Patents by Inventor Sigeo Kawaguchi

Sigeo Kawaguchi 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).

  • Method of increasing the dynamical strength of glass container
    Patent number: 4961976
    Abstract: A method of increasing the pressure-resistant strength and impart strength of a glass container, which comprises treating the surface of the glass container with a silane coupling agent, applying a coating material comprising a reactive compound having at least two (meth)acryloyl groups in the molecule to the treated glass container, and subjecting it to irradiation of an activated energy ray to cure the coating material applied; and a method of increasing the pressure-resistant strength and impact strength of a glass container, which comprises applying a coating material comprising a silane coupling agent and a reactive compound having at least two (meth)acryloyl groups in the molecule to the surface of the glass article, and then subjecting the coated glass container to irradiation of an activated energy ray to cure the coating.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: October 9, 1990
    Assignees: Dainippon Ink & Chemicals, Inc., Yamamura Glass Co., Ltd.
    Inventors: Yutaka Hashimoto, Masanobu Yumoto, Toshihiko Umaba, Yutaka Kamada, Tsutomu Matsubara, Sigeo Kawaguchi
  • Method of increasing the dynamical strength of glass container
    Patent number: 4891241
    Abstract: A method of increasing the pressure-resistant strength and impact strength of a glass container, which comprises treating the surface of the glass container with a silane coupling agent, applying a coating material comprising a reactive compound having at least two (meth)acryloyl groups in the molecule to the treated glass container, and subjecting it to irradiation of an activated energy ray to cure the coating material applied; and a method of increasing the pressure-resistant strength and impact strength of a glass container, which comprises applying a coating material comprising a silane coupling agent and a reactive compound having at least two (meth)acryloyl groups in the molecule to the surface of the glass article, and then subjecting the coated glass container to irradiation of an activated energy ray to cure the coating.
    Type: Grant
    Filed: April 28, 1988
    Date of Patent: January 2, 1990
    Assignees: Dainippon Ink & Chemicals, Inc., Yamamura Glass Co., Ltd.
    Inventors: Yutaka Hashimoto, Masanobu Yumoto, Toshihiko Umaba, Yutaka Kamada, Tsutomu Matsubara, Sigeo Kawaguchi