Patents by Inventor Kenkichi Tomita

Kenkichi Tomita 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).

  • Method for modulating the immune system
    Patent number: 5763420
    Abstract: An anti-inflammatory drug comprising as the effective component at least one compound selected from the group consisting of colominic acid, partial hydrolysis products of colominic acid and pharmaceutically acceptable salts, thereof. The drug is used as a drug for renal diseases, a drug for hepatitis, an immunomodulator and a drug for inhibiting the chemotaxis of neutrophil.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: June 9, 1998
    Assignee: MECT Corporation
    Inventors: Ryoichi Osawa, Isao Suda, Masaaki Numata, Mamoru Sugimoto, Kenkichi Tomita, Nobuyuki Kibushi, Takayuki Ishii, Naokazu Sugiyama, Makiko Kasano, Tae Yasunaga, Makoto Tanaka, Tomoya Ogawa, Mariko Ishii
  • Methods for inhibiting the chemotaxis of neutrophils
    Patent number: 5668115
    Abstract: An anti-inflammatory drug comprising as the effective component at least one compound selected from the group consisting of colominic acid, partial hydrolysis products of colominic acid and pharmaceutically acceptable salts thereof. The drug is used as a drug for renal diseases, a drug for hepatitis, an immunomodulator and a drug for inhibiting the chemotaxis of neutrophil.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: September 16, 1997
    Assignee: MECT Corporation
    Inventors: Ryoichi Osawa, Isao Suda, Masaaki Numata, Mamoru Sugimoto, Kenkichi Tomita, Nobuyuki Kibushi, Takayuki Ishii, Naokazu Sugiyama, Makiko Kasano, Tae Yasunaga, Makoto Tanaka, Tomoya Ogawa, Mariko Ishii
  • Anti-inflammatory agent
    Patent number: 5516764
    Abstract: An anti-inflammatory drug comprising as the effective component at least one compound selected from the group consisting of colominic acid, partial hydrolysis products of colominic acid and pharmaceutically acceptable salts thereof. The drug is used as a drug for renal diseases, a drug for hepatitis, an immunomodulator and a drug for inhibiting the chemotaxis of neutrophil.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: May 14, 1996
    Assignee: Mect Corporation
    Inventors: Ryoichi Osawa, Isao Suda, Masaaki Numata, Mamoru Sugimoto, Kenkichi Tomita, Nobuyuki Kibushi, Takayuki Ishii, Naokazu Sugiyama, Makiko Kasano, Tae Yasunaga, Makoto Tanaka, Tomoya Ogawa, Mariko Ishii
  • Preparation for treating renal disease
    Patent number: 5393742
    Abstract: A preparation is useful for treating renal disease, such as nephritis and especially nephrosis (nephrotic syndrome), which comprises an effective amount of N-acetylneuraminic acid shown by the formula ##STR1## wherein, when n is 1, Z represents hydrogens, lithium, potassium, sodium, ammonium or organic ammonium, and when n is 2, Z represents calcium, barium or magnesium, and a pharmacologically acceptable carrier.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: February 28, 1995
    Assignee: MECT Corporation
    Inventors: Takayuki Ishii, Makiko Kasano, Tae Yasunaga, Mariko Ishii, Mamoru Sugimoto, Kenkichi Tomita, Takeshi Miyata, Makoto Tanaka
  • GM.sub.3 analogous compound
    Patent number: 5264567
    Abstract: GM.sub.3 analogous compound (I) below: ##STR1## wherein one of R.sup.2 and R.sup.3 represents a neuramic acid group represented by general formula (V): ##STR2## R.sup.5 represents ##STR3## or hydrogen; R.sup.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: November 23, 1993
    Assignee: Mect Corporation
    Inventors: Masaaki Numata, Mamoru Sugimoto, Shuji Fujita, Masanori Kobayashiu, Kenkichi Tomita, Makoto Tanaka, Tomoya Ogawa
  • Sulfated oligosaccharides and derivatives thereof
    Patent number: 4992533
    Abstract: The present invention relates to sulfated oligosaccharides or their derivatives such as the following compound and being useful for diagnosing or treating diseases such as immunity-related diseases and mucopolysaccharide diseases. ##STR1## (M is an alkali metal).
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: February 12, 1991
    Assignees: Rikagaku Kenkyusho, Mect Corporation
    Inventors: Masanori Kobayashi, Mamoru Sugimoto, Kenkichi Tomita, Yukishige Ito, Tomoya Ogawa
  • N-(2-Ethylhexyl)-crotonamides
    Patent number: 4229471
    Abstract: Novel compounds having the general formula: ##STR1## wherein R is selected from hydrogen and methyl, effectively inhibit the growth of cancerous cells. These compounds are useful as carcinostatic agents.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: October 21, 1980
    Assignee: The Lion Dentifrice Co., Ltd.
    Inventors: Atsushi Ichikawa, Kenkichi Tomita, Taku Horiuchi, Shin-ichi Suzuki, Akira Sakuma