Patents by Inventor Masayasu Teraoka

Masayasu Teraoka 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).

  • Pressure sensitive transducer with pressure sensitive layer including semi-conductive particles
    Patent number: 6121870
    Abstract: Pressure sensitive layers are disposed on respective resin films through electrodes to face each other, and include high conductivity flaky carbon particles and low conductivity amorphous-based carbon particles. The two kinds of carbon particles are bound together by a resin-system binder. Accordingly, when a pushing force is applied to the resin films, an average distance between the carbon particles is decreased to cause a tunnel conduction phenomenon, resulting in a decrease in conductive resistance between the electrodes. As a result, a pressure sensing property can be made gentle.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: September 19, 2000
    Assignees: Denso Corporation, Hokuriku Electric Industry Co., Ltd.
    Inventors: Katsuhiko Ariga, Masayasu Teraoka, Yoshimitsu Motoki, Ichiro Ishiyama
  • Tearable membrane switch with resinous bounded silver-palladium alloy contacts
    Patent number: 5973283
    Abstract: A membrane switch having a pair of flexible printed boards and a pair of contacts respectively disposed on said printed boards. The contacts are formed of powdered alloy of silver and palladium bounded by resinous material, and a conductive layer of silver powder is disposed between the flexible printed board and the contact. Preferably, the powdered alloy contains 50-97 weight percent silver and palladium in the remainder of weight percent.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: October 26, 1999
    Assignees: Denso Corporation, Hokuriku Electric Industry Co., Ltd.
    Inventors: Katsuhiko Ariga, Masayasu Teraoka, Yoshimitsu Motoki, Tetsushi Yokoe, Ichirou Ishiyama
  • Connector apparatus used for a flexible cable
    Patent number: 5389002
    Abstract: A cable connector apparatus comprises a case, defining first (6) and second compartments (10) therein; a rotary member (1) accommodated in the first compartment (6); a stationary member (3) accommodated in the second compartment (6); a flexible cable (7) having one end connected to the rotary member (1) and the other end connected to the stationary member (3), the flexible cable (7) being wound around both the rotary member (1) and stationary member (3) plural times so as to allow the rotary member (1) to turn on its axis several times; an auxiliary rotary member (2) disposed around and radially spaced from the stationary member (3), the auxiliary rotary member (2) having an engaging mechanism establishing engagement between the auxiliary rotary member (2) and the flexible cable (7); the second compartment (10) being separated into two spaces by the auxiliary rotary member (2), thereby dividing a flexible cable accommodated in the second compartment (10) into inner and outer portions; and an elastic force ass
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: February 14, 1995
    Assignee: Nippondenso Co., Ltd.
    Inventors: Kozo Matsuda, Hidenobu Kazita, Masayasu Teraoka