Patents by Inventor Tsuneo Hoki

Tsuneo Hoki 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).

  • Patent number: 9322958
    Abstract: Silicone hydrogel contact lenses are provided which have reduced modulus and contact angle properties, and which have acceptable wettabilities for use in daily wear and extended or continuous wear applications.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: April 26, 2016
    Assignee: CooperVision International Holding Company, LP
    Inventors: Arthur Back, Junichi Iwata, Tsuneo Hoki, Seiichiro Ikawa
  • Publication number: 20150219795
    Abstract: Silicone hydrogel contact lenses are provided which have reduced modulus and contact angle properties, and which have acceptable wettabilities for use in daily wear and extended or continuous wear applications.
    Type: Application
    Filed: January 14, 2013
    Publication date: August 6, 2015
    Inventors: Arthur Back, Junichi Iwata, Tsuneo Hoki, Seiichirou Ikawa
  • Patent number: 8637621
    Abstract: A hydrogel soft contact lens which is superior in extended-wearability, lens movement, wear comfort, and which does not adhere to a cornea when worn is provided. The lens provided can be a silicone hydrogel contact lens which contains units of hydrophilic siloxane monomers and amide-group-containing monomers having an N-vinyl group.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: January 28, 2014
    Assignee: CooperVision International Holding Company, LP
    Inventors: Junichi Iwata, Tsuneo Hoki, Seiichirou Ikawa
  • Patent number: 8614261
    Abstract: Ophthalmically compatible contact lenses include lens bodies configured for placement on a cornea of an animal or human eye. The lens bodies are made of a hydrophilic silicon-containing polymeric material. The lens bodies have oxygen permeabilities, water content, surface wettabilities, flexibilities, and/or designs to be worn by a lens wearer even during sleep. The present lenses can be worn on a daily basis, including overnight, or can be worn for several days, such as about thirty days, without requiring removal or cleaning.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: December 24, 2013
    Assignee: CooperVision International Holding Company LP
    Inventors: Junichi Iwata, Tsuneo Hoki, Seiichirou Ikawa, Arthur Back
  • Publication number: 20120252925
    Abstract: Ophthalmically compatible contact lenses include lens bodies configured for placement on a cornea of an animal or human eye. The lens bodies are made of a hydrophilic silicon-containing polymeric material. The lens bodies have oxygen permeabilities, water content, surface wettabilities, flexibilities, and/or designs to be worn by a lens wearer even during sleep. The present lenses can be worn on a daily basis, including overnight, or can be worn for several days, such as about thirty days, without requiring removal or cleaning.
    Type: Application
    Filed: March 26, 2012
    Publication date: October 4, 2012
    Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LP
    Inventors: Junichi Iwata, Tsuneo Hoki, Seiichirou Ikawa, Arthur Back
  • Publication number: 20110211158
    Abstract: A mold for producing a soft contact lens, wherein the mold is capable of forming both front and rear surfaces of the lens from a surface of the mold during polymerization of a monomer composition.
    Type: Application
    Filed: December 3, 2010
    Publication date: September 1, 2011
    Inventors: Junichi Iwata, Tsuneo Hoki, Seiichirou Ikawa
  • Publication number: 20060211789
    Abstract: A mold for producing a soft contact lens, wherein the mold is capable of forming both front and rear surfaces of the lens from a surface of the mold during polymerization of a monomer composition.
    Type: Application
    Filed: May 22, 2006
    Publication date: September 21, 2006
    Applicant: ASAHIKASEI AIME CO., LTD.
    Inventors: Junichi Iwata, Tsuneo Hoki, Seiichirou Ikawa
  • Publication number: 20060063852
    Abstract: Ophthalmically compatible contact lenses include lens bodies configured for placement on a cornea of an animal or human eye. The lens bodies are made of a hydrophilic silicon-containing polymeric material. The lens bodies have oxygen permeabilities, water content, surface wettabilities, flexibilities, and/or designs to be worn by a lens wearer even during sleep. The present lenses can be worn on a daily basis, including overnight, or can be worn for several days, such as about thirty days, without requiring removal or cleaning.
