Patents by Inventor Takeji Takagi

Takeji Takagi 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: 5098630
    Abstract: A solid-state image pickup device comprises a semiconductor chip, a package with a recess in which said semiconductor chip is fixed, and a transparent protective member for protecting an image pickup surface of the semiconductor chip and guiding a light image onto the image pickup surface. The transparent protective member includes a transparent resin layer for covering the image pickup surface and the upper surface of the package without forming a space therebetween, and an incident surface formed on the resin layer in parallel to the image pickup surface. A method manufactures a solid-state image pickup device having a construction described above by using a mold.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: March 24, 1992
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Hisao Ogiu, Takeji Takagi, Toshio Tanaka
  • Patent number: 4522866
    Abstract: An elastomer member with non-tacky surface treating layer is disclosed as well as a method of manufacturing same. An elastic adhesive layer is provided between a base elastomer member and a non-tacky surface treating layer which comprises hydrocarbon polymer, thereby improving the bonding strength of the surface treating layer and the resistance to organic solvent and crack resistance.
    Type: Grant
    Filed: March 3, 1982
    Date of Patent: June 11, 1985
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Masaji Nishikawa, Takeji Takagi, Masao Ueki
  • Patent number: 4361139
    Abstract: A scirroscope includes a pipe-shaped shell tube, a channel for feeding water or passing a treatment instrument therethrough, an optics tube in which an observation optical system is disposed, and a bundle of optical fibres which defines an illumination optical system. An elastic member covers at least partly at least one of the internal periphery of the shell tube and the external periphery of the channel, the optics tube and the fibre bundle.
    Type: Grant
    Filed: July 31, 1980
    Date of Patent: November 30, 1982
    Assignee: Olympus Optical Company Ltd.
    Inventor: Takeji Takagi
  • Patent number: 4347204
    Abstract: A flexible tube and a method of manufacturing same and provided. The flexible tube comprises a tubular body of a crystalline polymer material having a porous microstructure including a number of micro-nodes which are coupled together by fibrils. A synthetic resin material having gas tightness and stretchability is filled into the pores of the porous microstructure.
    Type: Grant
    Filed: July 17, 1980
    Date of Patent: August 31, 1982
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Takeji Takagi, Kiyokazu Hosaka
  • Patent number: 4327711
    Abstract: In a flexible tube for an endoscope including a metallic braided texture and a sheath tube covering the braided texture, both of which form a bendable portion and/or a flexible portion of an endoscope through which bundles of optical fibres, a flexure controlling wire or the like are passed, the internal peripheral surface of the sheath tube which covers the metallic braided texture is formed with grooves which retain an antifriction agent therein.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: May 4, 1982
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Takeji Takagi
  • Patent number: 4279245
    Abstract: A flexible tube and a method of manufacturing same are provided. The flexible tube comprises a tubular body of a crystalline polymer material having a porous microstructure including a number of micro-nodes which are coupled together by fibrils. A synthetic resin material having gas tightness and stretchability is filled into the pores of the porous microstructure.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: July 21, 1981
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Takeji Takagi, Kiyokazu Hosaka