Patents by Inventor Tetsuya Oguma
Tetsuya Oguma 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: 7718209Abstract: A low common salt soy sauce, which has good flavor, significantly suppresses elevation of blood pressure, prevents cardiac hypertrophy, and is also available as special nutritious food, is obtained. 1.0% to 10.0% by weight of potassium chloride and 0.1% to 5.0% by weight of ?-aminobutyric acid are added to a reduced common salt soy sauce, so as to obtain a low common salt soy sauce of issue. Otherwise, a KCl-containing low common slat soy sauce is obtained by: (1) a common production method of soy sauce, in which a mixed solution consisting of KCl and common salt is used as mother water; (2) a method of subjecting a soy sauce obtained using saline solution as mother water to electrodialysis, a membrane treatment, or the like, so as to eliminate common salt from the above soy sauce, and then adding KCl thereto; or other methods.Type: GrantFiled: August 5, 2005Date of Patent: May 18, 2010Assignee: Kikkoman CorporationInventors: Jun Yamakoshi, Kohsuke Matsumoto, Makoto Saito, Hitomi Aota, Takeharu Nakahara, Satoshi Fukuda, Tetsuya Oguma, Norikazu Fujii
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Publication number: 20080057174Abstract: A low common salt soy sauce, which has good flavor, significantly suppresses elevation of blood pressure, prevents cardiac hypertrophy, and is also available as special nutritious food, is obtained. 1.0% to 10.0% by weight of potassium chloride and 0.1% to 5.0% by weight of ?-aminobutyric acid are added to a reduced common salt soy sauce, so as to obtain a low common salt soy sauce of issue. Otherwise, a KCl-containing low common salt soy sauce is obtained by: (1) a common production method of soy sauce, in which a mixed solution consisting of KCl and common salt is used as mother water; (2) a method of subjecting a soy sauce obtained using saline solution as mother water to electrodialysis, a membrane treatment, or the like, so as to eliminate common salt from the above soy sauce, and then adding KCl thereto; or other methods.Type: ApplicationFiled: August 5, 2005Publication date: March 6, 2008Applicant: Kikkoman CorporationInventors: Jun Yamakoshi, Kohsuke Matsumoto, Makoto Saito, Hitomi Aota, Takeharu Nakahara, Satoshi Fukuda, Tetsuya Oguma, Norikazu Fujii
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Patent number: 6881565Abstract: There are disclosed a protein having an amino acid sequence shown in SEQ ID NO:2, or a protein having a glutaminase activity in which one or more amino acids is/are deleted from, substituted by, inserted to or added to the amino acid sequence of the above protein; a gene containing DNA encoding the above protein or a gene which hybridizes with the a complementary sequence of DNA of the above gene under a stringent condition and encodes a protein having a glutaminase activity; a recombinant DNA containing the above gene; a transformant or a transductant containing the above recombinant DNA; and a process for producing glutaminase which comprises culturing the above transformant or the above transductant and collecting glutaminase from a culture medium.Type: GrantFiled: April 17, 2002Date of Patent: April 19, 2005Assignee: Kokkoman CorporationInventors: Kotaro Ito, Tetsuya Oguma, Yasuji Koyama
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Publication number: 20030124656Abstract: There are disclosed a protein having an amino acid sequence shown in SEQ ID NO:2, or a protein having a glutaminase activity in which one or more amino acids is/are deleted from, substituted by, inserted to or added to the amino acid sequence of the above protein; a gene containing DNA encoding the above protein or a gene which hybridizes with the a complementary sequence of DNA of the above gene under a stringent condition and encodes a protein having a glutaminase activity; a recombinant DNA containing the above gene; a transformant or a transductant containing the above recombinant DNA; and a process for producing glutaminase which comprises culturing the above transformant or the above transductant and collecting glutaminase from a culture medium.Type: ApplicationFiled: April 17, 2002Publication date: July 3, 2003Inventors: Kotaro Ito, Tetsuya Oguma, Yasuji Koyama
