Patents by Inventor Jui-Chu Cheng
Jui-Chu Cheng 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: 8203407Abstract: A surface mount magnetic device includes a magnetic core assembly, a winding coil and an extension region. The magnetic core assembly includes a first magnetic part and a second magnetic part. The second magnetic part has a first surface and a second surface. The first surface of the second magnetic part is connected to second magnetic part such that a receptacle is formed between the first magnetic part and the second magnetic part. The winding coil is partially accommodated within the receptacle and includes at least two pins, wherein the pins are attached on the second surface of the second magnetic part. The extension region is integrally formed on the second surface of the second magnetic part.Type: GrantFiled: June 18, 2007Date of Patent: June 19, 2012Assignee: Delta Electronics, Inc.Inventors: Tsai-Shen Lin, Jui-Chu Cheng, Su-Chiung Hsu
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Patent number: 7915989Abstract: A magnetic element includes a magnetic core assembly and multiple winding coils. The magnetic core assembly is used for proving a closed magnetic flux path and includes a first side plate, a second side plate, a first side pillar, a second side pillar and at least two middle pillars. The first and second side pillars are arranged between the first and second side plates and respectively disposed on bilateral edges of the first and second side plates. The at least two middle pillars are arranged between the first and second side pillars and includes a first middle pillar and a second middle pillar. The winding coils are wound around the at least two middle pillars.Type: GrantFiled: May 21, 2007Date of Patent: March 29, 2011Assignee: Delta Electronics, Inc.Inventors: Wen-Hua Li, Gui-Song Huang, Hai-Feng Fan, Jui-Chu Cheng, Su-Chiung Hsu
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Patent number: 7821373Abstract: The surface mount magnetic device includes a magnetic element and as planar cover. The magnetic element includes a winding structure and a magnetic core. The planar cover is attached on the magnetic element. When a nozzle at a tip of placement head of a placement machine is placed on a top surface of the planar cover, the nozzle is tightly attached on the top surface of the planar cover. The surface mount magnetic device is vacuum picked up by the placement head due to pneumatic suction of a driving device, so that the surface mount magnetic device is transported from a first position to a second position.Type: GrantFiled: March 30, 2009Date of Patent: October 26, 2010Assignee: Delta Electronics, Inc.Inventors: Jui-Chu Cheng, Chen-En Liao
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Publication number: 20100237973Abstract: A process for fabricating a surface mount magnetic device includes the following steps. Firstly, a magnetic core assembly and a coil structure are provided. The magnetic core assembly includes a first magnetic part and a second magnetic part. The coil structure includes a main body and multiple pins extended from the main body. Each pin includes a bent part and a contact part. Next, the magnetic core assembly and the coil structure are combined together. The main body of the coil structure is disposed between the first magnetic part and the second magnetic part. The contact parts of the pins are contacted with a first surface of the second magnetic part.Type: ApplicationFiled: June 17, 2009Publication date: September 23, 2010Inventors: Jui-Chu Cheng, Chen-En Liao
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Publication number: 20100201470Abstract: The surface mount magnetic device includes a magnetic element and a planar cover. The magnetic element includes a winding structure and a magnetic core. The planar cover is attached on the magnetic element. When a nozzle at a tip of placement head of a placement machine is placed on a top surface of the planar cover, the nozzle is tightly attached on the top surface of the planar cover. The surface mount magnetic device is vacuum picked up by the placement head due to pneumatic suction of a driving device, so that the surface mount magnetic device is transported from a first position to a second position.Type: ApplicationFiled: March 30, 2009Publication date: August 12, 2010Applicant: DELTA ELECTRONICS, INC.Inventors: Jui-Chu Cheng, Chen-En Liao
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Publication number: 20080231406Abstract: A surface mount magnetic device includes a magnetic core assembly, a winding coil and an extension region. The magnetic core assembly includes a first magnetic part and a second magnetic part. The second magnetic part has a first surface and a second surface. The first surface of the second magnetic part is connected to second magnetic part such that a receptacle is formed between the first magnetic part and the second magnetic part. The winding coil is partially accommodated within the receptacle and includes at least two pins, wherein the pins are attached on the second surface of the second magnetic part. The extension region is integrally formed on the second surface of the second magnetic part.Type: ApplicationFiled: June 18, 2007Publication date: September 25, 2008Applicant: DELTA ELECTRONICS, INC.Inventors: Tsai-Shen Lin, Jui-Chu Cheng, Su-Chiung Hsu
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Publication number: 20080150665Abstract: A magnetic element includes a magnetic core assembly and multiple winding coils. The magnetic core assembly is used for proving a closed magnetic flux path and includes a first side plate, a second side plate, a first side pillar, a second side pillar and at least two middle pillars. The first and second side pillars are arranged between the first and second side plates and respectively disposed on bilateral edges of the first and second side plates. The at least two middle pillars are arranged between the first and second side pillars and includes a first middle pillar and a second middle pillar. The winding coils are wound around the at least two middle pillars.Type: ApplicationFiled: May 21, 2007Publication date: June 26, 2008Applicant: DELTA ELECTRONICS, INC.Inventors: Wen-Hua Li, Gui-Song Huang, Hai-Feng Fan, Jui-Chu Cheng, Su-Chiung Hsu
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Patent number: 7375610Abstract: A transformer includes a magnetic core assembly, a circuit board, a plurality of pins and at least an interface layer. The magnetic core assembly includes a first magnetic part and a second magnetic part. The circuit board is arranged between the first magnetic part and the second magnetic part, and has a winding coil patterns including a primary winding coil and at least a secondary winding coil. The pins have first ends mounted onto the circuit board. The interface layer is arranged between the first magnetic part and the circuit board and/or between the second magnetic part and the circuit board such that the circuit board lies flat on the interface layer and is secured to the first magnetic part or the second magnetic part via the interface layer.Type: GrantFiled: November 1, 2006Date of Patent: May 20, 2008Assignee: Delta Electronics, Inc.Inventors: Jui-Chu Cheng, Tsai-Shen Lin, Su-Chiung Hsu
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Publication number: 20080055033Abstract: A transformer includes a magnetic core assembly, a circuit board, a plurality of pins and at least an interface layer. The magnetic core assembly includes a first magnetic part and a second magnetic part. The circuit board is arranged between the first magnetic part and the second magnetic part, and has a winding coil patterns including a primary winding coil and at least a secondary winding coil. The pins have first ends mounted onto the circuit board. The interface layer is arranged between the first magnetic part and the circuit board and/or between the second magnetic part and the circuit board such that the circuit board lies flat on the interface layer and is secured to the first magnetic part or the second magnetic part via the interface layer.Type: ApplicationFiled: November 1, 2006Publication date: March 6, 2008Applicant: DELTA ELECTRONICS, INC.Inventors: Jui-Chu Cheng, Tsai-Shen Lin, Su-Chiung Hsu