Patents by Inventor Tsuyoshi Koriyama

Tsuyoshi Koriyama 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: 8722104
    Abstract: To an organic substance having a double bond such as a polyunsaturated fatty acid was added an antioxidative component containing an antioxidative sesame component and ascorbic acid or an ascorbyl fatty acid ester. The above method provides a composition containing an organic substance having a double bond exhibiting enhanced oxidative stability. Particularly, it extremely improves oxidative stability of fat and oil which contains polyunsaturated fatty acid. General-purpose refined fish oil which is easy to handle can be provided for food, medicine or feed uses.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: May 13, 2014
    Assignee: Nippon Suisan Kaisha, Ltd.
    Inventors: Nobushige Doisaki, Tsuyoshi Koriyama, Jun Okano, Shuji Jinno
  • Patent number: 8399694
    Abstract: An object of the present invention is to provide a more simplified and more efficient process for producing a highly purified orange roughy oil having high storage stability. The present invention provides a process for producing a highly purified orange roughy oil substantially free of a polyunsaturated fatty acid ester having 4 to 6 double bonds, and having a saponification value of 98 to 113 and an iodine value of 73 to 89, comprising washing with an alkaline aqueous solution to remove a free fatty acid; hydrogenating with a catalyst to reduce a polyunsaturated fatty acid ester; and purifying by treatment with an adsorbent.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: March 19, 2013
    Assignee: Nippon Suisan Kaisha, Ltd.
    Inventors: Kazuhiko Hata, Akito Yamabe, Tsuyoshi Koriyama
  • Publication number: 20100217021
    Abstract: An object of the present invention is to provide a more simplified and more efficient process for producing a highly purified orange roughy oil having high storage stability. The present invention provides a process for producing a highly purified orange roughy oil substantially free of a polyunsaturated fatty acid ester having 4 to 6 double bonds, and having a saponification value of 98 to 113 and an iodine value of 73 to 89, comprising washing with an alkaline aqueous solution to remove a free fatty acid; hydrogenating with a catalyst to reduce a polyunsaturated fatty acid ester; and purifying by treatment with an adsorbent.
    Type: Application
    Filed: October 10, 2008
    Publication date: August 26, 2010
    Applicant: NIPPON SUISAN KAISHA, LTD.
    Inventors: Kazuhiko Hata, Akito Yamabe, Tsuyoshi koriyama
  • Publication number: 20070275138
    Abstract: [Problems] To provide a method for controlling hydrogen sulfide odor generating in a treatment of a protein material at a high temperature under elevated pressure. Particularly, to provide a method for controlling hydrogen sulfide odor generating in the production of a food material having a fibrous texture by a treatment with an extruder at a high temperature under elevated pressure. Also, to provide a food material having controlled hydrogen sulfide odor which is obtained by treating a protein material at a high temperature under elevated pressure. [Means for Solving Problems] In the production of a food material obtainable by treating a protein material at a high temperature under elevated pressure, hydrogen sulfide odor is controlled by adding an ascorbic acid analog, preferably ascorbic acid, isoascorbic acid, dihydroascorbic acid or a salt thereof.
    Type: Application
    Filed: October 14, 2004
    Publication date: November 29, 2007
    Inventors: Takashi Mori, Tsuyoshi Koriyama
  • Publication number: 20070243309
    Abstract: To provide minced and heated fish meat material having a texture like meat of livestock, and foods utilizing the material. Fish meat, preferably fish meat wherein the decomposition of trimethylamine N-oxide is inhibited and the denaturation of protein is reduced, is chopped while keeping a frozen state, is heated until denaturation and coagulation of protein while keeping a frozen state and followed by seasoning. Alternatively, the seasoning is carried out simultaneously with the heating. According to the procedure, minced and heated fish meat material having a texture like meat of livestock, can be obtained. The material can be provided as it is, or can be provided as an ingredient of food produced from minced meat of livestock.
    Type: Application
    Filed: May 30, 2005
    Publication date: October 18, 2007
    Inventors: Toru Mizuguchi, Kenji Ono, Futoshi Samejima, Tsuyoshi Koriyama, Kouichi Yoshii, Takahiro Mikuriya
  • Publication number: 20060134178
    Abstract: To an organic substance having a double bond such as a polyunsaturated fatty acid was added an antioxidative component containing an antioxidative sesame component and ascorbic acid or an ascorbyl fatty acid ester. The above method provides a composition containing an organic substance having a double bond exhibiting enhanced oxidative stability. Particularly, it extremely improves oxidative stability of fat and oil which contains polyunsaturated fatty acid. General-purpose refined fish oil which is easy to handle can be provided for food, medicine or feed uses.
    Type: Application
    Filed: November 21, 2003
    Publication date: June 22, 2006
    Inventors: Nobushige Doisaki, Tsuyoshi Koriyama, Jun Okano, Shuji Jinno
  • Patent number: 7018669
    Abstract: A green soybean having a deep green color, prevented from discoloring, and being adaptable for chilled distribution is provided as a cooked and frozen product. The green soybean is hard to discolor and is frozen after cooking. The green color is retained even in a condition exposed to illumination of light. The green soybean contains chlorophyll a of not less than 3.8 g/100 g wet weight. A material for suppressing decomposition of chlorophyll, preferably an anti-oxidation material, e.g., ?-carotene, is accumulated in tissues of the green soybean. Preferably, ?-carotene of not less than 750 ?g/100 g wet weight is accumulated in the green soybean. The invention also provides a green soybean thawed from the frozen green soybean. The thawed green soybean is adaptable for chilled distribution.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: March 28, 2006
    Assignee: Nippon Suisan Kaisha, Ltd.
