Patents by Inventor Koichi Sekiya

Koichi Sekiya 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: 8084278
    Abstract: A wafer WF is mounted in a substrate holder, and the substrate holder is placed in a film forming furnace. The film forming furnace is evacuated by a vacuum pump through a gas discharge part to remove remaining oxygen as completely as possible. Then, a temperature in the film forming furnace is heated to a range of 800° C. to 950° C. under reduced pressure while an inert gas such as Ar or helium (He) is being introduced through a gas introduction part. When the temperature reaches this temperature range, an inflow of the inert gas is stopped. Vaporized ethanol is introduced as a source gas into the film forming furnace through the gas introduction part, thus forming a graphite film on an entire surface of the wafer WF.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: December 27, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yukio Uda, Koichi Sekiya, Kazuo Kobayashi, Yoichiro Tarui
  • Publication number: 20110223694
    Abstract: A wafer WF is mounted in a substrate holder, and the substrate holder is placed in a film forming furnace. The film forming furnace is evacuated by a vacuum pump through a gas discharge part to remove remaining oxygen as completely as possible. Then, a temperature in the film forming furnace is heated to a range of 800° C. to 950° C. under reduced pressure while an inert gas such as Ar or helium (He) is being introduced through a gas introduction part. When the temperature reaches this temperature range, an inflow of the inert gas is stopped. Vaporized ethanol is introduced as a source gas into the film forming furnace through the gas introduction part, thus forming a graphite film on an entire surface of the wafer WF.
    Type: Application
    Filed: December 7, 2010
    Publication date: September 15, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yukio UDA, Koichi SEKIYA, Kazuo KOBAYASHI, Yoichiro TARUI
  • Patent number: 5885920
    Abstract: A process for producing a catalyst carrier for an olefin polymerization comprising:(i) passing a mixture to be emulsified comprised of (A) a halogenated magnesium adduct and (B) a dispersion medium through an emulsifying apparatus comprised of (1) a conduit for passage of the mixture to be emulsified, (2) a vibrator element disposed in the conduit and vibrating in the axial direction of the conduit, and (3) a vibration device for giving the vibration movement to the vibrator element; and(ii) quenching the resultant mixture.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: March 23, 1999
    Assignee: Japan Polyolefins Co., Ltd.
    Inventors: Hirotoshi Takahashi, Yasushi Kuroda, Shinya Waki, Hisayoshi Yanagihara, Koichi Sekiya
  • Patent number: 5422075
    Abstract: The present invention relates to a chemical luminescence-detecting apparatus that is provided with a plurality of optical detectors different in sensitivity in the vicinity of a photometric cell. A ratio of outputs from the optical detectors based on intensity of luminescence is previously determined and stored. Signal processing can multiply an output of a low sensitivity optical detector by a factor determined by the stored ratio to measure the intensity of luminescence so that a conversion value corresponding to an equivalent output from a high sensitivity optical detector may be obtained when the output from the high sensitivity optical detector has become saturated.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: June 6, 1995
    Assignees: Sankyo Company, Limited, Horiba, Ltd.
    Inventors: Yukio Saito, Koichi Sekiya, Yoshihiro Sato, Takeshi Kohno, Hiroaki Takahasi, Kunio Terada, Takayuki Aoki
  • Patent number: 5255204
    Abstract: The present invention relates to a method of measuring a concentration of a substance in an enzyme immuno assay system comprised of two optical detectors and a method of calibrating the same. A calibration curve is prepared by the use of the standard samples having known concentrations to be memorized, the standard samples being measured by the two optical detectors, conversion values of outputs from two optical detectors being determined from the resulting measured values, and the calibration curve being corrected on the basis of the conversion values of outputs to establish a new one-piece continuous calibration curve.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: October 19, 1993
    Assignees: Sankyo Company, Ltd., Horiba, Ltd.
    Inventors: Yukio Saito, Koichi Sekiya, Yoshihiro Sato, Takeshi Kohno, Hiroaki Takahasi, Kenji Yamamoto
  • Patent number: 4279616
    Abstract: A method and apparatus is disclosed for measuring blood coagulation factor, operating on the principle wherein the clotting time (T) of a sample of blood to which a reagent has been added is measured; and then the measured clotting time (T) is converted into a quantity (A) in accordance with the equation: ##EQU1## where: Ao is an activation value amount taken on the assumption that an apparently negative or positive residual amount of coagulation factors, which are the object of measurement, exists in a diluted blood plasma solution prepared to obtain various values of activation, unit and concentration;An is the normal or standard activation value of normal blood plasma;B is a constant used in converting from clotting time (T) into activation value;Tn is the clotting time of said normal blood; andP and Q are logarithmic bases;In order to eliminate the influence caused by Ao and minimize the errors deriving from the conversion.
    Type: Grant
    Filed: August 29, 1979
    Date of Patent: July 21, 1981
    Assignee: Sankyo Company Limited
    Inventors: Yukio Saito, Koichi Sekiya, Masaaki Takahashi, Seigo Akiyama
  • Patent number: 4217107
    Abstract: A blood clotting end point detector which includes means for monitoring an electrical signal representing the value A of one or more optical properties of a blood plasma sample to which a coagulating agent has been added, means for deriving the first and the second differentials with respect to time of the value A, means for detecting the moment Ta when the second differential changes from negative to positive or becomes positive, means for detecting the moment Tb when the second differential next changes from positive to negative, means for deriving the difference (R) between the tangent to the curve A at the moment Ta and the curve A, means for determining whether the difference (R) or the integral, with respect to time from moment Ta to moment Tb, of the difference (R) exceeds a predetermined threshold value, in which case moment Tb is taken as the true clotting end point.
    Type: Grant
    Filed: September 22, 1978
    Date of Patent: August 12, 1980
    Assignee: Sankyo Company Ltd.
    Inventors: Yukio Saito, Koichi Sekiya, Masaaki Takahashi