Patents by Inventor Harumi Aoyama

Harumi Aoyama 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).

  • Prepaid system, method thereof, and communication terminal
    Patent number: 6999750
    Abstract: There is provided a prepaid system able to reduce inconvenience caused by issuing and using a large number of prepaid cards. A communication terminal purchases a prepaid number related to a predetermined amount of money by using a deposit of the communication terminal made in advance and managed by the prepaid system, and pays for its communication charge using the predetermined amount of money related to the prepaid number. Or, the communication terminal uses a prepaid count set in advance and managed by the prepaid system to pay for its communication charge before or after the communication made by the communication terminal. Or, the communication terminal assigns a part of its prepaid count managed by the prepaid system to other communication terminals to pay for their communication charges before or after the communications made by the other communication terminals.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: February 14, 2006
    Assignee: NTT DoCoMo, Inc.
    Inventors: Harumi Aoyama, Norikazu Umeda, Makoto Jinguuji
  • Prepaid system, method thereof, and communication terminal
    Publication number: 20030199265
    Abstract: There is provided a prepaid system able to reduce inconvenience caused by issuing and using a large number of prepaid cards. A communication terminal purchases a prepaid number related to a predetermined amount of money by using a deposit of the communication terminal made in advance and managed by the prepaid system, and pays for its communication charge using the predetermined amount of money related to the prepaid number. Or, the communication terminal uses a prepaid count set in advance and managed by the prepaid system to pay for its communication charge before or after the communication made by the communication terminal. Or, the communication terminal assigns a part of its prepaid count managed by the prepaid system to other communication terminals to pay for their communication charges before or after the communications made by the other communication terminals.
    Type: Application
    Filed: April 22, 2003
    Publication date: October 23, 2003
    Applicant: NTT DoCoMo,Inc
    Inventors: Harumi Aoyama, Norikazu Umeda, Makoto Jinguuji