Patents by Inventor Keizo Nakagawa

Keizo Nakagawa 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: 11607652
    Abstract: The objective of the present invention is to provide a composite separation membrane which is excellent in not only a liquid permeable performance and a separation performance relatively but also a durability and which is particularly useful as a membrane for liquid treatment, and a method for treating a liquid by using the composite separation membrane. The composite separation membrane according to the present invention is characterized in comprising a supporting base material and a complex layer, wherein the complex layer is placed on the supporting base material, the complex layer comprises oxidized metal nanosheets, graphene oxide and an alkanolamine, and at least one of the alkanolamine is present between the oxidized metal nanosheets.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: March 21, 2023
    Assignee: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY
    Inventors: Keizo Nakagawa, Misato Kunimatsu, Tomohiro Sera, Takuji Shintani, Tomohisa Yoshioka, Hideto Matsuyama
  • Publication number: 20210237004
    Abstract: The objective of the present invention is to provide a composite separation membrane which is excellent in not only a liquid permeable performance and a separation performance relatively but also a durability and which is particularly useful as a membrane for liquid treatment, and a method for treating a liquid by using the composite separation membrane. The composite separation membrane according to the present invention is characterized in comprising a supporting base material and a complex layer, wherein the complex layer is placed on the supporting base material, the complex layer comprises oxidized metal nanosheets, graphene oxide and an alkanolamine, and at least one of the alkanolamine is present between the oxidized metal nanosheets.
    Type: Application
    Filed: January 29, 2019
    Publication date: August 5, 2021
    Applicant: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY
    Inventors: Keizo NAKAGAWA, Misato KUNIMATSU, Tomohiro SERA, Takuji SHINTANI, Tomohisa YOSHIOKA, Hideto MATSUYAMA
  • Patent number: 9005504
    Abstract: A method of manufacturing a resin molded electronic component using a first mold having a cavity with an open top surface and a second mold combined with the first mold on top includes the following steps: (A) inserting a element of the electronic component and a liquid resin precursor into the cavity of the first mold, the liquid resin precursor having viscosity of 10 Pa·s or lower at 40° C.; (B) arranging the second mold such that the element and the resin precursor are sandwiched after the step (A); and (C) pressing the element and the resin precursor between the first mold and the second mold, and curing the resin precursor by heat from the second mold after the step (B). A temperature of the second mold is set to be higher than that of the first mold.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: April 14, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Junichi Kurita, Hiroshi Takahashi, Kenji Kuranuki, Motoaki Morioka, Keizo Nakagawa, Masashi Minakuchi, Yukihiro Shimasaki
  • Publication number: 20110127694
    Abstract: A method of manufacturing a resin molded electronic component using a first mold having a cavity with an open top surface and a second mold combined with the first mold on top includes the following steps: (A) inserting a element of the electronic component and a liquid resin precursor into the cavity of the first mold, the liquid resin precursor having viscosity of 10 Pa·s or lower at 40° C.; (B) arranging the second mold such that the element and the resin precursor are sandwiched after the step (A); and (C) pressing the element and the resin precursor between the first mold and the second mold, and curing the resin precursor by heat from the second mold after the step (B). A temperature of the second mold is set to be higher than that of the first mold.
    Type: Application
    Filed: June 17, 2010
    Publication date: June 2, 2011
    Inventors: Junichi Kurita, Hiroshi Takahashi, Kenji Kuranuki, Motoaki Morioka, Keizo Nakagawa, Masashi Minakuchi, Yukihiro Shimasaki
  • Publication number: 20080299369
    Abstract: Various metal oxide nanosheets with uniform thickness under mild conditions and in a short time are provided. A mixed solution containing a surfactant such as laurylamine and a metal alkoxide are allowed to flow over water surface to obtain a composite nanosheet. The composite nanosheet comprises a lamella molecular film consisting of a surfactant, and a metal oxide nanosheet formed along the surface of the molecular film. If necessary, the composite nanosheet was separated and then immersed in a solvent in which the surfactant can be dissolved, to separate the metal oxide nanosheet from the molecular film.
    Type: Application
    Filed: July 1, 2005
    Publication date: December 4, 2008
    Applicant: KYOTO UNIVERSITY
    Inventors: Motonari Adachi, Keizo Nakagawa, Yusuke Murata, Kensuke Sagoh, Yukihiro Nishikawa
  • Patent number: 4270953
    Abstract: This invention provides a novel antifouling paint which has excellent storage stability for a long period of time and which affords a coated film having antifouling properties for a long period of time. The paint comprises two components, Component A and Component B, said Component A and said Component B being in separate packages which are mixed before application, wherein Component A contains organotin polymer as antifouling ingredient, and wherein Component B comprises vehicle resin and copper antifoulant.
    Type: Grant
    Filed: March 6, 1979
    Date of Patent: June 2, 1981
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Keizo Nakagawa, Katsushi Yamano, Takashi Watanabe, Kunio Yamamoto, Shigeo Inomata