    Inventors: Masahito Kosaka, Tsuyoshi Koriyama
  • Publication number: 20040224075
    Abstract: A heat-sterilized or frozen seafood product having quality closer to that in a raw state thereof is provided.
    Type: Application
    Filed: June 10, 2003
    Publication date: November 11, 2004
    Inventors: Kiminori Sugiyama, Tsuyoshi Koriyama, Kiyoshi Takai
  • Publication number: 20040142088
    Abstract: Frozen vegetables capable of keeping good texture after freezing and then thawing. Vegetables in which peroxidase has been inactivated or its activity is lowered by superheated steam. Vegetables in which peroxidase has been inactivated and which have been sterilized. Cooked vegetable foods suffering from less worsening in texture, which have been sterilized and in which peroxidase has been inactivated by a cooking treatment with the use of superheated steam. Cooked vegetable foods wherein the above-described worsening in texture is attributable to softening of the texture, enhanced water release caused by separation and flowing out of water in chewing, and change into the porous and sponge-like form after freezing and then thawing. Frozen products of the vegetables or the vegetable foods described above, or thawed products thereof which are adaptable for distribution in a chilled state.
    Type: Application
    Filed: March 5, 2004
    Publication date: July 22, 2004
    Inventors: Masahito Kosaka, Tsuyoshi Koriyama
  • Patent number: 6716463
    Abstract: A coming layer agent is provided which can substantially avoid water from transferring from a food substrate to a “coatings”, such as a sheet and a coating, even when the food has been freeze-preserved, and which can prevent a decrease in crispness of the “coatings” after the food has been cooked by a microwave oven. A coating layer agent composition for frozen foods to be microwave-heated, each of the foods comprising a food substrate and a “coatings”, is featured in containing an emulsifier, preferably acetylated monoglycerides and/or protein, and/or oil and fat. The composition can be used in the form of powder mixed with and adhered to silicon dioxide. In this case, the composition can contain a coating layer agent preferably in the range of 100-250 weight % for silicon dioxide, and also can contain thermo-coagulating protein.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: April 6, 2004
    Assignee: Nippon Suisan Kaisha, Ltd
    Inventors: Tsuyoshi Koriyama, Satoshi Nakamura
  • Publication number: 20040062842
    Abstract: A green soybean having a deep green color, prevented from discoloring, and being adaptable for chilled distribution is provided as a cooked and frozen product. The green soybean is hard to discolor and is frozen after cooking. The green color is retained even in a condition exposed to illumination of light. The green soybean contains chlorophyll a of not less than 3.8 g/100 g wet weight. A material for suppressing decomposition of chlorophyll, preferably an anti-oxidation material, e.g., &bgr;-carotene, is accumulated in tissues of the green soybean. Preferably, &bgr;-carotene of not less than 750 &mgr;g/100 g wet weight is accumulated in the green soybean. The invention also provides a green soybean thawed from the frozen green soybean. The thawed green soybean is adaptable for chilled distribution.
    Type: Application
    Filed: August 6, 2003
    Publication date: April 1, 2004
    Inventors: Masahito Kosaka, Tsuyoshi Koriyama
  • Publication number: 20040005383
    Abstract: It is intended to provide functional seasonings having a function of promoting the penetration into materials, preferably together with another function of softening food materials, and a process for producing the functional seasonings.
    Type: Application
    Filed: February 5, 2003
    Publication date: January 8, 2004
    Applicant: Nippon Susan Kaisha Ltd.
    Inventors: Nobuiko Doumoto, Masahito Kosaka, Tsuyoshi Koriyama
  • Patent number: 6436462
    Abstract: To provide a boiled rice food which is less likely to become hard even at low temperatures and boiled rice food or a frozen boiled rice food which can be eaten without heating. A boiled rice food capable of being distributed and sold at low temperatures, such as sushi, characterized in that a polished rice having a phosphorus content of not less than 1,200 ppm, preferably not less than 1,300 ppm, most preferably not less than 1,400 ppm, is selected as the: starting rice material. The polished rice is preferably a non-glutinous rice having an amylose content of not more than 15%, most preferably a non-glutinous rice having an amylose content of not more than 12%, which is selected from those belonging to varieties of Ouu No.344, 343, or 354. The boiled rice food can be distributed and sold at low temperatures of 15° C. or below, preferably temperatures as low as 10° C. or below, still more preferably temperatures of 5C or below.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: August 20, 2002
    Assignee: Nippon Suisan Kaisha, Ltd.
    Inventors: Kouji Takami, Tsuyoshi Koriyama
  • Patent number: 4958012
    Abstract: A novel squid chitin formed material is disclosed. Squid chitin is prepared by pulverizing squid crust and treating the pulverized chitin with caustic soda and then with hydrochloric acid to remove proteins and ashes. Squid chitin formed material such as sheet or fiber is then prepared by a freeze-defrost treatment. The squid chitin sheet and fiber have better physical properties than conventional crab chitin formed materials in terms of strength and folding endurance.
    Type: Grant
    Filed: March 7, 1989
    Date of Patent: September 18, 1990
    Assignee: Nippon Suisan Kaisha, Ltd.
    Inventors: Seiichi Tokura, Tsuyoshi Koriyama, Yoshiyuki Chiba, Mikio Satake