Patents by Inventor Ryousuke KAMAKURA

Ryousuke KAMAKURA 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).

  • Hydraulic shock absorber
    Patent number: 9796236
    Abstract: A hydraulic shock absorber includes: an expansion-side passage and a contraction-side passage that connect an expansion-side chamber with a contraction-side chamber; an expansion-side valve body configured to open or close the expansion-side passage; a contraction-side valve body configured to open or close the contraction-side passage; an expansion-side back-pressure chamber configured to bias the expansion-side valve body; a contraction-side back-pressure chamber configured to bias the contraction-side valve body; a communicating channel communicating with the expansion-side back-pressure chamber through an expansion-side resistance element, and with the contraction-side back-pressure chamber through a contraction-side resistance element; an expansion-side pressure introduction passage connecting the expansion-side chamber with the contraction-side back-pressure chamber; a contraction-side pressure introduction passage connecting the contraction-side chamber with the expansion-side back-pressure chamber; a
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: October 24, 2017
    Assignee: KYB Corporation
    Inventors: Yasuhiro Inagaki, Shinichi Hagidaira, Ryousuke Kamakura
  • HYDRAULIC SHOCK ABSORBER
    Publication number: 20160236533
    Abstract: A hydraulic shock absorber includes: an expansion-side passage and a contraction-side passage that connect an expansion-side chamber with a contraction-side chamber; an expansion-side valve body configured to open or close the expansion-side passage; a contraction-side valve body configured to open or close the contraction-side passage; an expansion-side back-pressure chamber configured to bias the expansion-side valve body; a contraction-side back-pressure chamber configured to bias the contraction-side valve body; a communicating channel that communicates with the expansion-side back-pressure chamber through an expansion-side resistance element, the communicating channel communicating with the contraction-side back-pressure chamber through a contraction-side resistance element; an expansion-side pressure introduction passage that connects the expansion-side chamber with the contraction-side back-pressure chamber; a contraction-side pressure introduction passage that connects the contraction-side chamber wit
    Type: Application
    Filed: October 3, 2014
    Publication date: August 18, 2016
    Applicant: KYB Corporation
    Inventors: Yasuhiro INAGAKI, Shinichi HAGIDAIRA, Ryousuke KAMAKURA