outlets, respectively. The ink flow paths are arranged at a density higher than 1200 dpi in an arranging direction of the ejection outlets and widths of flow passage walls forming the ink flow paths are smaller than heights of the ink flow paths and are smaller than widths of the ink flow paths.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: November 8, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kiyomitsu Kudo, Yukuo Yamaguchi, Genji Inada, Mikiya Umeyama, Masaru Iketani, Satoshi Kudo, Yuichiro Akama, Chiaki Muraoka, Satoshi Kimura
  • Patent number: 8029612
    Abstract: The present invention provides an ink jet ink, which gives a superior lightfastness to an ink image, has a superior sticking resistance and intermittent ejection stability, and gives a preferable color tone to the image. The ink includes an azo-based dye represented by formula (I) and a water-soluble organic solvent represented by bis(2-hydroxyethyl)sulfone represented by formula (II).
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: October 4, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuru Ishii, Hiroshi Tomioka, Daiji Okamura, Hideki Yamakami, Satoshi Kudo, Otome Mori
  • Patent number: 8016932
    Abstract: An aqueous ink used together with a black ink containing a self-dispersion pigment, wherein the aqueous ink contains a reactive component for destabilizing the dispersion state of the self-dispersion pigment, the dynamic surface tension of the aqueous ink at a lifetime of 30 milliseconds is 41 mN/m or more, and the dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is from 28 mN/m or more to 38 mN/m or less as determined by a maximum bubble pressure method.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: September 13, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Daiji Okamura, Hiroyuki Takuhara, Yuuki Nishino, Mikio Sanada, Kenji Moribe, Satoshi Kudo
  • Publication number: 20110215398
    Abstract: In a method of fabricating a semiconductor device having a MISFET of trench gate structure, a trench is formed from a major surface of a semiconductor layer of first conductivity type which serves as a drain region, in a depth direction of the semiconductor layer, a gate insulating film including a thermal oxide film and a deposited film is formed over the internal surface of the trench, and after a gate electrode has been formed in the trench, impurities are introduced into the semiconductor substrate of first conductivity type to form a semiconductor region of second conductivity type which serves as a channel forming region, and impurities are introduced into the semiconductor region of second conductivity type to form the semiconductor region of first conductivity type which serves as a source region.
    Type: Application
    Filed: May 13, 2011
    Publication date: September 8, 2011
    Applicants: RENESAS ELECTRONICS CORPORATION, HITACHI ULSI SYSTEMS CO., LTD.
    Inventors: Sumito Numazawa, Yoshito Nakazawa, Masayoshi Kobayashi, Satoshi Kudo, Yasuo Imai, Sakae Kubo, Takashi Shigematsu, Akihiro Ohnishi, Kozo Uesawa, Kentaro Oishi
  • Patent number: 8007077
    Abstract: An inkjet head includes a recording element substrate, on which sets of energy generating elements generating energy to discharge ink and a supply port supplying ink to discharge ports are arranged, and an orifice plate including the discharge ports. The sets include a set having a first supply port disposed at a first edge of the substrate and a set having a second supply port disposed at a second edge of the substrate opposite the first edge. The distance between the second edge and the second supply port is shorter than the distance between the first edge and the first supply port. A contact area between the substrate and second channel walls that form second ink channels communicating with the second supply port is larger than the contact area between the substrate and first channel walls that form first ink channels communicating with the first supply port.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: August 30, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Kudo, Genji Inada
  • Patent number: 7988277
    Abstract: An ink set is provided which can suppress bleeding irrespective of the type of recording medium. The ink set includes a plurality of aqueous inks each containing a dye, and has at least a first aqueous ink containing a dye, wherein the difference between the dynamic surface tension of the first aqueous ink at a lifetime of 50 milliseconds and the dynamic surface tension of the first aqueous ink at a lifetime of 500 milliseconds is 7 mN/m or more; and, between the first aqueous ink and at least one type of aqueous ink except the first aqueous ink included in the ink set, dynamic surface tension ?a (mN/m) of an ink A having relatively higher lightness at a lifetime of 500 milliseconds and dynamic surface tension ?b (mN/m) of an ink B having relatively lower lightness at a lifetime of 500 milliseconds satisfy ?5?(?a??b)?3.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: August 2, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Moribe, Satoshi Kudo, Mikio Sanada, Hideki Yamakami
  • Patent number: 7878643
    Abstract: An aqueous ink contains at least an aqueous medium, a surfactant, and a dye. The aqueous medium includes only water and at least one water-soluble organic compound(s) and the static surface tension of the aqueous medium is from 45 mN/m or more to 57 mN/m or less. The dynamic surface tension of the aqueous ink satisfies the following conditions: (1) The dynamic surface tension of the aqueous ink at a lifetime of 50 milliseconds is from 42 mN/m or more to less than 49 mN/m; (2) The dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is from 28 mN/m or more to 38 mN/m or less; and (3) A difference between the dynamic surface tension of the aqueous ink at a lifetime of 50 milliseconds and the dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is 7 mN/m or more.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: February 1, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Kudo, Kenji Moribe
