Patents by Inventor Masahi NAKAZATO

Masahi NAKAZATO 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).

  • Antenna device and matching circuit module for antenna device
    Patent number: 9236657
    Abstract: A low-frequency radiating element and a high-frequency radiating element are configured so as to respectively operate in a relatively low frequency band and a relatively high frequency band that are non-contiguous with each other. A matching circuit is inserted between a transmission/reception circuit and a branching point. A high-frequency variable reactance circuit is inserted between the branching point and the high-frequency radiating element. A low-frequency variable reactance circuit is inserted between the branching point and the low-frequency radiating element. The high-frequency variable reactance circuit and the low-frequency variable reactance circuit are configured such that their reactances can be adjusted independently of each other.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: January 12, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shoji Nagumo, Minoru Iwanaga, Masahi Nakazato, Tomohiro Nagai
  • ANTENNA DEVICE AND MATCHING CIRCUIT MODULE FOR ANTENNA DEVICE
    Publication number: 20140198009
    Abstract: A low-frequency radiating element and a high-frequency radiating element are configured so as to respectively operate in a relatively low frequency band and a relatively high frequency band that are non-contiguous with each other. A matching circuit is inserted between a transmission/reception circuit and a branching point. A high-frequency variable reactance circuit is inserted between the branching point and the high-frequency radiating element. A low-frequency variable reactance circuit is inserted between the branching point and the low-frequency radiating element. The high-frequency variable reactance circuit and the low-frequency variable reactance circuit are configured such that their reactances can be adjusted independently of each other.
    Type: Application
    Filed: January 8, 2014
    Publication date: July 17, 2014
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Shoji NAGUMO, Minoru IWANAGA, Masahi NAKAZATO, Tomohiro NAGAI