Patents by Inventor Han-Chao Chen
Han-Chao 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).
-
Publication number: 20240150534Abstract: A polyethylene terephthalate composite material containing glass fiber and a method for manufacturing the same are provided. The polyethylene terephthalate composite material includes 40 to 65.5 parts by weight of polyethylene terephthalate, 5 to 40 parts by weight of the glass fiber, and 0.15 to 2.5 parts by weight of a crystallizing agent. The crystallizing agent includes an inorganic crystallizing agent and an organic crystallizing agent, and an added amount of the inorganic crystallizing agent is less than an added amount of the organic crystallizing agent.Type: ApplicationFiled: January 9, 2023Publication date: May 9, 2024Inventors: TE-CHAO LIAO, HAN-CHING HSU, CHUN-LAI CHEN, Jui-Jung Lin
-
Publication number: 20240117173Abstract: A composition and a manufacturing method of a highly flame-retardant and low-smoke extruded polyvinyl chloride pipe are provided. The composition includes a polyvinyl chloride resin material, a flame retardant additive and a carbon forming additive. The polyvinyl chloride resin material is in an amount between 10 PHR (parts per hundred resin) and 90 PHR. The flame retardant additive is in an amount between 0.5 PHR and 2.0 PHR, and is a phosphorus-containing flame retardant modified by a modifier. The carbon forming additive is in an amount between 0.2 PHR and 1.0 PHR. The carbon forming additive is at least one material selected from a group consisting of zinc chloride, zinc stearate, calcium stearate, zinc hydroxystannate, anhydrous zinc stannate, zinc phosphate and zirconium phosphate. A total added amount of the flame retardant additive and the carbon forming additive in the composition is not greater than 3 PHR.Type: ApplicationFiled: November 29, 2022Publication date: April 11, 2024Inventors: TE-CHAO LIAO, HAN-CHING HSU, CHUN-LAI CHEN, WEN-YI WU
-
Publication number: 20240117155Abstract: A manufacturing method of a heat-resistant tableware and a molded article of the heat-resistant tableware are provided. The manufacturing method of the heat-resistant tableware includes: providing a polyester composite material that includes 50 wt % to 85 wt % of polyethylene terephthalate, 0 wt % to 5 wt % of an organic nucleating agent, and 10 wt % to 30 wt % of an inorganic nucleating agent; and injecting the polyester composite material into a mold in an injection molding process, in which a mold temperature of the mold is controlled to be not less than 110° C., and a crystallinity of the polyester composite material in the mold is controlled to be between 20% and 30%, so that the polyester composite material is formed into the molded article of the heat-resistant tableware in the mold, and the molded article has a heat distortion temperature of not less than 150° C.Type: ApplicationFiled: November 29, 2022Publication date: April 11, 2024Inventors: TE-CHAO LIAO, HAN-CHING HSU, CHUN-LAI CHEN
-
Publication number: 20240117172Abstract: A composition and a manufacturing method of a highly flame-retardant and low-smoke injection-molded polyvinyl chloride pipe are provided. The composition includes a polyvinyl chloride resin material, a chlorinated polyvinyl chloride resin material, a flame retardant additive and a carbon forming additive. A first number-average degree of polymerization (DPn) of the polyvinyl chloride resin material is between 600 and 1,000. A second number-average degree of polymerization of the chlorinated polyvinyl chloride resin material is between 600 and 800. A difference between the first number-average degree of polymerization and the second number-average degree of polymerization is within 400. The flame retardant additive is a phosphorus-containing flame retardant modified by a modifier. A total added amount of the flame retardant additive and the carbon forming additive in the composition is not greater than 3 PHR.Type: ApplicationFiled: November 29, 2022Publication date: April 11, 2024Inventors: TE-CHAO LIAO, HAN-CHING HSU, CHUN-LAI CHEN, WEN-YI WU
-
Publication number: 20240117176Abstract: A chlorinated polyvinyl chloride resin composition, an extruded sheet and a method for manufacturing the same are provided. The chlorinated polyvinyl chloride resin composition includes a chlorinated polyvinyl chloride resin and a plasticizing processing aid. The chlorinated polyvinyl chloride resin has an amount of 80 parts by weight to 120 parts by weight, a degree of polymerization of from 500 to 1,100, and a chlorine content of from 60% to 75%. The plasticizing processing aid includes a vinyl chloride graft copolymer and an acrylic compound. A grafted functional group of the vinyl chloride graft copolymer is at least one of polyol ester and ethylene vinyl acetate.Type: ApplicationFiled: December 13, 2022Publication date: April 11, 2024Inventors: TE-CHAO LIAO, HAN-CHING HSU, CHUN-LAI CHEN, WEN-YI WU
