Patents by Inventor Noboru Sato

Noboru Sato 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: 4794113
    Abstract: Imidazolyl phenoxy derivatives are provided as well as pharmaceutical compositions containing such derivatives. The compositions useful for lowering lipid activity in a subject and accordingly useful for reducing cholesterol and triglycerides.
    Type: Grant
    Filed: January 2, 1987
    Date of Patent: December 27, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Tadao Kojima, Shunji Kageyama, Minoru Okada, Isao Ohata, Noboru Sato
  • Patent number: 4772303
    Abstract: A process for fabricating an optical fiber by inner-lining a quartz tube with synthetic glass having a refractive index higher than the quartz tube and collapsing it while wire-drawing it via a wire-drawing furnace, comprising the steps of inner-lining the synthetic glass in the quartz tube so that the value of the inner diameter/the outer diameter of the quartz tube is 0.85 or less, sealing one end of the quartz tube to form a sealed end, then holding the quartz tube in a wire-drawing furnace, and wire-drawing it from the sealed end while holding the internal pressure of the quartz tube in negative pressure. Thus, the process prevents moisture from the exterior from mixing and allows the wire-drawing and collapsing steps to be performed stably and reliably.
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: September 20, 1988
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Tamotsu Kamiya, Yasuhiro Shibayama, Nobuhito Uchiyama, Noboru Sato
  • Patent number: 4727005
    Abstract: A magneto-optical recording medium is disclosed. The medium comprises a substrate and a magnetic layer formed thereon. The magnetic layer has a multi layered structure in which rare earth metal element layers and transition metal layers are alternately superposed with each other, with layer thickness of the order of an atomic layer. The layer thickness of the rare earth metal element is selected not less than 2 .ANG. but less than 6 .ANG..
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: February 23, 1988
    Assignee: Sony Corporation
    Inventor: Noboru Sato
  • Patent number: 4710434
    Abstract: An optomagnetic recording medium utilizing both rare earth metals and transition metals in the optomagnetic recording system. From 15 to 35 atomic % of the recording medium on the nonmagnetic base consists of one of the rare earth metals gadolinium (Gd), terbium (Tb) or dysprosium (Dy) with the balance being an alloyed mixture of iron (Fe), cobalt (Co) and germanium (Ge). The optomagnetic recording material of the present invention has an increased phase transition temperature without a rise in its Curie point, and provides satisfactory recording and erasing under temperature conditions up to near the Curie point.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: December 1, 1987
    Assignee: Sony Corporation
    Inventors: Noboru Sato, Kazutaka Habu, Sanae Abe
  • Patent number: 4690932
    Abstract: Novel coumarin compounds of the formula ##STR1## wherein R.sup.1 represents an imidazolyl group or a pyridyloxy group which may be substituted by lower alkyl group(s); R.sub.2 represents a hydrogen atom or a lower alkyl group; and m represents an integer of 1 to 6; and the salts thereof, which inhibit platelets aggregation.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: September 1, 1987
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Tadao Kojima, Shunji Kageyama, Minoru Okada, Isao Ohata, Noboru Sato
  • Patent number: 4670356
    Abstract: An improved magneto-optical recording medium and a method of making the same, the medium including a substrate base and a magneto-optical recording layer formed on the base and composed of a plurality of layers each of which contains a rare earth metal and a transition metal. The relative concentration ratio between the rare earth metal and the transition metal in the layers varies cyclically in the direction of the thickness of the magneto-optical recording layer. The recording medium is conveniently manufactured by simultaneously depositing the transition metal and the rare earth metal by co-sputtering the two metals on a base and providing relative movement between the base and the metal sources during co-sputtering to produce the multilayer recording structure.
    Type: Grant
    Filed: November 29, 1985
    Date of Patent: June 2, 1987
    Assignee: Sony Corporation
    Inventors: Noboru Sato, Tomiji Tanaka
  • Patent number: 4659611
    Abstract: A high thermal conductivity circuit substrate is provided comprising a sintered aluminum nitride ceramic substrate consisting essentially of one member selected from the group of yttrium, the rare earth metals and the alkali earth metals and an electrically conductive thick film paste for a conductive layer formed on the substrate.
