Patents by Inventor Wen-Cheng Chang
Wen-Cheng 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: 20190300615Abstract: The present disclosure provides an antibody-containing aqueous formulation, comprising a therapeutically effective amount of an anti-interleukin-6 receptor antibody, a protein stabilizer, a surfactant, and a buffer. The buffer is an acetate buffer or a histidine buffer, and the antibody-containing aqueous formulation has a pH ranging from 4.5 to 6.5.Type: ApplicationFiled: April 1, 2019Publication date: October 3, 2019Inventors: JHENG-GANG YANG, JIUNG-LIANG LIU, WEN-CHENG CHANG
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Publication number: 20190067638Abstract: The present invention discloses an encapsulation layer structure including a first organic layer, an inorganic thin film, and a second organic layer. The first organic layer has a bottom surface and a first wavy surface opposite to the bottom surface. The first wavy surface has a plurality of peak portions and a plurality of valley portions, and the peak portions and valley portions are alternately arranged with each other. The inorganic thin film is conformally disposed on the first wavy surface of the first organic layer, and the inorganic thin film has a second wavy surface opposite to the first wavy surface. The second organic layer is over the second wavy surface of the inorganic thin film. This encapsulation layer structure may prevent the penetration of oxygen and moisture effectively.Type: ApplicationFiled: November 1, 2017Publication date: February 28, 2019Inventors: Ching-Yu HUANG, Ming-Hsiang LAI, Ying-Hung CHUANG, Yi-Fan NIU, Wen-Cheng CHANG
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Patent number: 9958002Abstract: A dust-proof safety hook contains: a body, a connection shaft, a returning element, a housing sleeve, a resilient element, a rotary sheath, and a positioning bolt. The body includes an accommodation space, an opening, a first segment, and a second segment. The connection shaft includes a first part and a second part, and the returning element is mounted between the body and the connection shaft. The housing sleeve includes a slot which has a limiting portion and two notches. The resilient element is fitted with the connection shaft, and the rotary sheath includes a through orifice and a cut. The positioning bolt is inserted into the through orifice of the rotary sheath and the limiting portion of the slot of the housing sleeve, such that the rotary sheath moves along the slot of the housing sleeve by way of the positioning bolt.Type: GrantFiled: July 18, 2016Date of Patent: May 1, 2018Assignee: Win Chance Metal Co., Ltd.Inventor: Wen-Cheng Chang
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Publication number: 20180017095Abstract: A dust-proof safety hook contains: a body, a connection shaft, a returning element, a housing sleeve, a resilient element, a rotary sheath, and a positioning bolt. The body includes an accommodation space, an opening, a first segment, and a second segment. The connection shaft includes a first part and a second part, the returning element is mounted between the body and the connection shaft. The housing sleeve includes a slot which has a limiting portion and two notches. The resilient element is fitted with the connection shaft, and the rotary sheath includes a through orifice and a cut. The positioning bolt is inserted into the through orifice of the rotary sheath and the limiting portion of the slot of the housing sleeve, such that the rotary sheath moves along the slot of the housing sleeve by way of the positioning bolt.Type: ApplicationFiled: July 18, 2016Publication date: January 18, 2018Inventor: Wen-Cheng Chang
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Patent number: 9837716Abstract: A multiband antenna is provided. A resonance path is provided by a first connection segment and a low-frequency radiating element with a closed pattern to enable the multiband antenna to support a low frequency band, wherein a first side of the closed pattern is wider than a second side of the closed pattern. The second side of the closed pattern is connected to one end of the first connection segment. The other end of the first connection segment is connected to a feed element.Type: GrantFiled: March 21, 2016Date of Patent: December 5, 2017Assignee: Getac Technology CorporationInventors: Jia-Min Huang, Wen-Cheng Chang
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Publication number: 20170271763Abstract: A multiband antenna is provided. A resonance path is provided by a first connection segment and a low-frequency radiating element with a closed pattern to enable the multiband antenna to support a low frequency band, wherein a first side of the closed pattern is wider than a second side of the closed pattern. The second side of the closed pattern is connected to one end of the first connection segment. The other end of the first connection segment is connected to a feed element.Type: ApplicationFiled: March 21, 2016Publication date: September 21, 2017Inventors: Jia-Min Huang, Wen-Cheng Chang
