Patents by Inventor Wei Yu Chang
Wei Yu 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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Publication number: 20200393026Abstract: The linear driving mechanism includes a main body, a linear moving component, a guiding component and a driving component. The main body includes a seat and a moving shaft. The driving component is connected to a rotating shaft of the seat. The moving shaft passes through a driving slot formed on the linear moving component. The guiding component is for guiding a linear movement of the linear moving component. A stroke of the linear moving component of the linear driving mechanism can be changed by approaching or distancing the linear moving component and the seat of the main body to increase or decrease the displacement of the moving shaft located inside the driving slot. Therefore, the linear driving mechanism has not only simple structure but also flexibility in use.Type: ApplicationFiled: June 11, 2020Publication date: December 17, 2020Inventors: Wei-Yu Chang, Chih-Rong Chen
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Publication number: 20200243431Abstract: The present invention relates to a structure for packaging and the method for manufacturing the same. The structure for packaging comprise two or more metal members disposed on a substrate or a semiconductor device. A patterned layer and an insulation layer are disposed surrounding the metal members. There is a gap between the patterned layer and the insulation layer. Thereby, while bonding the metal members, metal spilling can be avoided, for further preventing the structure from short circuit or current leakage.Type: ApplicationFiled: October 22, 2019Publication date: July 30, 2020Inventors: CHIN-HAN CHOU, WEI-YU CHANG, GUAN-CHEN LIN, I-HSIEN LIN
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Patent number: 9343261Abstract: A combined round-multipole magnetic lens comprises a coil bracket, a first pole piece and a second pole piece. At least a first pole shoe of the first pole piece on the coil support and at least a second pole shoe of the second pole piece under the coil support respectively extend towards the central axis. The first pole shoe and the second pole shoe are symmetric according to the central axis, or the first pole shoes and the second pole shoes are respectively symmetrically arranged, and the angle difference between the first pole shoe and the adjacent second pole shoes is 360/2N degrees. A magnetic circuit gap is formed between the first pole shoe and the adjacent second pole shoe, for generating a magnetic field distribution of multi-poles and reducing the volume and the number of power supplies.Type: GrantFiled: November 6, 2014Date of Patent: May 17, 2016Assignee: NATIONAL TSING HUA UNIVERSITYInventors: Wei-Yu Chang, Fu-Rong Chen, Te-Hui Lee, Tsu-Wei Huang
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Patent number: 9305741Abstract: A wide range tunable magnetic lens for the desktop electron microscope is provided. The wired range tunable magnetic lens comprises a coil support, an inner pole piece, a permanent-magnet, a first outer pole piece and a second outer pole piece. The inner pole piece covers the coil support and forms a first magnetic-circuit gap. The permanent-magnet forms a ring structure according to the central axis and is disposed at the outer side of the inner pole piece away from the central axis. The first outer pole piece is adjacently disposed at the upper-side of the permanent-magnet and extends to the central hole of the coil support. The second outer pole piece is adjacently disposed at the under-side of the permanent-magnet and extends to the central hole of the coil support, wherein the first outer pole piece and the second outer pole piece forms a second magnetic-circuit gap.Type: GrantFiled: November 3, 2014Date of Patent: April 5, 2016Assignee: NATIONAL TSING HUA UNIVERSITYInventors: Wei-Yu Chang, Fu-Rong Chen, Te-Hui Lee, Tsu-Wei Huang
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Publication number: 20160042911Abstract: A combined round-multipole magnetic lens comprises a coil bracket, a first pole piece and a second pole piece. At least a first pole shoe of the first pole piece on the coil support and at least a second pole shoe of the second pole piece under the coil support respectively extend towards the central axis. The first pole shoe and the second pole shoe are symmetric according to the central axis, or the first pole shoes and the second pole shoes are respectively symmetrically arranged, and the angle difference between the first pole shoe and the adjacent second pole shoes is 360/2N degrees. A magnetic circuit gap is formed between the first pole shoe and the adjacent second pole shoe, for generating a magnetic field distribution of multi-poles and reducing the volume and the number of power supplies.Type: ApplicationFiled: November 6, 2014Publication date: February 11, 2016Inventors: WEI-YU CHANG, FU-RONG CHEN, TE-HUI LEE, TSU-WEI HUANG
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Publication number: 20160042910Abstract: A wide range tunable magnetic lens for the desktop electron microscope is provided. The wired range tunable magnetic lens comprises a coil support, an inner pole piece, a permanent-magnet, a first outer pole piece and a second outer pole piece. The inner pole piece covers the coil support and forms a first magnetic-circuit gap. The permanent-magnet forms a ring structure according to the central axis and is disposed at the outer side of the inner pole piece away from the central axis. The first outer pole piece is adjacently disposed at the upper-side of the permanent-magnet and extends to the central hole of the coil support. The second outer pole piece is adjacently disposed at the under-side of the permanent-magnet and extends to the central hole of the coil support, wherein the first outer pole piece and the second outer pole piece forms a second magnetic-circuit gap.Type: ApplicationFiled: November 3, 2014Publication date: February 11, 2016Inventors: WEI-YU CHANG, FU-RONG CHEN, TE-HUI LEE, TSU-WEI HUANG
