Patents by Inventor Iruru Matsunaga

Iruru Matsunaga 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).

  • Article feeding and discharging device
    Patent number: 6622894
    Abstract: A motor (17a, 17b) opens and closes a shutter turnably mounted so as to open and close a discharge port relevant to a hopper, and generates a torque against a load in a gravity direction of materials dropped from a material supply mechanism to the hopper. A shutter control portion (19a, 19b, . . . 19h) sets a hold current applied to the motor from the start of loading relevant to the shutter caused by the materials to be dropped to a predetermined period, to a first hold current value for applying to the shutter a torque sufficient to bear the shock during charge of the materials.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: September 23, 2003
    Assignee: Anritsu Corporation
    Inventors: Iruru Matsunaga, Kouichi Watanabe, Kinya Ishida
  • Article feeding and discharging device
    Publication number: 20020158080
    Abstract: A motor (17a, 17b) opens and closes a shutter turnably mounted so as to open and close a discharge port relevant to a hopper, and generates a torque against a load in a gravity direction of materials dropped from a material supply mechanism to the hopper. A shutter control portion (19a, 19b, . . . 19h) sets a hold current applied to the motor from the start of loading relevant to the shutter caused by the materials to be dropped to a predetermined period, to a first hold current value for applying to the shutter a torque sufficient to bear the shock during charge of the materials.
    Type: Application
    Filed: October 15, 2001
    Publication date: October 31, 2002
    Inventors: Iruru Matsunaga, Kouichi Watanabe, Kinya Ishida