Patents by Inventor Naoaki Hara

Naoaki Hara 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).

  • Polymerization reactor and method for producing water absorbent resin
    Patent number: 10207243
    Abstract: A polymerization reactor of the present invention includes a container body 1 and a jacket 2 covering the outer surface of the container body 1 and defining a passage for passing a cooling/heating medium between itself and the outer surface of the container body. The container body 1 is made of a clad metal plate including a support metal layer 11a having an inner surface at an inner side of the container body and an outer surface at an outer side of the container body, and an inner corrosion-resistant metal skin layer 11b bonded to the inner surface of the support metal layer and being smaller in thickness than the support metal layer.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: February 19, 2019
    Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Nobuhiro Maeda, Naoaki Hara, Junichi Takatori
  • POLYMERIZATION REACTOR AND METHOD FOR PRODUCING WATER ABSORBENT RESIN
    Publication number: 20170282146
    Abstract: A polymerization reactor of the present invention includes a container body 1 and a jacket 2 covering the outer surface of the container body 1 and defining a passage for passing a cooling/heating medium between itself and the outer surface of the container body. The container body 1 is made of a clad metal plate including a support metal layer 11a having an inner surface at an inner side of the container body and an outer surface at an outer side of the container body, and an inner corrosion-resistant metal skin layer 11b bonded to the inner surface of the support metal layer and being smaller in thickness than the support metal layer.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 5, 2017
    Inventors: Nobuhiro MAEDA, Naoaki HARA, Junichi TAKATORI
  • POLYMERIZATION REACTOR AND METHOD FOR PRODUCING WATER ABSORBENT RESIN
    Publication number: 20150080539
    Abstract: A polymerization reactor of the present invention includes a container body 1 and a jacket 2 covering the outer surface of the container body 1 and defining a passage for passing a cooling/heating medium between itself and the outer surface of the container body. The container body 1 is made of a clad metal plate including a support metal layer 11a having an inner surface at an inner side of the container body and an outer surface at an outer side of the container body, and an inner corrosion-resistant metal skin layer 11b bonded to the inner surface of the support metal layer and being smaller in thickness than the support metal layer.
    Type: Application
    Filed: March 25, 2013
    Publication date: March 19, 2015
    Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Nobuhiro Maeda, Naoaki Hara, Junichi Takatori