Patents by Inventor Hideko Munekata

Hideko Munekata 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).

  • Shock absorber shaft seal
    Patent number: 5664651
    Abstract: A shaft seal suitable for use in gas-filled shock absorbers. The shaft seal (20) includes an annular elastomeric sealing member (34) having a first sealing lip (46) and a second sealing lip (48). The first sealing lip (46) has a frustoconical air-side sealing surface (54) and a series of spaced annular projections (66) contiguous thereto. The second sealing lip (48) has a frustoconical air-side sealing surface (62) and a series of spaced annular grooves (70) contiguous thereto. The first sealing lip (46) provides an excellent lubrication capability whereas the second sealing lip (48) provides a high sealing capability.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: September 9, 1997
    Assignee: NOK Corporation
    Inventors: Takeshi Miura, Hideko Munekata
  • Shaft seal with dust sealing lip
    Patent number: 5649709
    Abstract: A shaft seal (20) suitable for use in automotive shock absorber. The shaft seal (20) includes an annular dust sealing member (36) having a dust sealing lip (56) and an auxiliary rib (60). The auxiliary rib (60) is configured to present a rounded profile (62) having the radius of curvature larger than the radius of curvature of the dust sealing lip (56). The dust sealing lip (56) supported by the auxiliary rib (60) sustains dust scraping action for a prolonged time period to effectively prevent ingress of dust and dirt.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: July 22, 1997
    Assignee: NOK Corporation
    Inventors: Hideko Munekata, Takeshi Miura