Patents by Inventor Danji Fukushima

Danji Fukushima 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: 4797421
    Abstract: An antioxidant containing a proanthocyanidin which is at least one member selected from the group consisting of those dimers to decimers which have bonded thereto as a structural unit a flavan-3-ol or flavan-3,4-diol represented by the general formula: ##STR1## (wherein R.sub.1 is hydrogen or a hydroxyl group, R.sub.2, R.sub.3 and R.sub.4 are each hydrogen, a hydroxyl group or a methoxy group, and R.sub.5 is hydrogen, a galloyl group or a glycopyranosil group).
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: January 10, 1989
    Assignee: Kikkoman Corporation
    Inventors: Toshiaki Ariga, Ikunori Koshiyama, Danji Fukushima
  • Patent number: 4791001
    Abstract: This invention relates to a method for grinding soybeans by grinding soaked soybeans together with a predetermined amount of water to obtain a soybean slurry which method comprises grinding the soaked soybeans in the presence of 10 to 30% by volume of air relative to the total weight of the soaked soybeans and the water, and also to a method for producing retort or aseptic packed tofu using the soybean milk obtained by the method of grinding.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: December 13, 1988
    Assignee: Kikkoman Corporation
    Inventors: Masaru Matsuura, Akio Obata, Norikazu Fujii, Akio Nobuhara, Danji Fukushima
  • Patent number: 4348477
    Abstract: A method for preparing a novel recombinant DNA, which comprises (1) cleaving with an endonuclease a phage DNA having an endonuclease-sensitive region not in the DNA segment participating in temperate phage DNA replication and integration of DNA into a host chromosome but in other DNA segments, a temperate phage DNA having an endonuclease-sensitive region in the DNA segment carrying genetic information for the production of coat protein, and a DNA carrying the intended genetic information, (2) mixing together all fragments produced by said cleaving, (3) adding DNA ligase to the mixture, and (4) recovering from the resulting mixture a phage DNA having its coat protein producing ability deleted by the replacement of the DNA segment carrying genetic information for coat protein production with a DNA fragment carrying the intended genetic information.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: September 7, 1982
    Assignee: Noda Institute for Scientific Research
    Inventors: Eiichi Nakano, Tsutomu Masuda, Narimasa Saito, Danji Fukushima
  • Patent number: 4348478
    Abstract: A method for the preparation of a novel recombinant DNA, which comprises (1) cleaving with an endonuclease a temperate phage DNA having an endonuclease-sensitive region not in the DNA segment participating in the replication of phage DNA and the integration of phage DNA into a host chromosome but at least in the DNA segment carrying genetic information for the coat protein production and another DNA carrying intended genetic information, (2) adding DNA-ligase to the mixture of both cleft DNA's, and (3) recovering from the mixture a phage DNA having its coat protein producing ability deleted by the replacement of the DNA segments carrying genetic information for the coat protein production with a DNA fragment carrying the intended information.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: September 7, 1982
    Assignee: Noda Institute for Scientific Research
    Inventors: Eiichi Nakano, Tsutomu Masuda, Narimasa Saito, Danji Fukushima
  • Patent number: 4332897
    Abstract: A novel bacteriophage whose DNA molecule has endonuclease-sensitivity only in the DNA region carrying genetic information for the production of phage coat proteins can be obtained by isolating an endonuclease-resistant mutant from one of the lambdoid bacteriophages and mating the resulting bacteriophage with a lambdoid phage having endonuclease-sensitivity in the DNA region carrying genetic information for the production of coat proteins.
    Type: Grant
    Filed: April 12, 1978
    Date of Patent: June 1, 1982
    Assignee: Noda Institute for Scientific Research
    Inventors: Eiichi Nakano, Narimasa Saito, Danji Fukushima