Patents by Inventor Satoru Masunaga

Satoru Masunaga 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: 8894199
    Abstract: A pair of spectacles is provided, wherein a temple main body includes a plate spring section formed to a side of the front frame; and a highly rigid section formed to a rear side of the plate spring section with the ear suspension section inclusive and having bending rigidity higher than that of the plate spring section while the plate spring section is formed in such a manner that its vertical width is rendered constant or tapered with narrowed by a predetermined ratio from its frontal side to its rear side as well as such that a thickness of the plate spring section satisfies the predetermined equation in relation with vertical widths of the plate spring section, positions in a longitudinal direction thereof and an abutment position with the lateral side of the head at the highly rigid section.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: November 25, 2014
    Assignee: Masunaga Optical Mfg. Co., Ltd.
    Inventor: Satoru Masunaga
  • Publication number: 20140218675
    Abstract: A pair of spectacles is provided, wherein a temple main body includes a plate spring section formed to a side of the front frame; and a highly rigid section formed to a rear side of the plate spring section with the ear suspension section inclusive and having bending rigidity higher than that of the plate spring section while the plate spring section is formed in such a manner that its vertical width is rendered constant or tapered with narrowed by a predetermined ratio from its frontal side to its rear side as well as such that a thickness of the plate spring section satisfies the predetermined equation in relation with vertical widths of the plate spring section, positions in a longitudinal direction thereof and an abutment position with the lateral side of the head at the highly rigid section.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 7, 2014
    Applicant: Masunaga Optical Mfg. Co., Ltd.
    Inventor: Satoru MASUNAGA
  • Patent number: 6793338
    Abstract: The present invention relates to the rimless spectacles with lens holding stability, the jointing condition between the respective lenses and the parts to be engaged thereto of which spectacles is very stable and which shape stability lasts for a long period of time. Such rimless spectacles is provided as not only being stable in the jointing condition between the respective lenses and the parts to be engaged thereto so as to keep its shape intact for a long period of time and simplifying the number of the assembly parts so as to be advantageous for the parts inventory control as well as the maintenance thereof, but also improving the production efficiency thereof.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: September 21, 2004
    Assignee: Masunaga Optical Mfg., Co., Ltd.
    Inventor: Satoru Masunaga
  • Publication number: 20030025871
    Abstract: The present invention relates to the rimless spectacles with lens holding stability, the jointing condition between the respective lenses and the parts to be engaged thereto of which spectacles is very stable and which shape stability lasts for a long period of time. Such rimless spectacles is provided as not only being stable in the jointing condition between the respective lenses and the parts to be engaged thereto so as to keep its shape intact for a long period of time and simplifying the number of the assembly parts so as to be advantageous for the parts inventory control as well as the maintenance thereof, but also improving the production efficiency thereof.
    Type: Application
    Filed: May 9, 2002
    Publication date: February 6, 2003
    Inventor: Satoru Masunaga
  • Patent number: 6398362
    Abstract: For the purpose of improving upon a clip-on attachment spectacles, an easy assembly therefor is provided herein, which assembly takes advantage of such merit of the prior clip-on attachment spectacles as the bridge portion thereof elastically contracts and extends so as to hand onto the frontal surface of the lenses of the spectacles in use, but which assembly structurally facilitates not only the extension and contraction of the bridge portion, but also the engagement between the bridge portion of the attachment spectacles and the glasses thereof as well as that between the hooks to be hung onto the lenses of the spectacles in use and the attachment glasses.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: June 4, 2002
    Assignee: Masunaga Optical Mfg., Co., Ltd.
    Inventor: Satoru Masunaga
  • Patent number: 6334679
    Abstract: A rimless eyeglass frame and rimless eyeglasses are disclosed, which are not affected by a face width of a wearer of eyeglasses or deformation during use, and does not require adjusting operation or even required, adjustment operation can be simple. The rimless eyeglasses have left and right lenses, a wire form frame member having opposite ends and extending toward left and right, and a pair of lens holding portions arranged at center portion of the frame member and holding the left and right lenses at positions in the vicinity of inner edge portions thereof. The frame member is in non-contact with upper edge portions of the left and right lenses.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: January 1, 2002
    Assignee: Masunaga Optical Mfg. Co., Ltd.
