Patents by Inventor Hsin-Wei Tsai

Hsin-Wei 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).

  • Publication number: 20190252459
    Abstract: A light-emitting device includes a first semiconductor layer having an uppermost surface and a bottommost surface; a first light-emitting structure and a second light-emitting structure formed on the same first semiconductor layer, wherein the first semiconductor layer is continuous; a first trench formed between the first and the second light-emitting structures; and a second electrode formed on the second semiconductor layer and including a second pad and a plurality of second extending parts extending from the second pad; wherein the second pad is between the first and the second light-emitting structures, and the plurality of second extending parts extends to the first and the second light-emitting structures, respectively; wherein the first trench passes through the uppermost surface but does not extend to the bottommost surface; wherein the first trench includes an equal width in a top view.
    Type: Application
    Filed: April 22, 2019
    Publication date: August 15, 2019
    Inventors: Chen OU, Chun-Wei CHANG, Chih-Wei WU, Sheng-Chih WANG, Hsin-Mei TSAI, Chia-Chen TSAI, Chuan-Cheng CHANG
  • Patent number: 10319780
    Abstract: A light-emitting device includes a first semiconductor layer; a first, a second and a third light-emitting structures formed on the same first semiconductor layer; a first trench between the first and the second light-emitting structures; a second trench between the second and the third light-emitting structures, wherein the first and the second trenches include bottom portions exposing a surface of the first semiconductor layer; a third trench in one of the light-emitting structures, exposing the first semiconductor layer and extending along a direction parallel with the first semiconductor layer; an insulating bridge part in the first and the second trenches, connecting the light-emitting structures; a first electrode in the third trench, electrically connecting to the first semiconductor layer; and a second electrode, including a pad on one of the light-emitting structures and an extending part; wherein the extending part is formed on the insulating bridge part and extends to the light-emitting structures.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 11, 2019
    Assignee: EPISTAR CORPORATION
    Inventors: Chen Ou, Chun-Wei Chang, Chih-Wei Wu, Sheng-Chih Wang, Hsin-Mei Tsai, Chia-Chen Tsai, Chuan-Cheng Chang
  • Publication number: 20190157103
    Abstract: A planarization method and a CMP method are provided. The planarization method includes providing a substrate with a first region and a second region having different degrees of hydrophobicity or hydrophilicity and performing a surface treatment to the first region to render the degrees of hydrophobicity or hydrophilicity in proximity to that of the second region. The CMP method includes providing a substrate with a first region and a second region; providing a polishing slurry on the substrate, wherein the polishing slurry and the surface of the first region have a first contact angle, and the polishing slurry and the surface of the first region have a second contact angle; modifying the surface of the first region to make a contact angle difference between the first contact angle and the second contact angle equal to or less than 30 degrees.
    Type: Application
    Filed: June 8, 2018
    Publication date: May 23, 2019
    Inventors: TUNG-KAI CHEN, CHING-HSIANG TSAI, KAO-FENG LIAO, CHIH-CHIEH CHANG, CHUN-HAO KUNG, FANG-I CHIH, HSIN-YING HO, CHIA-JUNG HSU, HUI-CHI HUANG, KEI-WEI CHEN
  • Patent number: 10113593
    Abstract: An encoder with oil gas prevention structure including a base, a shaft, a bearing, a cover and an encoding device is provided. The base includes a body and a through hole configured on the body. The shaft is disposed within the though hole. The bearing holds the shaft and is disposed within the through hole, and includes an inner ring and an outer ring wherein the inner ring is set against the first section, and the outer ring is set against a circumference of the through hole. The cover holds the shaft and adjacent to the bearing. The encoding device holds the shaft and is disposed on the cover, and includes a code disc rotatably disposed on the shaft wherein the cover is located between the bearing and the code disc. Therefore, the code disc is prevented from being contaminated by the leaking oil gas from the bearing.
    Type: Grant
    Filed: August 5, 2017
    Date of Patent: October 30, 2018
    Assignee: HIWIN MIKROSYSTEM CORP.
    Inventors: Wei-Kai Tseng, Jheng-Ying Lin, Yi-Shun Huang, Hsin-Wei Tsai
  • Publication number: 20180308615
    Abstract: A magnetic assembly includes a magnetic core set including a first and a second magnetic cores. The first magnetic core and the second magnetic core, which are disposed opposite to each other, each includes a main body, a central projection, a first projection and a second projection. The main body has a central portion, a first portion and a second portion. The central portion is located between the first portion and the second portion. The central projection is extended from the central portion. The first projection is extended from the first portion. The second projection is extended from the second portion. The lengths of the first projection and the second projection are equal, and the length of the central projection is greater than the length of the first projection. Therefore, the volume of product is reduced and the difficulty of process is lowered.
