Patents by Inventor Naotake Nishizawa

Naotake Nishizawa 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: 5419280
    Abstract: A milking machine, which fastens teat cup liners R to teats B of a cow and repeats vacuum suction and quiescence for milking the cow, includes 1/f fluctuation signal generation module unit 2 for generating a 1/f fluctuation signal Ss based on the biorhythm of the cow and a control unit 3 for changing the control amount during milking, for instance, the number of pulses per unit time of a pulse control signal Sc for switching the suction and the quiescence, the duty ratio of the pulse control signal Sc, or the magnitude of the negative pressure corresponding to the 1/f fluctuation signal Ss.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: May 30, 1995
    Assignees: Milking Automation Technology Co., Ltd., Toshimitsu Musha, Seiji Horiuchi
    Inventors: Toshimitsu Musha, Seiji Horiuchi, Kiyotaka Matsuki, Naotake Nishizawa, Hiroyuki Iwasaki, Ryuji Maruyama, Takashi Sasaki
  • Patent number: 4669307
    Abstract: A device which measures the amount of milk which has been milked by a combination of a swinging member 2 and a tank 5; and a weight balance section, thereby enhancing accuracy in measurement as well as reducing in size the device. A measuring method for total milk amount by using the measuring device and by measuring the amount of milk which is filled in the tank 5 and the amount of milk which does not flow into the tank 5 at the time of discharging with the rotational cycles of the swinging member 2 to thereby achieve a higher precision.
    Type: Grant
    Filed: January 10, 1985
    Date of Patent: June 2, 1987
    Assignee: Orion Kikai Kabushiki Kaisha
    Inventors: Akio Wakui, Masahiro Usuda, Naotake Nishizawa