Patents by Inventor Zhimin Yuan

Zhimin Yuan 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: 20190248981
    Abstract: The present invention discloses a poly(terephthalate-co-sebacate) resin composition, comprising the following components: a. poly(terephthalate-co-sebacate); and b. an alkane, which is at least one selected from the group consisting of hexadecane, heptadecane, octadecane, nonadecane and eicosane; wherein a weight content of the alkane is 5 ppm-1000 ppm based on a total weight of the poly(terephthalate-co-sebacate) resin composition. The present invention controls the content of alkane in the composition within a range of 5 ppm-1000 ppm by adding an alkane, which not only enables the poly(terephthalate-co-sebacate) resin to have obviously improved blow molding properties, a film thickness range of less than 0.3 ?m, and a relative deviation of film thickness of less than 2.
    Type: Application
    Filed: November 30, 2017
    Publication date: August 15, 2019
    Applicant: Kingfa Sci. & Tech. Co., Ltd.
    Inventors: Weiwei Wang, Zhimin Yuan, Tongmin Cai, Xianbo Huang, Xiangbin Zeng, Renxu Yuan, Zhilong Guo, Meijun Tang
  • Publication number: 20190195025
    Abstract: A buoyancy compensating assembly and method of deploying a riser assembly are disclosed. The buoyancy compensating assembly for connection to a portion of flexible pipe, comprises at least one rigid buoyancy module for connection to a riser; and at least one regulating element configured to control the pressure within the at least one rigid buoyancy module in use.
    Type: Application
    Filed: December 22, 2017
    Publication date: June 27, 2019
    Applicant: GE Oil & Gas UK Limited
    Inventors: Zhimin Tan, Yucheng Hou, Jiabei Yuan, Linfa Zhu
  • Publication number: 20190088276
    Abstract: A reader structure, a method of biasing a free layer of a reader structure, and a read head are provided, the reader structure comprises a free layer having a reader edge for interacting with and being proximal to a magnetic media; a first magnetic bias member and a second magnetic bias member each provided adjacent to the free layer, the first and second magnetic bias members being configured to have a first magnetisation direction which is substantially parallel to the reader edge; an additional bias member disposed adjacent to the free layer, the additional bias member further being located proximal to at least one of the first magnetic bias member and the second magnetic bias member, and the additional bias member being configured to have a magnetisation direction that is substantially orthogonal to the first magnetisation direction.
    Type: Application
    Filed: February 28, 2017
    Publication date: March 21, 2019
    Inventors: Chun Lian ONG, Zhimin YUAN, Shiming ANG
  • Publication number: 20180362729
    Abstract: The present invention discloses a PBAT resin composition comprising: (a) Poly (butyleneadipate-co-terephthalate); (b) a cyclic esterified product having a structure represented by the formula (I) Wherein the content by weight of the cyclic esterified product is from 10 ppm to 2000 ppm, based on the total weight of the PBAT resin composition. In the present invention, the service life of the PBAT resin composition can be greatly extended by adding cyclic esterified product in the PBAT resin composition and controlling the content of the cyclic esterified product in the composition in the range of 10 ppm to 2000 ppm. And after boiled for 240 hours in 95% ethanol at 40° C., the film produced from blowing or the articles produced from injection have less surface precipitates, with excellent surface appearance properties.
    Type: Application
    Filed: August 30, 2016
    Publication date: December 20, 2018
    Applicant: KINGFA SCI. & TECH. CO., LTD.
    Inventors: Changli LU, Zhimin YUAN, Tongmin CAI, Xianbo HUANG, Xiangbin ZENG, Jian JIAO, Renxu YUAN, Yuke ZHONG, Kai XIONG, Hui YANG, Kaijin MAI, Xueteng DONG
  • Publication number: 20180298187
    Abstract: The present invention discloses a biodegradable polyester composition, wherein based on a total weight of the biodegradable polyester composition, a weight content of styrene is 0.1 ppm-30 ppm. When the weight content of styrene which is added into a chosen formula of the biodegradable polyester composition based on the total weight of the biodegradable polyester composition is controlled as 0.1 ppm-30 ppm, the present invention may guarantee the biodegradable polyester composition with excellent transmittance and haze effect, and meanwhile may guarantee the biodegradable polyester composition with suitable UV resistance function, without reducing a degradation rate of the biodegradable polyester composition.
    Type: Application
    Filed: March 1, 2017
    Publication date: October 18, 2018
    Applicants: Kingfa Sci. & Tech. Co., Ltd., Zhuhai Wango Chemical Co., Ltd.
