Patents by Inventor Akira Asahi

Akira Asahi 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: 11028353
    Abstract: A method and device for efficiently removing an unwanted component included in a beverage, which includes bringing the beverage into contact with a metal-supported zeolite.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: June 8, 2021
    Assignees: THE NIKKA WHISKY DISTILLING CO., LTD., Idemitsu Kosan Co., Ltd.
    Inventors: Kenji Hosoi, Toshikazu Sugimoto, Akira Asahi, Yoshimi Kawashima, Mitsuko Murata, Shun Fukasawa
  • Publication number: 20170037347
    Abstract: A method and device for efficiently removing an unwanted component included in a beverage, which includes bringing the beverage into contact with a metal-supported zeolite.
    Type: Application
    Filed: December 19, 2014
    Publication date: February 9, 2017
    Applicants: THE NIKKA WHISKY DISTILLING CO., LTD., Idemitsu Kosan Co., Ltd.
    Inventors: Kenji HOSOI, Toshikazu SUGIMOTO, Akira ASAHI, Yoshimi KAWASHIMA, Mitsuko MURATA, Shun FUKASAWA
  • Patent number: 5155259
    Abstract: An aldose reductase inhibitor, comprising a compound of the formula (I) ##STR1## or a pharmaceutically acceptable salt thereof as the effective component, in which R is lower alkyl or cyclohexylmethyl and n is 2 or 3. The compounds of formula (I) and salts thereof according to the invention exhibit a superior aldose reductase inhibiting activity with simultaneous high stability, so that they are useful for the prevention and therapy of diabetic complications.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: October 13, 1992
    Assignee: Toyo Jozo Kabushiki Kaisha
    Inventors: Yukio Suzuki, Kouichi Kuno, Motoshi Shoda, Masao Yaso, Satoshi Yaginuma, Akira Asahi
  • Patent number: 5136090
    Abstract: An aldose reductase inhibitor, comprising a compound of the formula ##STR1## or a pharmaceutically acceptable salt thereof as the effective component, in which R denotes an alkyl of C.sub.1-12, ##STR2## wherein X.sub.1 and X.sub.2 are same or different and are hydrogen or halogen, cyclohexylmethyl, cyclohexyl, tetra-hydro-2H-pyran-1-yl-methyl, carboxy-lower alkyl or cyclo-lower alkyl and n is 2 or 3. These compounds exhibit a superior aldose reductase inhibiting activity with simultaneous high stability, and are for use in the prevention and therapy of diabetic complications.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: August 4, 1992
    Assignee: Toyo Jozo Kabushiki Kaisha
    Inventors: Yukio Suzuki, Kouichi Kuno, Motoshi Shoda, Masao Yaso, Satoshi Yaginuma, Akira Asahi
  • Patent number: 4749571
    Abstract: A physiologically-active novel substance "aldostatin" having an estimated molecular formula of C.sub.20 H.sub.20 N.sub.2 O.sub.8 is produced by culturing an aldostatin-producing microorganism of the Pseudeurotium, for example, the Pseudeurotium zonatum M4109 strain. Aldostatin inhibits the aldose reductase activity and as a consequence, avoids abnormal accumulation of sorbitol, galactitol, etc. It is therefore effective for the treatment of chronic complications such as cataract, retinopathy and neuropathy caused by diabetes renalis.
    Type: Grant
    Filed: February 19, 1987
    Date of Patent: June 7, 1988
    Assignee: Toyo Jozo Co., Ltd.
    Inventors: Satoshi Yaginuma, Akira Asahi, Masaki Takada
  • Patent number: 4732910
    Abstract: A substance is provided which has strong enzyme inhibitory activity against thiol proteases such as papain, ficin, bromelain, etc. and which is represented by the following formula: ##STR1## (wherein R is a hydrogen atom or a hydroxyl group), its pharmaceutically acceptable salt or hydrate.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: March 22, 1988
    Assignee: Toyo Jozo Co, Ltd.
    Inventors: Satoshi Yaginuma, Akira Asahi, Masaki Takada, Mitsuo Hayashi, Kiyofumi Fukukawa
  • Patent number: 4267198
    Abstract: A melt-coated preparation comprising sorbic acid particles and a coating agent composed mainly of a solid fat, at least 80% by weight of the sorbic acid having a particle diameter greater than 80 microns to about 150 microns, and the amount of the sorbic acid being about 0.9 to 2 times the weight of the coating agent.
    Type: Grant
    Filed: June 27, 1979
    Date of Patent: May 12, 1981
    Assignee: Daicel Ltd.
    Inventors: Kazuo Sato, Akira Asahi, Takahiro Koyama
  • Patent number: 3992442
    Abstract: A process for manufacturing sorbic acid in a continuous manner which comprises preparing a polyester from ketene and crotonaldehyde and then decomposing the polyester with hydrochloric acid in a multiple reactor system under such conditions that the degree of the decomposition of the starting polyester in each reactor is maintained at either (1) not more than 45 percent, or (2) not less than 90 percent.
    Type: Grant
    Filed: December 13, 1974
    Date of Patent: November 16, 1976
    Assignee: Daicel, Ltd.
    Inventors: Osamu Kageyama, Manabu Kai, Tadayuki Mitani, Akira Asahi, Sadao Sasaki
  • Patent number: 3963773
    Abstract: Peracetic acid is produced by the catalytic reaction of acetaldehyde with molecular oxygen or an oxygen containing gas by forwarding the reactants through an upright reaction vessel which is divided into at least three reaction zones by perforated partition plates in which the size of the perforations and the height of the reaction zones are selected so as to achieve an average gas flow velocity in the range of 0.4 - 6.0 m. per second at the perforations and a superficial gas flow velocity of 0.04 - 0.15 m. per second across the entire vessel.
    Type: Grant
    Filed: June 13, 1974
    Date of Patent: June 15, 1976
    Assignee: Daicel, Ltd.
    Inventors: Toshiharu Ishi, Akira Asahi, Hiroaki Fujita, Takeshi Sato, Nobusuke Urabe