Patents by Inventor Michitaka Sato

Michitaka 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: 9873923
    Abstract: A method of operating a blast furnace by blowing a pulverized coal at an amount of not less than 150 kg/t?p from tuyeres through a lance into a blast furnace, wherein when the operation is performed under a condition that lump coke charged from a furnace top has a strength defined in JIS K2151 (DI15015) of not more than 87%, the pulverized coal blown through the tuyere contains not more than 60 mass % as a weight ratio of coal having a particle size of not more than 74 ?m and has an average volatile matter of not more than 25 mass %, and a blast temperature blown through the tuyere is not higher than 1100° C., oxygen is simultaneously blown into the furnace with the blowing of the pulverized coals through the lance and a gas having an oxygen concentration of 60 vol %-97 vol % is used as a carrier gas for the blowing of the pulverized coal.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: January 23, 2018
    Assignee: JFE STEEL CORPORATION
    Inventors: Akinori Murao, Daiki Fujiwara, Shiro Watakabe, Michitaka Sato, Takashi Watanabe, Akio Shimomura
  • Publication number: 20160138120
    Abstract: A method of operating a blast furnace by blowing a pulverized coal at an amount of not less than 150 kg/t?p from tuyeres through a lance into a blast furnace, wherein when the operation is performed under a condition that lump coke charged from a furnace top has a strength defined in JIS K2151 (DI15015) of not more than 87%, the pulverized coal blown through the tuyere contains not more than 60 mass % as a weight ratio of coal having a particle size of not more than 74 ?m and has an average volatile matter of not more than 25 mass %, and a blast temperature blown through the tuyere is not higher than 1100° C., oxygen is simultaneously blown into the furnace with the blowing of the pulverized coals through the lance and a gas having an oxygen concentration of 60 vol %-97 vol % is used as a carrier gas for the blowing of the pulverized coal.
    Type: Application
    Filed: March 28, 2014
    Publication date: May 19, 2016
    Applicant: JFE STEEL CORPORATION
    Inventors: Akinori Murao, Daiki Fujikara, Shiro Watakabe, Michitaka Sato, Takashi Watanabe, Akio Shimomura
  • Patent number: 7799775
    Abstract: This invention provides pyrimidine derivatives represented by a formula, in the formula, ring A stands for carbocyclic group or heterocyclic group, X1 stands for hydrogen, lower alkyl, amino, etc., X2 stands for hydrogen or lower alkyl, Y stands for a direct bond or sulfur or nitrogen, n stands for an integer of 0-4, and Ar stands for a group of the following formula, or a salt thereof, which concurrently exhibit 5-HT1A agonistic activity and 5-HT3 antagonistic activity and are useful for therapy and treatments of diseases such as IBS. The invention furthermore provides a therapeutic method of IBS, characterized by having 5-HT1A agonistic activity and 5-HT3 antagonistic activity work simultaneously and cooperatively in vivo, which comprises either administering 5-HT3 antagonistic agent which concurrently exhibits 5-HT1A agonistic activity, or administering 5-HT1A agonistic agent and 5-HT3 antagonistic agent simultaneously, in sequence or at an interval.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: September 21, 2010
    Assignee: ASKA Pharmaceutical Co., Ltd.
    Inventors: Michitaka Sato, Teruaki Matsui, Akira Asagarasu, Hiroyuki Hayashi, Sei-ichi Araki, Satoru Tamaoki, Nobuyuki Takahashi, Yukinao Yamauchi, Yoshiko Yamamoto, Norio Yamamoto, Chisato Ogawa
  • Publication number: 20070197551
    Abstract: This invention provides pyrimidine derivatives represented by a formula, in the formula, ring A stands for carbocyclic group or heterocyclic group, X1 stands for hydrogen, lower alkyl, amino, etc., X2 stands for hydrogen or lower alkyl, Y stands for a direct bond or sulfur or nitrogen, n stands for an integer of 0-4, and Ar stands for a group of the following formula, or a salt thereof, which concurrently exhibit 5-HT1A agonistic activity and 5-HT3 antagonistic activity and are useful for therapy and treatments of diseases such as IBS. The invention furthermore provides a therapeutic method of IBS, characterized by having 5-HT1A agonistic activity and 5-HT3 antagonistic activity work simultaneously and cooperatively in vivo, which comprises either administering 5-HT3 antagonistic agent which concurrently exhibits 5-HT1A agonistic activity, or administering 5-HT1A agonistic agent and 5-HT3 antagonistic agent simultaneously, in sequence or at an interval.
