Patents by Inventor Masako Hacchow

Masako Hacchow 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).

  • Acoustic lens apparatus
    Patent number: 4967873
    Abstract: In an acoustic lens apparatus of this invention, a lens surface formed on an ultarsonic medium has a longitudinal wave lens portion constituted by a first aspherical surface at its central area, and a transverse wave lens portion constituted by a second aspherical surface at its peripheral area. The ultrasonic medium includes a piezoelectric transducer for generating ultrasonic waves at its surface opposite to the lens surface. The ultrasonic medium is arranged so that the lens surface opposes a sample, a coupler medium is filled in the gap between the surface and the sample.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: November 6, 1990
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Masako Hacchow, Takeshi Yamagishi, Fumio Uchino, Hiroshi Kajimura