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Patent number: 8375752Abstract: According to the present invention, a key box is provided to include: a body; a cover, pivotally connected with the body to render an open state and a closed state; and a panel set, embedded on the cover, comprising a keypad module and a lock module. Wherein, by manipulating either the keypad module or the lock module, the open state and the closed state can be switched.Type: GrantFiled: August 22, 2011Date of Patent: February 19, 2013Assignee: Shyh Ru Metallic Industrial Corp.Inventors: Wei-Yu Chang, Wei-Chih Chang
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Patent number: 8312654Abstract: A key tag includes: a body having a recess and a through hole near its one end, a tag sheet accommodated in the recess, and a cover sheet adaptively engaged with the body so as to confine the tag sheet within the recess.Type: GrantFiled: August 10, 2011Date of Patent: November 20, 2012Assignee: Shyh Ru Metallic Industrial Corp.Inventors: Wei-Yu Chang, Wei-Chih Chang
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Publication number: 20120042704Abstract: An electronic cash box including a body, a cover and a panel set is provided. The cover is pivotally connected to the body, and provides an open state and a closed state. The panel set includes a keypad module providing an electronic lock function and a lock module providing a mechanical lock function. By operating either the keypad module or the lock module, the open state and closed state can be switched.Type: ApplicationFiled: August 22, 2011Publication date: February 23, 2012Applicant: SHYH RU METALLIC INDUSTRIAL CORP.Inventors: WEI-YU CHANG, Wei-Chih Chang
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Publication number: 20120042550Abstract: A key tag includes: a body having a recess and a through hole near its one end, a tag sheet accommodated in the recess, and a cover sheet adaptively engaged with the body so as to confine the tag sheet within the recess.Type: ApplicationFiled: August 10, 2011Publication date: February 23, 2012Applicant: SHYH RU METALLIC INDUSTRIAL CORP.Inventors: Wei-Yu Chang, Wei-Chih Chang
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Publication number: 20120042703Abstract: According to the present invention, a key box is provided to include: a body; a cover, pivotally connected with the body to render an open state and a closed state; and a panel set, embedded on the cover, comprising a keypad module and a lock module. Wherein, by manipulating either the keypad module or the lock module, the open state and the closed state can be switched.Type: ApplicationFiled: August 22, 2011Publication date: February 23, 2012Applicant: SHYH RU METALLIC INDUSTRIAL CORP.Inventors: WEI-YU CHANG, Wei-Chih Chang
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Patent number: 7859840Abstract: A portable heat dissipation device is provided for operation with various devices of different purposes for heat dissipation therefrom and includes an enclosure and an air flow generation device. The air flow generation device is set in a given chamber inside the enclosure to effect flowing of air, causing air to enter through an inlet opening defined in a top of the enclosure and forcing the air flowing out through an outlet opening defined in a front wall of the enclosure. The portable heat dissipation device, when applied to remove heat, provides high performance of heat dissipation and effectively extended time interval of operation to thereby extend the lifespan of the device.Type: GrantFiled: February 1, 2010Date of Patent: December 28, 2010Inventors: Su-Ben Chang, Wei-Fu Chang, Wei-Yu Chang
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Publication number: 20100134977Abstract: A portable heat dissipation device is provided for operation with various devices of different purposes for heat dissipation therefrom and includes an enclosure and an air flow generation device. The air flow generation device is set in a given chamber inside the enclosure to effect flowing of air, causing air to enter through an inlet opening defined in a top of the enclosure and forcing the air flowing out through an outlet opening defined in a front wall of the enclosure. The portable heat dissipation device, when applied to remove heat, provides high performance of heat dissipation and effectively extended time interval of operation to thereby extend the lifespan of the device.Type: ApplicationFiled: February 1, 2010Publication date: June 3, 2010Inventors: SU-BEN CHANG, WEI-FU CHANG, WEI-YU CHANG
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Publication number: 20090180253Abstract: A portable heat dissipation device is provided for operation with various devices of different purposes for heat dissipation therefrom and includes an enclosure and an air flow generation device. The air flow generation device is set in a given chamber inside the enclosure to effect flowing of air, causing air to enter through an inlet opening defined in a top of the enclosure and forcing the air flowing out through an outlet opening defined in a front wall of the enclosure. The portable heat dissipation device, when applied to remove heat, provides high performance of heat dissipation and effectively extended time interval of operation to thereby extend the lifespan of the device.Type: ApplicationFiled: October 21, 2008Publication date: July 16, 2009Inventors: Su-Ben Chang, Wei-Fu Chang, Wei-Yu Chang
