Patents by Inventor Ju Feng
Ju Feng 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: 20240084911Abstract: A valve device is provided, including a valve body unit and a valve seat. The valve seat is provided with a mounting cavity, and an end of the valve body unit is mounted in the mounting cavity. The valve device further includes a limiting unit, an outer side wall of the valve seat is provided with a mounting hole in communication with the mounting cavity along a radial direction of the mounting cavity, a side wall of the mounting cavity is recessed to form a mounting groove corresponding to the mounting hole, an end of the limiting unit extends into the mounting cavity from the mounting hole and is inserted into the mounting groove, and the limiting unit that extends into the mounting cavity abuts against the valve body unit to perform limiting along an axial direction and a circumferential direction between the valve body unit and the valve seat.Type: ApplicationFiled: November 22, 2023Publication date: March 14, 2024Inventors: Zhongbo FENG, Ju JIN, Fugang WANG, Wenrong ZHANG, Zhiguo SONG
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Publication number: 20180222622Abstract: The present disclosure relates to a container and a system for containing liquid crystal, in the field of manufacture of display devices. The container for containing liquid crystal comprises a bottle body. The lower part of the bottle body is a concave structure, the bottom surface of the concave structure is a flat surface or a concave surface, and the opening of the concave structure faces to the opening of the bottle body. The present disclosure solves the problem of the low one-round utilization ratio of the liquid crystal in the liquid crystal bottle and increases the one-round utilization ratio of the liquid crystal in the liquid crystal bottle. This disclosure is applied to display devices.Type: ApplicationFiled: December 13, 2017Publication date: August 9, 2018Inventors: Ju Feng, Qingshuo Li, Yangxiao Ou, Yan Wang, Tao Luo
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Patent number: 9634592Abstract: A method of estimating a rotational position of a motor having saliency includes the steps of a) superimposing, on a drive voltage to rotate a rotating portion of the motor, a measuring voltage having a predetermined frequency higher than a frequency of the drive voltage to generate a plurality of voltages, and supplying the plurality of voltages to a stationary portion of the motor; b) in parallel with step a), extracting a component of the predetermined frequency in a current flowing in the stationary portion as an extracted current; c) calculating a sum of squares of the extracted current and a phase-shifted current obtained by shifting a phase of the extracted current by ?/2 to acquire a composite signal related to an amplitude of the extracted current; and d) acquiring a rotational position of the rotating portion based on the composite signal.Type: GrantFiled: February 4, 2016Date of Patent: April 25, 2017Assignees: NIDEC SINGAPORE PTE., LTD., NIDEC CORPORATIONInventor: Ju Feng
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Patent number: 9556282Abstract: A modified cellulose is provided. The modified cellulose is represented by the chemical formula (1): wherein n is between 60 and 2500, at least one R is selected from one of the group consisting of R1 is C11 to C32 alkyl group or C11 to C32 alkenyl group, R2 is hydrogen, C3 to C29 alkyl group or C3 to C29 alkenyl group, R3 is C3 to C29 alkyl group or C3 to C29 alkenyl group, R4 is C4 to C8 cycloalkyl group or C4 to C8 cycloalkenyl group, n2 is between 15 and 33, n4 is between 20 and 40.Type: GrantFiled: December 10, 2015Date of Patent: January 31, 2017Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yu-Ying Hsu, Te-Yi Chang, Ju-Feng Liao, Sheng-Ju Liao, Yao-Jheng Huang
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Patent number: 9548687Abstract: A method of estimating a rotational position of a motor having saliency, the method including the steps of a) superimposing, on a drive voltage for the motor, a measuring voltage having a predetermined frequency higher than a frequency of the drive voltage to generate three-phase voltages, and supplying the three-phase voltages to a stationary portion of the motor; b) in parallel with step a), extracting components of the predetermined frequency in three-phase currents flowing in the stationary portion as first, second, and third extracted currents; c) multiplying the first and second extracted currents together to acquire a first composite signal, multiplying the second and third extracted currents together to acquire a second composite signal, and multiplying the first and third extracted currents together to acquire a third composite signal; d) subjecting the first, second, and third composite signals to low-pass filtering to acquire first, second, and third filtered signals, respectively, the low-pass filType: GrantFiled: February 4, 2016Date of Patent: January 17, 2017Assignees: NIDEC SINGAPORE PTE., LTD., NIDEC CORPORATIONInventor: Ju Feng
