Patents by Inventor Yoshiyuki Yajima

Yoshiyuki Yajima 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).

  • Communication terminal device
    Patent number: 12212143
    Abstract: A communication terminal device 100 comprises a first power generator 101, a second power generator 102 whose power generation principle is different from the first power generator, a sensor 103 for sensing information, a first communication unit 104 for sending the information using electric power supplied from the first power generator, a second communication unit 105 for sending the information using electric power supplied from the second power generator, the second communication unit uses a communication scheme different from the first communication unit.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: January 28, 2025
    Assignee: AMATERZ, INC.
    Inventors: Masakazu Yajima, Tamotsu Kiyakawauchi, Yoshiyuki Sekiguchi, Keita Otsuka, Teruko Nakajima
  • Data transmission rate control using a transmission control scheme suitable for subbands forming an entire band
    Patent number: 6226306
    Abstract: A data transmission rate control method in which a transmission control scheme used for data transmission over each channel is switched depending on a subband to which a proper transmission rate of the channel belongs, the subband being prepared by dividing an entire band by one or more boundaries. This makes it possible to solve a problem in conventional systems of variations in accuracy due to the bandwidth, and an increase in the circuit scale, when the a cell rate to be controlled ranges over wide bandwidth.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: May 1, 2001
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Yoshiyuki Yajima, Makoto Tanaka