Patents by Inventor Shirou Maeda

Shirou Maeda 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).

  • Publication number: 20110207926
    Abstract: A compound represented by formula (1), a tautomer thereof, or a salt of the compound or tautomer, which is useful as a bactericide/disinfectant. In the formula, R1 represents a hydrogen atom, an optionally substituted alkyl group or the like, R2 represents a hydrogen atom or an optionally substituted alkyl group, or alternatively R1 and R2 may combine together with an adjacent nitrogen atom to form an optionally substituted nitrogen-containing heterocyclic group; R4 represents a hydrogen atom or an optionally substituted alkyl group; R3 represents an optionally substituted alkyl group; and R5 and R6 each represents a hydrogen atom or a methyl group, excluding a compound wherein both R2 and R4 represent a hydrogen atom and a compound wherein both R1 and R4 represent a hydrogen atom are excluded.
    Type: Application
    Filed: August 24, 2009
    Publication date: August 25, 2011
    Applicant: HAMARI CHEMICALS, LTD.
    Inventors: Shirou Maeda, Akihisa Maeda
  • Patent number: 7622469
    Abstract: The present invention relates to an antibacterial agent, which comprises, as an active ingredient, a compound represented by the following general formula (1): or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: November 24, 2009
    Assignee: Hamari Chemicals, Ltd.
    Inventors: Shirou Maeda, Toshiko Kita, Kanji Meguro
  • Publication number: 20060180645
    Abstract: A packing container H has a lid HC that can be opened and closed. The lid HC forms part of a double panel, which includes a front panel 1 and an inside panel 4. The front panel 1 can turn on one edge of the double panel. The inside panel 4 includes a top part 4A surrounded by perforations 17. The top part 4A can be stuck on the front panel 1 and subsequently torn from the inside panel 4 so that an opening 20 is formed in the inside panel 4. The lid HC includes the front panel 1 and the top part 4A stuck on this panel. The front panel 1 has a pair of guide flaps 5 formed on both sides thereof. The guide flaps 5 are adjacent to the one edge of the double panel. The guide flaps 5 can guide the lid HC when the lid is opened. The front panel 1 also has an insert tab 11 formed at the edge thereof opposite the one edge. The insert tab 11 can lock the lid HC when the lid is closed.
    Type: Application
    Filed: November 21, 2005
    Publication date: August 17, 2006
    Inventors: Hideshi Takagi, Shirou Maeda, Yutaka Nagakawa
  • Publication number: 20060154928
    Abstract: The present invention relates to an antibacterial agent, which comprises, as an active ingredient, a compound represented by the following general formula (1): or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: December 16, 2003
    Publication date: July 13, 2006
    Inventors: Shirou Maeda, Toshiko Kita, Kanji Meguro