Patents by Inventor Yatsuka Fujita

Yatsuka Fujita 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: 5549919
    Abstract: The present invention relates to the preservation of foods, in which at least one kind of a natural antimicrobial agent selected from the group consisting of protamine, chitosan, and lysozyme to foods is added into the foods, and the foods obtained are stored in the presence of a deoxidizing agent under a substantially sealed condition. According to the present invention, the deterioration of foods by microbes, yeasts and the like which has not been sufficiently prevented by the use of conventional natural antimicrobial agents can be effectively prevented.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: August 27, 1996
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
    Inventors: Ryuzo Ueno, Yatsuka Fujita, Yoshiaki Nagamura, Yuji Kamino, Akihiko Tabata
  • Patent number: 5068467
    Abstract: The present invention provides an improved method of producing solid sorbitol which hardly cakes even in long storage, in which seed crystals are dispersed in melted sorbitol at a temperature that the melted sorbitol does not solidify but the seed crystals do not melt, and cooled to about 50.degree. to 85.degree. C., kept at said temperature for a given period and then cooled again.
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: November 26, 1991
    Assignee: K.K. Ueno Seiyaku Oyo Kenkyujo
    Inventors: Yuji Kunimi, Akihiko Tabata, Yatsuka Fujita
  • Patent number: 4992295
    Abstract: The present invention provides a method of frozen surimi, surimi based products and additives for dehydrated minced fish meat, in which reduced hydrolyzed starch is mixed with fish meat and the mixture frozen, and whereby said starch prevents the frozen surimi from freezing denaturation.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: February 12, 1991
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
    Inventors: Ryuzo Ueno, Toshitaka Nakashima, Kunihiko Tomiyasu, Yatsuka Fujita
  • Patent number: 4954358
    Abstract: The present invention provides a new inhibitor for Bacillus cereus which has been designated officially as a pathogen of food poisoning, which comprises a protamine or its salt as an essential component.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: September 4, 1990
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
    Inventors: Ryuzo Ueno, Yatsuka Fujita, Munemitsu Yamamoto, Hiroshi Kozakai
  • Patent number: 4910039
    Abstract: The present invention provides an additive for frozen surimi containing branched dextrins and a surface active agent for food; the frozen surimi into which the additives for surimi of the present invention are added does not give off a fish smell or a bad smell after thawed, and the fish meat product such as kamaboko, chikuwa and the like which is produced from the frozen surimi has a bad smell.
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: March 20, 1990
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
    Inventors: Yatsuka Fujita, Kunihiko Tomiyasu, Toshitaka Nakashima
  • Patent number: 4806378
    Abstract: The present invention provides a method of production of frozen surimi, from which a surimi (minced fish meat containing additives) and kamaboko (fish cake) having an excellent elasticity with softness and whiteness is obtained. In the present invention, as washing water for minced fish meat, water containing water soluble calcium or magnesium salts is used, after which the washed fish meat is dehydrated and surface active agents are added to the dehydrated minced fish meat.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: February 21, 1989
    Assignee: Ueno Seiyaku Kabushiki Kaisya
    Inventors: Ryuzo Ueno, Yatsuka Fujita
  • Patent number: 4647458
    Abstract: A liquid bactericide for foods and food processing machines or utensils, said bactericide comprising as active ingredients 98.0 to 2.3% (W/V) of ethyl alcohol, 1.0 to 96.7% (W/V) of an organic acid selected from the group consisting of lactic acid, acetic acid, citric acid, tartaric acid, gluconic acid, malic acid, ascorbic acid and phytic acid and 1.0 to 96.7% (W/V) of phosphoric acid; said bactericide being capable of sterilizing within 30 seconds when used in an aqueous solution, such that the concentration of active ingredients in solution consists of 14 to 1% (W/V) of ethyl alcohol, 13.0 to 0.3% (W/V) of said organic acid and 0.7 to 0.03% (W/V) of phosphoric acid.
