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).
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Patent number: 11805351Abstract: 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: GrantFiled: February 8, 2022Date of Patent: October 31, 2023Assignee: Spinfit Trading LimitedInventor: Cheng Houng Huang
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Publication number: 20220256270Abstract: 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: ApplicationFiled: February 8, 2022Publication date: August 11, 2022Applicant: Ji Cheng International Ltd.Inventor: Cheng Houng Huang
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Patent number: 11072101Abstract: 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: GrantFiled: April 25, 2017Date of Patent: July 27, 2021Assignee: REXTEC INTERNATIONAL LIMITEDInventor: Cheng-Houng Huang
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Publication number: 20180071966Abstract: 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: ApplicationFiled: April 25, 2017Publication date: March 15, 2018Inventor: CHENG-HOUNG HUANG
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Patent number: 8447060Abstract: 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: GrantFiled: March 18, 2011Date of Patent: May 21, 2013Assignee: Comaxtech International LimitedInventor: Cheng-Houng Huang
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Patent number: 8348011Abstract: 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: GrantFiled: September 3, 2011Date of Patent: January 8, 2013Assignee: Rextec International LimitedInventor: Cheng-Houng Huang
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Publication number: 20120275632Abstract: 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: ApplicationFiled: June 2, 2011Publication date: November 1, 2012Applicant: Comaxtech International LimitedInventor: CHENG-HOUNG HUANG
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Publication number: 20110293130Abstract: 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: ApplicationFiled: March 18, 2011Publication date: December 1, 2011Applicant: Comaxtech International LimitedInventor: Cheng-Houng Huang
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Patent number: D557689Type: GrantFiled: August 30, 2006Date of Patent: December 18, 2007Assignee: Comaxtech International Ltd.Inventor: Cheng-Houng Huang
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Patent number: D647889Type: GrantFiled: December 30, 2010Date of Patent: November 1, 2011Inventor: Cheng-Houng Huang
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Patent number: D803192Type: GrantFiled: May 25, 2016Date of Patent: November 21, 2017Inventor: Cheng-Houng Huang
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Patent number: D962199Type: GrantFiled: May 29, 2020Date of Patent: August 30, 2022Assignee: REXTEC INTERNATIONAL LTD.Inventor: Cheng Houng Huang