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Patent number: 7553061Abstract: A side type backlight module including a first light guide plate (LGP), a plurality of second LGPs, a plurality of red point light sources, a plurality of green point light sources, and a plurality of blue point light sources is provided. The first LGP has a first light emitting surface, a bottom surface, and a first light incident surface connecting the first light exit surface and the bottom surface. The second LGPs are disposed beside the first light incident surface. Further, a plurality of red, green, and blue point light sources is respectively disposed beside the second LGPs. The lights emitted by the red point light sources, the green point light sources, and the blue point light sources are blended to be a white light by each of the second LGPs and then incident to the first light incident surface.Type: GrantFiled: July 23, 2006Date of Patent: June 30, 2009Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Wei-Yu Chang, Ju-Yi Hsieh, Chih-Chun Hsiao
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Publication number: 20080019149Abstract: A side type backlight module including a first light guide plate (LGP), a plurality of second LGPs, a plurality of red point light sources, a plurality of green point light sources, and a plurality of blue point light sources is provided. The first LGP has a first light emitting surface, a bottom surface, and a first light incident surface connecting the first light exit surface and the bottom surface. The second LGPs are disposed beside the first light incident surface. Further, a plurality of red, green, and blue point light sources is respectively disposed beside the second LGPs. The lights emitted by the red point light sources, the green point light sources, and the blue point light sources are blended to be a white light by each of the second LGPs and then incident to the first light incident surface.Type: ApplicationFiled: July 23, 2006Publication date: January 24, 2008Applicant: CHUNGHWA PICTURE TUBES, LTD.Inventors: Wei-Yu Chang, Ju-Yi Hsieh, Chih-Chun Hsiao
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Publication number: 20060054678Abstract: A cash register money tray bill weight structure in which a base mount is disposed across the rear end of bill compartments in a cash register money tray, the selected base mount having a U-shaped hinge section at its front edge, with a pivot hole at each of the two sides of the U-shaped hinge section. The inner end areas of the two pivot holes are opened laterally outward and downward at an angle into symmetrical slanted surfaces, a stop section of relatively narrower width is articulated contiguously by lateral inward extension from the rear lateral upper end of the symmetrical slanted surfaces, and a notch-shaped detent section is contiguously formed at the rear side of each stop section.Type: ApplicationFiled: September 10, 2004Publication date: March 16, 2006Inventor: Wei-Yu Chang
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Patent number: 6860387Abstract: An improved self-lifting apparatus for a box cover including a bent bar locator on the box cover with both ends bended to accommodate an elastic component. The elastic component is provided with extended arms on both ends, one end pressing the bent bar and the other end being inserted into a hole of the box, thereby simplifying the production procedure and allowing box cover to be lifted automatically. With the elastic component, the bent bar is usable as a file holder in the box and the box can be used for a longer period of time.Type: GrantFiled: July 26, 2002Date of Patent: March 1, 2005Assignee: Shyh Ru Mettalic Industrial Corp.Inventor: Wei Yu Chang
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Publication number: 20040016675Abstract: An improved self-lifting apparatus for box cover comprising a -shaped bar provided on the box cover with both ends bended to accommodate elastic component. The elastic component is provided with extended arms on both ends, one end pressing the -shaped bar and the other end being inserted into the hole of the box, thereby simplifying the production procedure and allowing box cover to be lifted automatically. With the elastic component, the -shaped bar can be used as file holder in the box and the box can be used for a longer period of time.Type: ApplicationFiled: July 26, 2002Publication date: January 29, 2004Applicant: Shyh Ru Metallic Industrial Corp.Inventor: Wei Yu Chang
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Patent number: 6581422Abstract: The present invention consists of a molded locking device and opening device together with a cover provided on the top of box, a hook to facilitate locking, and a locking apparatus inside the box opposite to the opening device, and locking device. The present invention is known for two distinctive features: (1) a window provided on the shell of the opening device and a track on the edge of window to facilitate the movement of convex plates, and (2) holes in the lifting plate and locking plate and a folding plate between the lifting plate and opening device. The folding plate connects to one end of the locking plate to trigger the movement of the latch provided on the top of locking plate. Therefore, the design of present invention simplifies the assembly procedure of opening plate, lifting plate and locking plate; thereby reduces the manufacturing costs.Type: GrantFiled: February 4, 2002Date of Patent: June 24, 2003Assignee: Shyh Ru Metallic Industrial Corp.Inventor: Wei Yu Chang