Patents by Inventor Tatsuro Ishitobi

Tatsuro Ishitobi 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: 20240051267
    Abstract: Aluminum alloy foil that, when used for battery packaging material, unlikely to develop pinholes or cracks even during molding of battery packaging material, and can exhibit excellent moldability. Aluminum alloy foil, which is for use in battery packaging material, wherein, with respect to cross section obtained by cutting aluminum alloy foil in vertical direction to rolling direction of aluminum alloy foil, which is a vertical direction to surface of aluminum alloy foil, proportion of total area of a {111} plane in total area of crystal planes of face-centered cubic structure, obtained by performing crystal analysis using EBSD method, is 10% or more; and with respect to cross section, a number average grain diameter R (?m) of crystals in face-centered cubic structure, obtained by performing crystal analysis using EBSD method, satisfies following equation: number average grain diameter R?0.056X+2.0, where X=thickness (?m) of aluminum alloy foil.
    Type: Application
    Filed: October 11, 2023
    Publication date: February 15, 2024
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Atsuko TAKAHAGI, Tatsuro ISHITOBI, Chiaki HATSUTA, Makoto KOMUKAI, Mayo SUGANO
  • Patent number: 11820104
    Abstract: Aluminum alloy foil that, when used for battery packaging material, unlikely to develop pinholes or cracks even during molding of battery packaging material, and can exhibit excellent moldability. Aluminum alloy foil, which is for use in battery packaging material, wherein, with respect to cross section obtained by cutting aluminum alloy foil in vertical direction to rolling direction of aluminum alloy foil, which is a vertical direction to surface of aluminum alloy foil, proportion of total area of a {111} plane in total area of crystal planes of face-centered cubic structure, obtained by performing crystal analysis using EBSD method, is 10% or more; and with respect to cross section, a number average grain diameter R (?m) of crystals in face-centered cubic structure, obtained by performing crystal analysis using EBSD method, satisfies following equation: number average grain diameter R?0.056X+2.0, where X=thickness (?m) of aluminum alloy foil.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: November 21, 2023
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Atsuko Takahagi, Tatsuro Ishitobi, Chiaki Hatsuta, Makoto Komukai, Mayo Sugano
  • Publication number: 20220140426
    Abstract: Aluminum alloy foil that, when used for battery packaging material, unlikely to develop pinholes or cracks even during molding of battery packaging material, and can exhibit excellent moldability. Aluminum alloy foil, which is for use in battery packaging material, wherein, with respect to cross section obtained by cutting aluminum alloy foil in vertical direction to rolling direction of aluminum alloy foil, which is a vertical direction to surface of aluminum alloy foil, proportion of total area of a {111} plane in total area of crystal planes of face-centered cubic structure, obtained by performing crystal analysis using EBSD method, is 10% or more; and with respect to cross section, a number average grain diameter R (?m) of crystals in face-centered cubic structure, obtained by performing crystal analysis using EBSD method, satisfies following equation: number average grain diameter R?0.056X+2.0, where X=thickness (?m) of aluminum alloy foil.
    Type: Application
    Filed: January 11, 2022
    Publication date: May 5, 2022
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Atsuko Takahagi, Tatsuro Ishitobi, Chiaki Hatsuta, Makoto Komukai, Mayo Sugano
  • Patent number: 11258123
    Abstract: Aluminum alloy foil that, when used for battery packaging material, unlikely to develop pinholes or cracks even during molding of battery packaging material, and can exhibit excellent moldability. Aluminum alloy foil, which is for use in battery packaging material, wherein, with respect to cross section obtained by cutting aluminum alloy foil in vertical direction to rolling direction of aluminum alloy foil, which is a vertical direction to surface of aluminum alloy foil, proportion of total area of a {111} plane in total area of crystal planes of face-centered cubic structure, obtained by performing crystal analysis using EBSD method, is 10% or more; and with respect to cross section, a number average grain diameter R (rpm) of crystals in face-centered cubic structure, obtained by performing crystal analysis using EBSD method, satisfies following equation: number average grain diameter R?0.056X+2.0, where X=thickness (rpm) of aluminum alloy foil.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: February 22, 2022
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Atsuko Takahagi, Tatsuro Ishitobi, Chiaki Hatsuta, Makoto Komukai, Mayo Sugano
  • Publication number: 20190363312
    Abstract: Aluminum alloy foil that, when used for battery packaging material, unlikely to develop pinholes or cracks even during molding of battery packaging material, and can exhibit excellent moldability. Aluminum alloy foil, which is for use in battery packaging material, wherein, with respect to cross section obtained by cutting aluminum alloy foil in vertical direction to rolling direction of aluminum alloy foil, which is a vertical direction to surface of aluminum alloy foil, proportion of total area of a {111} plane in total area of crystal planes of face-centered cubic structure, obtained by performing crystal analysis using EBSD method, is 10% or more; and with respect to cross section, a number average grain diameter R (rpm) of crystals in face-centered cubic structure, obtained by performing crystal analysis using EBSD method, satisfies following equation: number average grain diameter R?0.056X+2.0, where X=thickness (rpm) of aluminum alloy foil.
    Type: Application
    Filed: December 27, 2017
    Publication date: November 28, 2019
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Atsuko TAKAHAGI, Tatsuro ISHITOBI, Chiaki HATSUTA, Makoto KOMUKAI, Mayo SUGANO
  • Patent number: 8841356
    Abstract: Disclosed is an ink composition which has superior storage stability, is resistant to bleeding, has good fixability to paper, and enables printing of a clear image. The ink composition includes a pigment dispersion containing a surface-treated pigment and a resin emulsion, wherein the surface-treated pigment is obtained by binding a functional group, having a larger calcium index than a calcium index of 1,2,3-benzenetricarboxylic acid, to the surface of a pigment; and the resin emulsion is adapted so that an aqueous solution containing 1 mass % of a solid content of the resin emulsion has a conductance of 300 ?S/cm or less.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: September 23, 2014
    Assignee: DNP Fine Chemicals Co., Ltd.
