Patents by Inventor Hai Chang
Hai 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: 20190217417Abstract: The invention relates to a temperature control system for additive manufacturing and method for same. The temperature control system comprises: a cladding device configured to fuse a material and form a cladding layer, the cladding device comprising a first energy source; a micro-forging device coupled to the cladding device for forging the cladding layer; a detecting device; a control module; and an adjusting module coupled to at least one of the first energy source and the micro-forging device.Type: ApplicationFiled: January 9, 2019Publication date: July 18, 2019Inventors: Yong Wu, Yingna Wu, Zirong Zhai, Hai Chang, Yifeng Wang, Yimin ZHAN, Dalong Zhong
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Publication number: 20190201981Abstract: A forging head for additive manufacturing, comprising a base portion and a forging portion. The forging portion extends from the base portion for forging a cladding layer during formation of the cladding layer by additive manufacturing. The forging head further comprising a through hole which is formed through the base portion and the forging portion, for at least one of an energy bean and an additive material to pass through during formation of the cladding layer.Type: ApplicationFiled: December 21, 2018Publication date: July 4, 2019Inventors: Hai Chang, Dalong Zhong, Yingna Wu, Yong Wu, Zirong Zhai, Yifeng Wang
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Patent number: 9322714Abstract: A method of manufacturing a particle-based image display having a plurality of imaging cells is disclosed. The method includes filling the plurality of imaging cells with a plurality of first particles, identifying a defect associated with one or more of the imaging cells, and repairing the defect within a unit corresponding to part of the plurality of imaging cells.Type: GrantFiled: November 25, 2014Date of Patent: April 26, 2016Assignee: DELTA ELECTRONICS, INC.Inventors: Jui-Yu Lin, Jen-Ming Chang, Jiunn-Jye Hwang, Jung-Yang Juang, Ming-Hai Chang, Hao-Jan Wan
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Publication number: 20150121316Abstract: Embodiments of the invention disclose a method for unlocking a touch-sensitive device and a touch-sensitive device, which resolves a problem that a user always performs unlocking by inputting a default password or by using a default preset graphical interaction interface of the touch-sensitive device, which is monotonous and uninteresting. The method includes: receiving, by the touch-sensitive device, a second unlocking manner input by a user; and unlocking itself by the touch-sensitive device if the second unlocking manner is the same as a first unlocking manner, where the first unlocking manner is preset by the user according to an unlocking feature, and the unlocking feature is position-related and is preset by the user. The present invention is applicable to unlocking a touch-sensitive device having a touchscreen, such as a touchscreen mobile phone or a tablet computer.Type: ApplicationFiled: December 31, 2014Publication date: April 30, 2015Inventor: Hai Chang
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Publication number: 20150113784Abstract: A method of manufacturing a particle-based image display having a plurality of imaging cells is disclosed. The method includes filling the plurality of imaging cells with a plurality of first particles, identifying a defect associated with one or more of the imaging cells, and repairing the defect within a unit corresponding to part of the plurality of imaging cells.Type: ApplicationFiled: November 25, 2014Publication date: April 30, 2015Inventors: Jui-Yu LIN, Jen-Ming CHANG, Jiunn-Jye HWANG, Jung-Yang JUANG, Ming-Hai CHANG, Hao-Jan WAN
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Patent number: 8976349Abstract: A method of manufacturing a particle-based image display having a plurality of imaging cells is disclosed. The method includes filling the plurality of imaging cells with a plurality of first particles, identifying a defect associated with one or more of the imaging cells, and repairing the defect within a unit corresponding to part of the plurality of imaging cells.Type: GrantFiled: March 30, 2012Date of Patent: March 10, 2015Assignee: Delta Electronics, Inc.Inventors: Jui-Yu Lin, Jen-Ming Chang, Jiunn-Jye Hwang, Jung-Yang Juang, Ming-Hai Chang, Hao-Jan Wan
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Patent number: 8773744Abstract: A 3D image display system with high resolution is disclosed. The system may deflect left and right eye images to a left and right eye of a viewer, respectively. As such, the viewer can see 3D images. With a time-sharing mode, all of electronically switchable light modulating cells are configured to modulate all of the images deflected to the left eye of the viewer during a first period, and modulate all of the images to the right eye of the viewer during a second period, and the first period and the second period are alternate periods. Alternatively, a part of the electronically switchable light modulating cells are configured to modulate left eye images deflected to the left eye of the viewer, and another part of the electronically switchable light modulating cells are configured to modulate right eye images to the right eye of the viewer during the same period.Type: GrantFiled: January 28, 2011Date of Patent: July 8, 2014Assignee: Delta Electronics, Inc.Inventors: Rong-Chang Liang, Ming-Wei Tsai, Ming-Hai Chang, Ching-Tung Hsu, Chia-Yen Lee, Keh-Su Chang
