Patents by Inventor Yijin Zhang
Yijin Zhang 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: 11913324Abstract: An apparatus for downhole multi-dimensional imaging includes an acquisition unit configured to acquire a formation resistivity signal, an ultrasonic echo signal and an orientation signal regularly; a sector calculation unit configured to calculate, based on said orientation signal, a sector where a currently acquired signal is from; and a multi-dimensional imaging unit, configured to calculate, based on the signals acquired by the acquisition unit, data of resistivity, distance from a drilling tool to a borehole wall and ultrasonic echo amplitude, and distribute said data into all sectors for feature recognition and extraction, thus obtaining key features characterizing a current formation being drilled, said key features being transmitted to ground for guiding drilling process. The structural complexity and the length of the downhole imaging measurement instrument can be reduced, and feature recognition can be directly performed on the imaging data underground.Type: GrantFiled: August 26, 2020Date of Patent: February 27, 2024Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERINGInventors: Yijin Zeng, Wei Zhang, Weining Ni, Xin Li, Lipeng Yan, Jinping Wu, Yuefa Hu, Lishuang Wang, Zuyang Zhu, Jintai Mi
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Patent number: 10808112Abstract: The present invention is related to a composition with about 80 wt % to about 95 wt % of a polymer blend, wherein the polymer blend comprises (a) about 3 wt % to about 25 wt % of a first propylene-based elastomer based on the polymer blend, and (b) about 75 wt % to about 97 wt % of a second propylene-based elastomer based on the polymer blend; and about 5 wt % to about 20 wt % of an ethylene-based polymer; wherein the first propylene-based elastomer and the second propylene-based elastomer each comprise the following: propylene and from about 2 to about 25 wt % units derived from one or more C2 or C4-C12 alpha-olefins; triad tacticity greater than about 90% and a heat of fusion less than about 75 J; and wherein the first propylene-based elastomer is different from the second propylene-based elastomer.Type: GrantFiled: November 2, 2018Date of Patent: October 20, 2020Assignee: ExxonMobil Chemical Patents Inc.Inventors: Yi Ping Ni, Thomas Cugnon, Xin Chen, Yinjie Zhang, Saifudin M. Abubakar, Willy J. J. Leysen, Tie Y. Ye, Yijin Zhang
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Publication number: 20190185649Abstract: The present invention is related to a composition with about 80 wt % to about 95 wt % of a polymer blend, wherein the polymer blend comprises (a) about 3 wt % to about 25 wt % of a first propylene-based elastomer based on the polymer blend, and (b) about 75 wt % to about 97 wt % of a second propylene-based elastomer based on the polymer blend; and about 5 wt % to about 20 wt % of an ethylene-based polymer; wherein the first propylene-based elastomer and the second propylene-based elastomer each comprise the following: propylene and from about 2 to about 25 wt % units derived from one or more C2 or C4-C12 alpha-olefins; triad tacticity greater than about 90% and a heat of fusion less than about 75 J; and wherein the first propylene-based elastomer is different from the second propylene-based elastomer.Type: ApplicationFiled: November 2, 2018Publication date: June 20, 2019Inventors: Yi Ping Ni, Thomas Cugnon, Xin Chen, Yinjie Zhang, Saifudin M. Abubakar, Willy J. J. Leysen, Tie Y. Ye, Yijin Zhang
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Patent number: 8576876Abstract: Methods and systems for determining and optimizing a throughput of a short range wireless network are provided. The method mainly includes acquiring respective time parameters in a contention access period based on information transmission characteristics of the short range wireless network; and computing and optimizing the throughput of the short range wireless network based on the respective time parameters. These time parameters are determined based on a non-persistent Carrier Sense Multiple Access CSMA mechanism. Therefore, the present invention employs a non-persistent CSMA mechanism to analyze the CAP of a short range wireless network and thus simplifies complexity in determining the network throughput and the analysis process of network optimization. As such, accurate throughput parameters of the standard network of the short range wireless network may be obtained, the network performance may be optimized and the performance of the short range wireless network is improved.Type: GrantFiled: May 29, 2012Date of Patent: November 5, 2013Assignee: Huawei Technologies Co., Ltd.Inventors: Yijin Zhang, Pingping Xu, Pei Liu
