Patents by Inventor Akihiko Shibuya

Akihiko Shibuya 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: 20150298480
    Abstract: A base paper for a decorative laminate has a hiding power and is produced without undergoing a sizing treatment. The base paper is used as a surface decorative material of a thermosetting resin decorative laminate. The hiding power refers to properties of hiding a hue of the background and hue unevenness when processed into a decorative laminate. In a base paper for a decorative laminate for inkjet printing, at least one neutral water-soluble metal salt selected from the group consisting of calcium chloride, magnesium chloride, magnesium sulfate and calcium acetate is externally added to at least a printing surface (front surface) in an amount of from 0.5 to 3.0 g/m2 in terms of a dry adhesion amount (solid content) of the water-soluble metal salt.
    Type: Application
    Filed: November 27, 2013
    Publication date: October 22, 2015
    Applicant: KJ SPECIALTY PAPER Co., Ltd.
    Inventors: Takuya Mizuno, Akihiko Shibuya
  • Publication number: 20060122700
    Abstract: Single-piece type intraocular lens includes a stepped part provided in a boundary between an optic portion 1 and support portions in the posterior 1b of the optic portion 1, in such a way that the surface of a part shifting to the region of the support portion from the region of the optic portion shifts suddenly toward the anterior of the optic portion.
    Type: Application
    Filed: April 28, 2004
    Publication date: June 8, 2006
    Applicant: HOYA CORPORATION
    Inventors: Daijiro Kurosaka, Akihiko Shibuya, Kikuo Mitomo, Tomomitsu Tatsuishi
  • Patent number: 6585768
    Abstract: A one-piece intraocular lens having an optic portion and a haptic portion, the optic portion being formed of a copolymer obtained by copolymerization of predetermined amounts of 2-[2-(perfluorooctyl)ethoxy]-1-methylethyl (meth)acrylate, 2-phenylethyl (meth)acrylate, alkyl (meth)acrylate and a crosslinking monomer, the haptic portion being formed of polymethyl methacrylate, a process for the production thereof, and a soft intraocular lens having an optic portion and a haptic portion formed of a soft material, the haptic portion having a bendable portion having specific functions, the one-piece intraocular lens being insertable into an eye through a small incision with the optic portion being bent, the soft intraocular lens permitting the prevention of the deformation of the soft optic portion caused by the shrink of a capsule when the soft intraocular lens is inserted into an eye.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: July 1, 2003
    Assignee: Hoya Healthcare Corporation
    Inventors: Migio Hamano, Akihiko Shibuya, Takuji Yamaya
  • Publication number: 20020188352
    Abstract: A one-piece intraocular lens having an optic portion and a haptic portion, the optic portion being formed of a copolymer obtained by copolymerization of predetermined amounts of 2-[2-(perfluorooctyl)ethoxy]-1-methylethyl (meth)acrylate, 2-phenylethyl (meth)acrylate, alkyl (meth)acrylate and a crosslinking monomer, the haptic portion being formed of polymethyl methacrylate, a process for the production thereof, and a soft intraocular lens having an optic portion and a haptic portion formed of a soft material, the haptic portion having a bendable portion having specific functions, the one-piece intraocular lens being insertable into an eye through a small incision with the optic portion being bent, the soft intraocular lens permitting the prevention of the deformation of the soft optic portion caused by the shrink of a capsule when the soft intraocular lens is inserted into an eye.
    Type: Application
    Filed: July 20, 1999
    Publication date: December 12, 2002
    Inventors: MIGIO HAMANO, AKIHIKO SHIBUYA, TAKUJI YAMAYA
  • Patent number: 5925294
    Abstract: A one-piece intraocular lens made entirely of three-dimensionally crosslinked polymethyl methacrylate is prepared by selectively press-stretching a lens blank at a temperature of 125 to 140.degree. C. in those areas around the periphery of the central effective optic area and from which the haptic portions are formed rendering areas more robust and less prone to fracture while the central effective optic area is not press-stretched. The lenses are durable to YAG laser irradiation.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: July 20, 1999
    Assignee: Hoya Corporation
    Inventor: Akihiko Shibuya
  • Patent number: 5876441
    Abstract: A one-piece intraocular lens made entirely of three-dimensionally crosslinked polymethyl methacrylate is described. The lens is made from a lens blank which is selectively press-stretched in those areas around the periphery of the central effective optic area and from which the haptic portions are formed rendering areas more robust and less prone to fracture while the central effective optic area is not press-stretched. The lenses are durable to YAG laser irradiation.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: March 2, 1999
    Assignee: Hoya Corporation
    Inventor: Akihiko Shibuya
  • Patent number: 5262492
    Abstract: Siloxane-modified polyester resins are disclosed. These resins comprise a copolymer of a siloxane compound, which contains at least one active hydrogen atom, and a lactone compound. The copolymer is substantially free of unreacted siloxane compound. The siloxane-modified polyester resins are useful for the production of heat-sensitive recording material, magnetic recording media and release agents. Processes for the production of the siloxane-modified polyester resins are also disclosed.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: November 16, 1993
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.
    Inventors: Kazuyuki Hanada, Iwao Misaizu, Akihiko Shibuya, Katsumi Kuriyama
  • Patent number: 5068295
    Abstract: A water and oil repellant contains a copolymer of a first vinyl monomer having a perfluoroalkyl group, a second vinyl monomer having a polyorganosiloxane chain and a third vinyl monomer having an isocyanate group or blocked isocyanate group as essential components. As an alternative, a water and oil repellant contains a copolymer of a first vinyl monomer having a polyorganosiloxane chain and a second vinyl monomer having an isocyanate group or blocked isocyanate group, in combination with a water and oil repellant compound having a perfluoroalkyl group.
    Type: Grant
    Filed: February 9, 1990
    Date of Patent: November 26, 1991
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.
    Inventors: Iwao Misaizu, Kazuyuki Hanada, Akihiko Shibuya, Katsumi Kuriyama