    Inventors: Changli Lu, Zhimin Yuan, Tongmin Cai, Xianbo Huang, Xiangbin Zeng, Jian Jiao, Renxu Yuan, Yuke Zhong, Kai Xiong, Hui Yang, Kaijin Mai, Xueteng Dong
  • Publication number: 20180298188
    Abstract: The present invention discloses a biodegradable polyester composition, wherein based on a total weight of the biodegradable polyester composition, a weight content of glycidyl methacrylate is 0.05 ppm-10 ppm. In the present invention, by adding a trace amount of glycidyl methacrylate into a chosen formula of the biodegradable polyester composition and controlling the weight content of glycidyl methacrylate which finally remains in the biodegradable polyester composition as 0.05 ppm-10 ppm, a compatibility between aliphatic-aromatic polyester and polylactic acid in the biodegradable polyester composition can be greatly enhanced, which enables the biodegradable polyester composition to have excellent surface property of film material, and no fisheye occurs on the film material because of a fluctuation of processing technique.
    Type: Application
    Filed: March 1, 2017
    Publication date: October 18, 2018
    Applicants: Kingfa Sci. & Tech. Co., Ltd., Kingfa Sci. & Tech. Co., Ltd., Zhuhai Wango Chemical Co., Ltd., Zhuhai Wango Chemical Co., Ltd.
    Inventors: Changli Lu, Zhimin Yuan, Tongmin Cai, Xianbo Huang, Xiangbin Zeng, Jian Jiao, Renxu Yuan, Yuke Zhong, Kai Xiong, Hui Yang, Kaijin Mai, Xueteng Dong
  • Publication number: 20180179375
    Abstract: A biodegradable polyester composition based on a total weight of the biodegradable polyester composition, including a weight content of tetrahydrofuran, which is 3 ppm-200 ppm; and based on the total weight of the biodegradable polyester composition, a weight content of cyclopentanone is 0.5 ppm-85 ppm is provided. The tetrahydrofuran and cyclopentanone is added into the composition and controlling the content of tetrahydrofuran and the content of cyclopentanone in a certain range in the composition to realize printing performance. Moreover, when a velocity of film blowing is 176 Kg/h, a range of a film thickness is less than 0.2 ?m and a relative deviation of the film thickness is less than 1%.
    Type: Application
    Filed: February 24, 2017
    Publication date: June 28, 2018
    Applicants: KINGFA SCI. & TECH. CO., LTD., ZHUHAI WANGO CHEMICAL CO., LTD., TIANJIN KINGFA NEW MATERIAL CO., LTD.
    Inventors: Changli LU, Zhimin YUAN, Tongmin CAI, Xianbo HUANG, Xiangbin ZENG, Jian JIAO, Renxu YUAN, Yuke ZHONG, Kai XIONG, Hui YANG, Kaijin MAI, Xueteng DONG
  • Publication number: 20180171136
    Abstract: A biodegradable polyester composition based on a total weight of the biodegradable polyester composition, including a weight content of a cyclic ester compound having a structure shown as formula (I) which is 100 ppm-950 ppm; and based on the total weight of the biodegradable polyester composition, a weight content of tetrahydrofuran is 3 ppm-200 ppm is provided. The cyclic ester compound and tetrahydrofuran is added into the composition and controlling the content of the cyclic ester compound and the content of tetrahydrofuran in a certain range in the composition to realize an anti-thermal oxidative aging property of the biodegradable polyester composition. In addition, a film is prepared by blow molding or a part is prepared by injection molding after being digested with 95% ethanol at 40° C. for 240 hours.
    Type: Application
    Filed: February 24, 2017
    Publication date: June 21, 2018
    Applicants: KINGFA SCI. & TECH. CO., LTD., ZHUHAI WANGO CHEMICAL CO., LTD., TIANJIN KINGFA NEW MATERIAL CO., LTD.
    Inventors: Changli LU, Zhimin YUAN, Tongmin CAI, Xianbo HUANG, Xiangbin ZENG, Jian JIAO, Renxu YUAN, Yuke ZHONG, Kai XIONG, Hui YANG, Kaijin MAI, Xueteng DONG
  • Publication number: 20180163044
    Abstract: A biodegradable polyester composition based on a total weight of the biodegradable polyester composition, including a weight content of a cyclic ester compound having a structure shown as formula (I), which is 100 ppm-950 ppm; and based on the total weight of the biodegradable polyester composition, a weight content of cyclopentanone is 0.5 ppm-85 ppm is provided. The cyclic ester compound and cyclopentanone is added into the composition and controlling the content of the cyclic ester compound and the content of cyclopentanone in a certain range in the composition to realize an anti-thermal oxidative aging property of the biodegradable polyester composition. In addition, a film is prepared by blow molding or a part is prepared by injection molding after being digested with 95% ethanol at 40° C. for 240 hours.
