Patents by Inventor Cheng-Houng Huang

Cheng-Houng Huang 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: 11805351
    Abstract: An eartip comprises a central tube part and a cone, the central tube part is in the shape of a column, the cone wraps around the central tube part, the cone comprises a first portion and a second portion, the first portion has a first hardness, the second portion has a second hardness less than the first hardness, a first upper end of the first portion is connected to a top end of the central tube part, and a bottom end of the first portion overlaps with a second upper end of the second portion to form a transition. The invention aims to solve the problems in the prior art that a hardness of eartip materials is too hard to cause discomfort to users, and too soft that may cause the structure to collapse.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: October 31, 2023
    Assignee: Spinfit Trading Limited
    Inventor: Cheng Houng Huang
  • Publication number: 20220256270
    Abstract: An eartip comprises a central tube part and a cone, the central tube part is in the shape of a column, the cone wraps around the central tube part, the cone comprises a first portion and a second portion, the first portion has a first hardness, the second portion has a second hardness less than the first hardness, a first upper end of the first portion is connected to a top end of the central tube part, and a bottom end of the first portion overlaps with a second upper end of the second portion to form a transition. The invention aims to solve the problems in the prior art that a hardness of eartip materials is too hard to cause discomfort to users, and too soft that may cause the structure to collapse.
    Type: Application
    Filed: February 8, 2022
    Publication date: August 11, 2022
    Applicant: Ji Cheng International Ltd.
    Inventor: Cheng Houng Huang
  • Patent number: 11072101
    Abstract: An eartip, mold device for manufacturing the eartip, and method of manufacturing the eartip are introduced, characterized by forming an upper bevel-portion with upper and lower molds of a first mold unit, placing the upper bevel-portion in an upper bevel receiving cavity of a second mold unit, forming a lower bevel-portion with a lower bevel cavity, and joining the upper and lower bevel-portions to form an eartip. The top of the lower hollow-cored guiding tube extends to form a buffer portion which connects and communicates with the upper hollow-cored guiding tube. The upper and lower bevel-portions are made of silicone of different rigidity. The upper bevel-portion thus made is soft enough to reach a user's ear canal deeply. The lower bevel-portion thus made is rigid enough to close the ear canal. An annular buffer cavity is inwardly, concavely formed at the bottom of the lower bevel cavity.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: July 27, 2021
    Assignee: REXTEC INTERNATIONAL LIMITED
    Inventor: Cheng-Houng Huang
  • Publication number: 20180071966
    Abstract: An eartip, mold device for manufacturing the eartip, and method of manufacturing the eartip are introduced, characterized by forming an upper bevel-portion with upper and lower molds of a first mold unit, placing the upper bevel-portion in an upper bevel receiving cavity of a second mold unit, forming a lower bevel-portion with a lower bevel cavity, and joining the upper and lower bevel-portions to form an eartip. The top of the lower hollow-cored guiding tube extends to form a buffer portion which connects and communicates with the upper hollow-cored guiding tube. The upper and lower bevel-portions are made of silicone of different rigidity. The upper bevel-portion thus made is soft enough to reach a user's ear canal deeply. The lower bevel-portion thus made is rigid enough to close the ear canal. An annular buffer cavity is inwardly, concavely formed at the bottom of the lower bevel cavity.
    Type: Application
    Filed: April 25, 2017
    Publication date: March 15, 2018
    Inventor: CHENG-HOUNG HUANG
  • Patent number: 8447060
    Abstract: An earphone comprises a trumpet unit, a hollow shield, and a guide sound tube: the shield is hollow to receive the trumpet, has a sound chamber and an opening, and the opening inclines an acute angle from the trumpet unit; the guide sound tube is disposed at the opening with an end communicating with the sound chamber and another end extending to the opening. The earphone is capable of presenting the high and low pitches completely and providing a better sound quality by way of the acute angle between the opening and the trumpet unit.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: May 21, 2013
    Assignee: Comaxtech International Limited
    Inventor: Cheng-Houng Huang
  • Patent number: 8348011
    Abstract: An earplug cushion for an earphone comprises a central tube part with a sound outlet and a sound inlet fitting with the sound guide tube of the earphone, an outer shield part extending from the sound outlet to the sound inlet for being inserted into the canal, and a buffer part disposed at the tube part next to the sound outlet; according to special and effective design for the buffer part, when the earphone is worn with the earplug cushion, the buffer part becomes twisted and deformed to be adapted to the canal in different sizes snugly without clearances for decreasing oppression to the canal and enhancing quality of the listened sound.
    Type: Grant
    Filed: September 3, 2011
    Date of Patent: January 8, 2013
    Assignee: Rextec International Limited
    Inventor: Cheng-Houng Huang
  • Publication number: 20120275632
    Abstract: An improved earphone comprises a shield member consisting of a front shield part and a rear shield part, and a speaker unit. The front shield part is provided with a cover section with an egg-shaped profile, and has a front side which has a little concave outward shape. The rear shield part extends and converges from the front shield part gradually to form a circular cone section, and further extends to form a connecting tube section. The speaker unit is disposed in the receiving room of the front shield part, and has a center deviates from the center of the front shield. In this way, the earphone can be plugged to the ear tightly, and the speaker unit is capable of aligning with the external auditory canal precisely to concentrate the sound and lessen volume and base of the sound being lost for enhancing the sound quality.
    Type: Application
    Filed: June 2, 2011
    Publication date: November 1, 2012
    Applicant: Comaxtech International Limited
    Inventor: CHENG-HOUNG HUANG
  • Publication number: 20110293130
    Abstract: An earphone comprises a trumpet unit, a hollow shield, and a guide sound tube: the shield is hollow to receive the trumpet, has a sound chamber and an opening, and the opening inclines an acute angle from the trumpet unit; the guide sound tube is disposed at the opening with an end communicating with the sound chamber and another end extending to the opening. The earphone is capable of presenting the high and low pitches completely and providing a better sound quality by way of the acute angle between the opening and the trumpet unit.
    Type: Application
    Filed: March 18, 2011
    Publication date: December 1, 2011
    Applicant: Comaxtech International Limited
    Inventor: Cheng-Houng Huang
  • Patent number: D557689
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: December 18, 2007
    Assignee: Comaxtech International Ltd.
    Inventor: Cheng-Houng Huang
  • Patent number: D647889
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: November 1, 2011
    Inventor: Cheng-Houng Huang
  • Patent number: D803192
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: November 21, 2017
    Inventor: Cheng-Houng Huang
  • Patent number: D962199
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: August 30, 2022
    Assignee: REXTEC INTERNATIONAL LTD.
    Inventor: Cheng Houng Huang