Patents by Inventor Ituo Orihara

Ituo Orihara 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).

  • Treatment of NF.sub.3 -containing gases
    Patent number: 5906797
    Abstract: A waste gas stream containing toxic NF.sub.3 and optionally other gases, such as acidic fluoride gases, for example, HF, SiF.sub.4, MoF.sub.6 and WF.sub.6 is first treated with particles or ribbons of a Cr-containing Fe alloy at about 300-600.degree. C. to remove the NF.sub.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: May 25, 1999
    Assignee: Kanto Denka Kogyo Co., Ltd.
    Inventors: Ituo Orihara, Moriyuki Fukushima, Eisaku Mogi, Shiro Yamashita
  • Synthetic resin composition
    Patent number: 4041235
    Abstract: A significant improvement in thermal stability and decreased gas permeability and water vapor transmission of vinylidene chloride copolymer resin are achieved by the presence of about 0.5 -- about 10% by weight of glycidyl methacrylate as an internal heat stabilizer in the polymer chain.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: August 9, 1977
    Assignee: Kanto Denka Kogyo Co., Ltd.
    Inventors: Akira Suzuki, Ituo Orihara, Akira Ishida