    Type: Application
    Filed: February 24, 2017
    Publication date: June 14, 2018
    Applicants: KINGFA SCI. & TECH. CO., LTD., ZHUHAI WANGO CHEMICAL CO., LTD., TIANJIN KINGFA NEW MATERIAL CO., LTD.
    Inventors: Changli LU, Zhimin YUAN, Tongmin CAI, Xianbo HUANG, Xiangbin ZENG, Jian JIAO, Renxu YUAN, Yuke ZHONG, Kai XIONG, Hui YANG, Kaijin MAI, Xueteng DONG
  • Publication number: 20180056813
    Abstract: The present disclosure provides a magnetic field communication ground power system of an electric vehicle, the system includes a reflux rail and multi-segment conductive rail mounted on a ground. The electric vehicle runs through the reflux rail, and receives electric power from the conductive rail through conductive boots so as to drive the electric vehicle to move. The system further includes: a plurality of driving positive electrodes configured to connected to the conductive rail; at least one electromagnetic controlling system configured to turn on or turn off the driving positive electrodes; a plurality of magnetic controlling systems configured to collect a position of the electric vehicle on the reflux rail, wherein the magnetic controlling systems transmit the sampled position of the electric vehicle to the electromagnetic controlling system, and the electromagnetic controlling system turns on or turns off voltage of the driving positive electrodes.
    Type: Application
    Filed: April 19, 2017
    Publication date: March 1, 2018
    Inventors: Zhimin YUAN, Zhongwen LI
  • Patent number: 9852757
    Abstract: A method of decoding a codeword that satisfies a k constraint into output data includes, using a decoder of a hard disk drive system, converting each bit of the codeword in Non-Return-to-Zero format, extracting, from the converted codeword, a plurality of data blocks comprising a first data block and a plurality of remaining data blocks, performing a first analysis on the plurality of data blocks for modifying each of the plurality of data blocks that satisfies a first predetermined criterion, and performing a second analysis on the plurality of data blocks after the first analysis for modifying each of the plurality of data blocks that satisfies a second predetermined criterion to obtain the output data.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: December 26, 2017
    Assignee: Marvell International Ltd.
    Inventors: Kui Cai, Anmin Kong, Zhimin Yuan
  • Patent number: 9711169
    Abstract: According to embodiments of the present invention, a sensor array for reading data from a storage medium including a plurality of tracks is provided. The sensor array includes a first sensor, and a second sensor, wherein the first sensor and the second sensor are configured to obtain signals from adjacent tracks of the plurality of tracks of the storage medium, the signals being associated with data stored at the adjacent tracks. According to further embodiments of the present invention, a storage device and a method of reading data from a storage medium including a plurality of tracks are also provided.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: July 18, 2017
    Assignee: Marvell International LTD.
    Inventors: Guchang Han, Zhimin Yuan, Pantelis Sophoclis Alexopoulos
  • Patent number: 9704522
    Abstract: Magnetic disk, method of track following on a magnetic disk, and method of writing a servo pattern in a dedicated servo layer of a magnetic disk. The magnetic disk comprises a servo pattern in a dedicated servo layer of the magnetic disk, the servo pattern having a first burst A and a second burst B arranged to be within one period of a servo sample, each of burst A and burst B comprising DC+ and DC? magnetic bursts; wherein a center of the DC+/DC? bursts of burst B is shifted relative to the DC+/DC? bursts of burst A in a substantially radial direction of the magnetic disk.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: July 11, 2017
    Assignee: Marvell International LTD.
    Inventors: Zhimin Yuan, Jingliang Zhang, Chun Lian Ong, Shiming Ang
  • Patent number: 9685181
    Abstract: In the present disclosure, a method of operating a data storage apparatus is provided. The method includes writing a data signal into a portion of a data layer in a recording medium of a data storage apparatus. The method further includes determining a data layer coupling interference value arising due to interference from the data layer provided in between a sensor head and a servo layer of the recording medium in reading servo data, the data layer coupling interference value determined based on the data signal. The method further includes writing the data layer coupling interference value onto the recording medium. A corresponding data storage apparatus is provided.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: June 20, 2017
    Assignee: Marvell International Ltd.