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Patent number: 6060597Abstract: A cyclic oligosaccharide or salts thereof comprising glucoses bound cyclically via .alpha.-1,6-linkages and having at least one S-oxo acid group bound, and ana gent for preventing or treating retroviral diseases which comprises said cyclic oligosaccharide or salts thereof as an active ingredient. The novel sulfated cyclic isomaltoligosaccharide inhibits infection of host cells with various retroviruses such as AIDS virus etc. so effectively that it has a significant preventive and therapeutic effect on diseases caused by retroviruses. Accordingly, said oligosaccharide can be utilized as an agent for preventing or treating retroviral diseases in pharmaceutical industry.Type: GrantFiled: July 30, 1998Date of Patent: May 9, 2000Assignees: Kikkoman Corporation, Noda Institute for Scientific ResearchInventors: Koichiro Tobe, Makoto Saito, Shoichi Tokutake, Satoshi Kitao, Tetsuya Oguma, Kahee Fujita
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Patent number: 5453369Abstract: The present invention relates to a novel cycloisomaltooligosaccharide selected from the group consisting of novel cycloisomaltoheptaose having a cyclic structure composed of 7 glucose residues in .alpha.-1,6 linkage, novel cycloisomaltooctaose having a cyclic structure composed of 8 glucose residues in .alpha.-1,6 linkage and novel cycloisomaltononaose having a cyclic structure composed of 9 glucose residues in .alpha.-1,6 linkage, novel cycloisomaltooligosaccharide synthase forming said oligosaccharides from dextran, and a process for producing said oligosaccharides by use of said enzyme or a microorganism capable of producing said enzyme.Type: GrantFiled: August 2, 1994Date of Patent: September 26, 1995Assignees: Kikkoman Corporation, Noda Institute for Scientific ResearchInventors: Tetsuya Oguma, Tatsuo Horiuchi, Koichiro Tobe
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Patent number: 5364936Abstract: The present invention relates to a novel cycloisomaltooligosaccharide selected from the group consisting of novel cycloisomaltoheptaose having a cyclic structure composed of 7 glucose residues in .alpha.-1,6 linkage, novel cycloisomaltooctaose having a cyclic structure composed of 8 glucose residues in .alpha.-1,6 linkage and novel cycloisomaltononaose having a cyclic structure composed of 9 glucose residues in .alpha.-1,6 linkage, novel cycloisomaltooligosaccharide synthase forming said oligosaccharides from dextran, and a process for producing said oligosaccharides by use of said enzyme or a microorganism capable of producing said enzyme.Type: GrantFiled: December 28, 1993Date of Patent: November 15, 1994Assignees: Kikkoman Corporation, Noda Institute for Scientific ResearchInventors: Tetsuya Oguma, Tatsuo Horiuchi, Koichiro Tobe
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Patent number: 5238825Abstract: The present invention relates to the preparation of a cylodextrinase having specific physicochemical characteristics relating to action, substrate specificities, optimum pH, stable pH, inhibition, activation and molecular weight by culturing a specified microorganism belonging to the genus Bacillus, and also provides a process for preparing maltooligosaccharides by using the present enzyme on cylodextrins.Type: GrantFiled: February 14, 1992Date of Patent: August 24, 1993Assignee: Kikkoman CorporationInventors: Tetsuya Oguma, Mamoru Kikuchi, Kiyoshi Mizusawa, Shoichi Tokutake, Nobuyuki Yamaji
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Patent number: 5231193Abstract: A process for producing ellagic acid comprising reacting a tannin having gallic acid residues attached as constituents with an oxidizing agent at pH 7 or higher.Type: GrantFiled: March 25, 1992Date of Patent: July 27, 1993Assignee: Kikkoman CorporationInventors: Kiyoshi Mizusawa, Yasuhiko Imai, Katsumi Yuasa, Hirokazu Koyama, Nobuyuki Yamaji, Shigehiro Kataoka, Tetsuya Oguma
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Patent number: 5110734Abstract: The present invention relates to a novel cyclodextrinase having the specific physicochemical characteristics relating to action, substrate specificities, optimum pH, stable pH, inhibition, activation and molecular, weight. This novel enzyme can be produced by culturing a specified microorganism belonging to the genus Bacillus. The invention also provides a process for preparing maltooligosaccharides by acting the present enzyme to cyclodextrins.Type: GrantFiled: June 6, 1990Date of Patent: May 5, 1992Assignee: Kikkoman CorporationInventors: Tetsuya Oguma, Mamoru Kikuchi, Kiyoshi Mizusawa, Shoichi Tokutake, Nobuyuki Yamaji