Patents by Inventor Tadashi Sudo

Tadashi Sudo 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).

  • Anti-asialo-GM1 monoclonal antibodies and method of use
    Patent number: 5443957
    Abstract: A monoclonal antibody which reacts with glycolipid asialo GM1 but not with any of glycolipids GM1 and GM2 can be produced by hybridoma cells obtained by fusing antibody-producing cells of a mammal immunized with the glycolipid asialo GM1 with myeloma cells.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: August 22, 1995
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Shizio Shimada, Tadashi Sudo, Daiji Iwata
  • Common antigen (PSC-A) to Pseudomonas aeruginosa which acts as an agent for protecting Pseudomonas aeruginosa infection
    Patent number: 5114712
    Abstract: PSC-A is a new serological common antigen to Pseudomonas aeruginosa having very low toxicity, and highly effective for protecting infection by any of the serotypes of Pseudomonas aeruginosa. PSC-A can be used as the active component in a pharmaceutical agent for protecting Pseudomonas aeruginosa infection.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: May 19, 1992
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tamotsu Fukuda, Shiro Shigeta, Hiroaki Okuya, Yasuyuki Kuroiwa, Tadashi Sudo
  • Bacterial cell extract, process for preparing same, antitumor preparation containing same, and adjuvant preparation containing same
    Patent number: 4726947
    Abstract: Cells of a microorganism, such as Mycobacterium tuberculosis, belonging to the genus Mycobacterium are disrupted in distilled water or a suitable buffer solution, and then centrifuged or filtrated to remove the cell wall residue. To the aqueous cell-free extract is added a polyvalent metal salt or an antibiotic, such as streptomycin sulfate, which acts as a flocculant to form a precipitate. The precipitate consists essentially of sugar, protein, lipid, and nucleic acid. Owing to its high antitumor and adjuvant activities as well as its slight side effects, it can be used as antitumor and adjuvant preparations.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: February 23, 1988
    Assignee: Matsui Toatsu Chemicals, Inc.
    Inventors: Shizuo Shimada, Tadashi Sudo, Hitoshi Inoue, Yoshio Furutani, Yoshikazu Fujisawa
  • Common antigen (PSC-A) to Pseudomonas aeruginosa which acts as an agent for pretecting Pseudomonas aeruginosa infection
    Patent number: 4702910
    Abstract: PSC-A is a new serological common antigen to Pseudomonas aeruginosa having very low toxicity, and highly effective for protecting infection by any of the serotypes of Pseudomonas aeruginosa. PSC-A can be used as the active component in a pharmaceutical agent for protecting Pseudonomas aeruginosa infection.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: October 27, 1987
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tamotsu Fukuda, Shiro Shigeta, Hiroaki Okuya, Yasuyuki Kuroiwa, Tadashi Sudo
  • Hot-water extracts of neem bark
    Patent number: 4537774
    Abstract: Hot-water extracts of the neem bark produced by treating the bark of neem with water at a temperature from 0.degree. to 40.degree. C. and subjecting the residue from said pre-extraction treatment to extraction treatment with hot water. Purification of the extract thus produced by means of alcohol precipitation or dialysis gives products of a higher purity. Moreover, treatments prior to the pre-extraction treatment with water at 0.degree.-40.degree. C. with a non-polar organic solvent having a dielectric constant of 10 or lower and a polar organic solvent having a dielectric constant from 15 to 35 yields neem extracts of a further higher purity. The hot-water extracts of the neem bark according to the present invention possess activity against mouse L-5178Y cells and transplanted sarcoma 180 tumors.
    Type: Grant
    Filed: October 13, 1983
    Date of Patent: August 27, 1985
    Assignee: Terumo Corporation
    Inventors: Masaki Shimizu, Tadashi Sudo, Takeo Nomura
  • Neem bark extracts
    Patent number: 4515785
    Abstract: Neem bark extracts produced by pre-treating the bark of neem with an organic solvent having a dielectric constant of 10 or lower, for example, benzene or ethyl acetate and subjecting the residue obtained by the pre-treatment to extraction with a hydrophilic organic solvent having a dielectric constant from 15 to 35, for example, methanol or ethanol and recovering the neem bark extracts from the hydrophilic organic extraction solvent.
    Type: Grant
    Filed: September 13, 1983
    Date of Patent: May 7, 1985
    Assignee: Terumo Corporation
    Inventors: Masaki Shimizu, Tadashi Sudo, Takeo Nomura