Patents by Inventor Tokiyo Minakuchi

Tokiyo Minakuchi 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).

  • Process for producing inorganic porous material in a capillary
    Patent number: 6562744
    Abstract: Inorganic porous materials contained in a confined space with at least one dimension of less than 1 mm, which are in liquid tight contact with the walls of said confined space. Preferred as the confined space are capillaries. Articles contained such materials and methods for making them in the confined space are described.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: May 13, 2003
    Assignee: Merck Patent GmbH
    Inventors: Kazuki Nakanishi, Naohiro Soga, Tokiyo Minakuchi
  • Method for producing porous inorganic materials
    Patent number: 6207098
    Abstract: The present invention relates to a process for producing inorganic porous materials, mainly composed of glass or glass-ceramic components. The glass or glass-ceramic components can have interconnected continuous macropores with a median diameter larger than 0.1 &mgr;m, and mesopores in the walls of said macropores, said mesopores having a median diameter between 2 and 100 nm. The process can include dissolving a water-soluble polymer or some other pore forming agent and a precursor for a matrix dissolving agent in a medium for mixing with a metalorganic compound.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: March 27, 2001
    Assignee: Merck Patent GmbH
    Inventors: Kazuki Nakanishi, Naohiro Soga, Tokiyo Minakuchi