    Inventors: Satoru Masunaga, Setsuo Sanae
  • Patent number: 6293671
    Abstract: This invention relates to a method for working an auxiliary spectacle lens to be added to the spectacles in use, in more details, pertaining to a technique for efficiently working such lens that is light in weight and easy to be stably mounted in front of the lenses of the spectacles in use. That is to say, this method comprises the steps of opening a slit of a size on a fringe portion of an unworked auxiliary lens made of synthetic resin by means of a shearing tool and tightly mounting a joint piece with a pigeon-eyed hole opened therein or that provided with bent portions to be suspended onto the lenses of the spectacles in use into said slit. Accordingly, this invention enables even an optical shop of a small scale to deal with such working just by obtaining an unworked auxiliary lens made of synthetic resin, a joint piece and a shearing tool of a simple structure.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: September 25, 2001
    Assignee: Masunaga Optical Mfg. Co., Ltd.
    Inventor: Satoru Masunaga
  • Publication number: 20010007493
    Abstract: A rimless eyeglass frame and rimless eyeglasses are disclosed, which are not affected by a face width of a wearer of eyeglasses or deformation during use, and does not require adjusting operation or even required, adjustment operation can be simple. The rimless eyeglasses have left and right lenses, a wire form frame member having opposite ends and extending toward left and right, and a pair of lens holding portions arranged at center portion of the frame member and holding the left and right lenses at positions in the vicinity of inner edge portions thereof. The frame member is in non-contact with upper edge portions of the left and right lenses.
    Type: Application
    Filed: January 11, 2001
    Publication date: July 12, 2001
    Applicant: MASUNAGA OPTICAL MFG. CO., LTD.
    Inventors: Satoru Masunaga, Setsuo Sanae
  • Patent number: 6094957
    Abstract: A method is provided for bending a difficult-to-work metallic wire into a complicated profile. A predetermined length of the difficult-to-work metallic wire is prepared. Part of a portion thereof is held by a conductive clamping device. A first conductive pressure member is brought into contact with a first bending work position of the workpiece, while applying a predetermined pressing force thereto, electric power is supplied between the first member and the clamping device via the wire. Thereby, the wire is bent by a predetermined amount, which part of the wire thus bent by the predetermined amount is located on a conductive rod having a circular cross-section. A second conductive pressure member is brought into contact with a second bending work position of the wire, while applying a constant pressing force to the second member, electric power is supplied between the second member and the conductive rod via the wire.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: August 1, 2000
    Assignee: Masunaga Optical Mfg. Co., Ltd.
    Inventors: Satoru Masunaga, Kazuo Murata
  • Patent number: 5936700
    Abstract: In a mounting structure of detachable lenses to main spectacles according to the present invention, a detachable lens is provided on the surface side of each lens of main spectacles one over the other, a first magnetically-fitting piece is provided on one of the circumference of each lens and that of each detachable lens mounted to the corresponding lens one over the other, a second magnetically-fitting piece magnetically fitted to the corresponding first magnetically-fitting piece is provided on the other, guide projections are provided symmetrically on one of the circumference of each lens and that of each detachable lens mounted to the corresponding lens one over the other, and a guide hole allowing the corresponding guide projection to guide thereinto is provided in the other.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: August 10, 1999
    Assignee: Masunaga Optical Mfg. Co., Ltd.
    Inventor: Satoru Masunaga
  • Patent number: 5847801
    Abstract: This invention relates to a hinge structure in a frame of spectacles, wherein a bearing member having a pair of shaft insertion portions is mounted to a lens frame, a bifurcate member having shaft portions is fixed to an end of a temple to be in parallel with the temple, the shaft portions are respectively inserted into the shaft insertion portions such that the bifurcate member is horizontally movable, and a release prevention member is interposed inside the bifurcate member. Even if an external force is applied to a distal end of the bifurcate member, the bifurcate member is never released from the bearing portion, and smooth opening and closing functions of the temple may be guaranteed for a long period of time.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: December 8, 1998
    Assignee: Masunaga Optical Mfg. Co., Ltd.
