Patents by Inventor Wen-Feng Tsai
Wen-Feng Tsai 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: 11860117Abstract: A pH sensor for detecting a pH of a sample includes a reference electrode and a glass electrode. The reference electrode includes a hollow tubular housing, and at least one water absorbing unit disposed in the housing and including a porous junction member configured to contact the sample, and a water absorbing member disposed on one side of the porous junction member that is opposite to the sample. The water absorbing member is made by soaking a superabsorbent polymer in potassium chloride solution. The glass electrode is inserted into the water absorbing member, and protrudes from the junction member toward the sample.Type: GrantFiled: February 28, 2022Date of Patent: January 2, 2024Assignee: LUH CHERNG ENTERPRISE CO., LTD.Inventors: Wen-Feng Tsai, Ke-Fu Lin
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Publication number: 20230273141Abstract: A pH sensor for detecting a pH of a sample includes a reference electrode and a glass electrode. The reference electrode includes a hollow tubular housing, and at least one water absorbing unit disposed in the housing and including a porous junction member configured to contact the sample, and a water absorbing member disposed on one side of the porous junction member that is opposite to the sample. The water absorbing member is made by soaking a superabsorbent polymer in potassium chloride solution. The glass electrode is inserted into the water absorbing member, and protrudes from the junction member toward the sample.Type: ApplicationFiled: February 28, 2022Publication date: August 31, 2023Inventors: Wen-Feng TSAI, Ke-Fu LIN
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Patent number: 10923809Abstract: A communication apparatus, an electronic apparatus and an antenna adjustment method thereof are provided. The communication apparatus includes an antenna system, a tuning portion and a switch circuit. The antenna system includes at least two antenna units. The tuning portion is disposed between the at least two antenna units and includes at least two branch units. The switch circuit is coupled to the tuning portion. The switch circuit switches a conduction from a first one of the branch units to a second one of the branch units according to a switching signal. The switching signal is related to performances of the antenna system. Accordingly, a dynamic and flexible adjustment mechanism can be provided to increase throughput and improve users' internet experience.Type: GrantFiled: April 2, 2019Date of Patent: February 16, 2021Assignee: COMPAL ELECTRONICS, INC.Inventors: Liang-Che Chou, Li-Chun Lee, Yu-Chun Hsieh, Mau-Chi Sun, Jui-Hung Lai, Wen-Feng Tsai, Chih-Chien Liu
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Publication number: 20190305414Abstract: A communication apparatus, an electronic apparatus and an antenna adjustment method thereof are provided. The communication apparatus includes an antenna system, a tuning portion and a switch circuit. The antenna system includes at least two antenna units. The tuning portion is disposed between the at least two antenna units and includes at least two branch units. The switch circuit is coupled to the tuning portion. The switch circuit switches a conduction from a first one of the branch units to a second one of the branch units according to a switching signal. The switching signal is related to performances of the antenna system. Accordingly, a dynamic and flexible adjustment mechanism can be provided to increase throughput and improve users' internet experience.Type: ApplicationFiled: April 2, 2019Publication date: October 3, 2019Applicant: COMPAL ELECTRONICS, INC.Inventors: Liang-Che Chou, Li-Chun Lee, Yu-Chun Hsieh, Mau-Chi Sun, Jui-Hung Lai, Wen-Feng Tsai, Chih-Chien Liu
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Patent number: 9604699Abstract: A bicycle cogset manufacturing method includes: connecting a first and a second sprocket in different sizes with connecting members as a sprockets assembly in advance, where first and second inner portions of the first and second sprockets respectively have first insertion and second insertion members, and each of the insertion members are respectively provided with a first and a second positioning hole; transferring the sprockets assembly into a mold, and performing pouring to form a sprocket base, where an assembly hole is disposed in the center of the sprocket base, a plurality of connecting arms are arranged on an outer portion of the sprocket base, and the connecting arms clad the first insertion members and the second insertion members to form a cogset. In this way, modularization can be implemented to achieve objectives of preventing troublesome riveting, accelerating manufacture, and reducing product weight.Type: GrantFiled: October 30, 2014Date of Patent: March 28, 2017Assignee: TIEN HSIN INDUSTRIES CO., LTD.Inventors: Wen-Feng Tsai, Wen-Nan Liao
