Patents by Inventor Taisuke Oyanagi

Taisuke Oyanagi 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).

  • Method of manufacturing an optical element
    Patent number: 9193115
    Abstract: A method for manufacturing an optical element including: a surface including a plurality of grooves arranged concentrically. Each of the grooves includes a bottom surface with a predetermined width, a side surface, and a curved surface with a predetermined curvature radius. The bottom surface extends in a radius direction of the grooves. The curved surface connects the bottom surface and the side surface.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: November 24, 2015
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Akihiro Fujimoto, Taisuke Oyanagi
  • Metal Mold, Optical Device, Metal Mold for Forming Optical Device, and Process for Manufacturing the Same
    Publication number: 20100027122
    Abstract: A mold for forming an optical element includes: a surface including a plurality of grooves arranged concentrically. Each of the grooves includes a bottom surface with a predetermined width, a side surface, and a curved surface with a predetermined curvature radius. The bottom surface extends in a radius direction of the grooves. The curved surface connects the bottom surface and the side surface.
    Type: Application
    Filed: September 5, 2007
    Publication date: February 4, 2010
    Inventors: Akihiro Fujimoto, Taisuke Oyanagi
  • Cutting tool and cutting machine
    Patent number: 7396191
    Abstract: A cutting tool is constituted by plural faces and a tip portion structured with edges of the plural faces, wherein groove is formed on at least one of the plural faces. The groove is grid pattern and a dent portion is formed at some intersections of the grid pattern. Furthermore, a space is secured between one of ends of the groove and an edge constituted by a cutting face and a flank face. There is thus provided a cutting tool and a cutting machine capable of supplying cutting fluid to a tip of the tool or to a working point at the tip of it surely with simple structure.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: July 8, 2008
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Akihiro Fujimoto, Taisuke Oyanagi
  • Cutting tool and cutting machine
    Publication number: 20070006694
    Abstract: A cutting tool is constituted by plural faces and a tip portion structured with edges of the plural faces, wherein groove is formed on at least one of the plural faces. The groove is grid pattern and a dent portion is formed at some intersections of the grid pattern. Furthermore, a space is secured between one of ends of the groove and an edge constituted by a cutting face and a flank face. There is thus provided a cutting tool and a cutting machine capable of supplying cutting fluid to a tip of the tool or to a working point at the tip of it surely with simple structure.
    Type: Application
    Filed: July 6, 2006
    Publication date: January 11, 2007
    Inventors: Akihiro Fujimoto, Taisuke Oyanagi