Patents by Inventor Chia-Wen Hsu

Chia-Wen Hsu 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: 8080824
    Abstract: A semiconductor material structure includes at least one region capable of generating electrons and holes each having an associated mean kinetic energy during operation. A material layer in proximity to the region provides an associated potential energy larger than the mean kinetic energy associated with the generated electrons and the mean kinetic energy associated with the holes.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: December 20, 2011
    Assignee: Academia Sinica
    Inventors: Kuei-Hsien Chen, Chien-Hung Lin, Chia-Wen Hsu, Li-Chyong Chen
  • Publication number: 20110284517
    Abstract: An electrically heated tool adapted for an anchoring device includes a housing having an opening, a heating head extending forwardly out of the opening, and a movable member disposed movably on the heating head and extending forwardly out of the opening. The movable member has an engagement hole permitting extension of the heating head therethrough, a front annular surface, a loading portion disposed on the front annular surface, and a loading space defined between the loading portion and the front annular surface. The movable member is movable relative to the heating head between an extended position whereat a front pressing surface of the heating head is spaced apart from a forwardly protruding nose of the device, and a retracted position whereat the front pressing surface contacts the nose. A spring is disposed for biasing the movable member toward the extended position.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 24, 2011
    Inventor: Chia-Wen HSU
  • Publication number: 20110284130
    Abstract: An electric pencil sharpener includes a housing unit having an opening, a driving member driven by a motor, a cutting unit, and a panel unit. The cutting unit includes an outer frame mounted removably in the housing unit and including a ring gear, an inner frame disposed pivotally within the outer frame, and at least one cutting member disposed pivotally on the inner frame. The inner frame has a driven portion connected co-rotatably and removably to the driving member, and a cutting groove. The cutting member has a blade portion adjacent to the cutting groove, and a planetary gear portion meshing with the ring gear. The panel unit is mounted removably to the housing unit for covering the opening, and has a pencil-feeding hole. When the panel unit is removed from the housing unit, the cutting unit can be taken out of the housing unit through the opening.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 24, 2011
    Inventor: Chia-Wen Hsu
  • Patent number: 8013039
    Abstract: An encapsulant composition for a light-emitting diode is provided. One embodiment of the encapsulant composition comprises: (a) about 100 parts by weight of at least one liquid bi-functional epoxy resin containing about 40˜50 weight % of aromatic ring; (b) about 55˜120 parts by weight of a curing agent comprising at least one bi-functional thiol curing agent containing aromatic ring and at least one aliphatic tetra-functional thiol curing agent, wherein the curing agent contains about 10˜50 weight % of aromatic ring and about 20˜35 weight % of sulfur; and (c) about 0.05˜0.5 parts by weight of a catalyst. The encapsulant composition having a high refractive index can be used for a solid state light emitting device to enhance light extraction efficiency.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: September 6, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Chia-Wen Hsu, Hsun-Tien Li, Kai-Chi Chen
  • Patent number: 7714799
    Abstract: An antenna device comprises a base, a combination element, a fixing element, a rotation unit, and a radiation conductor. The base has a through hole and a bottom surface. The bottom surface has a plurality of pins, and the through hole is approximately parallel to the bottom surface. The combination element has a first blocking portion. The fixing element has an embedding surface, wherein the embedding surface is surrounded by a plurality of metal plates. The first blocking portion touches one terminal of the fixing element. The rotation unit has a second blocking portion, and the second blocking portion touches the other terminal of the fixing element. The other terminal of rotation unit pivoted at the radiation conductor. The fixing element wedges with close in the inner of the through hole of the base. Therefore, the antenna device is formed a firm structure.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: May 11, 2010
    Assignee: Advanced Connectek Inc.
    Inventors: Chia-Wen Hsu, Fang-Yen Sung, Yu-Liang Chu, Wan-Li Wang, Tsung-Wen Chiu, Fu-Ren Hsiao
  • Patent number: 7567211
    Abstract: An antenna is formed integrally into one piece and has a ground plane, a feeding strip and two pairs of radiating patches. The feeding strip is connected integrally to the ground plane. The pairs of the radiating patches are formed symmetrically and integrally on the feeding strip. The antenna formed integrally into one piece simplifies the manufacture of the antenna lowers the manufacturing cost of the antenna.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: July 28, 2009
    Assignee: Advanced Connectek Inc.
