Patents by Inventor Masafumi Kamura

Masafumi Kamura 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).

  • Eyeglasses frame and method for assembling/manufacturing same, structure for fixing eyeglasses lenses
    Publication number: 20040114099
    Abstract: In an eyeglasses to which the invention is applied, a taper nut having a collar portion and a conical taper portion is fitted and attached to a hole having a circular truncated cone shape and pierced in an eyeglasses part. A hole for passing a male screw therethrough is formed in another eyeglasses part, and the eyeglasses parts are connected to each other by screwing the male screw inserted to the hole with a female screw provided in an inner portion of the taper nut. Further, continuous holes having a circular truncated cone shape are pierced in both the connected eyeglasses parts. It is possible to prevent both the eyeglasses parts from rotating with each other by fitting the taper nut to the hole, and both the parts are connected by engaging the male screw from a side in which the taper of the taper nut is reduced.
    Type: Application
    Filed: January 20, 2004
    Publication date: June 17, 2004
    Inventors: Takeji Shiokawa, Mitsuya Mikawa, Toshiaki Ichinose, Yasuhisa Sunai, Masafumi Kamura