Patents by Inventor Kouki Doi

Kouki Doi 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).

  • Cane and Cylindrical Body
    Publication number: 20140041702
    Abstract: Provided is a cane that has a sufficient impact-resistant strength; and is excellent in safety, durability and repairability and also lightweight but has a high stiffness. Such a cane has a shaft (4) and a grip, the shaft (4) comprising a high-strength-organic-fiber-reinforced-resin layer (31) and a carbon-fiber-reinforced-resin layer (32), the high-strength-organic-fiber-reinforced-resin layer (31) being integrally laminated onto each of the outside and inside surfaces of the carbon-fiber-reinforced-resin layer (32), the shaft (4) comprising a glass-fiber-reinforced-resin layer (33a) on the inner side of the innermost high-strength-organic-fiber-reinforced-resin layer (31a), the shaft (4) comprising a glass-fiber-reinforced-resin layer (33b) on the outer side of the outermost high-strength-organic-fiber-reinforced-resin layer (31b).
    Type: Application
    Filed: October 20, 2011
    Publication date: February 13, 2014
    Applicant: KOSUGE & CO., LTD.
    Inventors: Tsutomu Yamamoto, Kazuhiko Kosuge, Akito Miyazaki, Kouki Doi