Patents by Inventor Shigenobu Sobajima

Shigenobu Sobajima 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: 4234654
    Abstract: A heat wave-reflective or electrically conductive laminated structure composed of (A) a shaped solid substrate, (B) a transparent thin layer having a high refractive index in contact with said substrate (A), (C) a transparent heat wave-reflective layer of an electrically conductive metal in contact with said layer (B), and (D) optionally, a transparent thin layer having a high refractive index (D') in contact with said layer (C) and a transparent top layer (D") in contact with said transparent thin layer (D'); characterized in that said layer (C) is a layer composed of Ag and Au in which the amount of Au is 3 to 30% by weight based on the total weight of Ag and Au.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: November 18, 1980
    Assignee: Teijin Limited
    Inventors: Toshiaki Yatabe, Shigenobu Sobajima, Ikuto Sugiyama
  • Patent number: 4215168
    Abstract: A laminated multilayer sheet structure composed of (A) an opaque flexible sheet layer and (B) a flexible layer laminated to the surface of layer (A) and composed of a transparent thermic ray reflecting layer (B.sub.1) bonded to a transparent synthetic resin layer (B.sub.2). The sheet structure may be applied to the surface of a floor, wall, ceiling, partition or piece of furniture for indoor heat insulation.
    Type: Grant
    Filed: June 27, 1978
    Date of Patent: July 29, 1980
    Assignee: Teijin Limited
    Inventors: Utami Yonemura, Kiyoshi Chiba, Kunio Itoh, Yuji Mitani, Shigenobu Sobajima
  • Patent number: 4206615
    Abstract: An insulative multi-pane window structure of a refrigerator or freezer, said structure being interposable between a colder inside region and a warmer outside region of the refrigerator or freezer to permit vision therebetween and including at least a first pane having a surface exposed in use to humidity-bearing air in the warmer region and a second pane opposite to and spaced apart from the first pane, at least one of the first and second panes having an infrared reflecting coating attached in a specific manner; characterized in that said infrared reflective coating is a transparent, electrically conductive laminated structure composed of(A) a transparent solid substrate of a film-forming synthetic resin,(B) a thin layer of an oxide of titanium in contact with the substrate, said layer being derived from a layer of an organic titanium compound and containing organic residual moieties of the organic titanium compound,(C) a thin layer of an electrically conductive metal in contact with layer (B),(D) a thin lay
    Type: Grant
    Filed: September 27, 1978
    Date of Patent: June 10, 1980
    Assignee: Teijin Limited
    Inventors: Shigenobu Sobajima, Kiyoshi Chiba, Kunio Itoh, Utami Yonemura, Yuji Mitani
  • Patent number: 4166876
    Abstract: A transparent, electrically conductive laminated structure composed of(A) a transparent solid substrate,(B) a thin layer of an oxide of titanium being contacted with the said substrate (A),(c) a thin layer of an electrically conductive metal being contacted with the said layer (B),(d) a thin layer of an oxide of titanium being contacted with the said layer (C), and(E) optionally, a transparent top layer being contacted with the said layer (D)characterized in that(i) the said substrate (A) is a film-forming synthetic resin layer and(ii) the said layer (B) is a layer of an oxide of titanium derived from a layer of an organic titanium compound and contains organic residual moieties of the said organic titanium compound;And a process for the production of the same.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: September 4, 1979
    Assignee: Teijin Limited
    Inventors: Kiyoshi Chiba, Kunio Itoh, Yuji Mitani, Utami Yonemura, Shigenobu Sobajima
  • Patent number: 3967285
    Abstract: When a file having coated thereon an electrically conductive coating which is transparent in a highly oxidized state and non-transparent in a lowly oxidized state or in a reduced state, such as a coating of indium oxide, is heated electrically or by laser beams or oxidized and/or reduced by electrolytic reaction, images consisting of transparent and non-transparent areas are formed on the film. This can be utilized, for example, in a facsimile system.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: June 29, 1976
    Assignee: Teijin Limited
    Inventors: Shigenobu Sobajima, Hiroshi Okaniwa, Kiyoshi Chiba, Norio Takagi
  • Patent number: 3949409
    Abstract: When a file having coated thereon an electrically conductive coating which is transparent in a highly oxidized state and non-transparent in a lowly oxidized state or in a reduced state, such as a coating of indium oxide, is heated electrically or by laser beams or oxidized and/or reduced by electrolytic reaction, images consisting of transparent and non-transparent areas are formed on the film through an electrolytic layer on this film. This can be utilized, for example, in a facsimile system.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: April 6, 1976
    Assignee: Teijin Limited
    Inventors: Shigenobu Sobajima, Hiroshi Okaniwa, Hiyoshi Chiba, Norio Takagi
  • Patent number: 3947373
    Abstract: An electrically insulating powdery material with a volume resistivity of at least 1 .times. 10.sup.10 ohms-cm, which consists of a calcined product of a mixture of magnesium oxide with boron oxide and if desired, at least one of titanium, iron and chromium oxides and has a special novel structure wherein a core of magnesium oxide particles is surrounded by a sheath of a double oxide of the magnesium oxide and the boron oxide and if desired, the other metal oxide. This insulating powdery material is produced by calcining the above mixture under specified calcining conditions determined by a special temperature-time relation. A thermally conducting and electrically insulating resin composition especially having superior electrical properties under high temperature-high humidity conditions can be prepared using the above powdery material as a filler.
    Type: Grant
    Filed: August 12, 1974
    Date of Patent: March 30, 1976
    Assignee: Teijin Ltd.
    Inventors: Shigenobu Sobajima, Minoru Tamura, Yoichi Azuma, Kiyoshi Takekata