    Type: Application
    Filed: February 25, 2005
    Publication date: August 23, 2007
    Inventors: Michitaka Sato, Teruaki Matsui, Akira Asagarasu, Hiroyuki Hayashi, Sei-ichi Araki, Satoru Tamaoki, Nobuyuki Takahashi, Yukinao Yamauchi, Yoshiko Yamamoto, Norio Yamamoto, Chisato Ogawa
  • Patent number: 7087624
    Abstract: Substituted pyrazole compounds represented by formula (I), or salts thereof are disclosed, wherein R1 is —CH(OH)—CH(R4)-(A)n-Y, —CH2—CH(R4)-(A)n-Y, —CO-B1-A-Y or the like (wherein A is a lower alkylene; Y is an aryl group which may be substituted, for example, by halogen, or the like; R4 is a hydrogen atom or a lower alkyl group; B1 is —CH(R4)— or —N(R4)—; and n is 0 or 1); R2 is a hydrogen atom, a lower alkyl group which may be substituted by hydroxyl or the like, or an aralkyl group; R3 is a phenyl group which may be substituted by halogen or the like, or a pyridyl group; and Q is a pyridyl or quinolyl group.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: August 8, 2006
    Assignee: Teikoju Hormone Mfg. Co., Ltd.
    Inventors: Nobuyoshi Minami, Michitaka Sato, Koichi Hasumi, Norio Yamamoto, Katsuyuki Keino, Teruaki Matsui, Arihiro Kanada, Shuji Ohta, Takahisa Saito, Shuichiro Sato, Akira Asagarasu, Satoshi Doi, Motohiro Kobayashi, Jun Sato, Hajime Asano
  • Publication number: 20040087628
    Abstract: Substituted pyrazole compounds represented by formula (I), or salts thereof are disclosed, wherein R1 is —CH(OH)—CH(R4)-(A)n —Y, —CH2 —CH(R4)-(A)n—Y, —CO—B1-A-Y or the like (wherein A is a lower alkylene; Y is an aryl group which may be substituted, for example, by halogen, or the like; R4 is a hydrogen atom or a lower alkyl group; B1 is —CH(R4)— or —N(R4)—; and n is 0 or 1); R2 is a hydrogen atom, a lower alkyl group which may be substituted by hydroxyl or the like, or an aralkyl group; R3 is a phenyl group which may be substituted by halogen or the like, or a pyridyl group; and Q is a pyridyl or quinolyl group. These substituted pyrazole compounds or their salts have an excellent p38MAP kinase inhibiting effect and are hence useful in the prevention or treatment of tumor necrosis factor &agr;-related diseases, interleukin 1-related diseases, interleukin 6-related diseases or cyclooxygenase II-related diseases.
    Type: Application
    Filed: October 27, 2003
    Publication date: May 6, 2004
    Inventors: Nobuyoshi Minami, Michitaka Sato, Koichi Hasumi, Norio Yamamoto, Katsuyuki Keino, Teruaki Matsui, Arihiro Kanada, Shuji Ohta, Takahisa Saito, Shuichiro Sato, Akira Asagarasu, Satoshi Doi, Motohiro Kobayashi, Jun Sato, Hajime Asano
  • Patent number: 6667325
    Abstract: Substituted pyrazole compounds represented by formula (I), or salts thereof are disclosed, wherein R1 is —CH(OH)—CH(R4)—(A)n—Y, —CH2—CH(R4)—(A)n—Y, —CO—B1—A—Y or the like (wherein A is a lower alkylene; Y is an aryl group which may be substituted, for example, by halogen, or the like; R4 is a hydrogen atom or a lower alkyl group; B1 is —CH(R4)— or —N(R4)—; and n is 0 or 1); R2 is a hydrogen atom, a lower alkyl group which may be substituted by hydroxyl or the like, or an aralkyl group; R3 is a phenyl group which may be substituted by halogen or the like, or a pyridyl group; and Q is a pyridyl or quinolyl group. These substituted pyrazole compounds or their salts have an excellent p38MAP kinase inhibiting effect and are hence useful in the prevention or treatment of tumor necrosis factor &agr;-related diseases, interleukin 1-related diseases, interleukin 6-related diseases or cyclooxygenase II-related diseases.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: December 23, 2003
    Assignee: Teikoku Hormone Mfg. Co., Ltd.