    Type: Application
    Filed: August 26, 2005
    Publication date: March 23, 2006
    Applicants: Asahikasei Aime Co. Ltd., CooperVision, Inc.
    Inventors: Junichi Iwata, Tsuneo Hoki, Seiichirou Ikawa, Arthur Back
  • Patent number: 6867245
    Abstract: The present invention relates to a soft contact lens, and provides a contact lens which shows small and stable contact angle to water at its surface in water as well as in air, little deposition in wearing, high oxygen permeability, no adhesion of lens to a cornea and superior extended-wearing characteristics. The present invention provides a hydrogel soft contact lens which has contact angle at a lens surface in a range of 10-50° by the captive bubble method in water and 30-90° by the sessile drop method in air, oxygen permeability of not less than 30 and water content of not less than 5%, and also a hydrogel soft contact lens consisting of a polymer comprising a hydrophilic siloxanyl monomer shown by a specified general formula.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: March 15, 2005
    Assignee: Asahikasei Aime Co., Ltd.
    Inventors: Junichi Iwata, Tsuneo Hoki, Seiichirou Ikawa
  • Publication number: 20040192872
    Abstract: The present invention relates to a soft contact lens, and provides a contact lens which shows small and stable contact angle to water at its surface in water as well as in air, little deposition in wearing, high oxygen permeability, no adhesion of lens to a cornea and superior extended-wearing characteristics. The present invention provides a hydrogel soft contact lens which has contact angle at a lens surface in a range of 10-50° by the captive bubble method in water and 30-90° by the sessile drop method in air, oxygen permeability of not less than 30 and water content of not less than 5%, and also a hydrogel soft contact lens consisting of a polymer comprising a hydrophilic siloxanyl monomer shown by a specified general formula.
    Type: Application
    Filed: March 19, 2004
    Publication date: September 30, 2004
    Applicant: ASAHIKASEI AIME CO., LTD
    Inventors: Junichi Iwata, Tsuneo Hoki, Seiichirou Ikawa
  • Publication number: 20020016383
    Abstract: The present invention relates to a soft contact lens, and provides a contact lens which shows small and stable contact angle to water at its surface in water as well as in air, little deposition in wearing, high oxygen permeability, no adhesion of lens to a cornea and superior extended-wearing characteristics. The present invention provides a hydrogel soft contact lens which has contact angle at a lens surface in a range of 10-50° by the captive bubble method in water and 30-90° by the sessile drop method in air, oxygen permeability of not less than 30 and water content of not less than 5%, and also a hydrogel soft contact lens consisting of a polymer comprising a hydrophilic siloxanyl monomer shown by a specified general formula.
    Type: Application
    Filed: July 2, 2001
    Publication date: February 7, 2002
    Inventors: Junichi Iwata, Tsuneo Hoki, Seiichirou Ikawa
  • Patent number: 4652590
    Abstract: Ethylenic polymer/styrenic polymer blend foams are prepared from blends of (1) an ethylenic polymer resin having a density of from 0.915 to 0.930 g/cm.sup.3 and a melt index of from 0.2 to 2.6 grams/10 minutes and (2) a styrenic polymer resin having a melt flow rate of from 1.4 to 18 grams/10 minutes. Foams having an excellent overall combination of properties are obtained (1) when the density, D, of such foams is in the range of from 10 to 40 kg/m.sup.3 and the 25 percent compressive strength, F, in kg/cm.sup.2 is from 0.013D.sup.1.15 to 0.024D.sup.1.15 and (2) when the ratio, R, of the melt flow rate of the styrenic polymer employed divided by the melt index of the ethylenic polymer employed is from 7 to 90 and the content, Y, of the styrenic polymer in said blend, in parts by weight based upon 100 parts by weight of the ethylenic polymer resin, satisfies the following requirement:10.ltoreq.Y.ltoreq.3.94.7+1.18R-294.1 log (D).
