Patents by Inventor Takahiko Mitani

Takahiko Mitani 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: 5432261
    Abstract: A pharmaceutical composition for stimulating peristaltic contraction in the intestinal canal which contains a pharmaceutically acceptable carrier or excipient and an effective amount of a polypeptide, or a salt thereof, having a pharmacological activity similar to motilin. The polypeptide has the formula B.sub.1 -Z.sub.1 -A.sub.1 -Z.sub.2 -B.sub.2 -Thr-B.sub.3 -A.sub.2 -Glu-Z.sub.3 -C-Arg-X'-Gln-Glu-Lys-Glu-Arg-D-Lys-Gly-E-Y, with Z.sub.1,Z.sub.2 and Z.sub.3 each being an amino acid residue having a hydrophobic side-chain, A.sub.1 and A.sub.2 each being an amino acid residue such as Pro, Gly, Asn and Ser, B.sub.1, B.sub.2 and B.sub.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: July 11, 1995
    Assignee: Sanwa Kagaku Kenkyusho Co. Ltd.
    Inventors: Masayasu Kurono, Takahiko Mitani, Haruo Takahashi, Kenichi Tanaka, Katsuya Fujimura, Yuji Hayashi, Yohei Kobayashi, Kiichi Sawai
  • Patent number: 5428015
    Abstract: Vasoactive intestinal polypeptide (VIP) analogues and use thereof are disclosed. The VIP analogues are shown by the formula ofHis-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-X-Ala-Val-L ys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-Ywherein X is a residue of amino acid other than methionine (Met); and Y is homoserine, homoserine-lactone, amidized homoserine, a residue reacted homoserine-lactone with a primary alkyl amine having carbon atoms not exceeding 20, or an optional polypeptide chain and containing an amidized homoserine at C-terminal.Each of the VIP analogues is employed as an effective ingredient for various medicines and a hair tonic, and more particularly curing an asthma and impotence.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: June 27, 1995
    Assignee: Sana Kagaku Kenkyusho Co., Ltd.
    Inventors: Masayasu Kurono, Takahiko Mitani, Haruo Takahashi, Kiichi Sawai
  • Patent number: 5376637
    Abstract: There is disclosed a pharmaceutical preparation which contains vasoactive intestinal polypeptide (VIP), its analogue or a salt thereof, and a surfactant. The preparation shall contains further a peptidase inhibitor. The composition is administrated to suppress allergies, reduce blood pressure, increase secretion of tear, cure asthma and impotence and others.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: December 27, 1994
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Masayasu Kurono, Takahiko Mitani, Makoto Sato, Haruo Takahashi, Hiroyuki Ohwaki
  • Patent number: 5356880
    Abstract: The invention provides a novel glycoside which contains as the aglycon a 4-(substituted phenyl)piperazine-1-yl derivative of glycyrrhetinic acid and 11-deoxo-glycyrrhetinic acid or their derivative as well as a composition for the treatment of virus infection, which contains these compounds as a main active component.
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: October 18, 1994
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Masayasu Kurono, Yoshiro Ishiwata, Syoji Yokochi, Kyoichi Asano, Takahiko Mitani, Takuji Kakigami, Noriyuki Iwata, Kougaku Isogawa, Yutaka Baba, Hiroyuki Ohwaki, Kiichi Sawai, Hiromoto Kimura, Masato Fukushima, Ryoichi Unno, Tamaki Ohtuka
  • Patent number: 5279835
    Abstract: A 3-oxygermylpropionic acid preparation is provided, which activates the action of 3-oxygermylpropionic acid having the general formula:[(O.sub.1/2).sub.3 GeCH.sub.2 CH.sub.2 COOH]n wherein n=an integer of at least 1 and is readily solubilized and disintegrated in vivo. The present preparation is manufactured by compression-molding at high pressure a composition comprising 3-oxygermylpropionic acid and two or more low-molecular substance of high solubility in water. The low-molecular substances are selected from the group consisting of white sugar, sorbitol, fructose, sucrose, glucose, lactose, mannitol and sodium chloride.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: January 18, 1994
    Assignee: Sanwa Kagaku Kenkyusho Co. Ltd.
