Patents by Inventor Yihua Chang

Yihua Chang 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: 20200087476
    Abstract: A thermoplastic elastomer foam is made by incorporating a gaseous or supercritical blowing agent under pressure into a molten thermoplastic elastomer comprising polymeric polymeric crystalline domains, then releasing the pressure to foam the thermoplastic elastomer.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Inventors: Yihua Chang, Richard L. Watkins
  • Publication number: 20190366600
    Abstract: A foamed article is made by infusing the article of thermoplastic elastomer with a supercritical fluid, then removing the article from the supercritical fluid and either (i) immersing the article in a heated fluid or (ii) irradiating the article with infrared or microwave radiation.
    Type: Application
    Filed: August 9, 2019
    Publication date: December 5, 2019
    Inventors: Hossein A. Baghdadi, Yihua Chang, Charles R. Edwards, Richard L. Watkins
  • Publication number: 20190329533
    Abstract: Membranes and methods for producing them are disclosed. The membranes comprise a core layer comprising a composite of alternating thermoplastic polyurethane (TPU) and barrier microlayers, and they comprise at least one cap layer that is bonded to the core layer or a structural layer. In some embodiments, at least the cap layer comprises a polydiene polyol-based TPU. The membrane may further comprise a rubber layer bonded to the cap layer.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 31, 2019
    Inventors: Yihua Chang, Richard L. Watkins
  • Patent number: 10421221
    Abstract: A foamed article is made by infusing the article of thermoplastic elastomer with a supercritical fluid, then removing the article from the supercritical fluid and either (i) immersing the article in a heated fluid or (ii) irradiating the article with infrared or microwave radiation.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: September 24, 2019
    Assignee: Nike, Inc.
    Inventors: Hossein A. Baghdadi, Yihua Chang, Charles R. Edwards, Richard L. Watkins
  • Patent number: 10377112
    Abstract: Membranes and methods for producing them are disclosed. The membranes comprise a core layer comprising a composite of alternating thermoplastic polyurethane (TPU) and barrier microlayers, and they comprise at least one cap layer that is bonded to the core layer or a structural layer. In some embodiments, at least the cap layer comprises a polydiene polyol-based TPU. The membrane may further comprise a rubber layer bonded to the cap layer.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: August 13, 2019
    Assignee: Nike, Inc.
    Inventors: Yihua Chang, Richard L. Watkins
  • Patent number: 10253149
    Abstract: Pellets, beads, particles, or other pieces of a thermoplastic elastomer having a maximum size in at least one dimension of 10 mm or less (collectively, “pellets”) are infused with a supercritical fluid in a pressurized container, then rapidly depressurized and heated either by immersion in a heated fluid or with infrared or microwave radiation to foam the pellets The pellets are prepared with at least two different densities. Pellets with different densities, thermoplastic elastomer compositions, or foam response rates are placed in different areas of a mold. The mold is filled with pellets, then the pellets are molded into a part. The part has areas of different density as a result of the placement of pellets of different density.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: April 9, 2019
    Assignee: Nike, Inc.
    Inventors: Richard L. Watkins, Hossein Baghdadi, Charles Edwards, Yihua Chang
  • Patent number: 10208425
    Abstract: A golf ball of a first color is dyed to a second color with an anionic or nonionic disperse dye. Either or both of a pigmented coating layer or an optional clear coating layer on the pigmented coating layer comprises a member selected from the group consisting of polyurethanes, polyureas, polyamides, and combinations thereof, which can be dyed by the anionic or nonionic disperse dye.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: February 19, 2019
    Assignee: NIKE, Inc.
    Inventors: Bradley C. Tutmark, Anna Schoborg, Yihua Chang
  • Patent number: 10189192
    Abstract: Decorative foamed articles are prepared from foamed pellets, beads, particles, or other articles of a thermoplastic elastomer infused with a supercritical fluid in a pressurized container, then rapidly depressurized and heated either by immersion in a heated fluid that can rapidly heat the article or with infrared or microwave radiation to heat and foam the pellets, beads, particles, or other articles that are then molded into the articles. The pellets are dyed with a nonionic or anionic dye one of: (1) before being infused with the supercritical fluid, (2) during being infused with the supercritical fluid by a nonionic or anionic dye dissolved or dispersed in the supercritical fluid, which optionally comprises a polar liquid, (3) during immersion in the heated fluid, where the heated fluid contains the dye, or (4) after being foamed.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: January 29, 2019
    Assignee: NIKE, INC.
    Inventors: Hossein Baghdadi, Yihua Chang, Charles Edwards, Richard L. Watkins
  • Publication number: 20180362721
    Abstract: A thermoplastic elastomer foam is made by incorporating a gaseous or supercritical blowing agent under pressure into a molten thermoplastic elastomer comprising polymeric polymeric crystalline domains, then releasing the pressure to foam the thermoplastic elastomer.
    Type: Application
    Filed: August 22, 2018
    Publication date: December 20, 2018
    Inventors: Yihua Chang, Richard L. Watkins
  • Publication number: 20180272577
    Abstract: A foamed article is made by infusing the article of thermoplastic elastomer with a supercritical fluid, then removing the article from the supercritical fluid and either (i) immersing the article in a heated fluid or (ii) irradiating the article with infrared or microwave radiation.