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Patent number: 9350616Abstract: A software module on a client computer sends a query to a remote computer server operating a cloud service and receives a response, in order to determine latency. The latency is used with the total size of the packets sent and the packet size to determine the bandwidth available over the network connection at that time. Bandwidth available is calculated periodically and stored in a database of the client computer. Comparing a calculated bandwidth with predefined threshold values indicates whether the network status is good for initiating a cloud service with the computer server or poor. Any number of bandwidth available values are used to determine a slope and the slope is used to predict a bandwidth available value at a future time. A bandwidth available moving average is calculated by summing the bandwidth values for the previous days and dividing by the number of days; the moving average is calculated periodically.Type: GrantFiled: May 11, 2010Date of Patent: May 24, 2016Assignee: Trend Micro Inc.Inventors: Ju-Chun Lou, Wen-Cheng Chang, Yen-Chiu Ku, Ren-Chien Chou, Jui-Hao Lin
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Patent number: 9206830Abstract: A flexible positioning post includes a base, a metal post and a plurality of metal elastic pieces. The base has an upper surface. The metal post has a first end and a second end opposite to each other, and the first end is connected to the upper surface of the base. Each of the metal elastic pieces has a fixed end and a free end opposite to each other. The fixed end is securely assembled at the second end of the metal post, and the free end is adjacent to the upper surface of the base and bent toward the metal post to form a bending portion. Consequently, upon receiving a foreign force, the free end of each of the metal elastic pieces is moved toward the metal post; conversely, once the foreign force is removed, the free end of each of the metal elastic pieces is moved resiliently.Type: GrantFiled: February 12, 2014Date of Patent: December 8, 2015Assignee: WISTRON CORPORATIONInventors: Kuo-Cheng Lu, Wen-Cheng Chang
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Patent number: 9114750Abstract: A hand puller with a rope reel contains a body and a reel. The body includes a fixing holder, a first rotary shaft, a rotating handle, two ratchet wheels, and at least one stopping piece. The rotating handle having a pushing plate, and the first rotary shaft has two driving gears. The reel includes a seat, a second rotary shaft, two driven gears, and a chain roller. The body includes a first connecting portion with plural holes, and the seat has a second connecting portion and a plurality of apertures. The reel and the body are movably coupled together, and the second connecting portion of the reel is aligned and overlapped with the first connecting portion of the body. At least one pin is inserted into at least one of the plural holes of the first connecting portion and the plurality of apertures of the second connecting portion.Type: GrantFiled: December 3, 2013Date of Patent: August 25, 2015Assignee: Win Chance Metal Co., Ltd.Inventor: Wen Cheng Chang
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Publication number: 20150151664Abstract: A hand puller with a rope reel contains a body and a reel. The body includes a fixing holder, a first rotary shaft, a rotating handle, two ratchet wheels, and at least one stopping piece. The rotating handle having a pushing plate, and the first rotary shaft has two driving gears. The reel includes a seat, a second rotary shaft, two driven gears, and a chain roller. The body includes a first connecting portion with plural holes, and the seat has a second connecting portion and a plurality of apertures. The reel and the body are movably coupled together, the second connecting portion of the reel is aligned and overlapped with the first connecting portion of the body, and at least one pin is inserted into at least one opening of the first connecting portion and the plurality of apertures of the second connecting portion.Type: ApplicationFiled: December 3, 2013Publication date: June 4, 2015Inventor: Wen Cheng Chang