    Inventors: Nobuyoshi Minami, Michitaka Sato, Koichi Hasumi, Norio Yamamoto, Katsuyuki Keino, Teruaki Matsui, Arihiro Kanada, Shuji Ohta, Takahisa Saito, Shuichiro Sato, Akira Asagarasu, Satoshi Doi, Motohiro Kobayashi, Jun Sato, Hajime Asano
  • Patent number: 6511997
    Abstract: Aminopyrazole derivatives represented by formula (I), or salts thereof, wherein X1 and X2 are each a hydrogen atom or a halogen atom, or X1 and X2 may be united together to form a lower alkylenedioxy group, Q is a pyridyl group or a quinolyl group, R1 is a hydrogen atom, a substituted or unsubstituted lower alkyl or aryl group, R2 is a hydrogen atom, a lower alkyl group, or an aralkyl group, and R3 represents a hydrogen atom, an organic sulfonyl group, or —C(═Y)—R4 in which R4 is a hydrogen atom or an organic residue and Y is an oxygen or sulfur atom, provided that, when R3 is a hydrogen atom, R1 is a group other than a hydrogen atom and R2 is a hydrogen atom. These amimopyrazole derivatives or their salts have excellent p38MAP kinase inhibiting activities and are hence useful in the prevention or treatment of diseases associated with tumor necrosis sis factor &agr;, interleukin 1, interleukin 6 or cyclooxygenase II.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: January 28, 2003
    Assignee: Teikoku Hormone Mfg. Co., Ltd.
    Inventors: Nobuyoshi Minami, Michitaka Sato, Koichi Hasumi, Norio Yamamoto, Katsuyuki Keino, Teruaki Matsui, Arihiro Kanada, Shuji Ohta, Takahisa Saito, Shuichiro Sato, Akira Asagarasu, Satoshi Doi, Motohiro Kobayashi, Jun Sato, Hajime Asano
  • Patent number: 6230634
    Abstract: A method of blowing a synthetic resin material into a furnace comprising preparing a synthetic resin material having an average specific surface area of at least 50 m2/kg; and blowing the synthetic resin material from tuyeres of a shaft furnace for ironmaking.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: May 15, 2001
    Assignee: NKK Corporation
    Inventors: Iwao Okochi, Mitsuhiro Fujii, Minoru Asanuma, Tatsuro Ariyama, Michitaka Sato, Ryota Murai, Yukihiko Asakawa, Koichi Tomioka, Hiroki Ishiguro, Yutuka Yamada, Kazumasa Wakimoto
  • Patent number: 5992335
    Abstract: A method for blowing a synthetic resin material into a furnace which comprises processing film-shaped synthetic resins into a first granular resin material; crushing non-film-shaped synthetic resins into a second granular resin material; pneumatically feeding the first granular resin material and the second granular resin material to a furnace; and blowing the first and second granular resin material into the furnace.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: November 30, 1999
    Assignee: NKK Corporation
    Inventors: Hiromi Nakamura, Iwao Okochi, Mitsuhiro Fujii, Atsushi Yamaguchi, Minoru Asanuma, Tatsuro Ariyama, Michitaka Sato, Ryota Murai, Tsuneo Nagaoka, Tetsuo Akashi, Kenichi Tezuka, Yukihiko Asakawa, Koichi Tomioka, Hiroki Ishiguro, Yutuka Yamada, Kazumasa Wakimoto, Hideaki Tsukiji
  • Patent number: 5250242
    Abstract: A method of producing a ceramic sintered body having a ceramic membrane which comprises a process of applying a precursor capable of converting into a ceramic membrane having a new function through heating onto at least a portion of a ceramic porous body to impart said function of the surface of the ceramic porous body, a process of applying a precursor capable of converting into a gas-impermeable membrane through heating over the whole surface of the porous body, a process of forming the gas-impermeable membrane by heating, a process of conducting hot isostatic pressing to the porous body, and a process of removing said gas-impermeable membrane. Ceramic sintered bodies having a dense ceramic membrane on the surface can be produced efficiently in very short processes.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: October 5, 1993
