Patents by Inventor Chin Chuan Chen
Chin Chuan Chen 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: 11972537Abstract: A method for flattening a three-dimensional shoe upper template is provided. The method includes providing a three-dimensional last model, obtaining a three-dimensional grid model, obtaining a three-dimensional thickened grid model, obtaining a two-dimensional initial-value grid model, and obtaining a two-dimensional grid model with the smallest energy value. A system and a non-transitory computer-readable medium for performing the method are also provided. The method makes it possible to precisely flatten a three-dimensional last model with a non-developable surface and thereby convert the three-dimensional last model into a two-dimensional grid model.Type: GrantFiled: August 19, 2022Date of Patent: April 30, 2024Assignee: YU JUNG CHANG TECHNOLOGY CO., LTD.Inventors: Chih-Chuan Chen, Wei-Hsiang Tsai, Chin-Yu Chen, Ching-Cherng Sun, Jann-Long Chern, Yu-Kai Lin
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Patent number: 11962847Abstract: A channel hiatus correction method for an HDMI device is provided. A recovery code from scrambled data of the stream is obtained. A liner feedback shift register (LFSR) value of channels of the HDMI port is obtained based on the recovery code and the scrambled data of the stream. The stream is de-scrambled according to the LFSR value of the channels of the HDMI port. Video data is displayed according to the de-scrambled stream.Type: GrantFiled: November 9, 2022Date of Patent: April 16, 2024Assignee: MEDIATEK INC.Inventors: Chia-Hao Chang, You-Tsai Jeng, Kai-Wen Yeh, Yi-Cheng Chen, Te-Chuan Wang, Kai-Wen Cheng, Chin-Lung Lin, Tai-Lai Tung, Ko-Yin Lai
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Publication number: 20240091191Abstract: Disclosed herein is related to a method for treating a symptom associated with senescence in a subject by administering to the subject with an effective amount of corylin and/or neobavaisoflavone, wherein the symptom associated with senescence is loss of muscle strength, muscle weakness, loss of motor coordination, loss of balance, skin wrinkle, or a poor blood biochemical parameter.Type: ApplicationFiled: September 2, 2022Publication date: March 21, 2024Applicant: Chang Gung UniversityInventors: Chin-Chuan CHEN, Yann-Lii LEU, Shu-Huei WANG, Tong-Hong WANG, Shu-Fang CHENG
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Publication number: 20240088293Abstract: An n-type metal oxide semiconductor transistor includes a gate structure, two source/drain regions, two amorphous portions and a silicide. The gate structure is disposed on a substrate. The two source/drain regions are disposed in the substrate and respectively located at two sides of the gate structure, wherein at least one of the source/drain regions is formed with a dislocation. The two amorphous portions are respectively disposed in the two source/drain regions. The silicide is disposed on the two source/drain regions, wherein at least one portion of the silicide overlaps the two amorphous portions.Type: ApplicationFiled: October 5, 2022Publication date: March 14, 2024Applicant: UNITED MICROELECTRONICS CORP.Inventors: Chun-Ya Chiu, Ssu-I Fu, Chin-Hung Chen, Jin-Yan Chiou, Wei-Chuan Tsai, Yu-Hsiang Lin
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Patent number: 11649810Abstract: An oil suction pump contains: an oil storage cylinder, a pumping mechanism, and a cap. The pumping mechanism includes a body, a drive rod, a plug, and a pressure relief valve. The cap is disposed on the body and the oil storage cylinder, and the cap includes a connector. The drive rod has a press lever, the cap further includes a first air conduit, a first one-way valve assembly, and a second air conduit. The second air conduit has an inlet segment, an outlet opposite to the inlet segment, and a pump segment defined between the inlet segment and the outlet segment and communicating with the oil storage cylinder. The cap further includes a second one-way valve assembly accommodated in the oil storage cylinder and connected with the pump segment, and the second conduit accommodates a pressure reducing valve.Type: GrantFiled: December 8, 2019Date of Patent: May 16, 2023Assignee: ESUN TOOLS MFG. LTD.Inventor: Chin-Chuan Chen
