Patents by Inventor Masashi Kamiyanagi

Masashi Kamiyanagi 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).

  • Liquid consumption apparatus
    Patent number: 8662648
    Abstract: A liquid consumption apparatus includes a detection portion in which a light emitting portion and a light receiving portion are arranged, a liquid container that houses a liquid and in which a prism having a cavity is disposed, a carriage with respect to which the liquid container is attachable and detachable, and in which an opening is provided in a position that opposes the prism, and a light shielding portion disposed in the opening in the carriage. When a driving portion moves the carriage in a direction in which the light emitting portion and the light receiving portion are arranged, noise light produced by the prism bottom surface or cavity portion is suppressed, as a result of the light shielding portion blocking part of irradiated light.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: March 4, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Masashi Kamiyanagi, Yuichi Nishihara, Junpei Yoshida