Patents by Inventor Junichi Iwata

Junichi Iwata 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: 20120184698
    Abstract: PROBLEM TO BE SOLVED To provide an ophthalmic lens, which can be more safely worn, that is, to provide a material, which is transparent and has high oxygen permeability and a high hydrophilic property, and to provide a novel monomer to be a raw material thereof. SOLUTION A hydrophilic polysiloxane macromonomer contains polyoxyethylene as a hydrophilic side chains in a polysiloxane main chain, wherein transparency, oxygen permeability, and hydrophilic properties of the material are controlled by regulating the length of the polysiloxane main chain, the length of the hydrophilic polyoxyethylene side chains, and the number of the side chains.
    Type: Application
    Filed: March 5, 2012
    Publication date: July 19, 2012
    Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LP
    Inventors: Hiroyuki Ueyama, Seiichiro Ikawa, Junichi Iwata
  • Publication number: 20120151612
    Abstract: The present invention discloses a novel TGF-? signaling mechanism implicated in craniofacial malformation as well as methods and compositions for treating craniofacial malformation utilizing knowledge of the mechanism. Methods of the invention generally comprises administering an effective amount of a TGF-? inhibitor to a subject in need of the treatment. Also disclosed are methods for treating craniofacial malformation by administering Tgf-?, Tgf-?RIII, p38 MAPK inhibitor or neutralizing antibodies to a subject. Also disclosed is a diagnostic method for diagnosing patients at risk of developing craniofacial malformation by determining the level of Tgf-?2 and ectopic p38 MAPK activation. Compounds useful for treating craniofacial malformation may also be discovered by using animal models of the present invention.
    Type: Application
    Filed: November 14, 2011
    Publication date: June 14, 2012
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Yang CHAI, Junichi IWATA
  • Patent number: 8129442
    Abstract: A hydrophilic polysiloxane macromonomer containing polyoxyethylene as a hydrophilic side chains pendant to a polysiloxane main chain for imparting transparency, oxygen permeability, and hydrophilic properties to a contact lens is disclosed. The properties of the material are controlled by regulating the length of the polysiloxane main chain, the length of the hydrophilic polyoxyethylene side chains, and the number of the side chains.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: March 6, 2012
    Assignee: CooperVision International Holding Company, LP
    Inventors: Hiroyuki Ueyama, Seiichiro Ikawa, Junichi Iwata
  • 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: 20090234089
    Abstract: Problem to be Solved To provide an ophthalmic lens, which can be more safely worn, that is, to provide a material, which is transparent and has high oxygen permeability and a high hydrophilic property, and to provide a novel monomer to be a raw material thereof. Solution A hydrophilic polysiloxane macromonomer contains polyoxyethylene as a hydrophilic side chains in a polysiloxane main chain, wherein transparency, oxygen permeability, and hydrophilic properties of the material are controlled by regulating the length of the polysiloxane main chain, the length of the hydrophilic polyoxyethylene side chains, and the number of the side chains.
    Type: Application
    Filed: February 6, 2009
    Publication date: September 17, 2009
    Applicant: ASAHI KASEI AIME CO., LTD.
    Inventors: Hiroyuki UEYAMA, Seiichiro IKAWA, Junichi IWATA
  • 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: 5578415
    Abstract: An optical recording material comprising: a thin film or membrane of a hydrophobic binding agent; and metallic particles having a diameter of 0.003 .mu.m to 3 .mu.m dispersed in said film or membrane wherein the density of said metallic particles is higher near at least one surface of said film or membrane as compared with another portion of said film or membrane, each metallic particle having a nucleus and an outer coating, said outer coating consisting of at least one metal having a melting point of 250.degree. C. to 1800.degree. C. and a thermal conductivity at 0.degree. C. of 5 W.multidot.m.sup.-1 .multidot.K.sup.-1 to 450 W.multidot.m.sup.-1 .multidot.K.sup.-1 wherein the reflectivity of the surface of said film or membrane where the density of said metallic particle is higher is 10 to 90%., a method for preparing the optical recording material and an optical card containing the optical recording material.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: November 26, 1996
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Yoshio Hayashi, Shuichiro Ogawa, Junichi Iwata