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Publication number: 20160301338Abstract: A method of estimating a rotational position of a motor having saliency includes the steps of a) superimposing, on a drive voltage to rotate a rotating portion of the motor, a measuring voltage having a predetermined frequency higher than a frequency of the drive voltage to generate a plurality of voltages, and supplying the plurality of voltages to a stationary portion of the motor; b) in parallel with step a), extracting a component of the predetermined frequency in a current flowing in the stationary portion as an extracted current; c) calculating a sum of squares of the extracted current and a phase-shifted current obtained by shifting a phase of the extracted current by ?/2 to acquire a composite signal related to an amplitude of the extracted current; and d) acquiring a rotational position of the rotating portion based on the composite signal.Type: ApplicationFiled: February 4, 2016Publication date: October 13, 2016Inventor: Ju FENG
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Publication number: 20160301337Abstract: A method of estimating a rotational position of a motor having saliency, the method including the steps of a) superimposing, on a drive voltage for the motor, a measuring voltage having a predetermined frequency higher than a frequency of the drive voltage to generate three-phase voltages, and supplying the three-phase voltages to a stationary portion of the motor; b) in parallel with step a), extracting components of the predetermined frequency in three-phase currents flowing in the stationary portion as first, second, and third extracted currents; c) multiplying the first and second extracted currents together to acquire a first composite signal, multiplying the second and third extracted currents together to acquire a second composite signal, and multiplying the first and third extracted currents together to acquire a third composite signal; d) subjecting the first, second, and third composite signals to low-pass filtering to acquire first, second, and third filtered signals, respectively, the low-pass filType: ApplicationFiled: February 4, 2016Publication date: October 13, 2016Inventor: Ju FENG
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Publication number: 20160185878Abstract: A modified cellulose is provided. The modified cellulose is represented by the chemical formula (1): wherein n is between 60 and 2500, at least one R is selected from one of the group consisting of R1 is C11 to C32 alkyl group or C11 to C32 alkenyl group, R2 is hydrogen, C3 to C29 alkyl group or C3 to C29 alkenyl group, R3 is C3 to C29 alkyl group or C3 to C29 alkenyl group, R4 is C4 to C8 cycloalkyl group or C4 to C8 cycloalkenyl group, n2 is between 15 and 33, n4 is between 20 and 40.Type: ApplicationFiled: December 10, 2015Publication date: June 30, 2016Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yu-Ying HSU, Te-Yi CHANG, Ju-Feng LIAO, Sheng-Ju LIAO, Yao-Jheng HUANG
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Patent number: 9063196Abstract: A slow Magic-Angle Spinning NMR device and method are detailed that provide high resolution and high sensitivity metabolic profiling of biological samples. A new 1H-PASS sequence suppresses line broadening in the various biological samples. The device and method allow metabolic changes in small animals to be tracked through continuous investigations of minimally-invasive blood and tissue biopsy samples over a sustained period and allow intact biological objects with sizes up to a few centimeters to be studied.Type: GrantFiled: March 28, 2012Date of Patent: June 23, 2015Assignee: BATTELLE MEMORIAL INSTITUTEInventors: Jian Zhi Hu, Ju Feng, Hardeep S. Mehta
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Patent number: 8861140Abstract: A slider supporting apparatus of includes a base portion; a flexure supported by the base portion; a contact portion being provided on a leading portion of the flexure for urging a trailing edge of the slider to contact with pads on the trailing edge; a support plate attached beneath a tongue; and a clamp comprising a mounting portion fixed on the support plate, two spring arms downward extended from the mounting portion to pass through a hole of the flexure slantwise, and a connection bar connected with two ends of the spring arms for urging a leading edge of the slider to provide a downward component force to the slider. The apparatus provides a larger spring stroke with long lifetime to reduce cost, and avoid pitch and roll static torque to generate so as to prevent the slider popping out the suspension during slider testing process.Type: GrantFiled: September 6, 2013Date of Patent: October 14, 2014Assignee: SAE Magnetics (H.K.) Ltd.Inventors: Yu Xin Chen, Fang Long Nie, Ho Hang Keith Wong, Liang Xing, Chao Luo, Ri Xin Cai, Yan Ju Feng
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Patent number: 8822117Abstract: The present invention relates to a chemical toner composition and a method for preparing the same. The chemical toner composition includes: a resin emulsion; a pigment dispersion; a wax dispersion; and a dispersible polymer coagulant, wherein the dispersible polymer coagulant is a copolymer comprising unsaturated ester monomers and amino-containing monomers. Accordingly, the present invention uses a novel dispersible polymer coagulant to prepare uniform toner particles with excellent roundness and improved flowability and to reduce moisture absorption.Type: GrantFiled: December 16, 2008Date of Patent: September 2, 2014Assignee: Trend Tone Imaging, Inc.Inventors: Kuei-Ying Chiu, Kuo-Tong Huang, Ju-Feng Liao, I-Jein Cheng, Jui-Fa Chang, Chien-Sheng Huang, Yi-Ling Liu
