Patents Represented by Attorney Keiichi Nishamura

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  • Stacked multijunction photovoltaic converters
    Patent number: 4338480
    Abstract: Solar cells with different bandgaps are stacked to form a multijunction photovoltaic converter with a high conversion efficiency. By stacking the cells mechanically rather than by growing them all at one time, the most convenient combination of materials may be selected for the cells. The stacking is completed by means of a glass sealing layer with moats containing inter-cell contacts which are bonded to the cells.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: July 6, 1982
    Assignee: Varian Associates, Inc.
    Inventors: George A. Antypas, Ronald L. Bell, Ronald L. Moon