Patents by Inventor Isamu Komaru

Isamu Komaru 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).

  • Patent number: 4224073
    Abstract: An active silicon carbide powder containing a boron component, which contains the boron component as boron carbide or as a solid solution thereof in a uniformly dispersed state in an amount of about 0.2 to 10 wt %, calculated as boron carbide and a process for producing the same.
    Type: Grant
    Filed: August 4, 1978
    Date of Patent: September 23, 1980
    Assignee: Nippon Crucible Co., Ltd.
    Inventors: Tadao Sasaki, Takasi Natori, Isamu Komaru
  • Patent number: 4217335
    Abstract: A process for producing a .beta.-silicon carbide powder is disclosed wherein a ternary mixture of carbon, silicon and silica powders mixed in amounts falling within the region defined by the points O, P, Q and R in the FIGURE are reacted in an oxidizing atmosphere.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: August 12, 1980
    Assignee: Nippon Crucible Co., Ltd.
    Inventors: Tadao Sasaki, Isamu Komaru, Ryuzo Yoshioka