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Patent number: 11624314Abstract: A novel combustion chamber valve and fuel system for driven fastener hand tool is disclosed having a fuel pump disposed parallel to the combustion and piston chambers. Pressure applied a safety at the nose of the tool is activates the fuel pump in a common direction. Pressure applied on a trigger activates the valve system prior to firing in a common direction. The valve system employs a central shaft coupling three valves, an inlet valve using a novel wedged circumferential edge seal, a control valve using a novel edge circumferential seal with a ventilated support, and a charging exhaust valve using a face seal.Type: GrantFiled: August 21, 2019Date of Patent: April 11, 2023Assignee: Power Tech Staple and Nail, Inc.Inventors: Raymond Wong, Shih-Yi Chen, Chin-Chuan Chen
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Patent number: 11554471Abstract: An exhaust valve comprising an elastomeric flap portion (e.g. of silicone) covering one or more exhaust ports in a normally closed position for a combustion driven fastener hand tool is disclosed. The elastomeric flap portion is much shorter than a comparable steel reed valve, allowing it to be disposed in small spaces. A single flat piece of elastomeric material can be configured held fixed to a housing surface along a line between one or more pairs of ports such that a flap portion of the material extends to each side of the line and covers one of the pairs of ports. The flat piece can be conveniently held in position against the housing surface by a rib or standoff on the interior surface of an exterior housing.Type: GrantFiled: July 25, 2016Date of Patent: January 17, 2023Assignee: Power Tech Staple and Nail, Inc.Inventors: Raymond Wong, Shih-Yi Chen, Chin-Chuan Chen
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Patent number: 11271471Abstract: The present invention discloses a power converter controller having a short-circuit protection threshold voltage no higher than an over-current protection threshold voltage so that any abnormal voltage or current stress on semiconductor components can be timely sensed via a current sense pin in the event of a short-circuit fault, effectively preventing semiconductor components from being damaged.Type: GrantFiled: August 14, 2020Date of Patent: March 8, 2022Assignee: INNO-TECH CO., LTD.Inventors: Chin-Chuan Chen, Shu-Chia Lin, Chih-Liang Wang, Kuo-Jung Wu
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Publication number: 20210328501Abstract: The present invention discloses a power converter controller having a short-circuit protection threshold voltage no higher than an over-current protection threshold voltage so that any abnormal voltage or current stress on semiconductor components can be timely sensed via a current sense pin in the event of a short-circuit fault, effectively preventing semiconductor components from being damaged.Type: ApplicationFiled: August 14, 2020Publication date: October 21, 2021Inventors: Chin-Chuan Chen, Shu-Chia Lin, Chih-Liang Wang, Kuo-Jung Wu
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Publication number: 20210328502Abstract: The present invention discloses a power converter controller with short-circuit protection employing a short-circuit protection increasing slope threshold no higher than an over-current protection increasing slope threshold to detect a short-circuit abnormality in advance through a current sensing pin while any semiconductor component suffering from abnormal voltage or over-current, thereby preventing the semiconductor components from damage.Type: ApplicationFiled: August 14, 2020Publication date: October 21, 2021Inventors: Chin-Chuan Chen, Shu-Chia Lin, Chih-Liang Wang
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Publication number: 20210246887Abstract: A fluid pump device contains: a fluid storage barrel, a cap, and a manual pumping mechanism. The fluid storage barrel includes a fluid accommodation chamber and an air chamber. The cap is configured to close the fluid accommodation chamber and the air chamber, and the cap includes a connector configured to connect with a fluid delivery tube and communicating with the fluid accommodation chamber, an air conduit communicating with the fluid accommodation chamber and the air chamber, and a check valve communicating with the air conduit. The manual pumping mechanism includes a press stem extending through the cap and the air chamber, an operation lever mounted on a top of the press stem, and a one-way piston connected on a bottom of the press stem, wherein the fluid storage barrel includes a single-way discharge valve fixed on a bottom of the air chamber.Type: ApplicationFiled: October 1, 2020Publication date: August 12, 2021Inventor: CHIN-CHUAN CHEN