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Patent number: 9604698Abstract: A bicycle cogset comprises a sprocket base, a first sprocket, and a second sprocket. A periphery of the sprocket base is provided with a plurality of connecting arms, and each of the connecting arms is provided with at least one first and one second connection hole respectively. The first sprocket has a first outer portion and a first inner portion, the first outer portion provided with a plurality of first teeth, the first inner portion provided with a plurality of first insertion members, and the first insertion members disposed in the first connection holes. The second sprocket has a second outer portion and a second inner portion, the second outer portion provided with a plurality of second teeth, the second inner portion provided with a plurality of second insertion members, and the second insertion members disposed in the second connection holes.Type: GrantFiled: October 22, 2014Date of Patent: March 28, 2017Assignee: TIEN HSIN INDUSTRIES CO., LTD.Inventors: Wen-Feng Tsai, Wen-Nan Liao
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Publication number: 20160121965Abstract: A bicycle cogset manufacturing method includes: connecting a first and a second sprocket in different sizes with connecting members as a sprockets assembly in advance, where first and second inner portions of the first and second sprockets respectively have first insertion and second insertion members, and each of the insertion members are respectively provided with a first and a second positioning hole; transferring the sprockets assembly into a mold, and performing pouring to form a sprocket base, where an assembly hole is disposed in the center of the sprocket base, a plurality of connecting arms are arranged on an outer portion of the sprocket base, and the connecting arms clad the first insertion members and the second insertion members to form a cogset. In this way, modularization can be implemented to achieve objectives of preventing troublesome riveting, accelerating manufacture, and reducing product weight.Type: ApplicationFiled: October 30, 2014Publication date: May 5, 2016Inventors: WEN-FENG TSAI, WEN-NAN LIAO
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Publication number: 20160114859Abstract: A bicycle cogset comprises a sprocket base, a first sprocket, and a second sprocket. A periphery of the sprocket base is provided with a plurality of connecting arms, and each of the connecting arms is provided with at least one first and one second connection hole respectively. The first sprocket has a first outer portion and a first inner portion, the first outer portion provided with a plurality of first teeth, the first inner portion provided with a plurality of first insertion members, and the first insertion members disposed in the first connection holes. The second sprocket has a second outer portion and a second inner portion, the second outer portion provided with a plurality of second teeth, the second inner portion provided with a plurality of second insertion members, and the second insertion members disposed in the second connection holes.Type: ApplicationFiled: October 22, 2014Publication date: April 28, 2016Inventors: WEN-FENG TSAI, WEN-NAN LIAO
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Patent number: 9273824Abstract: An adjustable support structure includes a mounting base, a support arm pivotally connected to the mounting base, two swivel arms respectively pivotally connected to opposing left and right sides of the support arm for hooking on a respective post, and two chucks respectively slidably coupled to respective shanks of the swivel arms and movable by respective locknuts for stopping one respective post in the hooks of the swivel arms to lock the swivel arms to the posts.Type: GrantFiled: March 20, 2015Date of Patent: March 1, 2016Inventors: Wen-Feng Tsai, Cheng-Che Yu
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Patent number: 9077079Abstract: An electronic device including a shell, an antenna unit, an insulating layer and an isolating conductor is provided. The material of the shell includes conductive material. The antenna unit is disposed on the shell and includes a first antenna and a second antenna. The first antenna and the second antenna are grounded to the shell. The insulating layer is disposed on the shell and located between a ground plane of the first antenna and a ground plane of the second antenna. The isolating conductor is disposed on the insulating layer and has a slot.Type: GrantFiled: October 2, 2012Date of Patent: July 7, 2015Assignee: COMPAL ELECTRONICS, INC.Inventors: Yun-Lung Ke, Wen-Feng Tsai, Cheng-Chi Chen, Huang-Wei Chen
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Patent number: 8684471Abstract: A bicycle rim includes a body having an axis defining a center thereof. The body includes an outer periphery and an inner periphery. The outer periphery and the axis have an outer radius therebetween, and the outer radius is constant. The inner periphery includes a first portion having a non-constant diameter.Type: GrantFiled: January 31, 2011Date of Patent: April 1, 2014Assignee: Tien Hsin Industries Co., Ltd.Inventor: Wen-Feng Tsai
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Publication number: 20140062797Abstract: An electronic device including a shell, an antenna unit, an insulating layer and an isolating conductor is provided. The material of the shell includes conductive material. The antenna unit is disposed on the shell and includes a first antenna and a second antenna. The first antenna and the second antenna are grounded to the shell. The insulating layer is disposed on the shell and located between a ground plane of the first antenna and a ground plane of the second antenna. The isolating conductor is disposed on the insulating layer and has a slot.Type: ApplicationFiled: October 2, 2012Publication date: March 6, 2014Inventors: Yun-Lung Ke, Wen-Feng Tsai, Cheng-Chi Chen, Huang-Wei Chen