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Publication number: 20150139755Abstract: A flexible positioning post includes a base, a metal post and a plurality of metal elastic pieces. The base has an upper surface. The metal post has a first end and a second end opposite to each other, and the first end is connected to the upper surface of the base. Each of the metal elastic pieces has a fixed end and a free end opposite to each other. The fixed end is securely assembled at the second end of the metal post, and the free end is adjacent to the upper surface of the base and bent toward the metal post to form a bending portion. Consequently, upon receiving a foreign force, the free end of each of the metal elastic pieces is moved toward the metal post; conversely, once the foreign force is removed, the free end of each of the metal elastic pieces is moved resiliently.Type: ApplicationFiled: February 12, 2014Publication date: May 21, 2015Applicant: Wistron CorporationInventors: Kuo-Cheng LU, Wen-Cheng CHANG
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Patent number: 8995102Abstract: A display and an electrostatic discharge protection apparatus are disclosed, wherein the display includes a display module, a flex flat cable, a motherboard, and an electrostatic discharge protection apparatus. The flex flat cable is electrically connected with the display module and the motherboard; the electrostatic discharge protection apparatus is disposed between the flex flat cable and the display module. The electrostatic discharge protection apparatus has an isolation board and at least one isolation pad, the isolation board includes a first surface and a second surface, and at least one part of the first surface is attached to the flex flat cable; the isolation pad comprises a first isolation surface, and the first isolation surface is combined with the second surface.Type: GrantFiled: June 6, 2013Date of Patent: March 31, 2015Assignee: Wistron CorporationInventors: Kuo-Cheng Lu, Wen-Cheng Chang
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Publication number: 20140183427Abstract: A rope rolling structure of a hand puller contains a fixing member and a rope roller. The fixing member includes a base, a central shaft assembly, two ratchet wheels, and a lower stopping piece. The base has a first segment and a second segment, and the first segment has two opposite orifices. The central shaft assembly is pivoted with the two opposite orifices. Each ratchet wheel includes plural ratchets. The lower stopping piece is fixed on the base and engages with or disengages from one of the plural ratchets. The rope roller has a rolling post and two stop disks, the rolling post has an opening, each stop disk has two apertures, such that the rope roller inserts into and retains with the central shaft assembly by using the two apertures, so when the central shaft assembly rotates, the rope roller is driven by the central shaft assembly to rotate.Type: ApplicationFiled: November 5, 2013Publication date: July 3, 2014Applicant: Win Chance Metal Co., Ltd.Inventor: Wen Cheng Chang
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Publication number: 20140055893Abstract: A display and an electrostatic discharge protection apparatus are disclosed, wherein the display includes a display module, a flex flat cable, a motherboard, and an electrostatic discharge protection apparatus. The flex flat cable is electrically connected with the display module and the motherboard; the electrostatic discharge protection apparatus is disposed between the flex flat cable and the display module. The electrostatic discharge protection apparatus has an isolation board and at least one isolation pad, the isolation board includes a first surface and a second surface, and at least one part of the first surface is attached to the flex flat cable; the isolation pad comprises a first isolation surface, and the first isolation surface is combined with the second surface.Type: ApplicationFiled: June 6, 2013Publication date: February 27, 2014Inventors: Kuo-Cheng LU, Wen-Cheng CHANG
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Patent number: 8561267Abstract: A composite-material buckle contains a base including a first segment with an engaging face and a second segment, between the first segment and the second segment being defined two side walls having two symmetrical holes and two symmetrically elongated pivoting portions respectively; a shaft including two ends inserted into the two symmetrical holes respectively; a plastic press member including a pressing portion and an actuating portion secured, and between the pressing portion and the actuating portion being defined a through aperture, the plastic press member including an elastic arm; a metal member connected with the pressing portion of the plastic press member so that the metal member covers the pressing portion and contacts with the engaging face of the base, and the metal member including a number of retaining teeth arranged thereon.Type: GrantFiled: January 16, 2012Date of Patent: October 22, 2013Assignee: Win Chance Metal Co., Ltd.Inventor: Wen Cheng Chang
