Patents by Inventor Tetuo Kanematu

Tetuo Kanematu 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).

  • Stable gel composition containing a carboxymethyl cellulose salt and a process for the preparation of them
    Patent number: 4618491
    Abstract: Stable gel compositions comprising a water-soluble salt of carboxymethyl cellulose wetted by or dispersed in a hydrophilic organic liquid such as glycerol, methanol acetone or the like and an aqueous solution of a water-soluble polyvalent metal salt such as potassium alum, ferric chloride, cupric chloride or the like, which are useful as bases for many preparations of medicines, cosmetics and the like.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: October 21, 1986
    Assignee: Daicel Chemical Industries Ltd.
    Inventors: Tetuo Kanematu, Yoshiaki Yamaguchi
  • Dehydrating method
    Patent number: 4584092
    Abstract: Water is effectively removed out of an organic liquid by filtering the organic liquid with a highly water-absorptive sheet which has been prepared from an alkali metal salt of fibrous carboxymethylcellulose.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: April 22, 1986
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Tetuo Kanematu, Saburo Hamano
  • Low-melting glass paste and cellulose nitrate therefor
    Patent number: 4521251
    Abstract: A cellulose nitrate having a degree of nitration of from 12.2% to 14.1% in terms of the nitrogen content and a degree of polymerization of from 100 to 1,000 is suitable to prepare a low-melting glass paste.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: June 4, 1985
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Etsuo Otake, Mamoru Kimura, Hiromu Yokota, Tetuo Kanematu
  • Process for producing sodium carboxymethylcellulose
    Patent number: 4521594
    Abstract: A process for producing sodium carboxymethylcellulose having an excellent dispersibility in water by heat-treating sodium carboxymethylcellulose to crosslink the same. The starting sodium carboxymethylcellulose has an equivalent ratio of the free carboxylic acid group to the sodium carboxylate of at least 0.01 to 100 and a viscosity of at least 100 cP (as a 1% aqueous solution).
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: June 4, 1985
    Assignee: Daicel Chemical Industries, Ltd.
    Inventor: Tetuo Kanematu