Patents by Inventor Yen-Po Chang
Yen-Po Chang 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: 11640105Abstract: A projector includes a light source module, a light valve, and a projection lens. The light source module is adapted to provide an illumination light beam and includes a base having first and second side surfaces, first and second color light-emitting units respectively disposed on the first and second side surfaces, and first and second heat dissipation structures respectively connected to the first and second color light-emitting units. The first and second heat dissipation structures are separated from each other and define an accommodation space together. The light valve is located on a transmission path of the illumination light beam and adapted to convert the illumination light beam into an image light beam. The projection lens is located on a transmission path of the image light beam and adapted to project the image light beam.Type: GrantFiled: October 26, 2021Date of Patent: May 2, 2023Assignee: Coretronic CorporationInventors: Chien-Ming Peng, Yen-Po Chang, Mao-Min Fu, Wei-Min Chien
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Publication number: 20230015029Abstract: A projector includes a light source module, a light valve, and a projection lens. The light source module is adapted to provide an illumination light beam and includes a base having first and second side surfaces, first and second color light-emitting units respectively disposed on the first and second side surfaces, and first and second heat dissipation structures respectively connected to the first and second color light-emitting units. The first and second heat dissipation structures are separated from each other and define an accommodation space together. The light valve is located on a transmission path of the illumination light beam and adapted to convert the illumination light beam into an image light beam. The projection lens is located on a transmission path of the image light beam and adapted to project the image light beam.Type: ApplicationFiled: October 26, 2021Publication date: January 19, 2023Applicant: Coretronic CorporationInventors: Chien-Ming Peng, Yen-Po Chang, Mao-Min Fu, Wei-Min Chien
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Patent number: 11256164Abstract: An optical element includes a prism and a light blocking member. The prism has a first surface, a second surface and a third surface. The first surface is connected to the second surface. The third surface is connected between the first and second surfaces and opposite to a light valve of a projection device. The first surface reflects an image light beam from the light valve to allow the image light beam to pass through the second surface. The light blocking member is disposed on the prism and includes a first light blocking portion and a second light blocking portion adjacent to each other. The first light blocking portion shields a part of the first surface adjacent to the second surface, and the second light blocking portion shields a part of the second surface adjacent to the first surface. A projection device using the optical element is also provided.Type: GrantFiled: March 9, 2021Date of Patent: February 22, 2022Assignee: Coretronic CorporationInventors: Mao-Min Fu, Hung-Pin Chen, Yen-Po Chang, Chien-Ming Peng
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Publication number: 20210286239Abstract: An optical element includes a prism and a light blocking member. The prism has a first surface, a second surface and a third surface. The first surface is connected to the second surface. The third surface is connected between the first and second surfaces and opposite to a light valve of a projection device. The first surface reflects an image light beam from the light valve to allow the image light beam to pass through the second surface. The light blocking member is disposed on the prism and includes a first light blocking portion and a second light blocking portion adjacent to each other. The first light blocking portion shields a part of the first surface adjacent to the second surface, and the second light blocking portion shields a part of the second surface adjacent to the first surface. A projection device using the optical element is also provided.Type: ApplicationFiled: March 9, 2021Publication date: September 16, 2021Inventors: MAO-MIN FU, HUNG-PIN CHEN, YEN-PO CHANG, CHIEN-MING PENG
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Patent number: 10989991Abstract: An adjustment device for adjusting an up-down displacement of an optical engine module of a projection device includes a bracket, at least one adjustment zone, at least one flexible element, and at least one adjustment element. The bracket is disposed inside the projection device. The at least one adjustment zone is located at the optical engine module. There is a gap between the optical engine module and the bracket. The at least one flexible element is abutted between the bracket and the optical engine module. The at least one adjustment element is movably disposed through the at least one adjustment zone. A distance between the at least one adjustment zone of the optical engine module and the bracket is adjusted by an operation of the at least one adjustment element. A projection device using the adjustment device is also provided.Type: GrantFiled: December 4, 2019Date of Patent: April 27, 2021Assignee: Coretronic CorporationInventors: Yun-Sheng Wang, Mao-Min Fu, Yen-Po Chang, Chien-Ming Peng