    Type: Grant
    Filed: December 14, 1984
    Date of Patent: March 24, 1987
    Assignee: The Dow Chemical Company
    Inventors: Tsuneo Hoki, Nobuo Miura
  • Patent number: 4629745
    Abstract: An expandable polyetherimide composition comprising (A) polyetherimide and (B) a blowing agent containing in the said agent at least 10% by weight of a volatile organic foaming component having a solubility parameter [.delta..sub.c ] satisfying the following equation.delta..sub.p -1.14.ltoreq..delta..sub.c .ltoreq..delta..sub.p +1.14,wherein .delta..sub.p is the solubility parameter of the polyetherimide, a dielectric constant of not less than 15, and a boiling point at normal pressure of not higher than 80.degree. C.; and a foam material obtained therefrom.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: December 16, 1986
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Tsuneo Hoki, Yutaka Matsuki
  • Patent number: 4369257
    Abstract: Substantially closed-cell aliphatic olefin polymer foams having improved dimensional stability are provided by the inclusion therein of from 0.1 to 10 weight percent, based upon the olefin polymer, of certain naphthyl amine compounds.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: January 18, 1983
    Assignee: Asahi-Dow Limited
    Inventors: Tsuneo Hoki, Minoru Hisamatsu
  • Patent number: 4359539
    Abstract: Substantially closed-cell aliphatic olefin polymer foams having improved dimensional stability are provided by the inclusion therein of from 0.1 to 10 weight percent, based upon the olefin polymer, of certain higher aliphatic hydrocarbyl ether, ester or anhydride compounds.
    Type: Grant
    Filed: January 22, 1982
    Date of Patent: November 16, 1982
    Assignee: Asahi-Dow Limited
    Inventors: Tsuneo Hoki, Yutaka Matsuki
  • Patent number: 4345041
    Abstract: Substantially closed-cell aliphatic olefin polymer foams having improved dimensional stability are provided by the inclusion of from 0.1 to 10 weight percent, based on olefin polymer, of an N-higher aliphatic hydrocarbyl substituted amide of a C.sub.1 -C.sub.8 aliphatic carboxylic acid.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: August 17, 1982
    Assignee: Asahi-Dow Limited
    Inventors: Tsuneo Hoki, Yutaka Matsuki
  • Patent number: 4343911
    Abstract: The dimensional stability, especially at elevated temperatures such as 70.degree. C., of thermoplastic resin foams, such as those of aliphatic olefin polymers, is substantially improved by the inclusion therein of from 0.01 to 5 weight percent, based upon said resin, of certain benzylideneaniline derivatives, azobenzene derivatives, azooxybenzene derivatives and the like.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: August 10, 1982
    Assignee: Asahi-Dow Limited
    Inventors: Tsuneo Hoki, Yutaka Matsuki
  • Patent number: 4331777
    Abstract: Substantially closed-cell aliphatic olefin polymer foams having improved dimensional stability are provided by the inclusion therein of from 0.1 to 10 weight percent, based upon the olefin polymer, of certain naphthyl amine compounds.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: May 25, 1982
    Assignee: Asahi-Dow Limited
    Inventors: Tsuneo Hoki, Minoru Hisamatsu
  • Patent number: 4327193
    Abstract: Substantially closed-cell aliphatic olefin polymer foams having improved dimensional stability are provided by the inclusion therein of from 0.1 to 10 weight percent, based upon the olefin polymer, of certain higher aliphatic hydrocarbyl ether, ester or anhydride compounds.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: April 27, 1982
    Assignee: Asahi-Dow Limited
    Inventors: Tsuneo Hoki, Yutaka Matsuki
  • Patent number: 4289857
    Abstract: The dimensional stability of closed-cell synthetic polymer foams can be notably improved by the incorporation therein, during their preparation, of from about 0.1 to about 10 percent by weight (based upon the weight of the synthetic resin) of certain borate or phosphinate glycol ester compounds such as, for example, tri(1-stearyl-glycero)borate, tri(monostearylpolyoxyethyleneglycol)borate, di(1-stearylglycero)phosphinate, and the like.
    Type: Grant
    Filed: July 31, 1980
    Date of Patent: September 15, 1981
    Assignee: Asahi-Dow Limited
    Inventors: Tsuneo Hoki, Nobuo Miura, Hiroshi Watanabe