Patents by Inventor Kazuo Toubo

Kazuo Toubo 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).

  • Polymeric casing for fluid machines and pumps
    Patent number: 5046922
    Abstract: This invention is directed to a fluid pump containing a structural member, such as casing, which the fluid contacts as it enters the pump, and to a structural member having sufficient mechanical strength and flexibility for use in a fluid pump, such as a casing, which is made of a ring-opened polymer of a norbornene-type monomer containing an effective amount of an elastomer, the structural member has heat distortion temperature of over 120.degree. C., elongation at break of 15 to 80%, and flexural modulus of elasticity of 170 kg/mm.sup.2 or above.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: September 10, 1991
    Assignees: Nippon Zeen Co., Ltd., Ebara Corporation
    Inventors: Toshio Nakamura, Yoshimi Soeda, Shuichi Mitsuhori, Kazuo Toubo