    Inventors: Cheng-Hsuan Hsu, Chia-Wen Hsu, Tsung-Wen Chiu, Fu-Ren Hsiao
  • Publication number: 20090093570
    Abstract: An encapsulant composition for a light-emitting diode is provided. One embodiment of the encapsulant composition comprises: (a) about 100 parts by weight of at least one liquid bi-functional epoxy resin containing about 40˜50 weight % of aromatic ring; (b) about 55˜120 parts by weight of a curing agent comprising at least one bi-functional thiol curing agent containing aromatic ring and at least one aliphatic tetra-functional thiol curing agent, wherein the curing agent contains about 10˜50 weight % of aromatic ring and about 20˜35 weight % of sulfur; and (c) about 0.05˜0.5 parts by weight of a catalyst. The encapsulant composition having a high refractive index can be used for a solid state light emitting device to enhance light extraction efficiency.
    Type: Application
    Filed: June 27, 2008
    Publication date: April 9, 2009
    Inventors: Chia-Wen Hsu, Hsun-Tien Li, Kai-Chi Chen
  • Publication number: 20080316119
    Abstract: An antenna device comprises a base, a combination element, a fixing element, a rotation unit, and a radiation conductor. The base has a through hole and a bottom surface. The bottom surface has a plurality of pins, and the through hole is approximately parallel to the bottom surface. The combination element has a first blocking portion. The fixing element has an embedding surface, wherein the embedding surface is surrounded by a plurality of metal plates. The first blocking portion touches one terminal of the fixing element. The rotation unit has a second blocking portion, and the second blocking portion touches the other terminal of the fixing element. The other terminal of rotation unit pivoted at the radiation conductor. The fixing element wedges with close in the inner of the through hole of the base. Therefore, the antenna device is formed a firm structure.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 25, 2008
    Applicant: ADVANCED CONNECTEK INC.
    Inventors: Chia-Wen Hsu, Fang-Yen Sung, Yu-Liang Chu, Wan-Li Wang, Tsung-Wen Chiu, Fu-Ren Hsiao
  • Publication number: 20080198085
    Abstract: An antenna is formed integrally into one piece and has a ground plane, a feeding strip and two pairs of radiating patches. The feeding strip is connected integrally to the ground plane. The pairs of the radiating patches are formed symmetrically and integrally on the feeding strip. The antenna formed integrally into one piece simplifies the manufacture of the antenna lowers the manufacturing cost of the antenna.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 21, 2008
    Inventors: Cheng-Hsuan HSU, Chia-Wen Hsu, Tsung-Wen Chiu, Fu-Ren Hsiao
  • Publication number: 20080110499
    Abstract: A semiconductor material structure includes at least one region capable of generating electrons and holes each having an associated mean kinetic energy during operation. A material layer in proximity to the region provides an associated potential energy larger than the mean kinetic energy associated with the generated electrons and the mean kinetic energy associated with the holes.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 15, 2008
    Inventors: Kuei-Hsien Chen, Chien-Hung Lin, Chia-Wen Hsu, Li-Chyong Chen
  • Publication number: 20030218968
    Abstract: A disc with a plurality of rough passages. The rough passages are arranged on the top surface around a through hole of the disc, or on the ring protrusion of the readable under-surface. The rough passages are formed by printed ink or by punching the surface of the disc, and reduce vacuum adhesion between disks when stacked.
    Type: Application
    Filed: May 19, 2003
    Publication date: November 27, 2003
    Applicant: Daxon Technology Inc.
    Inventors: Chia-Wen Hsu, Li-Chuan Chiu
  • Publication number: 20030218967
    Abstract: An abrasion-resistant disc. The disc has a plurality of protrusions at the edge of the bottom surface. The protrusions prevent abrasion to the bottom surface of the disc.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 27, 2003
    Applicant: Daxon Technology Inc.
    Inventors: Chia-Wen Hsu, Li-Chuan Chiu, Ching-Kuan Lee