Patents by Inventor Ichiro Kunihiro

Ichiro Kunihiro 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: 10518925
    Abstract: The objective of the present invention is to provide a molded paper body in which the outer peripheral portion of a blank primarily of paper is formed in a raised shape using draw processing, wherein the molded paper body eliminates the occurrence of wrinkles causing leaking or instability of adhesion when used as the bottom member of a paper cup or similar paper container and a forming method thereof. The method for manufacturing this molded paper body is to draw-process, with a punch and die, a single blank primarily of paper, and is characterized by use of a holding mechanism to press the outer peripheral portion of the blank between a wrinkle pressing member and the die upper surface, and setting the force applied by the wrinkle pressing member within an appropriate range.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: December 31, 2019
    Assignees: TOYO SEIKAN GROUP HOLDINGS, LTD., TOKAN KOGYO CO., LTD.
    Inventors: Ichiro Kunihiro, Seiji Okabe
  • Publication number: 20170191151
    Abstract: A raised resin portion 8, 9 is formed by thermally spraying a powdered resin on a local portion such as a bonding step portion of a cup-shaped formed paper article 1 to improve sealing performance of the formed paper article and form a resin coating layer 60 including a scorching-preventing substance on a local region where scorching tends to occur during heating in a microwave oven. The raised resin portion is formed on the local region by intermittently discharging the resin powder from a tank with a shutter device and repeatedly thermally spraying the resin powder on the local region with a pressurized gas.
    Type: Application
    Filed: May 29, 2015
    Publication date: July 6, 2017
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventor: Ichiro Kunihiro
  • Patent number: 9630372
    Abstract: The objective of the present invention is to provide a method of forming a pressed paper piece by deep drawing a sheet of blank that is primarily made of paper in use of a punch and a die, and a production apparatus for implementing the method, whereby no distinguishable wrinkles are formed in upright portions of the pressed paper piece. The method of producing a pressed paper piece according to the present invention, implemented when deep drawing a sheet-like blank that is primarily made of paper in use of a punch and a die, includes maintaining a predetermined gap between a first blank holder and the die in an outer peripheral region of a process portion of the blank and applying a pressure to a radially inner region thereof via a second blank holder, thereby reducing wrinkling by an effect of integrated functions exerted in both regions of the blank.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: April 25, 2017
    Assignees: TOYO SEIKAN GROUP HOLDINGS, LTD., TOKAN KOGYO CO., LTD.
    Inventors: Kenichi Takao, Ichiro Kunihiro, Masahiro Ogawa, Seiji Okabe
  • Publication number: 20150008621
    Abstract: The objective of the present invention is to provide a method of forming a pressed paper piece by deep drawing a sheet of blank that is primarily made of paper in use of a punch and a die, and a production apparatus for implementing the method, whereby no distinguishable wrinkles are formed in upright portions of the pressed paper piece. The method of producing a pressed paper piece according to the present invention, implemented when deep drawing a sheet-like blank that is primarily made of paper in use of a punch and a die, includes maintaining a predetermined gap between a first blank holder and the die in an outer peripheral region of a process portion of the blank and applying a pressure to a radially inner region thereof via a second blank holder, thereby reducing wrinkling by an effect of integrated functions exerted in both regions of the blank.
    Type: Application
    Filed: January 10, 2013
    Publication date: January 8, 2015
    Applicants: TOYO SEIKAN GROUP HOLDINGS, LTD., TOKAN KOGYO CO., LTD.
    Inventors: Kenichi Takao, Ichiro Kunihiro, Masahiro Ogawa, Seiji Okabe
  • Publication number: 20140255630
    Abstract: The objective of the present invention is to provide a molded paper body in which the outer peripheral portion of a blank primarily of paper is formed in a raised shape using draw processing, wherein the molded paper body eliminates the occurrence of wrinkles causing leaking or instability of adhesion when used as the bottom member of a paper cup or similar paper container and a forming method thereof. The method for manufacturing this molded paper body is to draw-process, with a punch and die, a single blank primarily of paper, and is characterized by use of a holding mechanism to press the outer peripheral portion of the blank between a wrinkle pressing member and the die upper surface, and setting the force applied by the wrinkle pressing member within an appropriate range.
    Type: Application
    Filed: October 2, 2012
    Publication date: September 11, 2014
    Applicants: TOYO SEIKAN GROUP HOLDINGS, LTD., TOKAN KOGYO CO., LTD.
    Inventors: Ichiro Kunihiro, Seiji Okabe
  • Patent number: 7866886
    Abstract: In the pouch of the present invention in which a pouring spout is formed by means of a heat-sealed part and a non-heat-sealed part by heat sealing plastic films, the inside surfaces of the films that form the portion of the boundary area between the heat-sealed part and non-heat-sealed part of the pouring spout passage on the side of the non-heat-sealed part contact each other so that no gaps are left in a closed state. Accordingly, even if the pouch is suspended with the pouring spout down following the opening of the pouring spout, the leakage of the contents such as a liquid or the like accommodated in the interior of the pouch from the pouring spout a small amount at a time can be securely prevented.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: January 11, 2011
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Kazuyuki Kurosawa, Naoto Matsuda, Ichiro Kunihiro
  • Publication number: 20090011146
    Abstract: A vapor deposition film formation method includes a step for arranging a surface wave generating device (10) using a microwave in a vacuum region, a step for continuously feeding a plastic film substrate (13) into the vacuum region so as to oppose to the surface wave generating device, a step of continuously supplying a reaction gas containing at least organic metal compound into the vacuum region, and a step for executing plasma reaction by the surface wave of the microwave from the surface wave generating device (10), thereby continuously forming a vapor deposition film on the surface of the film substrate (13). This method enables continuous formation of a vapor deposition film on the surface of a film substrate, especially a long film, by the surface wave plasma of the microwave.
    Type: Application
    Filed: April 3, 2006
    Publication date: January 8, 2009
    Applicant: TOYO SEIKAN KAISHA, LTD.
    Inventors: Kouji Yamada, Ichiro Kunihiro, Hajime Inagaki, Hideo Kurashima
  • Publication number: 20060072858
    Abstract: In the pouch of the present invention in which a pouring spout (3) is formed by means of a heat-sealed part (2) and a non-heat-sealed part (6) by heat sealing plastic films, the inside surfaces of the films that form the portion of the boundary area (Y) between the heat-sealed part (2) and non-heat-sealed part (6) of the pouring spout passage (4) on the side of the non-heat-sealed part (6) contact each other so that no gaps are left in a closed state. Accordingly, even if the pouch is suspended with the pouring spout (3) down following the opening of the pouring spout (3), the leakage of the contents such as a liquid or the like accommodated in the interior of the pouch from the pouring spout (3) a small amount at a time can be securely prevented. The gap-free contact of the inside surfaces of the films can be accomplished by uniformly pressing the films in the boundary area (Y).
    Type: Application
    Filed: November 22, 2002
    Publication date: April 6, 2006
    Inventors: Kazuyuki Kurosawa, Naoto Matsuda, Ichiro Kunihiro