Patents Represented by Law Firm Antonelli, Terry, Sout & Kraus
  • Engine control system
    Patent number: 5111405
    Abstract: In an engine control system of the type in which engine control data is calculated for each of a plurality of cylinders, rotation angular speeds of the crank shaft are sequentially detected as individual pistons of the plurality of cylinders take an identical, predetermined stroke position, for example, top speed position and rotation speed data and control data are calculated on the basis of the detected rotation angular speed.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: May 5, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Yuji Maeda, Yozo Nakamura, Kenichi Nakamura, Masami Nagano
  • Battery bracket for construction machine
    Patent number: D650740
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: December 20, 2011
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Masayuki Yunoue, Akira Noguchi, Hiroyuki Andoh