Patents by Inventor Yukiyasu Kashiwagi

Yukiyasu Kashiwagi 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: 11084915
    Abstract: Provided is a means capable of realizing a surface-roughening method for modifying the surface of a resin molded article to form a surficial layer, such as a coating or plating, or to impart a function derived from the surface configuration. The method comprises adding a resin composition and performing a post-treatment and is thus simpler and easier than conventional methods. The resin composition is a composition for resin surface roughening that contains an aliphatic polycarbonate and an alkali metal salt.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: August 10, 2021
    Assignees: Sumitomo Seika Chemicals Co., Ltd., Osaka Research Institute of Industrial Science and Technology
    Inventors: Kiyoshi Nishioka, Hiroki Maeda, Kei Ishikura, Kimihiro Matsukawa, Yukiyasu Kashiwagi, Masashi Saitoh
  • Patent number: 10756383
    Abstract: General Formula (I) Provided is an all solid state secondary-battery additive comprising a polyalkylene carbonate (I) represented by general formula (I), and by providing such additive, properties such as the charge-discharge capacity and interfacial resistance of an all-solid-state secondary battery are improved. (In general formula (I), R1 and R2 are each a C1-10 chain-like alkylene group or C3-10 cycloalkylene group, m is 0, 1, or 2 and n is an integer of 10 to 15000, and each R1, R2 and m in the polyalkylene carbonate (I) chain is independently the same or different.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: August 25, 2020
    Assignees: OSAKA RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGY, SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Masanari Takahashi, Mari Yamamoto, Yasuyuki Kobayashi, Shingo Ikeda, Yukiyasu Kashiwagi, Masashi Saitoh, Shuichi Karashima, Kiyoshi Nishioka, Ryo Miyabara
  • Publication number: 20180371197
    Abstract: Provided is a means capable of realizing a surface-roughening method for modifying the surface of a resin molded article to form a surficial layer, such as a coating or plating, or to impart a function derived from the surface configuration. The method comprises adding a resin composition and performing a post-treatment and is thus simpler and easier than conventional methods. The resin composition is a composition for resin surface roughening that contains an aliphatic polycarbonate and an alkali metal salt.
    Type: Application
    Filed: December 26, 2016
    Publication date: December 27, 2018
    Applicants: SUMITOMO SEIKA CHEMICALS CO., LTD., OSAKA RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Kiyoshi NISHIOKA, Hiroki MAEDA, Kei ISHIKURA, Kimihiro MATSUKAWA, Yukiyasu KASHIWAGI, Masashi SAITOH
  • Publication number: 20180241077
    Abstract: General Formula (I) Provided is an all solid state secondary-battery additive comprising a polyalkylene carbonate (I) represented by general formula (I), and by providing such additive, properties such as the charge-discharge capacity and interfacial resistance of an all-solid-state secondary battery are improved. (In general formula (I), R1 and R2 are each a C1-10 chain-like alkylene group or C3-10 cycloalkylene group, m is 0, 1, or 2 and n is an integer of 10 to 15000, and each R1, R2 and m in the polyalkylene carbonate (I) chain is independently the same or different.
    Type: Application
    Filed: August 16, 2016
    Publication date: August 23, 2018
    Applicants: OSAKA RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGY, SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Masanari Takahashi, Mari Yamamoto, Yasuyuki Kobayashi, Shingo Ikeda, Yukiyasu Kashiwagi, Masashi Saitoh, Shuichi Karashima, Kiyoshi Nishioka, Ryo Miyabara
  • Patent number: 9414487
    Abstract: The present invention provides a metal paste composition which can obtain the calcined bodies having low volume resistivity in a wiring substrate after calcining. More specifically, the present invention provides a metal paste composition comprising a metal, an aliphatic polycarbonate, and an organic solvent.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: August 9, 2016
    Assignees: SUMITOMO SEIKA CHEMICALS CO., LTD., OSAKA MUNICIPAL TECHNICAL RESEARCH INSTITUTE
    Inventors: Nobutaka Fujimoto, Tomoki Kawakita, Ryou Miyabara, Masami Nakamoto, Toshinobu Ohno, Mari Yamamoto, Yukiyasu Kashiwagi
  • Patent number: 8999206
    Abstract: Metal nanoparticles having improved migration resistance are provided. The present invention relates to a method for manufacturing composite nanoparticles including obtaining composite nanoparticles containing at least silver and copper in a single particle by heat treating a mixture containing an organic silver compound and an organic copper compound at a temperature of 150° C. or more in a non-oxidative atmosphere in the presence of a tertiary amine compound represented by the general formula R1R2R3N (wherein R1 through R3 are optionally substituted alkyl groups or aryl groups that may be the same or different, R1 through R3 may be linked in a ring, and the number of carbon atoms in each of R1 through R3 is 5 through 18 and may be the same or different).
