Patents by Inventor Kazuo Wagatsuma

Kazuo Wagatsuma 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).

  • Immunomodulating agent
    Patent number: 4720506
    Abstract: Phenylacetic acid derivatives of the formula: ##STR1## wherein R.sup.1 is hydrogen or ##STR2## wherein R.sup.5 is an alkyl group of 1-6 carbon atoms or an aryl group; R.sup.2 and R.sup.3 are independently hydrogen or an alkyl group of 1-4 carbon atoms; R.sup.4 is hydrogen or an alkyl group of 1-4 carbon atoms, have been found to possess immunomodulating activity.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: January 19, 1988
    Assignees: Nippon Shinyaku Company, Limited, Mitsubishi Chemical Industries Limited
    Inventors: Hiroaki Munakata, Makio Kobayashi, Kazuo Wagatsuma, Shigeru Sato, Makoto Tsurufuji, Hiroshi Enomoto, Makoto Sugiyama, Yoshihisa Shibata, Iwao Morita
  • Glutamine derivatives
    Patent number: 4439448
    Abstract: Glutamine derivatives and non-toxic salts thereof have been found to have immunomodulating activities.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: March 27, 1984
    Assignees: Mitsubishi Chemical Industries Ltd., Nippon Shinyaku Co., Ltd.
    Inventors: Hiroaki Munakata, Makio Kobayashi, Kazuo Wagatsuma, Shigeru Sato, Makoto Tsurufuji, Hiroshi Enomoto, Shingo Matsumura, deceased
  • Amino acid derivatives of 6-(2-amino-2-arylacetamido)penicillanic acids
    Patent number: 4220587
    Abstract: Amino acid derivatives of 6-(2-amino-2-arylacetamido)penicillanic acids are prepared and shown to be useful as antibacterial agents.
    Type: Grant
    Filed: June 14, 1978
    Date of Patent: September 2, 1980
    Assignee: Mitsubishi Chemical Industries, Limited
    Inventors: Yoshiharu Morita, Kenzo Omata, Junichi Ohya, Kazuo Wagatsuma, Tadashi Shirasaka
  • Amino acid derivatives of 6-(2-amino-2-arylacetamido) penicillanic acids
    Patent number: 4179437
    Abstract: Amino acid derivatives of 6-(2-amino-2-arylacetamido) penicillanic acids are prepared and shown to be useful as antibacterial agents.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: December 18, 1979
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Yoshiharu Morita, Kenzo Omata, Junichi Ohya, Kazuo Wagatsuma, Tadashi Shirasaka
  • Amino acid derivatives of 6-(2-amino-2-arylacetamido)penicillanic acids
    Patent number: 4111932
    Abstract: Amino acid derivatives of 6-(2-amino-2-arylacetamido)penicillanic acids are prepared and shown to be useful as antibacterial agents.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: September 5, 1978
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Yoshiharu Morita, Kenzo Omata, Junichi Ohya, Kazuo Wagatsuma, Tadashi Shirasaka