-
PVC RESIN COMPOSITION AND METHOD FOR MANUFACTURING PIPE HAVING HIGH HEAT RESISTANCE AND TRANSPARENCY
Publication number: 20240117174Abstract: A PVC resin composition and a method for manufacturing a pipe having high heat resistance and transparency are provided. The PVC resin composition includes 100 phr of a PVC resin, 0.5 phr to 5 phr of a modifier, and 1 phr to 10 phr of a heat resistance improving agent. A degree of polymerization of the PVC resin is from 800 to 1,350. The modifier is a polymer containing a first monomer and a second monomer. The first monomer is ethylene or a derivative of the ethylene, and the second monomer is a polyester.Type: ApplicationFiled: December 13, 2022Publication date: April 11, 2024Inventors: TE-CHAO LIAO, HAN-CHING HSU, CHUN-LAI CHEN, WEN-YI WU -
Publication number: 20240101801Abstract: A fiber composite material is provided. The fiber composite material includes 40 phr to 65 phr of a polypropylene resin, 30 phr to 60 phr of a long glass fiber, 0.5 phr to 5 phr of a black masterbatch, and 0.5 phr to 10 phr of a compatibilizer. The black masterbatch contains carbon black having a basic active group on a surface of the carbon black. The compatibilizer is grafted with maleic anhydride.Type: ApplicationFiled: November 29, 2022Publication date: March 28, 2024Inventors: TE-CHAO LIAO, HAN-CHING HSU, CHUN-LAI CHEN
-
Patent number: 7821326Abstract: The present invention relates to a charge pump, which uses a chopper circuit or a clamp circuit coupled between a pump capacitor and an output capacitor for preventing a parasitic transistor produced by a switching mechanism from turning on. Thereby, the performance of the charge pump is improved effectively.Type: GrantFiled: July 23, 2008Date of Patent: October 26, 2010Assignee: Sitronix Technology Corp.Inventors: Cheng-Chung Yeh, Han-Chao Chen
-
Publication number: 20100220072Abstract: A modulized touch panel is revealed. The modulized touch panel includes a first substrate layer and a second substrate layer while the second substrate layer is corresponding to the first substrate layer A touch panel is integrated with a control chip so as to reduce complexity and occupied area of the circuit that transmits signals between electronic devices and the touch panel while increasing scan lines of the touch panel. Thus circuit of electronics is simplified. Moreover, the first substrate layer or the second substrate layer of the touch panel is disposed with a metal layer for reducing impedance and improving signal stability.Type: ApplicationFiled: January 22, 2010Publication date: September 2, 2010Applicant: SITRONIX TECHNOLOGY CORP.Inventors: CHIN-WEI CHIEN, CHIH-YU LIN, HAN-CHAO CHEN
-
Publication number: 20090261891Abstract: The present invention relates to a charge pump, which uses a chopper circuit or a clamp circuit coupled between a pump capacitor and an output capacitor for preventing a parasitic transistor produced by a switching mechanism from turning on. Thereby, the performance of the charge pump is improved effectively.Type: ApplicationFiled: July 23, 2008Publication date: October 22, 2009Inventors: Cheng-Chung YEH, Han-Chao Chen
-
Patent number: 6831286Abstract: A method for determining an emitting angle of an optical pickup head of an optical drive. A jitter inspection device comprises a jig, simulating and adjusting a tilt angle of the optical pickup head, and a jitter meter installed on the jig, inspecting jitter values at different tilt angles. A quadratic surface equation decreases the data points required for measurement to five, and enables product efficiency to raise 17% , such that the minimum jitter value and optimum tilt angle can be obtained quickly.Type: GrantFiled: February 17, 2004Date of Patent: December 14, 2004Assignee: Lite-On It CorporationInventors: Han-Chao Chen, Jeng-Jiun Chen, Bor-Ruey Chen
-
Patent number: 6785899Abstract: An optical disk adjusting assembly for an optical disk reading device. The optical disk adjusting assembly includes a chassis, a first guide rod, a second guide rod, an adjustable positioning element, a clamping plate, a disk rotating module and a disk reading module. The first guide rod and the second guide rod are respectively disposed on the chassis. The adjustable positioning element constrains two ends of the first guide rod and one end of the second guide rod. The clamping plate is secured to the chassis by screws and used to restrain a portion of the adjustable positioning element. Thus, the adjustable positioning element can constrain and adjust the two guide rods efficiently.Type: GrantFiled: December 19, 2002Date of Patent: August 31, 2004Assignee: Lite-On It CorporationInventors: Han-Chao Chen, Jeng-Jiun Chen, Bor-Ruey Chen
-
