Patents by Inventor Nobuo Saka

Nobuo Saka 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).

  • Versatile production system
    Patent number: 5434792
    Abstract: A versatile production system, to produce multiple kinds of products including small quantities of products, by supplying work order sheets to personnel in the line transmitted via a production management system, and by transmitting defective product data at each working process to a quality control system.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: July 18, 1995
    Assignee: Fujitsu Limited
    Inventors: Nobuo Saka, Junichi Oda, Yasuaki Ishiyama
  • Versatile production system and pallet used for the system
    Patent number: 5434790
    Abstract: A versatile production system in which a communication-memory unit is attached to a product, or to a pallet carrying the product, while the product is conveyed along the production line. The communication-memory unit communicates with a line host controller via line terminals located at production line assembling and testing sites in order to send information relating to the product from the communication-memory unit to the line host controller and to the communication-memory unit from the line host controller. Information can also be transferred from the communication-memory unit to the line terminals for output to a production worker and input by a production worker from a line terminal to the communication-memory unit. In this manner, the communication-memory unit contains manufacturing information relating to the product and this information is electronically updated at each production line site.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: July 18, 1995
    Assignee: PFU Limited
    Inventors: Nobuo Saka, Junichi Oda, Yasuaki Ishiyama, Kazumi Miyasaka, Katsunao Sasaki, Eiichi Terabayashi, Hiroyoshi Terashima
  • Versatile production system and method of operating same
    Patent number: 5396432
    Abstract: The present invention relates to a versatile production system and a method of operating same. The system generates a work order so as to improve production efficiency and minimize line balance loss. The system includes working places for assembling and testing various kinds of products and line terminals installed in the working places. A communication-memory unit is attached to a product or a pallet so as to match the flow of products and information. A line host controller stores files containing information related to work contents, operators, time changes, standard parts feeding sequence, components of a product and maintenance tool. The line host controller calculates and assigns work so as to reduce the inefficient use of time and outputs work orders via the line terminals. The system monitors parameters related to time control, quality conditions and the states of operators. The system rearranges work orders and stops the system if a critical fault occurs.
    Type: Grant
    Filed: March 4, 1993
    Date of Patent: March 7, 1995
    Assignee: PFU Limited
    Inventors: Nobuo Saka, Junichi Oda, Kazuyuki Kajihara, Yasuaki Ishiyama