Patents by Inventor Shinjirou Machida

Shinjirou Machida 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).

  • Optical dressing method, machining device based on this method, grindstone and polishing cloth
    Patent number: 6126523
    Abstract: A photo-reactive grinding wheel 1 is irradiated with light by a light irradiation device 2 which is provided opposite to the grinding wheel, to bring about a chemical reaction and change in property, and dissolved/removed by a solution 4. Simultaneously, a workpiece 5 is processed by the photo-reactive grinding wheel 1. Thus, processing can be performed without causing clogging in the grinding wheel of a resin bond containing fine abrasive grains, high-grade surface roughness can be realized, and processing efficiency is relatively high. The controllability of the dressing is excellent, automation of dressing and in-process dressing can also be realized, a system which contains no metal ion in the whole processing can be designed, an expensive device is not required, and handling is easy.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: October 3, 2000
    Assignee: The Institute of Physical and Chemical Research
    Inventors: Sei Moriyasu, Hitoshi Ohmori, Takeo Nakagawa, Kazuyuki Horie, Shinjirou Machida, Takashi Yamashita