Patents by Inventor Hitoshi Hirosawa

Hitoshi Hirosawa 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: 5066344
    Abstract: An endless belt comprising a belt main body prepared from a liquid castable elastomeric material, a reinforcing fabric providing over the surface of the main body, and a shock absorbing layer of elastomeric material formed between the main body and the fabric. The belt is in the form of a flat belt or a belt having teeth or projections on at least one side thereof, has improved bending resistance and is operable with diminished noise. The belt is prepareed by a process comprising the steps of forming a shock absorbing layer of elastomeric material over the surface of a reinforcing fabric, fitting the fabric to one of an inner die and an outer die with the layer facing the other die, and pouring or injecting a liquid castable elastomeric material into a space between the fabric and the other die for molding.
    Type: Grant
    Filed: February 13, 1990
    Date of Patent: November 19, 1991
    Assignee: Nitta Industries Corporation
    Inventors: Junichi Inami, Koozi Kikuta, Satoshi Nakane, Kazumi Fujito, Hitoshi Hirosawa