Patents by Inventor Hong Chih Wang

Hong Chih Wang 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).

  • MOLDS AND METHODS TO CONTROL MOLD SURFACE QUALITY
    Publication number: 20190330096
    Abstract: A method for treating a mold includes grinding an outer metal surface of a mold body of the mold with a first material; lapping the outer metal surface after the grinding with a second material that is finer than the first material; and polishing the outer metal surface after the lapping to achieve an average surface roughness (Ra) less than or equal to about 0.15 ?m and a waviness height (Wa) less than or equal to about 100 nm. A mold for shaping glass-based material can include a mold body having an outer metal surface, wherein the outer metal surface has an average surface roughness (Ra) less than or equal to about 0.15 ?m and a waviness height (Wa) less than or equal to about 100 nm.
    Type: Application
    Filed: July 9, 2019
    Publication date: October 31, 2019
    Inventors: Yi-Chun Chiang, Jill Marie Hall, Fang-Yu Hsu, Shen Li, Ljerka Ukrainczyk, Hong Chih Wang
  • Molds and methods to control mold surface quality
    Patent number: 10351459
    Abstract: A method for treating a mold includes grinding an outer metal surface of a mold body of the mold with a first material; lapping the outer metal surface after the grinding with a second material that is finer than the first material; and polishing the outer metal surface after the lapping to achieve an average surface roughness (Ra) less than or equal to about 0.15 ?m and a waviness height (Wa) less than or equal to about 100 nm. A mold for shaping glass-based material can include a mold body having an outer metal surface, wherein the outer metal surface has an average surface roughness (Ra) less than or equal to about 0.15 ?m and a waviness height (Wa) less than or equal to about 100 nm.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: July 16, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Yi-Chun Chiang, Jill Marie Hall, Shen Li, Ljerka Ukrainczyk, Hong Chih Wang, Fang-Yu Hsu
  • MOLDS AND METHODS TO CONTROL MOLD SURFACE QUALITY
    Publication number: 20170044045
    Abstract: A method for treating a mold includes grinding an outer metal surface of a mold body of the mold with a first material; lapping the outer metal surface after the grinding with a second material that is finer than the first material; and polishing the outer metal surface after the lapping to achieve an average surface roughness (Ra) less than or equal to about 0.15 ?m and a waviness height (Wa) less than or equal to about 100 nm. A mold for shaping glass-based material can include a mold body having an outer metal surface, wherein the outer metal surface has an average surface roughness (Ra) less than or equal to about 0.15 ?m and a waviness height (Wa) less than or equal to about 100 nm.
    Type: Application
    Filed: August 11, 2016
    Publication date: February 16, 2017
    Inventors: Yi-Chun Chiang, Jill Marie Hall, Shen Li, Ljerka Ukrainczyk, Hong Chih Wang, Fang-Yu Hsu