Patents by Inventor Masahiro Sakata

Masahiro Sakata 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: 5248917
    Abstract: A flat fluorescent lamp comprises a flat glass container formed by a front glass panel, a rear glass panel and glass frames, a phosphor coating formed along the inner surface of the front glass panel, an anode disposed in the vicinity of the phosphor coating, a plurality of linear cathodes arranged in parallel to the anode and supported by support members, and at least one mesh electrode disposed between the anode and the cathodes The intensity of light of the lamp is adjusted by applying a pulse voltage to the mesh electrode.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: September 28, 1993
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Goro Hamagishi, Keiichi Kanatani, Shunichi Kishimoto, Katsumi Terada, Yasuo Funazo, Takashi Ikeda, Masahiro Sakata, Hiroyuki Yagi
  • Patent number: 4896151
    Abstract: In a simultaneous communication as in a POS system in which the same data including a multiplicity of data blocks is transmitted from a controller to a multiplicity of terminals all at once, the controller transmits all of the data blocks to the terminals without receiving any acknowledgement from each of the terminals in the course of data transmission. Each time the data block is received, the terminals hold information concerning the acknowledgement of the data block. After the termination of transmission of the whole of the data, the controller receives the acknowledgement information from each terminal into a management table. Based on the contents of the mangement table, the controller retransmits the data to a terminal(s) indicative of a negative acknowledgement in a similar manner to the above-mentioned data transmission or while taking acknowledgement for each data block.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: January 23, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Shoubu Kuranami, Masahiro Sakata