    Inventors: Kiichi Sawai, Masayasu Kurono, Takahiko Mitani, Yasuaki Kondo, Makoto Sato, Yoshiro Ishiwata, Syoji Yokochi, Toshiyuki Kouzaki
  • Patent number: 5260056
    Abstract: An organic germanium compound to be effectively used for curing AIDS or making AIDS asymtomatic in various forms is expressed by the following rational formula: ##STR1## wherein n is an integer of 1 or 2 or more, is in the form of a white acicular or needle crystal, shows a solubility of 1.570/100 ml in water at 25.degree. C. and exhibits a melting (decomposition) point of 240.degree. C.
    Type: Grant
    Filed: January 14, 1991
    Date of Patent: November 9, 1993
    Assignee: Sanwa Kagaku Kenkyusho Co. Ltd.
    Inventors: Kiichi Sawai, Masayasu Kurono, Takahiko Mitani, Naohisa Ninomiya, Yoshiro Ishiwata, Syoji Yokochi, Kyoichi Asano, Kaneo Yamada, Masashi Taki, Takashi Meguro, Mikio Minamitani, Takao Matumoto, Yuichi Shiokawa
  • Patent number: 5240700
    Abstract: A composition for inhibiting the degeneration of cells including liver cells by drugs and relieving the toxicity of drugs to internal organs including the liver contains as an essential component a 3-oxygermylpropionic acid polymer which is represented by:[(O.sub.1/2).sub.3 GeCH.sub.2 CH.sub.2 COOH].sub.nwherein n is an integer of at least 1, takes the form of a white acicular crystal and has a melting point of about 230.degree. C. at which it decomposes or coagulates. The present composition may be used with a carrier hydroxypropylcellulose in an amount of 0.005 to 50% by weight relative to 0.005 to 5% by weight of the 3-oxygermylpropionic acid polymer.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: August 31, 1993
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Masayasu Kurono, Kazumasa Nakano, Kyoichi Asano, Takahiko Mitani, Naohisa Ninomiya, Bunkichi Kato
  • Patent number: 5211956
    Abstract: Pharmaceutical compositions for oral administration used for the treatment and prevention of hyperlipemia, obesity and obesity-related diseases contain phytic acid or its salt as a pharmaceutically effective component.
    Type: Grant
    Filed: May 3, 1989
    Date of Patent: May 18, 1993
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Masayasu Kurono, Hiromoto Asai, Takahiko Mitani, Naohisa Ninomiya
  • Patent number: 5180739
    Abstract: A pharmaceutical composition is used to treat and prevent a diabetes-dependent type of autoimmune diseases, said pharmaceutical composition comprising a therapeutically effective amount of 3-oxygermylpropionic acid represented by the following formula:[(O.sub.1/2).sub.3 GeCH.sub.2 CH.sub.2 CO.sub.2 H].sub.nwherein n stands for an integer of 1 or more, optionally with an activating carrier.
    Type: Grant
    Filed: February 23, 1991
    Date of Patent: January 19, 1993
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Masayasu Kurono, Takahiko Mitani, Masanori Nagabuchi, Keizo Anzai
  • Patent number: 5166388
    Abstract: A stabilized composition of phytic acid is obtained by the steps of:heating and drying rice bran de-fatted by pressing;adding acidic water of pH 3 to 5 to the dried rice bran, stirring the solution and completing the stirring before the pH of the solution reaches 5.7; andheating the thus obtained liquid extract to solidify protein components, followed by the removal of the solid matters by filtration. This composition is advantageously used for removing uraroma and body odor.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: November 24, 1992
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Masayasu Kurono, Hiromoto Asai, Takahiko Mitani, Naohisa Ninomiya
  • Patent number: 5118503
    Abstract: Composition obtained from a rice bran, which comprises a filtrate of lactic fermented and aged material of the rice bran, the filtrate being an odorless pale yellow solution, having a salty taste, and solubility with water and alcohols, or a powderized substance of the filtrate, a process for the preparation of the composition, and use of the composition as a deodorant.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: June 2, 1992
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Masayasu Kurono, Hiromoto Asai, Takahiko Mitani, Naohisa Ninomiya, Eiji Furukawa
  • Patent number: 5106735
    Abstract: A cloned single-strand DNA comprising nucleotide sequence which encodes an antibacterial polypeptide precursor, a cloned double-strand DNA consisting of the single-strand DNA and its complementary single-strand DNA, a DNA fragment of the single- or double-strand DNA, a process for the preparation thereof, and a plasmid, in which the double-strand DNA or its fragment is inserted.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: April 21, 1992
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Shunji Natori, Haruo Takahashi, Kenichi Tanaka, Takahiko Mitani, Masayasu Kurono, Kiichi Sawai
  • Patent number: 5089265
    Abstract: A stabilized phytic acid composition is provided, which comprises phytic acid or its salt and at least one stabilizer selected from the group consisting of a product obtained by the lactic fermentation and ripening of rice bran, a water-soluble polymer capable of forming a film and an additive capable of absorbing water.
