Patents by Inventor Hsin Chung Chang
Hsin Chung 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: 20240096686Abstract: A focus has an opening and an upper surface surrounding the opening. The opening is configured to accommodate a SiC wafer. The SiC wafer has a first surface and a second surface opposite to the first surface. When the focus ring is mounted in a semiconductor wafer processing apparatus and the SiC wafer is positioned in the opening of the focus ring, the upper surface of the focus ring is lower than the first surface of the SiC wafer and is higher than the second surface of the SiC wafer.Type: ApplicationFiled: February 15, 2023Publication date: March 21, 2024Inventors: Chia-Jen CHANG, Hsin-Chung HO
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Publication number: 20230068228Abstract: A portable information handling system pivots a hinge rotational axis as the hinge rotates housing portions between open and closed positions to manage a gap between the housing portions. For example, the hinge couples a base at a perimeter of one housing portion, the base having a many body that slides on sliding members of the base and that supports a bracket extending inward to couple to another housing portion. A bracket gear engages with a pinion gear included in the main body to translate bracket rotation through the pinion gear to a rack integrated in the base, thereby sliding the main body relative to the base as the housing portions rotate so that the distance between the housing portions adjusts with rotational orientation.Type: ApplicationFiled: September 1, 2021Publication date: March 2, 2023Applicant: Dell Products L.P.Inventors: Anthony J. Sanchez, Michael J. Pescetto, Boris Draca, Hsin-Chung Chang, Jui-Hung Chang
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Patent number: 11009061Abstract: The present invention provides a hidden type split hinge. First and second curved tracks are provided on a curved seat body for respectively limiting a first and second curved blocks of first and second rotating members in a way of being relatively swung. First and second torsion units are symmetrical and adjacently provided to a first side of the curved seat body, and one end of the first and second torsion units is respectively provided with first and second pivoting holes, and the first and second pivoting holes are respectively in communication with first and second elongated opening holes, first and second tooth portions are respectively provided around peripheries of the first and second pivoting holes, and the first tooth portion is engaged with the second tooth portion, and the first and second pivoting hole are axially connected to the first and second shaft ends of a first lateral surface.Type: GrantFiled: September 6, 2019Date of Patent: May 18, 2021Assignee: Jarllytec Co., Ltd.Inventors: Jui-Hung Chang, Hsin-Chung Chang
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Publication number: 20200392983Abstract: The present invention provides a hidden type split hinge. First and second curved tracks are provided on a curved seat body for respectively limiting a first and second curved blocks of first and second rotating members in a way of being relatively swung. First and second torsion units are symmetrical and adjacently provided to a first side of the curved seat body, and one end of the first and second torsion units is respectively provided with first and second pivoting holes, and the first and second pivoting holes are respectively in communication with first and second elongated opening holes, first and second tooth portions are respectively provided around peripheries of the first and second pivoting holes, and the first tooth portion is engaged with the second tooth portion, and the first and second pivoting hole are axially connected to the first and second shaft ends of a first lateral surface.Type: ApplicationFiled: September 6, 2019Publication date: December 17, 2020Inventors: Jui-Hung CHANG, Hsin-Chung CHANG
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Patent number: 10520992Abstract: A hinge module for a foldable type device has one end-surface connected to a flexible display and has another end-surface respectively connected to a first housing and a second housing. The hinge module comprises a base and a first sliding mechanism. The first sliding mechanism comprises a first supporting plate, a first sliding cover, a first linkage rod, a linkage plate and at least one first restoring member. The first supporting plate and the linkage plate are respectively pivotally connected to the first-lateral-pivoting-portion and the first-central-pivoting-portion. A second limiting portion of a first sliding cover is used to limit the first limiting portion of the first supporting plate in a way of relatively sliding. Thus, when the first limiting portion slides relative to the second limiting portion, the first supporting plate is moved to accommodate the curved-central-part of the flexible display.Type: GrantFiled: May 14, 2019Date of Patent: December 31, 2019Assignee: JARLLYTEC CO., LTD.Inventors: Jui-Hung Chang, Hsin-Chung Chang
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Publication number: 20120222947Abstract: A keypad structure and method of fabricating the keypad structure are disclosed, in which, an edge of a hollowed pattern of a light-shielding color layer and an edge of a hollowed pattern of a keycap color layer are allowed to be aligned with each other, to prevent the keypad pattern from suffering a halo issue.Type: ApplicationFiled: June 8, 2011Publication date: September 6, 2012Inventor: Hsin-Chung Chang
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Patent number: 6470880Abstract: A range hood is constructed to include a body formed of a bottom panel, a locating plate supported on the bottom panel, a top panel mounted on the locating plate, a front control panel and a rear panel respectively fastened to the top and bottom panels at the front and rear sides, and two wind guides adjustably fastened to the locating plate and protruded over two sides of the bottom panel for guiding escaped waste gas into the inside of the body, a wind box mounted in the body to hold a fan for drawing waste gas into the body through a main suction hole in the bottom panel and suction holes in side flanges of the bottom panel, and an exhaust pipe sleeved onto the wind box and extended out of the body for guiding out waste gas from the wind box and the body.Type: GrantFiled: March 8, 2002Date of Patent: October 29, 2002Assignee: Enlight Corp.Inventor: Hsin-Chung Chang
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Patent number: 6435964Abstract: A ventilation fan includes a case-like frame having an opening and a rib in the opening, a motor fastened to the rib inside the case-like frame, a face cover detachably covered on the case-like frame, the face cover having air inlets in communication with the opening of the case-like frame, a centrifugal fan fastened to. the motor shaft of the motor and disposed outside the case-like frame, and a wind box detachably covered on the outside of the case-like frame over the centrifugal fan.Type: GrantFiled: September 6, 2001Date of Patent: August 20, 2002Assignee: Enlight CorporationInventor: Hsin Chung Chang
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Patent number: 5694315Abstract: A novel method for scanning multiple images in a single scanning process is disclosed. The process utilizes at least a frame holder, which contains a front frame section and a back frame section that are glued together at their top edges and are separable at least at their bottom to allow a sheet of scanning material to be placed therebetween. Each of the front and back frame sections contains a cluster of matching orientation holes on their right and left sides with a predetermined pattern to allow a computer program to achieve scan area recognition and orientation. During the scanning process, the at least one frame holder containing the image is scanned, wherein the sides of the frame holder are detected as black signals and the orientation holes are detected as white signals. Then a computer program is used to perform a previewing recognition process by detecting and carving out a scanning area corresponding to each frame holder based on the black signals and the white signals of the frame holder.Type: GrantFiled: June 6, 1995Date of Patent: December 2, 1997Assignee: Umax Data Systems, Inc.Inventors: Wei-Jen Huang, Ming-Mu Hsieh, Hsi-Chin Chen, Hsin-Chung Chang, Alpha Tsay
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Patent number: D483387Type: GrantFiled: August 9, 2002Date of Patent: December 9, 2003Assignee: Tranwo Technology Corp.Inventors: Hsin-Chung Chang, Ching-Cheng Wu
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Patent number: D500036Type: GrantFiled: March 1, 2004Date of Patent: December 21, 2004Assignee: Tranwo Technology Corp.Inventors: Hsin Chung Chang, Kuo Hsiung Chang