Patents by Inventor Masatoshi Matsuki

Masatoshi Matsuki 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).

  • Semiconductor device having parallel overlapping main current terminals
    Patent number: 5751058
    Abstract: Main current terminals (31, 32) electrically coupled to main electrodes of IGBT elements (27) which are loaded on a power substrate (30) project from a side wall of a case (21) to the exterior. The main current terminals (31, 32), which are in the form of flat plates having the same plane contours in principal parts thereof, are arranged to be parallel to each other and overlap with each other. Thus, inductances of the main current terminals (31, 32) are suppressed. An insulating member (33) is interposed between the portions of the main current terminals (31, 32) outwardly projecting from the case (21), while outwardly extending from the plane contours of the main current terminals (31, 32). Therefore, a withstand voltage across these portions of the main current terminals (31, 32) is maintained at a high value.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: May 12, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Masatoshi Matsuki