Publication number: 20040160876Abstract: A method for determining an emitting angle of an optical pickup head of an optical drive. A jitter inspection device comprises a jig, simulating and adjusting a tilt angle of the optical pickup head, and a jitter meter installed on the jig, inspecting jitter values at different tilt angles. A quadratic surface equation decreases the data points required for measurement to five, and enables product efficiency to raise 17% , such that the minimum jitter value and optimum tilt angle can be obtained quickly.Type: ApplicationFiled: February 17, 2004Publication date: August 19, 2004Inventors: Han-Chao Chen, Jeng-Jiun Chen, Bor-Ruey Chen
-
Patent number: 6772424Abstract: A disk drive has a tray with a chassis secured to the tray, the tray and the chassis being housed inside a housing. The disk drive includes a slide mechanism that is positioned between the chassis and the tray, and which is movable independently from the chassis. The disk drive also includes a locking and ejection mechanism that includes a first part that is secured to the chassis and a second part that is secured to the slide mechanism. The tray is locked inside the housing when the first part and second part engage each other, and the tray is ejected from the housing when engagement between the first part and second part is released.Type: GrantFiled: October 16, 2001Date of Patent: August 3, 2004Assignee: Lite-On IT Corp.Inventors: Shih-Lin Yeh, Han-Chao Chen, Jui-Nan Chuang
-
Publication number: 20030235346Abstract: An automatic measurement method for an auto-collimator. When a charge-coupled device catches the image of an object, the program performs image management detection. When the program finds obvious reflective spots in the captured image, the program initiates detection. The method obviates the need for operators to initiate measurement, shortening the measurement procedure and eliminating possible damage due to operator error.Type: ApplicationFiled: January 16, 2003Publication date: December 25, 2003Inventors: Han-chao Chen, Jeng-Jiun Chen, Bor-Ruey Chen
-
Publication number: 20030235142Abstract: An optical disk adjusting assembly for an optical disk reading device. The optical disk adjusting assembly includes a chassis, a first guide rod, a second guide rod, an adjustable positioning element, a clamping plate, a disk rotating module and a disk reading module. The first guide rod and the second guide rod are respectively disposed on the chassis. The adjustable positioning element constrains two ends of the first guide rod and one end of the second guide rod. The clamping plate is secured to the chassis by screws and used to restrain a portion of the adjustable positioning element. Thus, the adjustable positioning element can constrain and adjust the two guide rods efficiently.Type: ApplicationFiled: December 19, 2002Publication date: December 25, 2003Inventors: Han-Chao Chen, Jeng-Jiun Chen, Bor-Ruey Chen
-
Patent number: 6628597Abstract: A guide rail assembly for use with a disk drive has a first rail that has a raised ridge with a wavy upper edge and a wavy lower edge. The assembly also has a second rail having a channel defined therein, with the channel having a wavy upper wall and a wavy lower wall. The raised ridge of the first rail is positioned for reciprocating movement inside the channel of the second rail.Type: GrantFiled: August 31, 2001Date of Patent: September 30, 2003Assignee: Lite-On It Corp.Inventors: Shih-Lin Yeh, Han-Chao Chen, Jui-Nan Chuang
-
Publication number: 20030072243Abstract: A disk drive has a tray with a chassis secured to the tray, the tray and the chassis being housed inside a housing. The disk drive includes a slide mechanism that is positioned between the chassis and the tray, and which is movable independently from the chassis. The disk drive also includes a locking and ejection mechanism that includes a first part that is secured to the chassis and a second part that is secured to the slide mechanism. The tray is locked inside the housing when the first part and second part engage each other, and the tray is ejected from the housing when engagement between the first part and second part is released.Type: ApplicationFiled: October 16, 2001Publication date: April 17, 2003Inventors: Shih-Lin Yeh, Han-Chao Chen, Jui-Nan Chuang
-
Publication number: 20030043719Abstract: A guide rail assembly for use with a disk drive has a first rail that has a raised ridge with a wavy upper edge and a wavy lower edge. The assembly also has a second rail having a channel defined therein, with the channel having a wavy upper wall and a wavy lower wall. The raised ridge of the first rail is positioned for reciprocating movement inside the channel of the second rail.Type: ApplicationFiled: August 31, 2001Publication date: March 6, 2003Inventors: Shih-Lin Yeh, Han-Chao Chen, Jui-Nan Chuang