    Type: Grant
    Filed: February 14, 1984
    Date of Patent: March 3, 1987
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
    Inventors: Ryuzo Ueno, Tatsuo Kanayama, Yatsuka Fujita, Munemitsu Yamamoto
  • Patent number: 4444796
    Abstract: A method for producing a pet food with good storage stability having a water content of 20 to 45% by weight and a pH of 6.0 or below, which comprises admixing granules having a particle diameter of 300 to 1500 microns and comprising as a main ingredient a fine powder of sorbic acid having a particle size (Tyler's mesh) smaller than 250 mesh with starting materials for the pet food to disperse the sorbic acid powder in the form of discrete fine particles uniformly in said starting materials, and heating these materials simultaneously with, or after, the mixing.
    Type: Grant
    Filed: May 5, 1982
    Date of Patent: April 24, 1984
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
    Inventors: Ryuzo Ueno, Toshio Matsuda, Shigeo Inamine, Tatsuo Kanayama, Yatsuka Fujita
  • Patent number: 4356203
    Abstract: A process for producing meat cured products having antibotulinal activity, which comprises separately adding to meat ascorbic acid or its salt and/or erythorbic acid or its salt in the form of a powder or aqueous solution and (B) a nitrite salt in the form of a powder or aqueous solution.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: October 26, 1982
    Assignee: Kabushiki Kaisha Ueno Seiyako Oyo Kenkyujo
    Inventors: Ryuzo Ueno, Toshio Matsuda, Tatsuo Kanayama, Kunihiko Tomiyasu, Yatsuka Fujita, Kiyoshi Nagata
  • Patent number: 4342789
    Abstract: A process for inhibiting growth of Clostridium botulinum and formation of nitrosamines in pork which comprises separately adding to the pork (A) a liquid or powdery additive composition containing sorbic acid or potassium sorbate and optionally (A') a powdery or liquid additive composition containing at least one of such reducing agents as ascorbic acid or its salts, erythorbic acid or its salts, higher fatty acid esters of ascorbic acid and erythorbic acid, higher acetals of ascorbic acid and erythorbic acid and tocopherols, and (B) a liquid or powdery curing agent containing nitrite.
    Type: Grant
    Filed: July 1, 1980
    Date of Patent: August 3, 1982
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
    Inventors: Ryuzo Ueno, Toshio Matsuda, Shigeo Inamine, Tatsuo Kanayama, Yatsuka Fujita
  • Patent number: 4305966
    Abstract: A process for making bacon having antibotulinal stability, comprising adding to pork, which has been cured with a curing agent so as to contain no more than 30 ppm of nitrite radical (NO.sub.2.sup.-) and not higher than 0.26% of potassium sorbate based on the weight of meat, an aqueous solution of a water-soluble organic acid and/or inorganic acid, and optionally sodium hexametaphosphate, thereby lowering the average pH of the bacon to approximately 6.0 or below.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: December 15, 1981
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
    Inventors: Ryuzo Ueno, Toshio Matsuda, Tatsuo Kanayama, Yatsuka Fujita, Shigeo Inamine
  • Patent number: 4299852
    Abstract: A process for the preparation of botulinal-resistant meat products, which comprises adding to the starting meat sorbic acid or potassium sorbate, glycerol monoester of C.sub.10 - or C.sub.12 -fatty acid, and the minimum amount necessary, for the product's color development, of a nitrous acid compound; or a process for the preparation of botulinal-resistant meat products, which comprises adding to the starting meat sorbic acid or potassium sorbate, glycerol monoester of C.sub.10 - or C.sub.12 - fatty acid and sodium hexametaphosphate; or a process for the preparation of botulinal-resistant meat products, which comprises adding to the starting meat sorbic acid or potassium sorbate, glycerol monoester of C.sub.10 - or C.sub.12 -fatty acid, sodium hexametaphosphate and the minimum necessary amount, for the product's color development, of a nitrous acid compound.
    Type: Grant
    Filed: May 16, 1980
    Date of Patent: November 10, 1981
    Assignee: Kabushiki Kaishaveno Seiyakuoyo Kenkyojo
    Inventors: Ryuzo Ueno, Toshio Matsuda, Tatsuo Kanayama, Kunihiko Tomiyasu, Yatsuka Fujita, Shigeo Inamine