    Inventors: Jingliang Zhang, Anmin Kong, Songhua Zhang, Zhimin Yuan
  • Patent number: 9626998
    Abstract: A hard disk drive device and a method and apparatus for control of the hard disk drive is provided. The hard disk drive includes disk media, a slider head, a head gimbal assembly and a control means. The disk media includes at least two layers for data storage. The slider head flies above the disk media and includes a writer and a reader, and a head gimbal assembly supports the slider head above the disk media. The control means is physically coupled to the head gimbal assembly and electrically coupled to the writer and the reader for reducing write interference from the writer when the writer is writing to the disk media while the reader is reading from the disk media, wherein write interference is reduced in one or more of a time domain and a frequency domain.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: April 18, 2017
    Assignee: Marvell International Ltd.
    Inventors: Jingliang Zhang, Zhimin Yuan, Siang Huei Leong, Budi Santoso, Pantelis Sophoclis Alexopoulos
  • Publication number: 20160365112
    Abstract: A method of decoding a codeword that satisfies a k constraint into output data includes, using a decoder of a hard disk drive system, converting each bit of the codeword in Non-Return-to-Zero format, extracting, from the converted codeword, a plurality of data blocks comprising a first data block and a plurality of remaining data blocks, performing a first analysis on the plurality of data blocks for modifying each of the plurality of data blocks that satisfies a first predetermined criterion, and performing a second analysis on the plurality of data blocks after the first analysis for modifying each of the plurality of data blocks that satisfies a second predetermined criterion to obtain the output data.
    Type: Application
    Filed: August 26, 2016
    Publication date: December 15, 2016
    Inventors: Kui CAI, Anmin KONG, Zhimin YUAN
  • Patent number: 9431053
    Abstract: A method of encoding an input data into a codeword that satisfy a k constraint includes partitioning the input data into a plurality of data blocks comprising a first data block and a plurality of remaining data blocks; performing a first analysis of the plurality of data blocks for modifying each of the plurality of remaining data blocks that satisfy a first predetermined criterion; performing a second analysis of the plurality of data blocks after the first analysis for modifying each of the plurality of data blocks that satisfy a second predetermined criterion; and converting each bit of the plurality of data blocks after the second analysis to produce the codeword in Non-Return-to-Zero (NRZ) format with the k constraint. There is also provided a method of decoding the codeword with satisfies the k constraint into an output data, and the corresponding encoder and decoder.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: August 30, 2016
    Assignee: Marvell International Ltd.
    Inventors: Kui Cai, Anmin Kong, Zhimin Yuan
  • Publication number: 20160232929
    Abstract: Magnetic disk, method of track following on a magnetic disk, and method of writing a servo pattern in a dedicated servo layer of a magnetic disk. The magnetic disk comprises a servo pattern in a dedicated servo layer of the magnetic disk, the servo pattern having a first burst A and a second burst B arranged to be within one period of a servo sample, each of burst A and burst B comprising DC+ and DC? magnetic bursts; wherein a center of the DC+/DC? bursts of burst B is shifted relative to the DC+/DC? bursts of burst A in a substantially radial direction of the magnetic disk.
    Type: Application
    Filed: September 17, 2014
    Publication date: August 11, 2016
    Applicant: Marvell International Ltd.
    Inventors: Zhimin YUAN, Jingliang ZHANG, Chun Lian ONG, Shiming ANG
  • Publication number: 20160210992
    Abstract: In the present disclosure, a method of operating a data storage apparatus is provided. The method includes writing a data signal into a portion of a data layer in a recording medium of a data storage apparatus. The method further includes determining a data layer coupling interference value arising due to interference from the data layer provided in between a sensor head and a servo layer of the recording medium in reading servo data, the data layer coupling interference value determined based on the data signal. The method further includes writing the data layer coupling interference value onto the recording medium. A corresponding data storage apparatus is provided.
    Type: Application
    Filed: September 2, 2014
    Publication date: July 21, 2016
    Inventors: Jingliang ZHANG, Anmin KONG, Songhua ZHANG, Zhimin YUAN
  • Publication number: 20160203837
    Abstract: According to embodiments of the present invention, a sensor array for reading data from a storage medium including a plurality of tracks is provided. The sensor array includes a first sensor, and a second sensor, wherein the first sensor and the second sensor are configured to obtain signals from adjacent tracks of the plurality of tracks of the storage medium, the signals being associated with data stored at the adjacent tracks. According to further embodiments of the present invention, a storage device and a method of reading data from a storage medium including a plurality of tracks are also provided.
    Type: Application
    Filed: August 26, 2014
    Publication date: July 14, 2016
    Inventors: Guchang HAN, Zhimin YUAN, Pantelis Sophoclis ALEXOPOULOS