Patents by Inventor Toshiya Yonezawa

Toshiya Yonezawa 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).

  • LASER ELEMENT AND ELECTRONIC DEVICE
    Publication number: 20240258767
    Abstract: To prevent a decrease in oscillation efficiency of laser light and a decrease in conversion efficiency of an optical wavelength due to thermal interference.
    Type: Application
    Filed: May 26, 2021
    Publication date: August 1, 2024
    Inventors: GEN YONEZAWA, TOSHIYA TAKAGISHI, MISAKI SHIMIZU
  • Vertical direct fired strip heating furnaces
    Patent number: 4165964
    Abstract: A vertical strip heating furnace includes at least two vertical direct fired heating chambers which are arranged in parallel which are communicated with each other. A separation chamber for housing inside furnace rolls at adjacent pairs of the chambers is provided in at least one location. The inside furnace rolls are separated from the main flow of the combustion gases and the temperature of the atmosphere in the chambers housing the inside furnace rolls is adjusted to within a fixed range. This strip heating furnace is capable of large capacity processing and is designed to save energy, and the inside furnace rolls are free from breakage due to thermal stress.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: August 28, 1979
    Assignee: Nippon Steel Corporation
    Inventors: Toshiya Yonezawa, Katsuyoshi Kobayashi