  • Patent number: 7845766
    Abstract: An inkjet recording head includes a recording-element substrate having arranged therein multiple sets of nozzles that discharge ink, energy-generating elements that generate energy used for discharging the ink, and supply ports that supply the ink to the nozzles; and a sealant disposed around the recording-element substrate. The supply ports include a first supply port disposed near a first edge of the recording-element substrate and a second supply port disposed near a second edge of the recording-element substrate, the second edge being opposite to the first edge as viewed in the arrangement direction of the multiple sets. As viewed in the arrangement direction, a distance between the second edge and the second supply port is shorter than a distance between the first edge and the first supply port, and a volume of the sealant near the second edge is smaller than a volume of the sealant near the first edge.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: December 7, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Kimura, Genji Inada, Torachika Osada, Keisuke Matsuo, Satoshi Kudo, Yukuo Yamaguchi
  • Publication number: 20100225707
    Abstract: An aqueous ink contains at least an aqueous medium, a surfactant, and a dye. The aqueous medium includes only water and at least one water-soluble organic compound(s) and the static surface tension of the aqueous medium is from 45 mN/m or more to 57 mN/m or less. The dynamic surface tension of the aqueous ink satisfies the following conditions: (1) The dynamic surface tension of the aqueous ink at a lifetime of 50 milliseconds is from 42 mN/m or more to less than 49 mN/m; (2) The dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is from 28 mN/m or more to 38 mN/m or less; and (3) A difference between the dynamic surface tension of the aqueous ink at a lifetime of 50 milliseconds and the dynamic surface tension of the aqueous ink at a lifetime of 500 milliseconds is 7 mN/m or more.
    Type: Application
    Filed: May 7, 2008
    Publication date: September 9, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Kudo, Kenji Moribe
  • Publication number: 20100173461
    Abstract: In a method of fabricating a semiconductor device having a MISFET of trench gate structure, a trench is formed from a major surface of a semiconductor layer of first conductivity type which serves as a drain region, in a depth direction of the semiconductor layer, a gate insulating film including a thermal oxide film and a deposited film is formed over the internal surface of the trench, and after a gate electrode has been formed in the trench, impurities are introduced into the semiconductor substrate of first conductivity type to form a semiconductor region of second conductivity type which serves as a channel forming region, and impurities are introduced into the semiconductor region of second conductivity type to form the semiconductor region of first conductivity type which serves as a source region.
    Type: Application
    Filed: March 15, 2010
    Publication date: July 8, 2010
    Applicants: RENESAS TECHNOLOGY CORP., HITACHI ULSI SYSTEMS CO., LTD.
    Inventors: Sumito Numazawa, Yoshito Nakazawa, Masayoshi Kobayashi, Satoshi Kudo, Yasuo Imai, Sakae Kubo, Takashi Shigematsu, Akihiro Ohnishi, Kozo Uesawa, Kentaro Oishi
  • Publication number: 20100162947
    Abstract: A silica glass crucible used for pulling up a silicon single crystal and made from natural silica a raw material is provided with a region within a certain range from the center of a bottom section of the crucible and up to 0.5 mm deep from an inner surface and which substantially does not include gas bubbles, wherein an average value of a concentration of Al included in a region within the certain range from the center of the bottom section of the crucible and up to 0.5 mm deep from the inner surface is 30 ppm or more and 150 ppm or less. In the case where the inner layer of the crucible bottom section is formed in this way, dents in the inner surface are prevented and the generation of gas bubbles is reduced.
    Type: Application
    Filed: December 28, 2009
    Publication date: July 1, 2010
    Applicant: JAPAN SUPER QUARTZ CORPORATION
    Inventors: Kazuhiro HARADA, Satoshi KUDO
  • Publication number: 20100147213
    Abstract: A silica glass crucible for pulling up a silicon single crystal including an outer layer formed from a natural silica glass layer, and an inner layer formed from a synthetic silica glass layer, wherein the synthetic silica glass layer includes a first synthetic silica glass layer formed in a region within a certain range from the center of a crucible bottom section, and a second synthetic silica glass layer formed in a region which excludes the formation region of the first synthetic silica glass layer, and wherein the first synthetic silica glass layer has a thickness of 0.5 mm or more and 1.5 mm or less and a concentration of an OH group included in the first synthetic silica glass layer being 100 ppm or less.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 17, 2010
    Applicant: JAPAN SUPER QUARTZ CORPORATION
    Inventors: Kazuhiro HARADA, Masaki MORIKAWA, Satoshi KUDO