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Patent number: 8638557Abstract: A mobile electronic device holder includes an upper holder frame shell, a bottom holder frame shell attached to the bottom side of the upper holder frame shell, three first clamping members respectively slidably mounted in respective sliding ways of the bottom holder frame shell for holding a mobile electronic device, a gear wheel rotatable to move the first clamping members in and out of the upper and bottom holder frame shells, a retractable second clamping member slidably mounted in one sliding way of the bottom holder frame shell and adjustable to one of a series of length.Type: GrantFiled: December 7, 2011Date of Patent: January 28, 2014Inventor: Wen-Feng Tsai
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Publication number: 20130283970Abstract: A bicycle drive assembly includes a spindle installed in a bicycle, a first crank arm and a second crank arm respectively mounted at two distal ends of the spindle, the first crank arm being rotatable on the axis of the spindle in a first direction of rotation to drive the bicycle forwards, the first crank arm being fastened to the spindle by a screw joint in a second direction of rotation that is the same direction of the first direction of rotation to ensure tight connection between the first crank arm and the spindle when the user is riding the bicycle to pedal the first crank arm.Type: ApplicationFiled: June 15, 2012Publication date: October 31, 2013Applicant: Tien Hsin Industries Co., Ltd.Inventor: Wen-Feng TSAI
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Patent number: 8511200Abstract: A speed control device which is adapted to be used in connection with a derailleur type bicycle has one operation mode for up-shifting the speed and another operation mode for down-shifting the speed. The two operation modes can be affected by an operation lever, with the operation lever pivoted in a first plane for the up-shifting operation and in a second plane for the down-shifting operation.Type: GrantFiled: December 9, 2009Date of Patent: August 20, 2013Assignee: Tien Hsin Industries Co., Ltd.Inventors: Wen-Feng Tsai, Chia-Wei Liao
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Publication number: 20130148273Abstract: A mobile electronic device holder includes an upper holder frame shell, a bottom holder frame shell attached to the bottom side of the upper holder frame shell, three first clamping members respectively slidably mounted in respective sliding ways of the bottom holder frame shell for holding a mobile electronic device, a gear wheel rotatable to move the first clamping members in and out of the upper and bottom holder frame shells, a retractable second clamping member slidably mounted in one sliding way of the bottom holder frame shell and adjustable to one of a series of length.Type: ApplicationFiled: December 7, 2011Publication date: June 13, 2013Inventor: Wen-Feng Tsai
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Patent number: 8302920Abstract: A dual vacuum mount type support device includes a support arm, two vacuum mount assemblies pivotally connected to the two distal ends of the support arm for securing to the flat surface of a support wall and the flat surface of an object to be supported on the support wall, and two pivot locks for locking the vacuum mount assemblies to the support arm in the respective adjusted position.Type: GrantFiled: July 6, 2010Date of Patent: November 6, 2012Inventor: Wen-Feng Tsai
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Publication number: 20120242138Abstract: According to the present invention, a bicycle rim comprises a rim body and a reinforcement layer. Each of the rim body and the reinforcement layer is constructed of carbon fiber, and the reinforcement layer is integrally formed on the rim body.Type: ApplicationFiled: March 22, 2011Publication date: September 27, 2012Inventor: Wen-Feng Tsai
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Publication number: 20120193970Abstract: According to the present invention, a bicycle rim comprises a body having an axis defining a center thereof. The body includes an outer periphery and an inner periphery. The outer periphery and the axis have an outer radius therebetween, and the outer radius is constant. The inner periphery includes a first portion having non constant diameter.Type: ApplicationFiled: January 31, 2011Publication date: August 2, 2012Inventor: Wen-Feng Tsai
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Patent number: 8109479Abstract: A multi-vacuum mount type support device includes a multi-end connection bar, multiple supporting arms each having one end thereof horizontally pivotally connected to a respective end of the multi-end connection bar by a respective pivot lock, multiple vacuum mount assemblies vertically pivotally connected to the other ends of the supporting arms by respective pivot lock for securing to a flat surface by a vacuum suction force, and a mount connected to one front end of the multi-end connection to hold a holder member for holding an electronic apparatus.Type: GrantFiled: July 26, 2010Date of Patent: February 7, 2012Inventor: Wen-Feng Tsai