Patents by Inventor Koichi Nakazawa

Koichi Nakazawa 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).

  • Apparatus for processing rotary member
    Patent number: 5051677
    Abstract: An apparatus for processing a rotary member, comprising: a rotational drive for driving the rotary member so as to rotate the rotary member about an axis of the rotary member; an encoder for detecting a rotational position of the rotational drive device; a control device for controlling, in response to an output signal of the encoder, the rotational drive device so as to rotate the rotational drive device at a uniform speed; a processing device for processing an arbitrary position of the rotary member rotating at the uniform speed; a position detecting device for detecting, on the basis of the output signal of the encoder, a rotational position of the rotary member by raising a resolution of the output signal of the encoder; and a processing control device for controlling the processing device on the basis of the rotational position of the rotary member detected by the position detecting device.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: September 24, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Norio Okutani, Koichi Nakazawa