    Assignee: NKK Corporation
    Inventors: Hiroaki Nishio, Keiji Watanabe, Michitaka Sato
  • Patent number: 5114749
    Abstract: A method for manufacturing carbon material having good resistance to oxidation, comprising coating carbon material, which is a sintered body or a porous body, with an inorganic polysilazane; heating the carbon material coated with the inorganic polysilazane in an inert atmosphere to form amorphous silicon nitride on the surface of the carbon material; and reheating the heated carbon material in a non-nitriding and non-oxidizing atmosphere, the amorphous silicon nitride being decomposed and silicon carbide being formed on the surface of the carbon material; the reheating being conducted at a temperature of 1300.degree. C. to 1900.degree. C. and the non-nitriding and non-oxidizing atmosphere having a partial pressure of nitrogen determined with reference to a graph wherein the abscissa is a temperature in .degree.C. and the ordinate is partial pressure of nitrogen in atmospheres, the partial pressure being defined within an area under a line connecting a first point corresponding to 1300.degree. C. and 0.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: May 19, 1992
    Assignee: NKK Corporation
    Inventors: Hiroaki Nishio, Keiji Watanabe, Michitaka Sato
  • Patent number: 5091222
    Abstract: A method for forming a ceramic film comprises the steps of boiling a solution containing ceramics, dipping a base material into the solution, taking the base material out of the solution and drying the base material taken out of the solution in the presence of vapor of said boiling solution. The solution is a solution, in which ceramics is dispersed or dissolved. The solution is a solution, in which a precursor of ceramics is dispersed or dissolved.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: February 25, 1992
    Assignee: NKK Corporation
    Inventors: Hiroaki Nishio, Michitaka Sato, Keiji Watanabe
  • Patent number: 5073330
    Abstract: A method of molding polysilazane which includes heating a liquid sheet composed of liquid polysilazane alone or containing not more than 30 wt. % of a ceramic powder or a ceramic precursor to form a highly viscous sheet having a viscosity coefficient of 10.sup.4 to 10.sup.6 poise, fitting the highly viscous sheet to a forming mold, and heating to set the sheet. According to the method of the invention, molded bodies are easily obtained which have relatively uniform thickness, and are excellent in transferability, homogeneous and show less defects.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: December 17, 1991
    Assignee: NKK Corporation
    Inventors: Hiroaki Nishio, Keiji Watanabe, Michitaka Sato
  • Patent number: 5066438
    Abstract: A method of producing a silicon nitride sintered body which comprises using an amorphous Si.sub.3 N.sub.4 powder having a mean particle size of 5 to 50 nm, a nitrogen content of 30 to 39 wt. %, an oxygen content of 1 to 10 wt. %, the sum of the nitrogen content and the oxygen content being 38 to 42 wt. % and an unavoidable impurities content of less than 500 ppm as the raw material to form a molded body, sealing the molded body in a capsule and treating it with HIP in the range of 1000.degree. to 1800.degree. C. and 1000 to 2000 atm until the density becomes 3.1 to 3.4 g/cm.sup.3. In the method of the invention, active surface energy of silicon nitride powder is utilized as the driving force for sintering due to using a super fine powder. The super fine powder improves sintering ability by uniform mixing. The sintering ability is further improved by substituting a suitable amount of the nitrogen in the silicon nitride with oxygen.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: November 19, 1991
    Assignee: NKK Corporation
    Inventors: Michitaka Sato, Hiroaki Nishio
  • Patent number: 5021213