    Type: Application
    Filed: June 23, 2017
    Publication date: October 25, 2018
    Inventors: Hsin-Wei Tsai, Hua-Sheng Lin
  • Patent number: 9564267
    Abstract: A magnetic element includes a bobbin assembly, at least one pancake winding assembly, a winding coil assembly and a magnetic core assembly. The bobbin assembly includes plural bobbin units. The plural bobbin units are detachably coupled with each other. Each bobbin unit includes a main body, a coupling structure and at least one engaging structure. The main body includes an external surface, a channel and a first winding section. The coupling structure is disposed on the external surface of the main body. The engaging structure of the bobbin unit is engaged with the engaging structure of an adjacent bobbin unit. The pancake winding assembly is disposed around the main body and coupled with the corresponding coupling structure. The winding coil assembly is wound around the first winding section. The magnetic core assembly is partially accommodated within the channel of the bobbin unit.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: February 7, 2017
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Hua-Sheng Lin, Hsin-Wei Tsai, Yu-Liang Hung, Ming-Cheng Lee
  • Patent number: 9349521
    Abstract: A transformer includes a primary side module, a secondary winding structure, and a magnetic core assembly. The primary side module includes a primary winding structure, a first covering structure and a second covering structure. The primary winding structure has a first opening. The first covering structure includes a second opening corresponding to the first opening and a first receiving recess for accommodating the primary winding structure. The first receiving recess is covered and sealed by the second covering structure. The second covering structure includes a third opening corresponding to the first opening. The first opening, the second opening and the third opening are in communication with each other to be defined as a channel. The secondary winding structure includes a fourth opening, which is in communication with the channel. The magnetic core assembly is partially embedded within the channel and the fourth opening.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: May 24, 2016
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Hsin-Wei Tsai, Yu-Chieh Li, Chia-Cheng Yang
  • Publication number: 20160133379
    Abstract: A magnetic element includes a bobbin assembly, at least one pancake winding assembly, a winding coil assembly and a magnetic core assembly. The bobbin assembly includes plural bobbin units. The plural bobbin units are detachably coupled with each other. Each bobbin unit includes a main body, a coupling structure and at least one engaging structure. The main body includes an external surface, a channel and a first winding section. The coupling structure is disposed on the external surface of the main body. The engaging structure of the bobbin unit is engaged with the engaging structure of an adjacent bobbin unit. The pancake winding assembly is disposed around the main body and coupled with the corresponding coupling structure. The winding coil assembly is wound around the first winding section. The magnetic core assembly is partially accommodated within the channel of the bobbin unit.
    Type: Application
    Filed: January 22, 2015
    Publication date: May 12, 2016
    Inventors: Hua-Sheng Lin, Hsin-Wei Tsai, Yu-Liang Hung, Ming-Cheng Lee
  • Patent number: 9214763
    Abstract: A fly line connector is disclosed. A pin is connected to a main body. A fly line is wrapped around the pin. A first engaging portion is formed on the main body. A first engaging hole is formed in the main body and is opposite to the first engaging portion. When a number of the fly line connectors are combined together, the first engaging portion of one of the fly line connectors is engaged with the first engaging hole of the other one of the fly line connectors.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: December 15, 2015
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Hsin-Wei Tsai, Ssu-Wei Fu, Ming-Cheng Lee
  • Patent number: 9089070
    Abstract: An inverter and an electronic apparatus using the inverter are disclosed. The electronic apparatus has a circuit board and an inverter. The circuit board has an opening. The inverter has a wiring frame arranged in the opening. The wiring frame has a wiring portion for wiring coils. The wiring portion has two carrying portions at opposite sides, respectively. Each of the carrying portions has a side portion. A space for accommodating magnet is formed by the wiring portion and the carrying portion and the side portion. A conductive contact is arranged at one side of the side portion and a protrusion is arranged at another side of the side portion. The protrusion is used for being against the surface of the circuit board, and the height of the inverter with respect to the circuit board can thus be adjusted by the protrusion.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: July 21, 2015
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Han-Hsing Lin, Hsiang-Yi Tseng, Hsin-Wei Tsai, Ching-Hsiang Tien, Yi-Lin Chen
  • Patent number: 8994487
    Abstract: A transformer includes a bobbin, at least one primary winding coil, at least one secondary winding coil, and a magnetic core assembly. The bobbin includes a main body, plural extension structures, and plural pin groups. The main body includes a channel, plural winding sections, a first connecting seat, and a second connecting seat. The plural extension structures are connected with the first connecting seat and the second connecting seat, respectively. In addition, each of the plural extension structures has a notch and a stepped structure, and the stepped structure comprises plural stepped parts. Each of the primary winding coil and the secondary winding coil includes plural outlet terminals. The plural outlet terminals of the secondary winding coil are respectively disposed on the plural stepped parts of the stepped structure and fixed on the pin group which is disposed on one of the extension structures.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 31, 2015
    Assignee: Delta Electronics, Inc.
