Patents by Inventor Kazuaki Kitano
Kazuaki Kitano 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).
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Patent number: 12084355Abstract: The present disclosure is directed to a composite metal oxide particle, and method of producing the same, having an excellent lithium ion conductivity that may be produced at low cost. The present disclosure relates to a garnet-type composite metal oxide particle, containing Li, La, Zr and O; Ga and/or Al; and a halogen element, where a part of a Li site is substituted with the Ga and/or the Al, and at least a part of a particle surface is covered with a melt-solidified material. A ratio of an area covered with the melt-solidified material to a total area of the particle is preferably 10% or more, and the halogen element is preferably Cl.Type: GrantFiled: February 24, 2021Date of Patent: September 10, 2024Assignees: KANEKA CORPORATION, OSAKA UNIVERSITYInventors: Kazuaki Kanai, Shohei Kitano, Makio Naito
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Patent number: 5885979Abstract: N-containing, condensed heterocyclic compounds and salts thereof are disclosed which are useful for inhibiting squalene synthetase and fungal growth, and which are useful for treating or preventing hyperlipidemia. Also disclosed is a method for producing these compounds.Type: GrantFiled: May 7, 1997Date of Patent: March 23, 1999Assignee: Takeda Chemical Industries, Ltd.Inventors: Hidefumi Yukimasa, Ryuichi Tozawa, Masakuni Kori, Kazuaki Kitano, Yasuo Sugiyama
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Patent number: 5726306Abstract: N-containing, condensed heterocyclic compounds and salts thereof are disclosed which are useful for inhibiting squalene synthetase and fungal growth, and which are useful for treating or preventing hyperlipidemia. Also disclosed is a method for producing these compounds.Type: GrantFiled: November 9, 1994Date of Patent: March 10, 1998Assignee: Takeda Chemical Industries, Ltd.Inventors: Hidefumi Yukimasa, Ryuichi Tozawa, Masakuni Kori, Kazuaki Kitano, Yasuo Sugiyama
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Patent number: 5624917Abstract: There is provided a squalene inhibitory composition containing a 1,1-bisphosphonic acid compound, a lower alkyl ester thereof, or a salt thereof, which is useful for treating hypercholesterolemia. There are also provided novel compounds having squalene synthetase inhibitory activity and a pharmaceutical composition for treating hypercholesterolemia containing a 1,1-bisphosphonic compound, a lower alkyl ester thereof or a salt thereof.Type: GrantFiled: January 16, 1996Date of Patent: April 29, 1997Assignee: Takeda Chemical Industries, Ltd.Inventors: Kazuaki Kitano, Takashi Sohda, Ryuichi Tozawa, Hitoshi Ikeda, Tsuneo Oda
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Patent number: 5543322Abstract: There are disclosed cloning of an alkaliprotease secretion gene of a mold and a DNA fragment containing a part or all of the alkaliprotease gene. A plasmid into which the DNA fragment is integrated, a transformant obtained by using the plasmid and the production of a useful protein by using the transformant are also disclosed.Type: GrantFiled: August 12, 1994Date of Patent: August 6, 1996Assignee: Takeda Chemical Industries, Ltd.Inventors: Kazuaki Kitano, Shigeru Morita, Masato Kuriyama, Kazutaka Maejima
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Patent number: 5213980Abstract: Disclosed are (1) a hybridoma carrying a vector for expressing a fibroblast growth factor (FGF) protein gene; (2) a method for producing the hybridoma of (1) which comprises transforming a hybridoma with the vector for expressing the FGF protein gene; and (3) a method for producing a biologically active substance which comprises cultivating in a culture medium the hybridoma obtained by the method of (2) using a hybridoma producing a biologically active substance other than the FGF protein, producing the FGF protein and producing and accumulating the biologically active substance in a culture, and recovering the biologically active substance, whereby the biologically active substance can be efficiently produced and recovered using the serum-free medium, which is advantageous for industrial production and very useful for an improvement in the breeding of the hybridoma.Type: GrantFiled: May 29, 1991Date of Patent: May 25, 1993Assignee: Takeda Chemical Industries, Ltd.Inventors: Hidekazu Sawada, Keiji Iwamoto, Kazuaki Kitano