    Abstract: In the method of invention, the formability is imparted to the slurry of a metal or ceramic powder by employing a porous mold and removing the dispersion medium through the evaporation or thermal decomposition thereof, or by using a silazane oil as the dispersion medium and curing it by heating. Since the phase change usually accompanying volume change does not occur in the dispersion medium, strain and deformation rarely occur in the molded body. As result, the sintered body obtained has high dimensional accuracy.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: June 4, 1991
    Assignee: NKK Corporation
    Inventors: Hiroaki Nishio, Akira Kato, Michitaka Sato, Keiji Watanabe
  • Patent number: 4983368
    Abstract: A method of producing a .beta.-sialon fine powder which comprises using a silane compound represented by the general formula of SiH.sub.x Cl.sub.4-x (0.ltoreq.x.ltoreq.4) as a Si source, aluminum chloride as an Al source and an ether represented by the general formula of ROR' (R,R'=C.sub.y H.sub.2y+1, 1.ltoreq.y.ltoreq.5) as an oxygen source respectively, dissolving them in an organic solvent capable of dissolving them to obtain a solution, introducing ammonia gas into the solution to produce a precipitates, and burning the precipitates in a nonoxidative atmosphere. In the .beta.-sialon fine powder obtained by the method of the invention, respective elements of Si, Al, O and N are uniformly distributed in a chemical viewpoint. A high density high strength sintered body can be produced even at a relatively low temperature by using the .beta.-sialon fine powder.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: January 8, 1991
    Assignee: NKK Corporation
    Inventors: Michitaka Sato, Keiji Watanabe, Hiroaki Nishio
  • Patent number: 4943403
    Abstract: There is disclosed a method for eliminating an organic dispersion medium from a molded product obtained by plasticizing-molding or casting-molding of metallic and/or ceramic powders wherein the elimination is by extraction by liquid carbon dioxide at a temperature not lower than -30.degree. C. and not higher than -31.1.degree. C. The method prevents nonuniform volumetric decrease of the molded product to be otherwise caused by the extraction of the organic dispersion medium, while also making it possible to completely eliminate the organic dispersion medium without causing residual strain or deformation in the molded product.
    Type: Grant
    Filed: June 10, 1986
    Date of Patent: July 24, 1990
    Assignee: Nippon Kokan Kabushiki Kaisha
    Inventors: Tsuneo Miyashita, Hiroaki Nishio, Michitaka Sato
  • Patent number: 4910216
    Abstract: A compound of the formula ##STR1## wherein R.sub.1 is a hydrogen atom or a methoxy group, and A is a C.sub.1 -C.sub.4 alkylene group, or a pharmaceutically acceptable salt thereof. This compound is useful as a medicine, particularly as a lipoxygenase inhibitor for polyunsaturated fatty acids.
    Type: Grant
    Filed: February 25, 1988
    Date of Patent: March 20, 1990
    Assignee: Teikoku Hormone Mfg. Co., Ltd.
    Inventors: Yasushi Suzuki, Yukio Hasegawa, Michitaka Sato, Morinobu Saito, Norio Yamamoto, Katsuhiko Miyasaka, Takashi Mikami, Katsuhiko Miyazawa
  • Patent number: 4909973
    Abstract: A method for refining powders comprising the steps of: (a) adding polytetrafluoroethylene powders to non-oxide ceramic powders to form a mixture by mixing; and (b) heating the mixture in non-oxidizing atmosphere to convert oxides existing on the surface of the non-oxide ceramic powders into gaseous fluorides, and removing gaseous fluorides. The fluororesin is a polytetrafluoroethylene resin. The heating temperature in the non-oxidizing atmosphere is 500.degree. C. to 1300.degree. C.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: March 20, 1990
    Assignee: Nippon Kokan Kabushiki Kaisha
    Inventors: Hiroaki Nishio, Michitaka Sato