Patents by Inventor Tuneo Kinoshita

Tuneo Kinoshita 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).

  • SAW resonator having a broad bandwidth
    Patent number: 5010269
    Abstract: A SAW resonator includes resonating SAW transducer units formed on a piezoelectric substrate and juxtaposed in a direction of propagation of acoustic waves, and a unidirectionally reflecting SAW transducer unit provided in each end of the juxtaposed resonating SAW transducer units on the substrate. Each resonating SAW transducer unit includes first and second SAW transducers connected in series and/or in parallel with each other.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: April 23, 1991
    Assignees: Hitachi, Ltd., Hitachi Denshi Kabushiki Kaisha, Hitachi Communication System, Inc.
    Inventors: Mitsutaka Hikita, Atsushi Sumioka, Toyoji Tabuchi, Kazuhito Kurosawa, Tuneo Kinoshita