    Inventors: Han-Hsing Lin, Hsiang-Yi Tseng, Ching-Hsiang Tien, Hsin-Wei Tsai, Yi-Lin Chen, Chun-Ping Chen
  • Publication number: 20140327511
    Abstract: A transformer includes a primary side module, a secondary winding structure, and a magnetic core assembly. The primary side module includes a primary winding structure, a first covering structure and a second covering structure. The primary winding structure has a first opening. The first covering structure includes a second opening corresponding to the first opening and a first receiving recess for accommodating the primary winding structure. The first receiving recess is covered and sealed by the second covering structure. The second covering structure includes a third opening corresponding to the first opening. The first opening, the second opening and the third opening are in communication with each other to be defined as a channel. The secondary winding structure includes a fourth opening, which is in communication with the channel. The magnetic core assembly is partially embedded within the channel and the fourth opening.
    Type: Application
    Filed: November 7, 2013
    Publication date: November 6, 2014
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Hsin-Wei Tsai, Yu-Chieh Li, Chia-Cheng Yang
  • Publication number: 20140206219
    Abstract: A fly line connector is disclosed. A pin is connected to a main body. A fly line is wrapped around the pin. A first engaging portion is formed on the main body. A first engaging hole is formed in the main body and is opposite to the first engaging portion. When a number of the fly line connectors are combined together, the first engaging portion of one of the fly line connectors is engaged with the first engaging hole of the other one of the fly line connectors.
    Type: Application
    Filed: October 4, 2013
    Publication date: July 24, 2014
    Applicant: Delta Electronics, Inc.
    Inventors: Hsin-Wei TSAI, Ssu-Wei FU, Ming-Cheng LEE
  • Patent number: 8648686
    Abstract: A resonant transformer and resonant converter are disclosed. The resonant transformer includes a first bobbin, a first primary winding coil, plural first secondary winding coils, a second bobbin, a second primary winding coil, plural second secondary winding coils and a magnetic core assembly. The first bobbin includes a first winding section and plural single-trough second winding sections. Plural pins are arranged at the first winding section. The first primary winding coil is wound around the first winding section and connected with the pins. The first secondary winding coils are wound around respective single-trough second winding sections. The second bobbin includes a third winding section and plural single-trough fourth winding sections. The second primary winding coil are wound around the third winding section and connected with the pins at the first winding section of the first bobbin. The second secondary winding coils are wound around respective single-trough fourth winding sections.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: February 11, 2014
    Assignee: Delta Electronics, Inc.
    Inventors: Hsin-Wei Tsai, Shih-Hsien Chang, Ching-Hsing Tien
  • Patent number: 8643460
    Abstract: A transformer structure includes a bobbin, a conductive base, a first winding coil, plural second winding coils, and a magnetic core assembly. The bobbin includes a main body and a channel. The main body has a first winding section and plural first pins. The plural first pins are located at bilateral sides of the main body. The channel runs through the main body. The conductive base is disposed on a bottom side of the bobbin, and includes at least one connecting part. Through the connecting part of the conductive base, at least a portion of the plural first pins are electrically connected with each other. The first winding coil is wound around the first winding section. The second winding coils are connected with corresponding first pins. The magnetic core assembly is partially embedded into the channel of the bobbin.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: February 4, 2014
    Assignee: Delta Electronics, Inc.
