Patents by Inventor Yasuhito Shimizu

Yasuhito Shimizu 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).

  • Computer controlling method, information apparatus, computer, and storage medium
    Patent number: 6948075
    Abstract: The present invention provides a control method for notification of tampering of information apparatus, a computer, and/or a storage medium. It provides a technique for storing information related to a starting factor of the information apparatus and/or the computer, as well as notifying a certified user of the information apparatus and/or the computer of the information, thereby reporting and/or preventing the information apparatus and/or the computer from an illegitimate and/or illegal use. It enables a user to know that a computer or other information apparatus has been used and/or tampered by an uncertified user.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: September 20, 2005
    Assignee: International Business Machines Corporation
    Inventors: Ken Sasaki, Yasuhito Shimizu, Hidetoshi Mori
  • Water treating method, water treating apparatus, and hydroponic system using the same
    Patent number: 6814853
    Abstract: There is provided a method for water treatment, capable of greatly improving the effect of removing microbes contained in water for eating and drinking, or discharged water.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: November 9, 2004
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yasuhito Kondo, Yasuhito Shimizu, Masahiro Iseki
  • Water treating method, water treating apparatus, and hydrophonic system using the same
    Publication number: 20020170830
    Abstract: There is provided a method for water treatment, capable of greatly improving the effect of removing microbes contained in water for eating and drinking, or discharged water.
    Type: Application
    Filed: July 2, 2002
    Publication date: November 21, 2002
    Inventors: Yasuhito Kondo, Yasuhito Shimizu, Masahiro Iseki
  • Computer controlling method, information apparatus, computer, and storage medium
    Publication number: 20020091920
    Abstract: The present invention provides a control method for notification of tampering of information apparatus, a computer, and/or a storage medium. It provides a technique for storing information related to a starting factor of the information apparatus and/or the computer, as well as notifying a certified user of the information apparatus and/or the computer of the information, thereby reporting and/or preventing the information apparatus and/or the computer from an illegitimate and/or illegal use. It enables a user to know that a computer or other information apparatus has been used and/or tampered by an uncertified user.
    Type: Application
    Filed: July 3, 2001
    Publication date: July 11, 2002
    Inventors: Ken Sasaki, Yasuhito Shimizu, Hidetoshi Mori
  • Spindle motor startup method and apparatus
    Patent number: 6218794
    Abstract: A spindle motor start up method wherein a torque balance between the stator and rotor is broken so as to avoid startup malfunctions, and thereby improve motor startup time in spindle motors prone to startup malfunctions, such as hard disk drive motors having a 4:3 ratio of the number of rotor magnetic poles to the number of stator slots.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: April 17, 2001
    Assignee: International Business Machines Corporation
    Inventors: Yasuhito Shimizu, Naoyuki Kagami, Akira Tokizono, Akihiro Ohyama