Patents by Inventor Sigemasa Kusabiraki

Sigemasa Kusabiraki 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).

  • Terminal for a piezoelectric device
    Patent number: 5883458
    Abstract: A terminal for a piezoelectric device has a first contact portion and a second contact portion which are preferably formed as separate metallic elements. Each contact portion has a protrusion disposed thereon. A lubricant is located between the first contact portion and the second contact portion. The lubricant contains a hydrophilic group tending to form a hydrogen bond with a metal element and a lipophilic group extending in a straight chain from any such hydrogen bond and having a length at least several times that of the hydrophilic group. The lipophilic group has a molecular structure which urges away from the metallic surfaces of the contact portions.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: March 16, 1999
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Manabu Sumita, Sigemasa Kusabiraki, Isao Ikeda
  • Terminal for a piezoelectric device
    Patent number: 5770915
    Abstract: A terminal for a piezoelectric device has a base contact portion and a bent contact portion which are preferably formed by folding a metallic material. Each contact portion has a protrusion disposed thereon. A lubricant is located between the base contact portion and the bent contact portion. The lubricant contains a hydrophilic group tending to form a hydrogen bond with a metal element and a lipophilic group extending in a straight chain from any such hydrogen bond and having a length at least several times that of the hydrophilic group. The lipophilic group has a molecular structure which urges away from the metallic surfaces of the contact portions.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: June 23, 1998
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Manabu Sumita, Sigemasa Kusabiraki, Isao Ikeda