    Inventors: Hsiang-Yi Tseng, Hsin-Wei Tsai, Ching-Hsiang Tien, Han-Hsing Lin, Yi-Lin Chen
  • Publication number: 20130321114
    Abstract: A transformer includes a bobbin, at least one primary winding coil, at least one secondary winding coil, and a magnetic core assembly. The bobbin includes a main body, plural extension structures, and plural pin groups. The main body includes a channel, plural winding sections, a first connecting seat, and a second connecting seat. The plural extension structures are connected with the first connecting seat and the second connecting seat, respectively. In addition, each of the plural extension structures has a notch and a stepped structure, and the stepped structure comprises plural stepped parts. Each of the primary winding coil and the secondary winding coil includes plural outlet terminals. The plural outlet terminals of the secondary winding coil are respectively disposed on the plural stepped parts of the stepped structure and fixed on the pin group which is disposed on one of the extension structures.
    Type: Application
    Filed: September 14, 2012
    Publication date: December 5, 2013
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Han-Hsing Lin, Hsiang-Yi Tseng, Ching-Hsiang Tien, Hsin-Wei Tsai, Yi-Lin Chen, Chun-Ping Chen
  • Publication number: 20130249659
    Abstract: A transformer structure includes a bobbin, a conductive base, a first winding coil, plural second winding coils, and a magnetic core assembly. The bobbin includes a main body and a channel. The main body has a first winding section and plural first pins. The plural first pins are located at bilateral sides of the main body. The channel runs through the main body. The conductive base is disposed on a bottom side of the bobbin, and includes at least one connecting part. Through the connecting part of the conductive base, at least a portion of the plural first pins are electrically connected with each other. The first winding coil is wound around the first winding section. The second winding coils are connected with corresponding first pins. The magnetic core assembly is partially embedded into the channel of the bobbin.
    Type: Application
    Filed: September 13, 2012
    Publication date: September 26, 2013
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Hsiang-Yi Tseng, Hsin-Wei Tsai, Ching-Hsiang Tien, Han-Hsing Lin, Yi-Lin Chen
  • Patent number: 8514048
    Abstract: A transformer capable of adjusting its height is provided. The transformer is formed on a circuit board having a receiving hole. The transformer comprises a winding module, two magnetic core modules, a plurality of pins and a plurality of supporting bulges. The winding module comprises a winding baseboard and a winding pillar where a winding structure is formed thereon. The winding pillar is received in the receiving hole. The winding baseboard further comprises a corresponding surface heading to the circuit board. The magnetic core modules contact and hold the winding module. The pins are formed on the edge of the to winding baseboard to be connected to the circuit board around the receiving hole. The supporting bulges are formed between the corresponding surface and the circuit board, wherein the height of the corresponding surface relative to the circuit board is adjusted according to the supporting bulges.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: August 20, 2013
    Assignee: Delta Electronics, Inc.
    Inventors: Hsiang-Yi Tseng, Ching-Hsiang Tien, Yi-Lin Chen, Hsin-Wei Tsai, Chun-Song Ming
  • Patent number: 8477005
    Abstract: A transformer capable of maintaining its height is provided. The transformer is formed on a circuit board having a receiving hole. The transformer comprises a winding module, two magnetic core modules contacting and holding the winding module, a plurality of pins and at least one supporting means. The winding module comprises a winding baseboard and a winding pillar where a winding structure is formed thereon. The winding pillar is received in the receiving hole. Each of the pins comprises a first bent part separating the corresponding pin into a first portion connected to the winding baseboard and a second portion connected to the circuit board around the receiving hole. The supporting means is formed between the first portion of at least one of the pins and the circuit board to contact the first portion and the circuit board to maintain the distance between them.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: July 2, 2013
    Assignee: Delta Electronics, Inc.
    Inventors: Hsiang-Yi Tseng, Ching-Hsiang Tien, Yi-Lin Chen, Hsin-Wei Tsai, Chun-Song Ming
  • Patent number: 8410885
    Abstract: A combined transformer is provided. The transformer comprises at least three bobbins arranged abreast and a core assembly. Each of the bobbins includes two separated guard plates, a winding column, a through groove and two metal pins; the winding column is disposed between the guard plates, while the through groove extends through the guard plates and the winding column. Furthermore, the two metal pins are disposed on one of the guard plates; the winding column is wound with a coil, and two end portions of the coil are connected to the two metal pins respectively. The core assembly includes two separated magnetic plates and at least three separated magnetic columns disposed between the magnetic plates. The bobbins are sandwiched between the magnetic plates, and the magnetic columns are located in the through grooves. Thus, the combined transformer can have a reduced thickness and multiple outputs.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: April 2, 2013
    Assignee: Delta Electronics, Inc.
    Inventors: Hsiang-Yi Tseng, Hsin-Wei Tsai, Ming-Cheng Lee, Yi-Lin Chen