Patents by Inventor Sho Funayama

Sho Funayama 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: 11207345
    Abstract: Provided is a chondroitin sulfate derivative having a cross-linked structure through a group in a polyvalent amine. Also provided is a composition containing the chondroitin sulfate derivative. Also provided are an agent and method for the treatment of an eye disease, the agent and method having a therapeutic effect on a corneal epithelial disorder and/or dry eye.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: December 28, 2021
    Assignee: SEIKAGAKU CORPORATION
    Inventors: Sho Funayama, Risa Nodera, Takahiro Hatanaka
  • Publication number: 20210052634
    Abstract: Provided is a chondroitin sulfate derivative having a cross-linked structure through a group in a polyvalent amine. Also provided is a composition containing the chondroitin sulfate derivative. Also provided are an agent and method for the treatment of an eye disease, the agent and method having a therapeutic effect on a corneal epithelial disorder and/or dry eye.
    Type: Application
    Filed: June 9, 2020
    Publication date: February 25, 2021
    Applicant: SEIKAGAKU CORPORATION
    Inventors: Sho FUNAYAMA, Risa NODERA, Takahiro HATANAKA
  • Patent number: 10919840
    Abstract: The invention provides a diamine crosslinking agent for acidic polysaccharides consisting of a diamine compound having a primary amino group at both terminals and an ester or thioester bond in the molecule, wherein the number of atom in the linear chain between at least one of the amino groups and the carbonyl carbon in the ester or thioester is 1 to 5; in particular, a diamine crosslinking agent for acidic polysaccharides which is represented by the general formula (I) below: [the symbols in the formula are as described in the specification]; a crosslinked acidic polysaccharide obtained by forming crosslinks by amide bonding between the amino groups in the diamine crosslinking agent and carboxyl groups in an acidic polysaccharide; and a medical material including the crosslinked product.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: February 16, 2021
    Assignee: SEIKAGAKU CORPORATION
    Inventors: Sho Funayama, Yosuke Yasuda, Akihiro Takezawa, Katsuya Takahashi
  • Patent number: 10716804
    Abstract: Provided is a chondroitin sulfate derivative having a cross-linked structure through a group in a polyvalent amine. Also provided is a composition containing the chondroitin sulfate derivative. Also provided are an agent and method for the treatment of an eye disease, the agent and method having a therapeutic effect on a corneal epithelial disorder and/or dry eye.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: July 21, 2020
    Assignee: SEIKAGAKU CORPORATION
    Inventor: Sho Funayama
  • Publication number: 20190365796
    Abstract: Provided is a chondroitin sulfate derivative having a cross-linked structure through a group in a polyvalent amine. Also provided is a composition containing the chondroitin sulfate derivative. Also provided are an agent and method for the treatment of an eye disease, the agent and method having a therapeutic effect on a corneal epithelial disorder and/or dry eye.
    Type: Application
    Filed: August 9, 2019
    Publication date: December 5, 2019
    Applicant: SEIKAGAKU CORPORATION
    Inventors: Sho FUNAYAMA, Risa NODERA, Takahiro HATANAKA
  • Publication number: 20190345312
    Abstract: The invention provides a diamine crosslinking agent for acidic polysaccharides consisting of a diamine compound having a primary amino group at both terminals and an ester or thioester bond in the molecule, wherein the number of atom in the linear chain between at least one of the amino groups and the carbonyl carbon in the ester or thioester is 1 to 5; in particular, a diamine crosslinking agent for acidic polysaccharides which is represented by the general formula (I) below: [the symbols in the formula are as described in the specification]; a crosslinked acidic polysaccharide obtained by forming crosslinks by amide bonding between the amino groups in the diamine crosslinking agent and carboxyl groups in an acidic polysaccharide; and a medical material including the crosslinked product.
    Type: Application
    Filed: March 22, 2019
    Publication date: November 14, 2019
    Applicant: Seikagaku Corporation
    Inventors: Sho Funayama, Yosuke Yasuda, Akihiro Takezawa, Katsuya Takahashi
  • Patent number: 10420796
    Abstract: Provided is a chondroitin sulfate derivative having a cross-linked structure through a group in a polyvalent amine. Also provided is a composition containing the chondroitin sulfate derivative. Also provided are an agent and method for the treatment of an eye disease, the agent and method having a therapeutic effect on a corneal epithelial disorder and/or dry eye.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: September 24, 2019
    Assignee: SEIKAGAKU CORPORATION
    Inventors: Sho Funayama, Risa Nodera, Takahiro Hatanaka
  • Patent number: 10294195
    Abstract: The invention provides a diamine crosslinking agent for acidic polysaccharides consisting of a diamine compound having a primary amino group at both terminals and an ester or thioester bond in the molecule, wherein the number of atom in the linear chain between at least one of the amino groups and the carbonyl carbon in the ester or thioester is 1 to 5; in particular, a diamine crosslinking agent for acidic polysaccharides which is represented by the general formula (I) below: [the symbols in the formula are as described in the specification]; a crosslinked acidic polysaccharide obtained by forming crosslinks by amide bonding between the amino groups in the diamine crosslinking agent and carboxyl groups in an acidic polysaccharide; and a medical material including the crosslinked product.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: May 21, 2019
    Assignee: Seikagaku Corporation
    Inventors: Sho Funayama, Yosuke Yasuda, Akihiro Takezawa, Katsuya Takahashi
  • Publication number: 20170368093
    Abstract: Provided is a chondroitin sulfate derivative having a structure cross-linked with a group in a polyvalent amine. Also provided is a composition containing the chondroitin sulfate derivative. Also provided are an agent and method for the treatment of an eye disease, the agent and method having a therapeutic effect on a corneal epithelial disorder and/or dry eye.
    Type: Application
    Filed: January 15, 2016
    Publication date: December 28, 2017
    Applicant: SEIKAGAKU CORPORATION
    Inventors: Sho FUNAYAMA, Risa NODERA, Takahiro HATANAKA
  • Publication number: 20170001948
    Abstract: The invention provides a diamine crosslinking agent for acidic polysaccharides consisting of a diamine compound having a primary amino group at both terminals and an ester or thioester bond in the molecule, wherein the number of atom in the linear chain between at least one of the amino groups and the carbonyl carbon in the ester or thioester is 1 to 5; in particular, a diamine crosslinking agent for acidic polysaccharides which is represented by the general formula (I) below: [the symbols in the formula are as described in the specification]; a crosslinked acidic polysaccharide obtained by forming crosslinks by amide bonding between the amino groups in the diamine crosslinking agent and carboxyl groups in an acidic polysaccharide; and a medical material including the crosslinked product.
    Type: Application
    Filed: January 30, 2015
    Publication date: January 5, 2017
    Applicant: Seikagaku Corporation
    Inventors: Sho Funayama, Yosuke Yasuda, Akihiro Takezawa, Katsuya Takahashi