Patents by Inventor Yoshio Otsuki

Yoshio Otsuki 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 removing stains from structural surfaces
    Patent number: 6325862
    Abstract: A method for removing a stain from a surface of a structure which includes the steps of spraying an aggregating agent comprising a cationic linear organic polymer onto the surface of such structure having a stain produced thereon, dissociating the stain particles by use of Coulomb force f generated between the stain particles and the aggregating agent, displacing slightly the stain particles along the surface of the structure to cause peeling thereof from the surface to be cleaned, and simultaneously, aggregating the same for cleaning. Another embodiment includes maintaining water permeability of a road by easily eliminating a stain adhering to the surfaces of granular aggregate particles forming a drainage-type pavement layer of a road without the use of various mechanical tools.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: December 4, 2001
    Assignee: Kabushiki Kaisha Hanogumi
    Inventor: Yoshio Otsuki
  • Method of removing stains from structural surface
    Patent number: 6171406
    Abstract: A method for removing a stain from a surface of a structure which includes the steps of spraying an aggregating agent comprising a cationic linear organic polymer onto the surface of such structure having a stain produced thereon, dissociating the stain particles by use of Coulomb force f generated between the stain particles and the aggregating agent, displacing slightly the stain particles along the surface of the structure to cause peeling thereof from the surface to be cleaned, and simultaneously, aggregating the same for cleaning. Another embodiment includes maintaining water permeability of a road by easily eliminating a stain adhering to the surfaces of granular aggregate particles forming a drainage-type pavement layer of a road without the use of various mechanical tools.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: January 9, 2001
    Assignee: Kabushiki Kaisha Hanogumi
    Inventor: Yoshio Otsuki
  • Buffer circuits
    Patent number: 4417163
    Abstract: The buffer circuit is provided with a high sensitivity balanced type flip-flop circuit and a capacative coupling provided by MOS capacitance, and a load drive circuit utilizes bootstrap effect, thus producing complementary signals having a MOS level from a TTL address input signal.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: November 22, 1983
    Assignees: Oki Electric Industry Co., Ltd., Nippon Telegraph and Telephone Public Corporation
    Inventors: Yoshio Otsuki, Masaru Uesugi, Nobuaki Ieda