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Publication number: 20140181143Abstract: Embodiments of the present invention provide a file presentation method and apparatus, and relate to the field of data management, which can help a user manage and view data. The file presentation method includes: obtaining files and file information typed by a user and corresponding to the files; extracting keywords from the file information corresponding to the files and using the keywords as tags of the files; and presenting files with a same tag according to a preset rule. The present invention can be applied in data management and viewing.Type: ApplicationFiled: December 20, 2013Publication date: June 26, 2014Applicant: Huawei Technologies Co., Ltd.Inventors: Hai Chang, Zhiyou Guo, Rui Li
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Publication number: 20130255054Abstract: A method of manufacturing a particle-based image display having a plurality of imaging cells is disclosed. The method includes filling the plurality of imaging cells with a plurality of first particles, identifying a defect associated with one or more of the imaging cells, and repairing the defect within a unit corresponding to part of the plurality of imaging cells.Type: ApplicationFiled: March 30, 2012Publication date: October 3, 2013Inventors: Jui-Yu LIN, Jen-Ming Chang, Jiunn-Jye Hwang, Jung-Yang Juang, Ming-Hai Chang, Hao-Jan Wan
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Patent number: 8305425Abstract: A panoramic camera system is disclosed that includes an unified optical system, an image capture device, and a processing unit. The unified optical system may include a first set of lenses that guide images received from horizontal directions of a target scene that surrounds the unified optical system. The unified optical system may also include a deflecting device that deflects the images guided through the first set of lenses and a second set of lenses that projects the images deflected by the deflecting device. The image capture device collects the projected images into a determined pattern based on the second set of lenses. Moreover, the processing unit processes the collected images from the image capture device to generate at least one of image signals and video signals representing a panoramic rendition of the target scene.Type: GrantFiled: August 21, 2009Date of Patent: November 6, 2012Assignee: Promos Technologies, Inc.Inventors: Mei Len, Chin-Hai Chang
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Patent number: 8268036Abstract: Disclosed is a method of producing ultra low phosphorus and carbon ferromanganese having 0.1 wt % or less carbon and 0.03 wt % or less phosphorus. The method includes preparing low carbon silicomanganese having low phosphorus content, preparing molten manganese slag, subjecting the molten manganese slag and the low carbon silicomanganese having low phosphorus content to primary mixing and stirring at a ratio of 70˜72:28˜30 in a ladle, thus producing a metal melt and slag, and subjecting the metal melt separated from the above slag and the molten manganese slag identical to that used in the primary mixing and stirring to secondary mixing and stirring, thus producing slag and a metal melt including 91˜93 wt % manganese, 0.60˜0.85 wt % silicon, 0.05˜0.10 wt % carbon and 0.015˜0.02 wt % phosphorus.Type: GrantFiled: November 19, 2008Date of Patent: September 18, 2012Assignee: Dongbu Metal Co., Ltd.Inventors: Dong-Shik Min, Chan-Soo Park, Young-Eun Lee, Hai-Chang Cho, Kwang-Jung Lee, Sung-Hwan Hong
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Publication number: 20120194563Abstract: A 3D image display system with high resolution is disclosed. The system may deflect left and right eye images to a left and right eye of a viewer, respectively. As such, the viewer can see 3D images. With a time-sharing mode, all of electronically switchable light modulating cells are configured to modulate all of the images deflected to the left eye of the viewer during a first period, and modulate all of the images to the right eye of the viewer during a second period, and the first period and the second period are alternate periods. Alternatively, a part of the electronically switchable light modulating cells are configured to modulate left eye images deflected to the left eye of the viewer, and another part of the electronically switchable light modulating cells are configured to modulate right eye images to the right eye of the viewer during the same period.Type: ApplicationFiled: January 28, 2011Publication date: August 2, 2012Inventors: Rong-Chang LIANG, Ming-Wei Tsai, Ming-Hai Chang, Ching-Tung Hsu, Chia-Yen Lee, Keh-Su Chang
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Publication number: 20110265608Abstract: Disclosed is a method of producing ultra low phosphorus and carbon ferromanganese having 0.1 wt % or less carbon and 0.03 wt % or less phosphorus. The method includes preparing low carbon silicomanganese having low phosphorus content, preparing molten manganese slag, subjecting the molten manganese slag and the low carbon silicomanganese having low phosphorus content to primary mixing and stirring at a ratio of 70˜72:28˜30 in a ladle, thus producing a metal melt and slag, and subjecting the metal melt separated from the above slag and the molten manganese slag identical to that used in the primary mixing and stirring to secondary mixing and stirring, thus producing slag and a metal melt including 91˜93 wt % manganese, 0.60˜0.85 wt % silicon, 0.05˜0.10 wt % carbon and 0.015˜0.02 wt % phosphorus.Type: ApplicationFiled: November 19, 2008Publication date: November 3, 2011Inventors: Dong-Shik Min, Chan-Soo Park, Young-Eun Lee, Hai-Chang Cho, Kwang-Jung Lee, Sung-Hwan Hong
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Publication number: 20100045774Abstract: A panoramic camera system is disclosed that includes an unified optical system, an image capture device, and a processing unit. The unified optical system may include a first set of lenses that guide images received from horizontal directions of a target scene that surrounds the unified optical system. The unified optical system may also include a deflecting device that deflects the images guided through the first set of lenses and a second set of lenses that projects the images deflected by the deflecting device. The image capture device collects the projected images into a determined pattern based on the second set of lenses. Moreover, the processing unit processes the collected images from the image capture device to generate at least one of image signals and video signals representing a panoramic rendition of the target scene.Type: ApplicationFiled: August 21, 2009Publication date: February 25, 2010Inventors: Mei LEN, Chin-Hai Chang
