Patents by Inventor Hitoshi Nagaoka

Hitoshi Nagaoka 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: 7494657
    Abstract: The inhibitor of Hepatitis B virus and HIV activity according to the present invention comprises a Lentinus edodes mycelium extract obtained by the steps of inoculating Lentinus edodes fungus in a solid culture medium comprising bagasse, then disentangling the solid culture medium containing the proliferated mycelium, adding water and at least one enzyme selected from a group consisting of cellulase, protease and glucosidase to the disentangled solid culture medium with keeping the solid culture medium at 30 to 50° C., grinding and milling the solid culture medium in the presence of the enzyme to obtain a Lentinus edodes mycelium extract, and then heating the extract to a temperature of not higher than 95° C. to inactivate the enzyme and sterilize the extract.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: February 24, 2009
    Inventor: Hitoshi Nagaoka
  • Publication number: 20040038330
    Abstract: The inhibitor of Hepatitis B virus and HIV activity according to the present invention comprises a Lentinus edodes mycelium extract obtained by the steps of inoculating Lentinus edodes fungus in a solid culture medium comprising bagasse, then disentangling the solid culture medium containing the proliferated mycelium, adding water and at least one enzyme selected from a group consisting of cellulase, protease and glucosidase to the disentangled solid culture medium with keeping the solid culture medium at 30 to 50° C., grinding and milling the solid culture medium in the presence of the enzyme to obtain a Lentinus edodes mycelium extract, and then heating the extract to a temperature of not higher than 95° C. to inactivate the enzyme and sterilize the extract.
    Type: Application
    Filed: August 19, 2003
    Publication date: February 26, 2004
    Inventor: Hitoshi Nagaoka
  • Patent number: 6090615
    Abstract: Useful ingredients are extracted from a mycelium-containing culture medium by the steps of inoculating basidiomycetes in a solid culture medium containing bagasse as a substrate and proliferating mycelium, and then squeezing the solid culture medium containing proliferated mycelium to obtain a squeeze liquid (i), separately, adding water and beta 1,3, glucanase and at least one enzyme selected from the group consisting of chitinase, cellulase and protease to a mycelium-containing solid residue having been separated from the squeeze liquid (i), stirring the resulting mixture with maintaining the mixture at 30 to 60.degree.0 C. to lyse mycelial cell walls, and heating the resulting cell wall lysis product-containing liquid (ii) up to a temperature of 95.degree. C. to inactivate the enzyme and perform sterilization. The cell wall lysis product-containing liquid (ii) contains .beta.-glucan in a high concentration and shows excellent antitumor effects.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: July 18, 2000
    Inventor: Hitoshi Nagaoka
  • Patent number: 5447803
    Abstract: A titanium nitride film forming method employing an ion-plating method to produce good decorative properties, to a titanium nitride film forming method which can maintain the stability of the color tone even under high temperatures, and to the vessel obtained through the above methods.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: September 5, 1995
    Assignee: Niigata Engineering Co., Ltd.
    Inventors: Hitoshi Nagaoka, Hiroshi Kanno
  • Patent number: 5412096
    Abstract: Hydrochloride salts of heterocyclic spiro compounds are provided and can be represented by the following general formula: ##STR1## wherein A represents piperidine or N alkyl piperidine or N alkylene attached to a non adjacent piperidine ring carbon, X is S or O, Y is carbonyl, thiocarbonyl, methylene, R.sup.5 methylene, ##STR2## alk in which R.sup.1 to R.sub.3,R.sub.6,R.sub.7 are H or alkyl, R.sub.4 is H, alkyl, COOH, or ester, or --C alkyl, R.sub.5 is halo, OH,SH, O alkyl, S alkyl, O acyl or S acyl, and Z, and Z.sub.2 are O or S. The above compounds act upon muscarinic acetylcholine receptors, thereby activating the acetylcholine nervous functions in the central nervous system.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: May 2, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Shin-ichi Tsukamoto, Hitoshi Nagaoka, Shinji Usuda, Masatomi Harada, Toshinari Tamura
  • Patent number: 5361562
    Abstract: The lid of a box is pushed up from the main body of the box by injecting gas by use of one or more injection nozzles into a gap formed between the lid and main body of the box and then, with part of a top plate of the lid in contact with a lid rotating stopper, gas is further injected into the gap, or the lid is pushed up by injecting gas into the gap by use of one or more lower position injection nozzles and then gas is injected into the gap by use of one or more higher position injection nozzles in one or more stages, before the lid is opened from the main body. Thereby, it is possible to prevent the lids from being opened in a three-dimensional inclined state (in a one-side opened state) as well as to prevent the lid and main body of a box from being pushed upwardly simultaneously.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: November 8, 1994
    Assignee: Niigata Engineering Co., Ltd.
    Inventors: Hitoshi Nagaoka, Hiroyuki Shimizu, Keizo Nakashima
  • Patent number: 5041549
    Abstract: Heterocyclic spiro compounds represented by the following general formula and salts thereof: ##STR1## wherein A represents piperidine or N alkyl piperidine or N alkylene attached to a non adjacent piperidine ring carbon, X is S or O, Y is carbonyl, thiocarbonyl, methylene, R.sup.5 methylene, ##STR2## in which R.sup.1 to R.sub.3, R.sub.6, R.sub.7 are H or alkyl, R.sub.4 is H, alkyl, --COOH, or ester, or ##STR3## R.sub.5 is halo, OH, SH, O alkyl, S alkyl, O acyl or S acyl, and Z.sub.1 and Z.sub.2 are O or S.The above compounds act upon muscarinic acetylcholine receptors, thereby activating the acetylcholine nervous functions in the central nervous system.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: August 20, 1991
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Shin-ichi Tsukamoto, Hitoshi Nagaoka, Shinji Usuda, Masatomi Harada, Toshinari Tamura
  • Patent number: 4996210
    Abstract: Heterocyclic spiro compounds represented by the following general formula and salts thereof ##STR1## The above compounds act upon muscarinic acetylcholine receptors, thereby activating the acetylcholine nervous functions in the central nervous system.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: February 26, 1991
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Shin-ichi Tsukamoto, Hitoshi Nagaoka, Shinji Usuda, Masatomi Harada, Toshinari Tamura
  • Patent number: 4987132
    Abstract: A saturated heterocyclic carboxamide derivative of the following general formula (I) and salts thereof which have platelet activating factor (PAF) antagonizing activity.
    Type: Grant
    Filed: August 16, 1988
    Date of Patent: January 22, 1991
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Toshiyasu Mase, Hiromu Hara, Hitoshi Nagaoka, Takumi Takahashi, Takeshi Suzuki, Kenichi Tomioka, Toshimitsu Yamada
  • Patent number: 4940795
    Abstract: Heterocyclic spiro compounds represented by the following general formula and salts thereof: ##STR1## The above compounds act upon muscarinic acetylcholine receptors, thereby activating the acetylcholine nervous functions in the central nervous system.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: July 10, 1990
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Shin-ichi Tsukamoto, Hitoshi Nagaoka, Shinji Usuda, Masatomi Harada, Toshinari Tamura
  • Patent number: RE34653
    Abstract: Heterocyclic spiro compounds represented by the following general formula and salts thereof: ##STR1## The above compounds act upon muscarinic acetylcholine receptors, thereby activating the acetylcholine nervous functions in the central nervous system.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: July 5, 1994
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Shin-ichi Tsukamoto, Hitoshi Nagaoka, Shinji Usuda, Masatomi Harada, Toshinari Tamura