Patents by Inventor Yusuke Naganuma

Yusuke Naganuma 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).

  • Mobile communication terminal and method of controlling transmission characteristic thereof
    Patent number: 8086268
    Abstract: A mobile communication terminal includes: a signal transmission section having a predetermined default value for a transmission characteristic; an antenna to be used at least by the signal transmission section; a separate circuit section sharing ground with the signal transmission section and the antenna, and being different from the signal transmission section; a monitoring section monitoring a change in a use state of the terminal related to the separate circuit section; and when the signal transmission section transmits a signal using the antenna, if the monitoring section detects a change in the use state of the terminal, a transmission-characteristic adjusting section adjusting a transmission characteristic of the signal transmission section from the default value to a characteristic optimized for the use state.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: December 27, 2011
    Assignee: Sony Ericsson Mobile Communications Japan, Inc.
    Inventors: Yusuke Naganuma, Kazuki Nagashima, Go Sakamoto, Hiroyuki Matsumoto, Akihiro Bungo, Tatsuhiro Kodama, Tetsuo Umeda, Takahiro Sato, Yoshitaka Onuma
  • MOBILE COMMUNICATION TERMINAL AND METHOD OF CONTROLLING TRANSMISSION CHARACTERISTIC THEREOF
    Publication number: 20090253459
    Abstract: A mobile communication terminal includes: a signal transmission section having a predetermined default value for a transmission characteristic; an antenna to be used at least by the signal transmission section; a separate circuit section sharing ground with the signal transmission section and the antenna, and being different from the signal transmission section; a monitoring section monitoring a change in a use state of the terminal related to the separate circuit section; and when the signal transmission section transmits a signal using the antenna, if the monitoring section detects a change in the use state of the terminal, a transmission-characteristic adjusting section adjusting a transmission characteristic of the signal transmission section from the default value to a characteristic optimized for the use state.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 8, 2009
    Applicant: SONY ERICKSSON MOBILE COMMUNICATIONS JAPAN INC.
    Inventors: Yusuke Naganuma, Kazuki Nagashima, Go Sakamoto, Hiroyuki Matsumoto, Akihiro Bungo, Tatsuhiro Kodama, Tetsuo Umeda, Takahiro Sato, Yoshitaka Onuma