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Patent number: 8557496Abstract: The present invention relates to a chemical toner composition and a method for preparing the same. The chemical toner composition includes: a resin emulsion; a pigment dispersion; a wax dispersion; and a dispersible polymer coagulant, wherein the dispersible polymer coagulant is a copolymer comprising unsaturated ester monomers and amino-containing monomers. Accordingly, the present invention uses a novel dispersible polymer coagulant to prepare uniform toner particles with excellent roundness and improved flowability and to reduce moisture absorption.Type: GrantFiled: April 9, 2012Date of Patent: October 15, 2013Assignee: Trend Tone Imaging, Inc.Inventors: Kuei-Ying Chiu, Kuo-Tong Huang, Ju-Feng Liao, I-Jein Cheng, Jui-Fa Chang, Chien-Sheng Huang, Yi-Ling Liu
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Publication number: 20130257432Abstract: A slow Magic-Angle Spinning NMR device and method are detailed that provide high resolution and high sensitivity metabolic profiling of biological samples. A new 1H-PASS sequence suppresses line broadening in the various biological samples. The device and method allow metabolic changes in small animals to be tracked through continuous investigations of minimally-invasive blood and tissue biopsy samples over a sustained period and allow intact biological objects with sizes up to a few centimeters to be studied.Type: ApplicationFiled: March 28, 2012Publication date: October 3, 2013Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Jian Zhi Hu, Ju Feng, Hardeep S. Mehta
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Patent number: 8283099Abstract: Disclosed are a biomass chemical toner composition and a method for manufacturing the same. First, a biomass resin is mixed with a first hydrophobic resin to form organic particles. The organic particles, a second hydrophobic resin, and a pigment are mixed by emulsion aggregation to form cores. Subsequently, a third hydrophobic resin is formed on the surface of the cores, and the third hydrophobic resin is further heated and coalesced to form a continuous structure encapsulating the cores. Accordingly, the biomass chemical toner obtained from the described method has good anti-humidity, good charge stability, and low fusing temperature.Type: GrantFiled: March 22, 2010Date of Patent: October 9, 2012Assignee: Industrial Technology Research InstituteInventors: Kuo-Tung Huang, Ju-Feng Liao, I-Jein Cheng, Jui-Fa Chang, Yu-Chin Lin, Hsiang-Yun Lee, Yu-Ying Hsu
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Publication number: 20120189957Abstract: The present invention relates to a chemical toner composition and a method for preparing the same. The chemical toner composition includes: a resin emulsion; a pigment dispersion; a wax dispersion; and a dispersible polymer coagulant, wherein the dispersible polymer coagulant is a copolymer comprising unsaturated ester monomers and amino-containing monomers. Accordingly, the present invention uses a novel dispersible polymer coagulant to prepare uniform toner particles with excellent roundness and improved flowability and to reduce moisture absorption.Type: ApplicationFiled: April 9, 2012Publication date: July 26, 2012Applicant: Trend Tone Imaging, Inc.Inventors: Kuei-Ying CHIU, Kuo-Tong HUANG, Ju-Feng LIAO, I-Jein CHENG, Jui-Fa CHANG, Chien-Sheng HUANG, Yi-Ling LIU
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Publication number: 20110143276Abstract: Disclosed are a biomass chemical toner composition and a method for manufacturing the same. First, a biomass resin is mixed with a first hydrophobic resin to form organic particles. The organic particles, a second hydrophobic resin, and a pigment are mixed by emulsion aggregation to form cores. Subsequently, a third hydrophobic resin is formed on the surface of the cores, and the third hydrophobic resin is further heated and coalesced to form a continuous structure encapsulating the cores. Accordingly, the biomass chemical toner obtained from the described method has good anti-humidity, good charge stability, and low fusing temperature.Type: ApplicationFiled: March 22, 2010Publication date: June 16, 2011Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Kuo-Tung Huang, Ju-Feng Liao, I-Jein Cheng, Jui-Fa Chang, Yu-Chin Lin, Hsiang-Yun Lee, Yu-Ying Hsu
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Publication number: 20100055591Abstract: The present invention relates to a chemical toner composition and a method for preparing the same. The chemical toner composition includes: a resin emulsion; a pigment dispersion; a wax dispersion; and a dispersible polymer coagulant, wherein the dispersible polymer coagulant is a copolymer comprising unsaturated ester monomers and amino-containing monomers. Accordingly, the present invention uses a novel dispersible polymer coagulant to prepare uniform toner particles with excellent roundness and improved flowability and to reduce moisture absorption.Type: ApplicationFiled: December 16, 2008Publication date: March 4, 2010Applicant: Trend Tone Imaging, Inc.Inventors: Kuei-Ying Chiu, Kuo-Tong Huang, Ju-Feng Liao, I-Jein Cheng, Jui-Fa Chang, Chien-Sheng Huang, Yi-Ling Liu