Patents by Inventor Tomoki Hamagami

Tomoki Hamagami 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).

  • Patent number: 8175982
    Abstract: Reinforcement learning is one of the intellectual operations applied to autonomously moving robots etc. It is a system having excellent sides, for example, enabling operation in unknown environments. However, it has the basic problem called the “incomplete perception problem”. A variety of solution has been proposed, but none has been decisive. The systems also become complex. A simple and effective method of solution has been desired. A complex value function defining a state-action value by a complex number is introduced. Time series information is introduced into a phase part of the complex number value. Due to this, the time series information is introduced into the value function without using a complex algorithm, so the incomplete perception problem is effectively solved by simple loading of the method.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: May 8, 2012
    Assignee: Nat'l University Corp. Yokohama Nat'l University
    Inventors: Tomoki Hamagami, Takesi Shibuya
  • Publication number: 20090234783
    Abstract: Reinforcement learning is one of the intellectual operations applied to autonomously moving robots etc. It is a system having excellent sides, for example, enabling operation in unknown environments. However, it has the basic problem called the “incomplete perception problem”. A variety of solution has been proposed, but none has been decisive. The systems also become complex. A simple and effective method of solution has been desired. A complex value function defining a state-action value by a complex number is introduced. Time series information is introduced into a phase part of the complex number value. Due to this, the time series information is introduced into the value function without using a complex algorithm, so the incomplete perception problem is effectively solved by simple loading of the method.
    Type: Application
    Filed: August 18, 2006
    Publication date: September 17, 2009
    Applicant: National University Corporation Yokohama National University
    Inventors: Tomoki Hamagami, Takeshi Shibuya