Patents by Inventor Sachio Kitagawa

Sachio Kitagawa 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: 11667599
    Abstract: Provided is a metal salt of an alicyclic dicarboxylic acid with excellent dispersibility in polyolefin resins, and excellent crystallinity improving effect that is essential as a crystal nucleating agent for polyolefin resins, regardless of processing conditions. A method is also provided for producing the metal salt of an alicyclic dicarboxylic acid; a crystal nucleating agent containing the metal salt of an alicyclic dicarboxylic acid; a crystal nucleating agent composition for polyolefin resins containing the crystal nucleating agent and a fatty acid metal salt; a polyolefin resin composition containing the crystal nucleating agent; and a polyolefin resin molded article obtained using the polyolefin resin composition. Provided is a metal salt of an alicyclic dicarboxylic acid in which the alicyclic dicarboxylic acid is an alkyl substituent-containing cyclohexane-1,2-dicarboxylic acid, and the metal salt is a calcium salt, a hydroxyaluminum salt, a disodium salt, or a dilithium salt.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: June 6, 2023
    Assignee: NEW JAPAN CHEMICAL CO., LTD.
    Inventors: Shohei Iwasaki, Kazuya Matsumoto, Mitsuko Inoue, Yurie Shinoda, Sachio Kitagawa, Yohei Uchiyama
  • Publication number: 20220048846
    Abstract: Provided is a metal salt of an alicyclic dicarboxylic acid with excellent dispersibility in polyolefin resins, and excellent crystallinity improving effect that is essential as a crystal nucleating agent for polyolefin resins, regardless of processing conditions. A method is also provided for producing the metal salt of an alicyclic dicarboxylic acid; a crystal nucleating agent containing the metal salt of an alicyclic dicarboxylic acid; a crystal nucleating agent composition for polyolefin resins containing the crystal nucleating agent and a fatty acid metal salt; a polyolefin resin composition containing the crystal nucleating agent; and a polyolefin resin molded article obtained using the polyolefin resin composition. Provided is a metal salt of an alicyclic dicarboxylic acid in which the alicyclic dicarboxylic acid is an alkyl substituent-containing cyclohexane-1,2-dicarboxylic acid, and the metal salt is a calcium salt, a hydroxyaluminum salt, a disodium salt, or a dilithium salt.
    Type: Application
    Filed: September 3, 2019
    Publication date: February 17, 2022
    Applicant: NEW JAPAN CHEMICAL CO., LTD.
    Inventors: Shohei Iwasaki, Kazuya Matsumoto, Mitsuko Inoue, Yurie Shinoda, Sachio Kitagawa, Yohei Uchiyama
  • Patent number: 10497603
    Abstract: An electronic component supply body and a method for manufacturing the same, which can suppress generation of wrinkles of an adhesive sheet and is unlikely to cause pickup failure of electronic component chips to occur. The supply body includes an adhesive sheet with an adhesive layer formed with an ultraviolet-curing adhesive, a ring frame bonded onto the adhesive sheet, and electronic component chips bonded onto a first region on the adhesive sheet superimposed with the opening of the ring frame. The second cured portions that are cured by being irradiated with ultraviolet rays are provided in a part of a second region forming a bonded portion between the adhesive sheet and the ring frame. Adhesive strength in the second cured portions in a shearing direction is larger than adhesive strength in a portion of the second region other than the second cured portions.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: December 3, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Sachio Kitagawa, Hiroyoshi Nakagawa
  • Publication number: 20160351433
    Abstract: An electronic component supply body and a method for manufacturing the same, which can suppress generation of wrinkles of an adhesive sheet and is unlikely to cause pickup failure of electronic component chips to occur. The supply body includes an adhesive sheet with an adhesive layer formed with an ultraviolet-curing adhesive, a ring frame bonded onto the adhesive sheet, and electronic component chips bonded onto a first region on the adhesive sheet superimposed with the opening of the ring frame. The second cured portions that are cured by being irradiated with ultraviolet rays are provided in a part of a second region forming a bonded portion between the adhesive sheet and the ring frame. Adhesive strength in the second cured portions in a shearing direction is larger than adhesive strength in a portion of the second region other than the second cured portions.
    Type: Application
    Filed: August 9, 2016
    Publication date: December 1, 2016
    Inventors: Sachio Kitagawa, Hiroyoshi Nakagawa
  • Patent number: 9299908
    Abstract: A piezoelectric actuator that includes a piezoelectric substrate, first and second electrodes, and a conductive layer. The first and second electrodes are configured to apply a voltage to the piezoelectric substrate. The conductive layer is formed on the first electrode. The conductive layer is made of a metal or an alloy different in color from the second electrode.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: March 29, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kimitoshi Nakamura, Hiroshi Nakatani, Masanaga Nishikawa, Sachio Kitagawa
  • Patent number: 7745661
    Abstract: Disclosed are, for example, a process for producing a tricarboxylic acid tris(alkyl-substituted cyclohexylamide), the process comprising subjecting a tricarboxylic acid and an alkyl-substituted cyclohexylamine to an amidation reaction, either (a) in the presence of a boric acid compound and a phenol compound or (b) in the presence of a boric acid ester obtained by the dehydration condensation of a boric acid compound and a phenol compound, and optionally purifying the resulting crude reaction product.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: June 29, 2010
    Assignee: New Japan Chemical Co., Ltd.
    Inventors: Sachio Kitagawa, Masahide Ishikawa, Yoshihiro Ishibashi, Taiichiro Iwamura, Yoshihiro Kihara
  • Publication number: 20090069599
    Abstract: Disclosed are, for example, a process for producing a tricarboxylic acid tris(alkyl-substituted cyclohexylamide), the process comprising subjecting a tricarboxylic acid and an alkyl-substituted cyclohexylamine to an amidation reaction, either (a) in the presence of a boric acid compound and a phenol compound or (b) in the presence of a boric acid ester obtained by the dehydration condensation of a boric acid compound and a phenol compound, and optionally purifying the resulting crude reaction product.
    Type: Application
    Filed: April 5, 2006
    Publication date: March 12, 2009
    Applicant: NEW JAPAN CHEMICAL CO., LTD.,
    Inventors: Sachio Kitagawa, Masahide Ishikawa, Yoshihiro Ishibashi, Taiichiro Iwamura, Yoshihiro Kihara
  • Patent number: 5356566
    Abstract: Disclosed are a polyester compound having a repeating unit represented by the formula--OC--A--COO--BO-- (1)wherein A is a 1,3:2,4-dibenzylidenesorbitol or 1,3:2,4-dibenzylidenexylitol residue of the formula ##STR1## wherein t is 1 or 0, and B is a residue formed by removal of two hydroxyl groups from a polyhydric alcohol, and an organic gelling agent comprising the polyester compound.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: October 18, 1994
    Assignee: New Japan Chemical Co., Ltd.
    Inventors: Toshiaki Kobayashi, Sachio Kitagawa