    Type: Grant
    Filed: October 24, 1989
    Date of Patent: February 18, 1992
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Masayasu Kurono, Hiromoto Asai, Takahiko Mitani, Naohisa Ninomiya
  • Patent number: 5059594
    Abstract: A novel composition contains phytic acid and ferric ions as main ingredients and carboxylic acid ions as a dissolution accelerator, and may further include at least one or more or two additives selected from the group consisting of a carboxylic acid or its salt, saccharides, an amino acid or its salt and an organic phosphoric acid or its salt.
    Type: Grant
    Filed: March 22, 1990
    Date of Patent: October 22, 1991
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Masayasu Kurono, Hiromoto Asai, Takahiko Mitani, Naohisa Ninomiya, Tomoo Suzuki
  • Patent number: 5041429
    Abstract: Phytic acid or at least one of its salts is used as an effective component for cell activators in a hypoxic state, circulatory ameliorators, dementia remedies and edible compositions.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: August 20, 1991
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Masayasu Kurono, Hiromoto Asai, Takahiko Mitani, Motohide Hayashi, Tunematu Suzuki, Naohisa Ninomiya
  • Patent number: 5017486
    Abstract: A cloned single-strand DNA comprising nucleotide sequence which encodes an antibacterial polypeptide precursor, a cloned double-strand DNA consisting of the single-strand DNA and its complementary single-strand DNA, a DNA fragment of the single- or double-strand DNA, a process for the preparation thereof, and a plasmid, in which the double-strand DNA or its fragment is inserted are disclosed.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: May 21, 1991
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Shunji Natori, Haruo Takahashi, Kenichi Tanaka, Takahiko Mitani, Masayasu Kurono
  • Patent number: 5008416
    Abstract: An organogermanium compound of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are hydrogen atom, alkyl, substituted alkyl, phenyl or substituted phenyl, and R.sub.5 is a radical of ##STR2## n is an integer of 2 or more, and R.sub.6 and R.sub.7 are hydrogen atom, alkyl, substituted alkyl, phenyl or substituted phenyl,a salt of the compound, a processs for the preparation of the compound as well as a use of the compound as an affective ingredient for pharmaceutical preparations.
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: April 16, 1991
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Masayasu Kurono, Yasuaki Kondo, Takahiko Mitani, Yutaka Baba, Kiichi Sawai
  • Patent number: 4985356
    Abstract: A cloned single-strand DNA comprising nucleotide sequence which encodes human motilin precursor, a cloned double-strand DNA consisting of the single-strand DNA and its complementary single-strand DNA, a fragment of the single- or double-strand DNA, a plasmid, in which the double-strand DNA or its fragment is integrated, as well as a process for the preparation of the single- or double-strand DNA.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: January 15, 1991
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Jun Takeda, Yutaka Seino, Hiroo Imura, Kenichi Tanaka, Haruo Takahashi, Takahiko Mitani, Masayasu Kurono
  • Patent number: 4952568
    Abstract: Remedies, preventives and functional diets for diabetic diseases, esp., diabetes, contain phytic acid or its salt or salts. The salt of phytic acid is a non-toxious metal salt, or a non-toxious salt with an organic base, a basic amino acid or an organic ester residue, and has a compositional form together with or separately from phytic acid.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: August 28, 1990
    Assignee: Sanwa Kagaku Kenkyusho Co., Ltd.
    Inventors: Kiichi Sawai, Masayasu Kurono, Hiromoto Asai, Takahiko Mitani, Kazumasa Nakano, Naohisa Ninomiya
  • Patent number: 4929438
    Abstract: Preventives or remedies for medicinal and alcoholic poisoning contain as a pharmaceutically effective component phytic acid or its salt which may be an innoxious metal salt, or an innoxious salt with an organic base, a basic amino acid or an organic ester residue.
    Type: Grant
    Filed: February 15, 1989
    Date of Patent: May 29, 1990
    Assignee: Kabushiki Kaisha Sanwa Kagaku Kenkyusho
    Inventors: Kiichi Sawai, Masayasu Kurono, Hiromiotu Asai, Takahiko Mitani, Naohisa Ninomiya, Takao Sugiyama, Eiji Furukawa, Hisashi Michishita