    Inventor: Satoru Masunaga
  • Patent number: 5751394
    Abstract: The present invention relates to a temple frame mounting structure in spectacles. A notch portion is provided in a part of an annular side of a lens frame, and a pair of clamped pieces are fixed at positions of the lens frame between which the notch portion is positioned, and have distal ends extending apart from the lens frame in a direction of eyes. The clamped pieces are guided to the groove-like clamp pedestal having a pair of bearing portions on both sides, and are clamped to the clamp pedestal by a cam piece horizontally movably and pivotally mounted to the bearing portions of the clamp pedestal, thereby pivotally mounting the temple frame to an end of the cam piece.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: May 12, 1998
    Assignee: Masunaga Optical Mfg. Co., Ltd.
    Inventor: Satoru Masunaga
  • Patent number: 5585870
    Abstract: The technical issues of the present invention are to provide a pair of the rimless spectacles whose right-and-left lenses can be mechanically simply interlocked and held in a stable condition by means of three points supporting system with simple metallic holding parts and also which is easy to correct an error of locking holes bored in the lenses, and if necessary, further to provide a pair of the rimless spectacles which is fittable to those eyeglasses wearers whose right-and-left eyes are narrow in distance and whose face is wide in breadth and which is also adequate for P.D. (pupil distance) standard.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: December 17, 1996
    Assignee: Masunaga Optical Mfg. Co., Ltd.
    Inventor: Satoru Masunaga
  • Patent number: 5431506
    Abstract: This invention relates to the property of a bonded metal including a forming material of a nickel-titanium alloy and its method of manufacture. This bonded metal property is produced by forming a forged structure to achieve an incorporated integral body through the bonding of the nickel-titanium alloy material onto another material of nickel base alloy. The manufacturing method used to achieve this property involves heating both materials at the point to be bonded in an inert gas atomosphere. The materials are first heated to their melting point and in this state are fused together under high pressure. This forms the forged structure on the portion of the materials so treated.
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: July 11, 1995
    Assignees: Masunaga Menlo Park Co., Ltd., Furukawa Electric Co., Ltd.
    Inventor: Satoru Masunaga
  • Patent number: 5368661
    Abstract: Composite parts of Ni-Ti alloys joined to a different metal have a melt forged structure obtained through the reactive fusion of both metals, initiated by the fusion of at least one metal bordering on the joint interface and the application of pressure; a hot forged structure of Ni-Ti alloy obtained through softening the alloy at high temperature and applying pressure on the Ni-Ti alloy side of the joint; and a hot forged structure of the different metal obtained by softening the metal at high temperature and applying pressure on the different metal side of the joint.
    Type: Grant
    Filed: June 15, 1993
    Date of Patent: November 29, 1994
    Assignees: The Furukawa Electric Co., Ltd., Masunaga Menlo Park Co., Ltd.
    Inventors: Masayuki Nakamura, Kaisuke Shiroyama, Satoru Masunaga, Kazuo Murata
  • Patent number: 5358796
    Abstract: Composite parts of Ni-Ti alloys joined to a different metal have a melt forged structure obtained through the reactive fusion of both metals, initiated by the fusion of at least one metal bordering on the joint interface and the application of pressure; a hot forged structure of Ni-Ti alloy obtained through softening the alloy at high temperature and applying pressure on the Ni-Ti alloy side of the joint; and a hot forged structure of the different metal obtained by softening the metal at high temperature and applying pressure on the different metal side of the joint.
    Type: Grant
    Filed: June 15, 1993
    Date of Patent: October 25, 1994
    Assignees: The Furukawa Electric Co., Ltd., Masunaga Menlo Park Co., Ltd.
    Inventors: Masayuki Nakamura, Kaisuke Shiroyama, Satoru Masunaga, Kazuo Murata
  • Patent number: D438231
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: February 27, 2001
    Assignee: Masunaga Optical Mfg. Co., Ltd.
    Inventors: Satoru Masunaga, Setsuo Sanae
  • Patent number: D443290
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: June 5, 2001
    Assignee: Masunaga Optical Mfg. Co., Ltd.
    Inventors: Satoru Masunaga, Setsuo Sanae