    Type: Application
    Filed: May 30, 2018
    Publication date: September 27, 2018
    Inventors: Hossein A. Baghdadi, Yihua Chang, Charles R. Edwards, Richard L. Watkins
  • Patent number: 10081716
    Abstract: A thermoplastic elastomer foam is made by incorporating a gaseous or supercritical blowing agent under pressure into a molten thermoplastic elastomer comprising polymeric polymeric crystalline domains, then releasing the pressure to foam the thermoplastic elastomer.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: September 25, 2018
    Assignee: Nike, Inc.
    Inventors: Yihua Chang, Richard L. Watkins
  • Publication number: 20180237605
    Abstract: A thermoplastic elastomer foam is made by incorporating a gaseous or supercritical blowing agent under pressure into a molten thermoplastic elastomer comprising polymeric polymeric crystalline domains, then releasing the pressure to foam the thermoplastic elastomer.
    Type: Application
    Filed: August 9, 2016
    Publication date: August 23, 2018
    Inventors: Yihua CHANG, Richard L. WATKINS
  • Patent number: 10005209
    Abstract: A foamed article is made by infusing the article of thermoplastic elastomer with a supercritical fluid, then removing the article from the supercritical fluid and either (i) immersing the article in a heated fluid or (ii) irradiating the article with infrared or microwave radiation.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: June 26, 2018
    Assignee: Nike, Inc.
    Inventors: Hossein A. Baghdadi, Yihua Chang, Charles R. Edwards, Richard L. Watkins
  • Patent number: 9970155
    Abstract: A polyurethane is dyed with an aqueous solution of an acid dye compound, a quaternary ammonium compound selected from soluble tetrabutylammonium compounds and tetrahexylammonium compounds, and, optionally, an water-soluble organic solvent.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: May 15, 2018
    Assignee: NIKE, Inc.
    Inventors: Anna Schoborg, Reiko Matsuda-Dunn, Richard L. Watkins, Yihua Chang
  • Publication number: 20180080172
    Abstract: A golf ball of a first color is dyed to a second color with an anionic or nonionic disperse dye. Either or both of a pigmented coating layer or an optional clear coating layer on the pigmented coating layer comprises a member selected from the group consisting of polyurethanes, polyureas, polyamides, and combinations thereof, which can be dyed by the anionic or nonionic disperse dye.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 22, 2018
    Inventors: Bradley C. Tutmark, Anna Schoborg, Yihua Chang
  • Patent number: 9863089
    Abstract: A golf ball of a first color is dyed to a second color with an anionic or nonionic disperse dye. Either or both of a pigmented coating layer or an optional clear coating layer on the pigmented coating layer comprises a member selected from the group consisting of polyurethanes, polyureas, polyamides, and combinations thereof, which can be dyed by the anionic or nonionic disperse dye.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: January 9, 2018
    Assignee: NIKE, Inc.
    Inventors: Bradley C. Tutmark, Anna Schoborg, Yihua Chang
  • Patent number: 9802343
    Abstract: A foamed article is made by infusing the article of thermoplastic elastomer with a supercritical fluid, then removing the article from the supercritical fluid and either (i) immersing the article in a heated fluid or (ii) irradiating the article with infrared or microwave radiation.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: October 31, 2017
    Assignee: NIKE, Inc.
    Inventors: Richard L. Watkins, Hossein Baghdadi, Charles Edwards, Yihua Chang
  • Publication number: 20170259473
    Abstract: A foamed article is made by infusing the article of thermoplastic elastomer with a supercritical fluid, then removing the article from the supercritical fluid and either (i) immersing the article in a heated fluid or (ii) irradiating the article with infrared or microwave radiation.
    Type: Application
    Filed: May 31, 2017
    Publication date: September 14, 2017
    Inventors: Hossein A. Baghdadi, Yihua Chang, Charles R. Edwards, Richard L. Watkins
  • Publication number: 20170036377
    Abstract: Decorative foamed articles are prepared from foamed pellets, beads, particles, or other articles of a thermoplastic elastomer infused with a supercritical fluid in a pressurized container, then rapidly depressurized and heated either by immersion in a heated fluid that can rapidly heat the article or with infrared or microwave radiation to heat and foam the pellets, beads, particles, or other articles that are then molded into the articles. The pellets are dyed with a nonionic or anionic dye one of: (1) before being infused with the supercritical fluid, (2) during being infused with the supercritical fluid by a nonionic or anionic dye dissolved or dispersed in the supercritical fluid, which optionally comprises a polar liquid, (3) during immersion in the heated fluid, where the heated fluid contains the dye, or (4) after being foamed.
    Type: Application
    Filed: October 19, 2016
    Publication date: February 9, 2017
    Applicant: NIKE, Inc.
    Inventors: Hossein Baghdadi, Yihua Chang, Charles Edwards, Richard L. Watkins
  • Patent number: 9498927
    Abstract: Decorative foamed articles are prepared from foamed pellets, beads, particles, or other articles of a thermoplastic elastomer infused with a supercritical fluid in a pressurized container, then rapidly depressurized and heated either by immersion in a heated fluid that can rapidly heat the article or with infrared or microwave radiation to heat and foam the pellets, beads, particles, or other articles that are then molded into the articles. The pellets are dyed with a nonionic or anionic dye one of: (1) before being infused with the supercritical fluid, (2) during being infused with the supercritical fluid by a nonionic or anionic dye dissolved or dispersed in the supercritical fluid, which optionally comprises a polar liquid, (3) during immersion in the heated fluid, where the heated fluid contains the dye, or (4) after being foamed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 22, 2016
    Assignee: NIKE, Inc.
    Inventors: Richard L. Watkins, Hossein Baghdadi, Charles Edwards, Yihua Chang