Patents by Inventor Mitsuhiro Oka

Mitsuhiro Oka 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: 5464100
    Abstract: A sorting apparatus for a solid waste sorting system has a first set of three belt conveyors, for conveying solid waste at a first speed, and a second set of three belt conveyors, each of the latter disposed with one end connected to the downstream end of a corresponding one of the first three belt conveyors, for conveying solid waste at a second speed which is greater than the first speed. The first three belt conveyors extend transversely into a feed-out path of a storage section in such a way that the conveyor lying successively furthest away from the storage section along the feed-out path is of successively longest upstream-end extension. The solid waste is sorted manually on the second set of three belt conveyors and is then supplied to a draft-sorting machine.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: November 7, 1995
    Assignee: Okasan Corporation
    Inventor: Mitsuhiro Oka