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Publication number: 20200341354Abstract: An adjustment device for adjusting an up-down displacement of an optical engine module of a projection device includes a bracket, at least one adjustment zone, at least one flexible element, and at least one adjustment element. The bracket is disposed inside the projection device. The at least one adjustment zone is located at the optical engine module. There is a gap between the optical engine module and the bracket. The at least one flexible element is abutted between the bracket and the optical engine module. The at least one adjustment element is movably disposed through the at least one adjustment zone. A distance between the at least one adjustment zone of the optical engine module and the bracket is adjusted by an operation of the at least one adjustment element. A projection device using the adjustment device is also provided.Type: ApplicationFiled: December 4, 2019Publication date: October 29, 2020Inventors: YUN-SHENG WANG, MAO-MIN FU, YEN-PO CHANG, CHIEN-MING PENG
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Patent number: 9040198Abstract: An energy storage composite particle is provided, which includes a carbon film, a conductive carbon component, an energy storage grain, and a conductive carbon fiber. The carbon film surrounds a space. The conductive carbon component and the energy storage grain are disposed in the space. The conductive carbon fiber is electrically connected to the conductive carbon component, the energy storage grain, and the carbon film, and the conductive carbon fiber extends from the inside of the space to the outside of the space. The energy storage composite particle has a high gravimetric capacity, a high coulomb efficiency, and a long cycle life. Furthermore, a battery negative electrode material and a battery using the energy storage composite particle are also provided.Type: GrantFiled: September 9, 2011Date of Patent: May 26, 2015Assignee: Industrial Technology Research InstituteInventors: Jin-Ming Chen, Yen-Po Chang, Shih-Chieh Liao, Chi-Ju Cheng
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Publication number: 20140307233Abstract: A projection apparatus includes a casing with an opening, a light-emitting unit in the casing and emitting a first projection beam, and a reflective component in the casing and on a transmission path of the first projection beam. The first projection beam reflected by the reflective component becomes a second projection beam projected out via the opening along a projection direction. The light-emitting unit includes a projection lens with an optical axis between a center of the reflective component and the opening of the casing.Type: ApplicationFiled: December 12, 2013Publication date: October 16, 2014Applicant: YOUNG OPTICS INC.Inventors: Yen-Po Chang, Hui-Ping Chen
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Publication number: 20120164531Abstract: An energy storage composite particle is provided, which includes a carbon film, a conductive carbon component, an energy storage grain, and a conductive carbon fiber. The carbon film surrounds a space. The conductive carbon component and the energy storage grain are disposed in the space. The conductive carbon fiber is electrically connected to the conductive carbon component, the energy storage grain, and the carbon film, and the conductive carbon fiber extends from the inside of the space to the outside of the space. The energy storage composite particle has a high gravimetric capacity, a high coulomb efficiency, and a long cycle life. Furthermore, a battery negative electrode material and a battery using the energy storage composite particle are also provided.Type: ApplicationFiled: September 9, 2011Publication date: June 28, 2012Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jin-Ming Chen, Yen-Po Chang, Shih-Chieh Liao, Chi-Ju Cheng
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Publication number: 20120009477Abstract: An anode material of rapidly chargeable lithium battery and a manufacturing method thereof are provided. The anode material includes a carbon core and a modification layer. The modification layer is formed on a surface of the carbon core by sol-gel method. This modification layer is a composite lithium metal oxide represented by the formula Li4M5O12-MOx, wherein M represents Ti or Mn, and 1?x?2.Type: ApplicationFiled: September 28, 2010Publication date: January 12, 2012Applicant: Industrial Technology Research InstituteInventors: Jin-Ming Chen, Yen-Po Chang, Shih-Chieh Liao, Yu-Min Peng, Chi-Ju Cheng, Meng-Lun Lee