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Juro Wada: Spectacles provided with a magnifier having an automatic focusing function. Watson Cole Grindle & Watson, September 12, 1989: US04865438 (26 worldwide citation)

Spectacles provided with a magnifier, in which magnifier elements are mounted on a body of spectacles, a distance to an object to be seen is measured, a movable lens encased in the magnifier element is controlled and driven forward or backward along an optical axis on the basis of the result of the ...


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Juro Wada, Toshinari Itaoka: Contrast composition for angiography. Juro Wada, Cushman Darby & Cushman, August 25, 1981: US04285928 (19 worldwide citation)

A contrast composition for angiography comprising an emulsion containing an organic iodine compound as X-ray contrast agents and a perfluorocarbon compound having oxygen carrying ability.


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