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: April 7, 2015
    Assignees: Osaka Municipal Technical Research Institute, Daiken Chemical Co., Ltd.
    Inventors: Masami Nakamoto, Mari Yamamoto, Yukiyasu Kashiwagi, Yukio Yoshida, Hiroshi Kakiuchi, Shinsuke Matsumura
  • Patent number: 8784702
    Abstract: Copper-containing nanoparticles with excellent oxidation resistance is provided. The present invention relates to a method for manufacturing copper-containing nanoparticles including obtaining copper-containing nanoparticles that contain an organic component by heat treating an organic copper compound at a temperature equal to or higher than a decomposition initiation temperature of the compound and lower than a complete decomposition temperature of the compound in a non-oxidative atmosphere in the presence of an organic material containing a 1,2-alkanediol having 5 or more carbon atoms and/or a derivative thereof.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: July 22, 2014
    Assignees: Osaka Municipal Technical Research Institute, Daiken Chemical Co., Ltd.
    Inventors: Masami Nakamoto, Mari Yamamoto, Yukiyasu Kashiwagi, Yukio Yoshida, Hiroshi Kakiuchi, Shinsuke Matsumura
  • Publication number: 20140008588
    Abstract: The present invention provides a metal paste composition which can obtain the calcined bodies having low volume resistivity in a wiring substrate after calcining. More specifically, the present invention provides a metal paste composition comprising a metal, an aliphatic polycarbonate, and an organic solvent.
    Type: Application
    Filed: March 6, 2012
    Publication date: January 9, 2014
    Applicants: OSAKA MUNICIPAL TECHNICAL RESEARCH INSTITUTE, SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Nobutaka Fujimoto, Tomoki Kawakita, Ryou Miyabara, Masami Nakamoto, Toshinobu Ohno, Mari Yamamoto, Yukiyasu Kashiwagi
  • Publication number: 20110193033
    Abstract: Metal nanoparticles having improved migration resistance are provided. The present invention relates to a method for manufacturing composite nanoparticles including obtaining composite nanoparticles containing at least silver and copper in a single particle by heat treating a mixture containing an organic silver compound and an organic copper compound at a temperature of 150° C. or more in a non-oxidative atmosphere in the presence of a tertiary amine compound represented by the general formula R1R2R3N (wherein R1 through R3 are optionally substituted alkyl groups or aryl groups that may be the same or different, R1 through R3 may be linked in a ring, and the number of carbon atoms in each of R1 through R3 is 5 through 18 and may be the same or different).
    Type: Application
    Filed: August 6, 2009
    Publication date: August 11, 2011
    Applicants: OSAKA MUNICIPAL TECHNICAL RESEARCH INSTITUTE, DAIKEN CHEMICAL CO., LTD.
    Inventors: Masami Nakamoto, Mari Yamamoto, Yukiyasu Kashiwagi, Yukio Yoshida, Hiroshi Kakiuchi, Shinsuke Matsumura
  • Publication number: 20110193034
    Abstract: Copper-containing nanoparticles with excellent oxidation resistance is provided. The present invention relates to a method for manufacturing copper-containing nanoparticles including obtaining copper-containing nanoparticles that contain an organic component by heat treating an organic copper compound at a temperature equal to or higher than a decomposition initiation temperature of the compound and lower than a complete decomposition temperature of the compound in a non-oxidative atmosphere in the presence of an organic material containing a 1,2-alkanediol having 5 or more carbon atoms and/or a derivative thereof.
    Type: Application
    Filed: August 6, 2009
    Publication date: August 11, 2011
    Applicants: OSAKA MUNICIPAL TECHNICAL RESEARCH INSTITUTE, DAIKEN CHEMICAL CO., LTD.
    Inventors: Masami Nakamoto, Mari Yamamoto, Yukiyasu Kashiwagi, Yukio Yoshida, Hiroshi Kakiuchi, Shinsuke Matsumura