Patents by Inventor Yasushi Ooyama

Yasushi Ooyama 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).

  • Publication number: 20200179662
    Abstract: To provide a new balloon catheter enabling formation of, with high dimensional accuracy and excellent shape adaptability with respect to a balloon, an additional structure such as a blade and a reinforcement member to be additionally provided to the balloon. In this balloon catheter 10 provided with an expandable/contractible balloon 14 on the distal end side of a catheter 12, an additional structure 36 having a prescribed pattern is formed through electroforming or the like directly onto an inner circumferential surface 34 and/or an outer circumferential surface 82 of the balloon 14.
    Type: Application
    Filed: February 18, 2020
    Publication date: June 11, 2020
    Inventors: Yoshihiko SANO, Yasushi OOYAMA, Katsuhiro HIEJIMA
  • Patent number: 10322572
    Abstract: An adhesive agent comprising a condensation resin having a structural unit obtained by polycondensing a polymerizable monomer containing a monomer (A) having 2 or more carboxyl groups and a monomer (B) having 2 or more amino groups, and meeting at least one of the following (1) and (2): (1) at least one selected from the group consisting of the monomer (A), an anhydride of the monomer (A), and the monomer (B) is liquid at 25° C.; and (2) the condensation resin has a polyoxyalkanediyl group.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: June 18, 2019
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Katsuyuki Masuda, Takehiro Fukuyama, Eiichi Shinada, Masashi Okoshi, Kazunori Yamamoto, Masatoshi Yamaguchi, Yasushi Ooyama, Yuuki Yanagita, Mitsuo Katayose
  • Publication number: 20190091046
    Abstract: A stent (32) configured to be placed in a body lumen and having a tubular shape formed by a structure that is expandable and contractible skeleton (18, 19) in a radial direction, the skeleton (18, 19) having a heteromorphic structure due to changes of a cross section shape thereof in a thickness direction. A stent (10) that is expandable and contractible in the radial direction while being configured to be placed in a body lumen, the stent (10) having a heteromorphic tubular shape, a cross section shape of which changes in a lengthwise direction, and having a metal skeleton (18, 19) formed by at least one of electroforming and etching.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 28, 2019
    Inventors: Yoshihiko SANO, Yasushi OOYAMA, Katsuhiro HIEJIMA, Kouji AKIMOTO
  • Publication number: 20190030873
    Abstract: The present invention relates to an aerogel laminate having a structure in which a resin layer, a substrate and an aerogel layer are laminated in this order.
    Type: Application
    Filed: January 24, 2017
    Publication date: January 31, 2019
    Inventors: Satoshi TAKAYASU, Tomohiko KOTAKE, Masato MIYATAKE, Tatsuya MAKINO, Kaito KOGURE, Harumi NEGISHI, Yasushi OOYAMA
  • Patent number: 10137014
    Abstract: A stent (32) configured to be placed in a body lumen and having a tubular shape formed by a structure that is expandable and contractible skeleton (18, 19) in a radial direction, the skeleton (18, 19) having a heteromorphic structure due to changes of a cross section shape thereof in a thickness direction. A stent (10) that is expandable and contractible in the radial direction while being configured to be placed in a body lumen, the stent (10) having a heteromorphic tubular shape, a cross section shape of which changes in a lengthwise direction, and having a metal skeleton (18, 19) formed by at least one of electroforming and etching.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: November 27, 2018
    Assignee: NIPRO Corporation
    Inventors: Yoshihiko Sano, Yasushi Ooyama, Katsuhiro Hiejima, Kouji Akimoto
  • Publication number: 20180043141
    Abstract: Provided is a new balloon catheter enabling formation of, with high dimensional accuracy and excellent shape adaptability with respect to a balloon, an additional structure such as a blade and/or a reinforcement member on the balloon. The balloon catheter includes a shaft and an expandable/contractible balloon on the distal end side of the shaft, with an additional structure having a prescribed pattern being formed through electroforming or the like directly onto an inner circumferential surface and/or an outer circumferential surface of the balloon.
    Type: Application
    Filed: May 12, 2016
    Publication date: February 15, 2018
    Applicant: NIPRO CORPORATION
    Inventors: Yoshihiko SANO, Yasushi OOYAMA, Katsuhiro HIEJIMA
  • Publication number: 20160317331
    Abstract: A stent (32) configured to be placed in a body lumen and having a tubular shape formed by a structure that is expandable and contractible skeleton (18, 19) in a radial direction, the skeleton (18, 19) having a heteromorphic structure due to changes of a cross section shape thereof in a thickness direction. A stent (10) that is expandable and contractible in the radial direction while being configured to be placed in a body lumen, the stent (10) having a heteromorphic tubular shape, a cross section shape of which changes in a lengthwise direction, and having a metal skeleton (18, 19) formed by at least one of electroforming and etching.
    Type: Application
    Filed: December 16, 2014
    Publication date: November 3, 2016
    Inventors: Yoshihiko SANO, Yasushi OOYAMA, Katsuhiro HIEJIMA, Kouji AKIMOTO
  • Publication number: 20130008593
    Abstract: An adhesive agent comprising a condensation resin having a structural unit obtained by polycondensing a polymerizable monomer containing a monomer (A) having 2 or more carboxyl groups and a monomer (B) having 2 or more amino groups, and meeting at least one of the following (1) and (2): (1) at least one selected from the group consisting of the monomer (A), an anhydride of the monomer (A), and the monomer (B) is liquid at 25° C.; and (2) the condensation resin has a polyoxyalkanediyl group.
    Type: Application
    Filed: April 12, 2012
    Publication date: January 10, 2013
    Inventors: Katsuyuki MASUDA, Takehiro Fukuyama, Eiichi Shinada, Masashi Okoshi, Kazunori Yamamoto, Masatoshi Yamaguchi, Yasushi Ooyama, Yuuki Yanagita, Mitsuo Katayose
  • Patent number: 7932341
    Abstract: An object of the present invention is to provide a polypropylene polymer film superior in convenience in handling that does not generate troubles such as wrinkling, elongation or breakage during processing at a high temperature of 80° C. to 120° C., independently of the conveying method used in the drying step, and an adhesive film having the polypropylene polymer film as its carrier. Provided are a polypropylene polymer film, characterized by having a tensile modulus of 300 MPa to 1,000 MPa under an atmosphere at 23° C. and 60 MPa to 120 MPa under an atmosphere at 120° C. and an adhesive film containing it as the carrier.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: April 26, 2011
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Michihiro Shimane, Osamu Yamamoto, Yasushi Ooyama
  • Publication number: 20080020204
    Abstract: An object of the present invention is to provide a polypropylene polymer film superior in convenience in handling that does not generate troubles such as wrinkling, elongation or breakage during processing at a high temperature of 80° C. to 120° C., independently of the conveying method used in the drying step, and an adhesive film having the polypropylene polymer film as its carrier. Provided are a polypropylene polymer film, characterized by having a tensile modulus of 300 MPa to 1,000 MPa under an atmosphere at 23° C. and 60 MPa to 120 MPa under an atmosphere at 120° C. and an adhesive film containing it as the carrier.
    Type: Application
    Filed: November 24, 2005
    Publication date: January 24, 2008
    Inventors: Michihiro Shimane, Osamu Yamamoto, Yasushi Ooyama