Patents by Inventor Masanori Fujimoto

Masanori Fujimoto 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).

  • Cross-linked pullulan
    Patent number: 4152170
    Abstract: Cross-linked pullulans are obtained by the reaction of pullulan with a cross-linking agent selected from the group consisting of polycarboxylic acids, halogenated dicarboxylic acids, polycarboxylic anhydrides, aldehyde compounds, N-methylol compounds, isocyanate compounds, metaphosphoric acid salts, divinyl compounds, bis-aziridine and bifunctional compounds of the formula,X--R--Zwherein X and Z are each a halogen atom or an epoxy group and R is an aliphatic residue having 1 to 30 carbon atoms, in a solvent, and are useful as gels or beds for chromatography or in various fields requiring high degrees of water absorbency and retention.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: May 1, 1979
    Assignees: Sumitomo Chemical Company, Ltd., Hayashibara Biochemical Laboratories, Inc.
    Inventors: Tsuneyuki Nagase, Kozo Tsuji, Masanori Fujimoto, Fujio Masuko
  • Cross-linked saponified absorbent polymer
    Patent number: 4124748
    Abstract: A highly absorbent polymer is obtained by saponifying a crosslinked copolymer of a vinyl ester and an ethylenically unsaturated carboxylic acid or the derivative thereof. The absorbent polymer is suitable as a material, for example, for separation and purification of substances and a seed culturing media for plants.
    Type: Grant
    Filed: November 19, 1976
    Date of Patent: November 7, 1978
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masanori Fujimoto, Kozo Tsuji, Tsuneyuki Nagase
  • Water-insoluble, hydrophilic gels and a method for the preparation of the same
    Patent number: 4102842
    Abstract: A less colored, water-insoluble, hydrophilic gel which is a saponified product of the copolymer of a vinyl ester and an ethylenically unsaturated carboxylic acid or derivatives thereof, is prepared by drying said saponified product in a hydrated state. This gel is useful as an absorbent polymer material.
    Type: Grant
    Filed: July 22, 1976
    Date of Patent: July 25, 1978
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masanori Fujimoto, Kozo Tsuji, Tsuneyuki Nagase
  • Protective coating material for lithographic printing plate
    Patent number: 4095525
    Abstract: A protective coating material for lithographic printing plate, which comprises pullulan or pullulan derivatives. Said material is superior to hitherto used gum arabic solution in the protection of the surface of lithographic printing plate against oxidation and scumming as well as in the ability to enhance the hydrophilic character of metallic surface of a non-image area.
    Type: Grant
    Filed: October 20, 1976
    Date of Patent: June 20, 1978
    Assignees: Sumitomo Chemical Company, Limited, Hayashibara Biochemical Laboratories, Inc.
    Inventors: Norishige Tsukada, Kazuo Hagihara, Kozo Tsuji, Masanori Fujimoto, Tsuneyuki Nagase
  • Carboxylated pullulan and method for producing same
    Patent number: 4090016
    Abstract: Carboxylated pullulan obtained by oxidizing pullulan with an oxidizing agent is readily soluble in cold water and has favorable film-forming property, yielding a film having high mechanical strengths, high modulus of elasticity and good transparency.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: May 16, 1978
    Assignees: Sumitomo Chemical Company, Limited, Hayashibara Biochemical Laboratories, Inc.
    Inventors: Kozo Tsuji, Masanori Fujimoto, Fujio Masuko, Tsuneyuki Nagase
  • Polyolefin composition and process for preparing the same
    Patent number: 4031062
    Abstract: A polyolefin composition having high adhesive strength comprising a reaction product of (1) a crystalline polyolefin, (2) at least one compound selected from the group consisting of unsaturated aliphatic carboxylic acids and anhydrides thereof and (3) magnesium oxide, and a process for preparing the polyolefin composition are disclosed.
    Type: Grant
    Filed: September 26, 1974
    Date of Patent: June 21, 1977
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kenzo Shirayama, Shinichiro Kita, Masanori Fujimoto