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Patent number: 5210029Abstract: The present invention provides an improvement in a method for producing physiologically active proteins by cultivating Escherichia coli having an expression vector which contains a structural gene for such proteins at the downstream end of the translational starting codon. The method comprises cultivating the Escherichia coli in a medium containing (1) an iron ion source, a manganese ion source or a mixture thereof and (2) a nitrogen source derived from natural origin. The advantage of this method is an increase in the yield of physiologically active proteins substantially free of methionine (corresponding to translational starting codon ATG) at the N-terminus.Type: GrantFiled: June 18, 1990Date of Patent: May 11, 1993Assignee: Takeda Chemical Industries, Ltd.Inventors: Kazuaki Kitano, Shigeru Fujimoto
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Patent number: 4935356Abstract: The present invention provides an improvement in a method for producing interleukin-2 by cultivating a transformant of Escherichia coli capable of producing interleukin-2 into a medium, which comprises inoculating said Escherichia coli into the medium of pH from about 4.8 to 6.0 and growing it while maintaining this pH range.By the method of the present invention, the interleukin-2 productivity is considerably improved.Type: GrantFiled: January 24, 1989Date of Patent: June 19, 1990Assignee: Takeda Chemical Industries, Ltd.Inventors: Kazuaki Kitano, Shigeru Fujimoto
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Patent number: 4656131Abstract: A method for producing high yields of interferons which comprises cultivating a microorganism carrying an expression vector with a structural gene of interferon inserted therein in a chemically defined medium containing L-glutamic acid and an iron ion source and preferably further containing an zinc ion source or zinc and copper ion sources, and recovering interferon from the culture.Type: GrantFiled: November 26, 1984Date of Patent: April 7, 1987Assignee: Takeda Chemical Industries, Ltd.Inventors: Kazuaki Kitano, Shigeru Fujimoto
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Patent number: 4521340Abstract: Novel antibiotic C-19393 E.sub.5, which is produced by cultivating a microorganism belonging to the genus Streptomyces, has strong antimicrobial activity against gram-positive and gram-negative bacteria and, thus, are useful as a bactericide or disinfectant.Type: GrantFiled: October 30, 1981Date of Patent: June 4, 1985Assignee: Takeda Chemical Industries, Ltd.Inventors: Setsuo Harada, Susumu Shinagawa, Kazuaki Kitano
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Patent number: 4229436Abstract: A novel Antibiotic G-6302 is produced by cultivating a microorganism belonging to the genus Pseudomonas and being capable of producing Antibiotic G-6302 in a culture medium to have Antibiotic G-6302 elaborated and accumulated in the cultured broth and recovering the antibiotic.Antibiotic G-6302 is useful as a germicide or disinfectant.Type: GrantFiled: December 15, 1978Date of Patent: October 21, 1980Assignee: Takeda Chemical Industries, Ltd.Inventors: Akira Imada, Kazuaki Kitano, Mitsuko Asai
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Patent number: 4070244Abstract: Ubiquinone-10 is produced by culturing a microorganism belonging to the genus Sporidiobolus or Oosporidium and capable of producing ubiquinone-10, causing the microorganism to accumulate ubiquinone-10 and recovering ubiquinone-10.Type: GrantFiled: February 25, 1977Date of Patent: January 24, 1978Assignee: Takeda Chemical Industries, Ltd.Inventors: Yoshio Nakao, Kazuaki Kitano, Isuke Imada, Hiroshi Morimoto
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Patent number: 3979260Abstract: Deacetoxycephalosporin C can be produced with advantage by fermentation of a microorganism which belongs to the genus Streptomyces, Cephalosporium, Emericellopsis, Paecilomyces, Anixiopsis, Arachnomyces or Spriroidium and is capable of producing deacetoxycephalosporin C. Deacetoxycephalosporin C is a useful antibiotic as such or can be used as a starting material for the production of other various cephalosporin antibiotics.Type: GrantFiled: June 14, 1974Date of Patent: September 7, 1976Assignee: Takeda Chemical Industries, Ltd.Inventors: Yoshio Nakao, Kazuaki Kitano, Kazuhiko Kintaka, Shigeru Suzuki, Kazuyoshi Katamoto, Kiyoshi Nara