    Type: Grant
    Filed: February 27, 1985
    Date of Patent: April 21, 1987
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuo Iwase, Kazuo Anzai, Kazuo Shinozaki, Akihiko Tsuge, Kazutaka Saitoh, Kiyoshi Iyogi, Noboru Sato, Mitsuo Kasori
  • Patent number: 4640755
    Abstract: A method for producing a magnetic medium which includes the steps of sputtering a magnetic material containing iron onto a substrate in an atmosphere of argon gas mixed with nitrogen gas and depositing a magnetic film on the substrate. The nitrogen is preferably present in an amount of 10 to 10000 ppm and serves to increase the saturation intensity of magnetization. The preferred version of the method consists in jointly sputtering a rare earth metal and an iron-cobalt.
    Type: Grant
    Filed: December 6, 1984
    Date of Patent: February 3, 1987
    Assignee: Sony Corporation
    Inventor: Noboru Sato
  • Patent number: 4633338
    Abstract: In a magneto-optical recording and reproducing apparatus using a magnetic recording medium having a perpendicular magnetization layer, a magnetization direction detecting apparatus for detecting the magnetization direction of its perpendicular magnetization layer is provided to correctly carry out the recording, reproducing and erasing. In this magnetization direction detecting apparatus, a rectilineally polarized laser light (14) is made incident on a perpendicular magnetization layer (11-2) of a magnetic recording medium magnetized in the same direction previously and a reflected light of this laser light from the perpendicular magnetization layer is detected through an analyzer (19) by a photo detecting element (21) to thereby detect the magnetization direction of the perpendicular magnetization layer by the output level from the photo detecting element.
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: December 30, 1986
    Assignee: Sony Corporation
    Inventors: Noboru Sato, Kenjirou Watanabe
  • Patent number: 4628187
    Abstract: A planar resistance heating element with positive temperature coefficient characteristics includes a resistive body layer formed of a crystalline resin containing electrically conductive particles and disposed between at least a pair of electrodes on an insulating substrate. A phenolic resin layer or a denatured phenolic resin layer with an elastomer resin added is disposed on the resistive body layer in covering relation to the entire surface thereof. An insulating protective film of resin may be disposed on the covering layer with an adhesive layer interposed therebetween, and an adhesive layer may be disposed on an outer surface of the insulating protective film for attachment to an object to be heated.
    Type: Grant
    Filed: February 8, 1985
    Date of Patent: December 9, 1986
    Assignee: Tokyo Cosmos Electric Co., Ltd.
    Inventors: Tsugio Sekiguchi, Noboru Sato, Hiroki Igarashi, Akiyoshi Ozawa, Iemi Nakazawa
  • Patent number: 4576699
    Abstract: An improved magneto-optical recording medium and a method of making the same, the medium including a substrate base and a magneto-optical recording layer formed on the base and composed of a plurality of layers each of which contains a rare earth metal and a transition metal. The relative concentration ratio between the rare earth metal and the transition metal in the layers varies cyclically in the direction of the thickness of the magneto-optical recording layer. The recording medium is conveniently manufactured by simultaneously depositing the transition metal and the rare earth metal by co-sputtering the two metals on a base and providing relative movement between the base and the metal sources during co-sputtering to produce the multilayer recording structure.
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: March 18, 1986
    Assignee: Sony Corporation
    Inventors: Noboru Sato, Tomiji Tanaka
  • Patent number: 4358780
    Abstract: An optical information record member having a substrate and an optical information carrier layer formed on the substrate is disclosed. The layer is composed of 40 to 80 atomic % of In and 60 to 20 atomic % of one of Se and S. The layer will be changed into a material which is insoluble to alkaline etchant upon the exposure to a light beam which is modulated in response to information signals to be recorded.
    Type: Grant
    Filed: July 10, 1981
    Date of Patent: November 9, 1982
    Assignee: Sony Corporation
    Inventor: Noboru Sato