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Patent number: 7574946Abstract: The present invention provides an improved magnetic assembly of a screwdriver head rod. The assembly includes a cylindrical body, available with a trepan boring for sleeving onto the screwdriver head rod. The first end of the cylindrical body is provided with a magnetic body groove. A magnetic body is assembled into the magnetic body groove. At least two flexible locating detents are prefabricated onto the second end of the cylindrical body. The flexible locating detent has a flexible section and locating flange. The locating flange is protruded into the trepan boring of the cylindrical body. It is possible to preserve the components of magnetic assembly, reduce the manufacturing costs, and improve the assembly performance and endurance with better industrial benefits and applicability.Type: GrantFiled: March 19, 2008Date of Patent: August 18, 2009Inventor: Wun-Hai Chang
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Publication number: 20080047075Abstract: The present invention provides a positioning structure for a sliding magnetic sheath of a screwdriver. The tube-shape body is placed over the outer edge of the screwdriver head, and one end of the tube-shape body has a magnetic body. There is a block component placed inside the sheathing hole of the tube-shape body, and the block component includes at least a protruding block and an elastic retractor. The protruding block can be placed against the blocking edge inside the tube-shape body. A tapered indent ring is added on the end of screwdriver head near the functional end, and a tapered slot can be placed near the functional end of the tapered indent ring for the elastic retractor of the block component to insert. The sliding sheath in the present invention can be made in a simpler process, with less cost, and more flexibility.Type: ApplicationFiled: August 28, 2006Publication date: February 28, 2008Inventor: Wun-Hai CHANG
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Patent number: 7234738Abstract: A casing assembly includes a casing having a receiving space and an entrance, and a lid mounted detachably in the entrance to deny access into the space. A fastening device is disposed in the casing, and includes a blocking plate and a resilient clip urging the blocking plate to rotate in a predetermined direction to engage the same with the lid, thereby preventing removal of the lid from the casing. The lid may include a downwardly extending tongue which passes through a hole in the casing and is to be engaged by a hook-like portion on the end of the blocking plate.Type: GrantFiled: August 11, 2005Date of Patent: June 26, 2007Assignee: Inventec Applicances Corp.Inventors: Johnson Tsao, Hsin-Chih Liu, Wang-Hai Chang
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Publication number: 20070037451Abstract: A casing assembly includes a casing having a receiving space and an entrance, and a lid mounted detachably in the entrance to deny access into the space. A fastening device is disposed in the casing, and includes a blocking plate and a resilient clip urging the blocking plate to rotate in a predetermined direction to engage the same with the lid, thereby preventing removal of the lid from the casing.Type: ApplicationFiled: August 11, 2005Publication date: February 15, 2007Inventors: Johnson Tsao, Hsin-Chih Liu, Wang-Hai Chang
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Patent number: 7107882Abstract: A slip-resistant magnetic sheath includes a hollow sleeve that can be fit onto the screwdriver's shank. A magnetic part positioned at least on one end of the hollow sleeve, provides auxiliary attraction to improve the connection between the shank and the screw with a fastening rim and groove set correspondingly on the sleeve of the magnetic sheath and the shank. The groove allows the fastening rim to move within a pre-set distance so that the magnetic sheath can slide within certain distance and not fall off the shank. The invention installed on an electrical screwdriver can effectively address the slipping problem caused by shocking. The forceful magnetic attraction of the magnetic sheath can prevent the screws from slipping and therefore improve working efficiency.Type: GrantFiled: October 1, 2004Date of Patent: September 19, 2006Inventor: Wun-Hai Chang
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Patent number: 6643841Abstract: A tape-out system of a mask tooling network for multiple supply chain. The tape-out system includes an integrated circuit (IC) designer computer, a design service computer, and a mask house computer; wherein the IC designer computer, the design service computer and the mask house computer are the multi-users for the tape-out system. A network connects the IC designer computer, the design service computer and the mask house computer. A device design data and a product mask data are provided through the network from the IC designer computer to the design service computer. The device design data and the product mask data undergo a processing step and a summarizing step, so that a product mask tooling data is obtained, which is then transmitted through the network to the mark house computer and the IC designer computer. The mask house computer fabricates a mask in accordance with the product mask tooling data.Type: GrantFiled: September 19, 2001Date of Patent: November 4, 2003Assignee: United Microelectronics Corp.Inventors: Chin-Hai Chang, Teh-Sen Perng