Patents Assigned to Shuyu Co., Ltd.
  • Patent number: 9097905
    Abstract: A thin and lightweight polarized lens has a laminated structure having a polarized film provided in a sandwiched manner. A glass lens is provided on a front side of the polarized film and a resin lens is provided on a back side of the polarized film, and the resin lens on the back side has a thickness of a range from 0.05 mm to 0.50 mm.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: August 4, 2015
    Assignee: SHUYU CO., LTD.
    Inventor: Yuichi Sakai
  • Publication number: 20140146379
    Abstract: A thin and lightweight polarized lens is disclosed. The polarized lens has a laminated structure having a polarized film provided in a sandwiched manner, a glass lens is provided on a front side and a resin lens is provided on a back side, and the resin lens on the back side has a thickness of a range from 0.05 mm to 0.50 mm.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 29, 2014
    Applicant: Shuyu Co., Ltd
    Inventor: Yuichi SAKAI
  • Patent number: 5818567
    Abstract: Disclosed is an improved frame structure for glasses using two counter joint pieces loosely coupled with a screw. One of these joint pieces is fixed to the rim projection, and the other joint piece is fixed to the temple, and these joint pieces are pulled toward each other under the resilient influence, which is caused by the spring plate of the joint piece on the temple side, thereby assuring the stable folding and unfolding of the temples on the front, still permitting each temple to move a short distance from the 90 degree-wide unfolding or linear-alignment with the rim projection like the "Spring Hinge".
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: October 6, 1998
    Assignee: Shuyu Co., Ltd.
    Inventor: Yuichi Sakai
  • Patent number: 5523806
    Abstract: To avoid excessive stressing of lenses and still facilitate the attaching and removing of the lens to the rim, a pair of eyeglasses has an improved rim lock member. The rim lock member has a two-parallel wire arrangement and a metal piece slidably movable thereon. The opposite ends of the loop hole of each rim are connected to the two parallel wire ends, and the space of the loop hole can be controlled by moving the metal piece on the two-parallel wire arrangement. Specifically the loop hole of each rim can be reduced by moving the metal piece toward the rim on the two-parallel wire arrangement until the circumferential length of time rim is shortened to wind tightly around the lens, thereby holding the lens fixedly. The bridge of the front of a pair of rimless eyeglasses has a similar parallel wire-and-metal assembly structure.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: June 4, 1996
    Assignee: Shuyu Co., Ltd.
    Inventor: Yuichi Sakai