Patents by Inventor Masanobu Yumoto

Masanobu Yumoto 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 for improving mechanical strength of glass articles
    Patent number: 5889074
    Abstract: A method for improving mechanical strength of a glass article includes coating an active energy ray-curable composition of a silane coupling agent, a curable compound and water on the glass article, and then curing with irradiated active energy ray.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: March 30, 1999
    Assignees: Dainippon Ink and Chemicals, Inc., Yamamura Glass, Co., Ltd
    Inventors: Yutaka Hashimoto, Masanobu Yumoto, Hiromu Chano, Yutaka Kamada, Shigeo Kawaguchi
  • Active energy ray-curable composition and applicable method
    Patent number: 5717004
    Abstract: The composition of the present invention is curable by active energy ray. It is a mixture including a coupling agent, an active energy ray-curable compound and water. A glass article will show improved mechanical strength if it is coated with the composition of the present invention and irradiated with active energy ray to cure the coating.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: February 10, 1998
    Assignees: Dainippon Ink & Chemicals, Inc., Yamamura Glass Co., Ltd.
    Inventors: Yutaka Hashimoto, Masanobu Yumoto, Hiromu Chano, Yutaka Kamada, Shigeo Kawaguchi
  • Curing composition
    Patent number: 5684079
    Abstract: A curing composition for reinforcing an inorganic oxide material or a flawable base is disclosed. The composition comprises a curing compound emulsified and dispersed in water with or without the aid of an emulsifier or a water-soluble high polymer. The composition has excellent preservation stability and is free from the risk of fire or environmental pollution. The process for reinforcing an inorganic oxide material or a flawable base using the composition is also disclosed.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: November 4, 1997
    Assignee: Dainippon Ink and Chemicals Inc.
    Inventors: Masanobu Yumoto, Tsutomu Imai, Hiromu Chano, Torao Higuchi, Yutaka Hashimoto, Masayuki Kamei
  • 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