Patents by Inventor Mitsuhiro Sakemoto

Mitsuhiro Sakemoto 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: 4111323
    Abstract: A crown closure having a polyolefin liner that can be readily removed, said crown closure comprising a crown shell having a primer layer on its inner surface and a polyolefin liner applied to the inside of said crown shell, characterized in that said primer layer is a two-component priming consisting of an undercoat layer containing a polyethylene oxide and a topcoat layer containing a polyethylene oxide and at least one other compatible resin, with the provision of a printing layer of indicia at the interface between said undercoat and topcoat layers or atop said topcoat layer.
    Type: Grant
    Filed: March 4, 1977
    Date of Patent: September 5, 1978
    Assignee: Japan Crown Cork Co., Ltd.
    Inventors: Isao Ichinose, Mitsuhiro Sakemoto, Noboru Suzuki
  • Patent number: RE30573
    Abstract: A crown closure having a polyolefin liner that can be readily removed, said crown closure comprising a crown shell having a primer layer on its inner surface and a polyolefin liner applied to the inside of said crown shell, characterized in that said primer layer is a two-component priming consisting of an undercoat layer containing .[.a polyethylene oxide.]. .Iadd.an oxidized polyethylene .Iaddend.and a topcoat layer containing .[.a polyethylene oxide.]. .Iadd.an oxidized polyethylene .Iaddend.and at least one other compatible resin, with the provision of a printing layer of indicia at the interface between said undercoat and topcoat layers or atop said topcoat layer. Aforesaid crown closure can be prepared by providing at one face of a metal stock sheet a primer undercoat layer containing .[.a polyethylene oxide.]. .Iadd.an oxidized polyethylene.Iaddend., printing indicia thereon, providing atop said undercoat layer a primer topcoat layer containing .[.a polyethylene oxide.]. .Iadd.
    Type: Grant
    Filed: September 18, 1979
    Date of Patent: April 14, 1981
    Assignee: Japan Crown Cork Co., Ltd.
    Inventors: Isao Ichinose, Mitsuhiro Sakemoto, Noboru Suzuki