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Publication number: 20210172349Abstract: An oil suction pump contains: an oil storage cylinder, a pumping mechanism, and a cap. The pumping mechanism includes a body, a drive rod, a plug, and a pressure relief valve. The cap is disposed on the body and the oil storage cylinder, and the cap includes a connector. The drive rod has a press lever, the cap further includes a first air conduit, a first one-way valve assembly, and a second air conduit. The second air conduit has an inlet segment, an outlet opposite to the inlet segment, and a pump segment defined between the inlet segment and the outlet segment and communicating with the oil storage cylinder. The cap further includes a second one-way valve assembly accommodated in the oil storage cylinder and connected with the pump segment, and the second conduit accommodates a pressure reducing valve.Type: ApplicationFiled: December 8, 2019Publication date: June 10, 2021Inventor: Chin-Chuan Chen
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Publication number: 20210053191Abstract: Pliers contains: a first clamp part, a second clamp part, and a spring. The first clamp part includes a first head, a first handle, and two first rotatable connection portions formed between the first head and the first handle. The two first rotatable connection portions respectively have two symmetrical orifices and two first inclined faces. The second clamp part includes a second head, a second handle, and two second rotatable connection portions formed between the second head and the second handle. The two second rotatable connection portions have two central shafts orifices accommodated in the two symmetrical orifices respectively, and the two central shafts orifices have two guide faces corresponding to the two symmetrical orifices respectively; wherein the spring abuts against the first handle and the second handle so that the first head and the second head clamp an object.Type: ApplicationFiled: August 20, 2019Publication date: February 25, 2021Inventor: Chin-Chuan Chen
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Patent number: 10780594Abstract: A staggered multilayer trimming head installed at a front end of an electric haircutter includes a bottom plate, a fixed blade, a moving knife module and a moving swing block. The moving knife module has a first moving knife and at least one second moving knife; an adjusting lever is coupled to the second moving knife for adjusting the position of the second moving knife with respect to the first moving knife quickly, and the moving knife module is coupled to a motor of the electric haircutter with power connection through the moving swing block. In a cutting/shearing operation, the adjustable moving blade allows the cutting and shearing to be adjusted to a single cutting and shearing track or a multiple of tracks, so as to complete various haircutting effects quickly without changing the operator's original operating habit and improve the haircutting efficiency and quality significantly.Type: GrantFiled: June 12, 2019Date of Patent: September 22, 2020Assignee: TZENG FONG INDUSTRIAL CORPORATIONInventor: Chin-Chuan Chen
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Patent number: 10780567Abstract: An accessory attachment for a driven fastener hand tool is disclosed comprising a mounting block having an attachment channel and an indexing guide feature. A plate for covering a fastener driving channel of the fastener tool has a nose end with chamfered edges on opposing sides towards the fastener driving channel and the attachment channel has opposing lips for seating against the chamfered edges of the nose end of the plate. One or more bolts through the mounting block at a bottom of the attachment channel press the nose end of the plate causing the opposing lips of the mounting block to press against the chamfered edges thereby securing the mounting block to the nose end of the plate. Alternately or additionally, the mounting block can be used to support a range of accessories including, a non-marring pad, a light, such as an LED, a level, and/or an edge guide.Type: GrantFiled: October 4, 2017Date of Patent: September 22, 2020Assignee: Power Tech Staple and Nail, Inc.Inventors: Raymond Wong, Shih-Yi Chen, Chin-Chuan Chen
