Patents by Inventor Yuichiro Wakana

Yuichiro Wakana 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).

  • Composition for plug in base-isolated structure, plug for base-isolated structure and base-isolated structure
    Patent number: 8668968
    Abstract: This invention relates to a composition for plug in a base-isolated structure capable of providing a plug for base-isolated structure having sufficient damping performance, displacement following property and the like, and more particularly to a composition for plug in a base-isolated structure characterized by including powder and an elastomer composition formed by compounding an elastomer component with a reinforcing filler.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: March 11, 2014
    Assignee: Bridgestone Corporation
    Inventors: Yuichiro Wakana, Shigenobu Suzuki, Hironori Hamazaki, Hideaki Kato
  • COMPOSITION FOR PLUG IN BASE-ISOLATED STRUCTURE, PLUG FOR BASE-ISOLATED STRUCTURE AND BASE-ISOLATED STRUCTURE
    Publication number: 20100255233
    Abstract: This invention relates to a composition for plug in a base-isolated structure capable of providing a plug for base-isolated structure having sufficient damping performance, displacement following property and the like, and more particularly to a composition for plug in a base-isolated structure characterized by including powder and an elastomer composition formed by compounding an elastomer component with a reinforcing filler.
    Type: Application
    Filed: October 23, 2008
    Publication date: October 7, 2010
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yuichiro Wakana, Shigenobu Suzuki, Hironori Hamazaki, Hideaki Kato
  • Process for forming centipede polymer gels
    Patent number: 7429393
    Abstract: A process that enables the formation of a high damping, soft polymer gel includes reacting a maleimide copolymer with a maleated polyalkylene and an alkyl diamine under substantially dry conditions sufficient to form a polyalkylene-grafted maleimide copolymer product which then is dispersed with an extender sufficient to form the gel. The steps can be carried out sequentially in a high shear mixer without the need for intermediate steps of cooling and grinding the reaction product of one step before proceeding to the next.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: September 30, 2008
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor F. Foltz, Terrence E. Hogan, William M. Cole, Naruhiko Mashita, Yuichiro Wakana, Tadashi Utsunomiya
  • Process for forming centipede polymer gels
    Publication number: 20030091527
    Abstract: A process that enables the formation of a high damping, soft polymer gel includes reacting a maleimide copolymer with a maleated polyalkylene and an alkyl diamine under substantially dry conditions sufficient to form a polyalkylene-grafted maleimide copolymer product which then is dispersed with an extender sufficient to form the gel. The steps can be carried out sequentially in a high shear mixer without the need for intermediate steps of cooling and grinding the reaction product of one step before proceeding to the next.
    Type: Application
    Filed: July 13, 2001
    Publication date: May 15, 2003
    Inventors: Xiaorong Wang, Victor F. Foltz, Terrence E. Hogan, William M. Cole, Naruhiko Mashita, Yuichiro Wakana, Tadashi Utsunomiya
  • Method of producing a graft copolymer
    Publication number: 20010021743
    Abstract: A method of producing a high-performance graft copolymer having both low-creep characteristics and damping properties is disclosed, which comprises:
    Type: Application
    Filed: December 28, 2000
    Publication date: September 13, 2001
    Inventors: Yuichiro Wakana, Naruhiko Mashita, Yasuo Horikawa, Tadashi Utunomiya, Tuyoshi Hamanaka
  • Polymeric reticulated structure and method for making
    Patent number: 5716997
    Abstract: A polymeric reticulated structure is prepared by mixing an ethylene-propylene copolymer having an ethylene content of at least 60% by weight or a thermoplastic block copolymer terminated with a crystalline ethylene block with a low molecular weight material. The low molecular weight material is trapped in the three-dimensional continuous network the copolymer forms.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: February 10, 1998
    Assignee: Bridgestone Corporation
    Inventors: Shinichi Toyosawa, Naruhiko Mashita, Yasushi Imai, Takahiro Matsuse, Yuichiro Wakana, Yoshihide Fukahori