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Patent number: 8528849Abstract: A ratchet buckle has a body and a trigger. One end of the body has two opposite pivotal holes, two opposite positioning notches, and a pivotal shaft penetrating the pivotal holes. Two ends of the pivotal shaft each have a ratchet wheel synchronously rotating with the pivotal shaft. One end of the trigger has two opposite shaft holes engaged to the pivotal shaft of the body and has a positioning rod transversally mounted on the trigger to engage the two positioning notches of the body. By operating the trigger to set the pivotal shaft free, the pivotal shaft is easily rotated to reel a strap.Type: GrantFiled: September 27, 2010Date of Patent: September 10, 2013Assignee: Win Chance Metal Co., Ltd.Inventor: Wen Cheng Chang
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Patent number: 8499662Abstract: A pull handle structure of a hand puller contains a base including two opposite holes to insert two shafts respectively, with each hole including a ratchet. A pulling handle includes a rotating member with two side plates, each including first and second ends. Each first end includes an axial connecting portion on which a circular opening is formed so that the rotating member swings axially relative to the base. The side plate includes a sliding rail. Between the two side plates is defined a movable retaining element to contact with the ratchet. A movable bar includes two elongated stems and a grip rod defined between the two elongated stems. Each elongated stem is fitted in the sliding rail to move slidably. Between the rotating member and the movable bar is defined a locking device to obtain a positioning purpose when the movable bar is expanded and retracted.Type: GrantFiled: January 4, 2011Date of Patent: August 6, 2013Assignee: Win Chance Metal Co., Ltd.Inventor: Wen Cheng Chang
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Publication number: 20130180085Abstract: A composite-material buckle contains a base including a first segment with an engaging face and a second segment, between the first segment and the second segment being defined two side walls having two symmetrical holes and two symmetrically elongated pivoting portions respectively; a shaft including two ends inserted into the two symmetrical holes respectively; a plastic press member including a pressing portion and an actuating portion secured, and between the pressing portion and the actuating portion being defined a through aperture, the plastic press member including an elastic arm; a metal member connected with the pressing portion of the plastic press member so that the metal member covers the pressing portion and contacts with the engaging face of the base, and the metal member including a number of retaining teeth arranged thereon.Type: ApplicationFiled: January 16, 2012Publication date: July 18, 2013Inventor: Wen Cheng Chang
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Patent number: 8402611Abstract: A positioning hook structure for a hand puller contains a base including a first and a second ends. A rotating member includes a first segment axially connected with the second end and a second segment having a handle. A central shaft set is axially coupled with the first segment and the second end. Two ratchets includes teeth arranged therearound and fixed onto one end of the central shaft set. The base includes a movable retaining member to abut against one of the teeth. The rotating member includes a movable pulling rod to abut against another tooth of the ratchet. A positioning hook includes third and fourth ends, with the third end including two sides including two insertions, and with the fourth end including a hooking portion extending outward. Thus, the positioning hook inserts in the holes of the base by using the insertions.Type: GrantFiled: November 11, 2010Date of Patent: March 26, 2013Assignee: Win Chance Metal Co., Ltd.Inventor: Wen Cheng Chang
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Publication number: 20120167707Abstract: A pull handle structure of a hand puller contain a base including two opposite holes to insert two shafts respectively, each hole including a ratchet; a pulling handle including a rotating member with two side plates, each including a first and a second ends, the first end including an axial connecting portion on which a circular opening is formed so that the rotating member swings axially relative to the base, the side plate including a sliding rail, between the two side plates being defined a movable retaining element to contact with the ratchet; a movable bar including two elongated stems and a grip rod defined between the two elongated stems, and the elongated stem being fitted in the sliding rail to move slidably, between the rotating member and the movable bar being defined a locking device to obtain a positioning purpose when the movable bar is expended and retracted.Type: ApplicationFiled: January 4, 2011Publication date: July 5, 2012Inventor: Wen Cheng Chang