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Patent number: 10759031Abstract: A valve support for use with a valve in a combustion driven fastener hand tool, the valve being formed by a flexible disc affixed to a central shaft having a circumferential edge resting against an anular valve seat affixed to a wall of a combustion chamber with the valve in a closed position is disclosed. The valve support comprises a plate affixed to the central shaft and against the flexible disc, the plate having one or more ports therethrough. In a closed position, the flexible disc has a circumferential edge resting against an anular valve seat affixed to a wall of a combustion chamber but also a central portion of the flexible disc is proximate or contacting a central portion of the support plate on the same side of the disc as the annular valve seat. Various port configuration are possible.Type: GrantFiled: June 7, 2016Date of Patent: September 1, 2020Assignee: Power Tech Staple and Nail, Inc.Inventors: Raymond Wong, Shih-Yi Chen, Chin-Chuan Chen
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Patent number: 10618153Abstract: A combustion driven fastener hand tool is disclosed having a fuel system subassembly including a fuel nozzle and a metering valve, disposed in a common bore of the combustion driven fastener apparatus. The metering valve comprises a hollow cylindrical housing having a cap at each end and a central dual valve stem therebetween. Movement of the dual central valve stem closes an inlet valve at one end and opens an outlet valve at an opposite end in a coordinated manner to release a metered amount of fuel through the outlet valve while preventing additional fuel through the inlet valve. The combustion driven fastener hand tool includes numerous other features affording improvements over the prior art.Type: GrantFiled: March 23, 2018Date of Patent: April 14, 2020Assignee: Power Tech Staple and Nail, Inc.Inventors: Raymond Wong, Shih-Yi Chen, Chin-Chuan Chen
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Publication number: 20200063643Abstract: A novel combustion chamber valve and fuel system for driven fastener hand tool is disclosed having a fuel pump disposed parallel to the combustion and piston chambers. Pressure applied a safety at the nose of the tool is activates the fuel pump in a common direction. Pressure applied on a trigger activates the valve system prior to firing in a common direction. The valve system employs a central shaft coupling three valves, an inlet valve using a novel wedged circumferential edge seal, a control valve using a novel edge circumferential seal with a ventilated support, and a charging exaust valve using a face seal.Type: ApplicationFiled: August 21, 2019Publication date: February 27, 2020Applicant: Power Tech Staple and Nail, Inc.Inventors: RAYMOND WONG, SHIH-YI CHEN, CHIN-CHUAN CHEN
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Publication number: 20180207778Abstract: A combustion driven fastener hand tool is disclosed having a fuel system subassembly including a fuel nozzle and a metering valve, disposed in a common bore of the combustion driven fastener apparatus. The metering valve comprises a hollow cylindrical housing having a cap at each end and a central dual valve stem therebetween. Movement of the dual central valve stem closes an inlet valve at one end and opens an outlet valve at an opposite end in a coordinated manner to release a metered amount of fuel through the outlet valve while preventing additional fuel through the inlet valve. The combustion driven fastener hand tool includes numerous other features affording improvements over the prior art.Type: ApplicationFiled: March 23, 2018Publication date: July 26, 2018Applicant: Power Tech Staple and Nail, Inc.Inventors: RAYMOND WONG, SHIH-YI CHEN, CHIN-CHUAN CHEN
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Patent number: 9950414Abstract: A combustion driven fastener hand tool is disclosed having an extruded front body component including two to three parallel bores. A first bore forms a cylinder for the piston which drives the fastener. A second bore forms a primary combustion chamber in which a fuel and air mixture is ignited and directed into the adjacent piston cylinder. A third bore (or alternately an attached component) forms a pathway for the fuel and air mixture to be directed into the primary combustion chamber. The combustion driven fastener hand tool includes numerous other features affording improvements over the prior art.Type: GrantFiled: August 28, 2015Date of Patent: April 24, 2018Assignee: Power Tech Staple and Nail, Inc.Inventors: Raymond Wong, Shih-Yi Chen, Chin-Chuan Chen