    Inventors: Satoshi Shioda, Tatsuro Ishitobi, Takao Otomaru, Rumiko Matsuo, Masaki Inumaru, Yukio Sugita, Fumie Yamazaki, Naoki Shiraishi, Mitsuyoshi Tamura, Ataru Miyata
  • Patent number: 8421962
    Abstract: There is provided a color filter which can be manufactured by a simplified process and which will not short-circuit an electrode of a TFT substrate. The color filter includes a substrate, and a red layer, a green layer and a blue layer, formed on the substrate. When forming the green layer and the blue layer, these layers are not only formed on the substrate, but also laminated on the red layer to form a spacer comprised of the green layer and the blue layer, laminated on the red layer. The color filter further includes a transparent electrode layer which covers the substrate, the red layer, the green layer, the blue layer and the spacer, and an insulating black matrix layer formed on predetermined areas of the transparent electrode layer.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: April 16, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Tatsuro Ishitobi, Hideaki Yamagata, Koji Arai, Masatoshi Oba, Masahiro Takahashi, Masayuki Uchida
  • Publication number: 20120308786
    Abstract: Disclosed is an ink composition which has superior storage stability, is resistant to bleeding, has good fixability to paper, and enables printing of a clear image. The ink composition includes a pigment dispersion containing a surface-treated pigment and a resin emulsion, wherein the surface-treated pigment is obtained by binding a functional group, having a larger calcium index than a calcium index of 1,2,3-benzenetricarboxylic acid, to the surface of a pigment; and the resin emulsion is adapted so that an aqueous solution containing 1 mass % of a solid content of the resin emulsion has a conductance of 300 ?S/cm or less.
    Type: Application
    Filed: September 30, 2010
    Publication date: December 6, 2012
    Inventors: Satoshi Shioda, Tatsuro Ishitobi, Takao Otomaru, Rumiko Matsuo, Eiichi Miyata, Ataru Miyata, Masaki Inumaru, Yukio Sugita, Fumie Yamazaki, Naoki Shiraishi, Mitsuyoshi Tamura
  • Publication number: 20100265439
    Abstract: There is provided a color filter which can be manufactured by a simplified process and which will not short-circuit an electrode of a TFT substrate. The color filter includes a substrate, and a red layer, a green layer and a blue layer, formed on the substrate. When forming the green layer and the blue layer, these layers are not only formed on the substrate, but also laminated on the red layer to form a spacer comprised of the green layer and the blue layer, laminated on the red layer. The color filter further includes a transparent electrode layer which covers the substrate, the red layer, the green layer, the blue layer and the spacer, and an insulating black matrix layer formed on predetermined areas of the transparent electrode layer.
    Type: Application
    Filed: December 3, 2008
    Publication date: October 21, 2010
    Applicant: Dai Nippon Printing Co., Ltd
    Inventors: Tatsuro Ishitobi, Hideaki Yamagata, Koji Arai, Masatoshi Oba, Masahiro Takahashi, Masayuki Uchida
  • Publication number: 20060261328
    Abstract: The present invention provides blue-light emitting compounds capable of emitting blue light at a high luminance for a long time upon the application of electric energy, processes of producing the compounds, and luminescent elements including the blue light-emitting compounds. One of the compounds according to the present invention is characterized by the chemical structure represented by formula (1).
    Type: Application
    Filed: March 15, 2004
    Publication date: November 23, 2006
    Inventors: Tadao Nakaya, Ryoji Matsumoto, Michiaki Tobita, Tomoyuki Saikawa, Naonobu Eto, Tatsuro Ishitobi
  • Publication number: 20060152144
    Abstract: The objective of the present invention is to provide a blue light-emitting polymer capable of emitting blue light for a long time, and further excellent in durability, processes of producing the polymer, and a luminescent element. The blue light-emitting polymer of the invention has a repeating unit represented by formula (1): wherein each of Ar1 and Ar2 is a benzene derivative, a naphthalene derivative, or an anthracene derivative. The present invention also provides processes of producing the blue light-emitting polymer, and a luminescent element including the polymer.
    Type: Application
    Filed: June 24, 2004
    Publication date: July 13, 2006
    Inventors: Tadao Nakaya, Tatsuro Ishitobi, Michiaki Tobita, Tomoyuki Saikawa
  • Publication number: 20050089716
    Abstract: The present invention provides a light-emitting compound and a light-emitting polymer capable of emitting white light themselves, and a luminescent element including them. The compound has the structure represented by general formula (1). The polymer has the repeating unit represented by formula (3).
    Type: Application
    Filed: September 21, 2004
    Publication date: April 28, 2005
    Inventors: Tadao Nakaya, Ryoji Matsumoto, Tatsuro Ishitobi
  • Publication number: 20040234814
    Abstract: In view of the fact that luminescent compounds and polymers capable of emitting blue light for a long time and excellent in durability have not been developed, the present invention provides blue light-emitting compounds having special structures, blue light-emitting polymers having special repeating units, processes of producing the compounds, and luminescent elements including the polymers.
    Type: Application
    Filed: May 13, 2004
    Publication date: November 25, 2004
    Inventors: Tadao Nakaya, Michiaki Tobita, Tomoyuki Saikawa, Tatsuro Ishitobi, Takashi Ushijima, Shinji Takano, Akio Tajima