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Publication number: 20120230318Abstract: Methods and systems for determining and optimizing a throughput of a short range wireless network are provided. The method mainly includes acquiring respective time parameters in a contention access period based on information transmission characteristics of the short range wireless network; and computing and optimizing the throughput of the short range wireless network based on the respective time parameters. These time parameters are determined based on a non-persistent Carrier Sense Multiple Access CSMA mechanism. Therefore, the present invention employs a non-persistent CSMA mechanism to analyze the CAP of a short range wireless network and thus simplifies complexity in determining the network throughput and the analysis process of network optimization. As such, accurate throughput parameters of the standard network of the short range wireless network may be obtained, the network performance may be optimized and the performance of the short range wireless network is improved.Type: ApplicationFiled: May 29, 2012Publication date: September 13, 2012Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yijin Zhang, Pingping Xu, Pei Liu
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Patent number: 8208487Abstract: Methods and systems for determining and optimizing a throughput of a short range wireless network are provided. The method mainly includes acquiring respective time parameters in a contention access period based on information transmission characteristics of the short range wireless network; and computing and optimizing the throughput of the short range wireless network based on the respective time parameters. These time parameters are determined based on a non-persistent Carrier Sense Multiple Access CSMA mechanism. Therefore, the present invention employs a non-persistent CSMA mechanism to analyze the CAP of a short range wireless network and thus simplifies complexity in determining the network throughput and the analysis process of network optimization. As such, accurate throughput parameters of the standard network of the short range wireless network may be obtained, the network performance may be optimized and the performance of the short range wireless network is improved.Type: GrantFiled: March 27, 2009Date of Patent: June 26, 2012Assignee: Huawei Technologies Co., Ltd.Inventors: Yijin Zhang, Pingping Xu, Pei Liu
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Publication number: 20110290884Abstract: An exemplary bar code decoding unit includes an interface unit. The bar code image is input into the bar code decoding unit via the interface unit, and the bar code decoding unit decodes the bar code image and outputs decoded information via its interface unit.Type: ApplicationFiled: May 31, 2011Publication date: December 1, 2011Applicant: FUJIAN NEWLAND COMPUTER CO., LTD.Inventors: Qiang Cai, Jianhua Lin, Jun Wu, Chunshui Cai, Feng Liu, Yijin Zhang, Xiaodan Cai, Zhiyu Wu, Minghui Wu, Yongchang Chen
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Patent number: 7942259Abstract: A conveyor belt for use in a tubular conveyor belt system has a width and a length, and a longitudinal centerline. The conveyor belt further has a first longitudinal edge, and an opposing second longitudinal edge, wherein during use, the first longitudinal edge and the second longitudinal edge overlap to form an overlap region, thus forming the belt into a tube-like shape. The conveyor belt further has a load bearing region, wherein the load bearing region is located evenly about the belt longitudinal centerline, throughout the length of the belt. Further, there is a first anti-rotation region and a second anti-rotation region, wherein the first anti-rotation region is located between the first longitudinal edge and the load bearing region, and the second anti-rotation region is located between the second longitudinal edge and the load bearing region.Type: GrantFiled: July 28, 2009Date of Patent: May 17, 2011Assignee: Veyance Technologies, Inc.Inventors: Robin Steven, Lawrence K. Nordell, Yijin Zhang
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Publication number: 20100018841Abstract: A conveyor belt for use in a tubular conveyor belt system has a width and a length, and a longitudinal centerline. The conveyor belt further has a first longitudinal edge, and an opposing second longitudinal edge, wherein during use, the first longitudinal edge and the second longitudinal edge overlap to form an overlap region, thus forming the belt into a tube-like shape. The conveyor belt further has a load bearing region, wherein the load bearing region is located evenly about the belt longitudinal centerline, throughout the length of the belt. Further, there is a first anti-rotation region and a second anti-rotation region, wherein the first anti-rotation region is located between the first longitudinal edge and the load bearing region, and the second anti-rotation region is located between the second longitudinal edge and the load bearing region.Type: ApplicationFiled: July 28, 2009Publication date: January 28, 2010Inventors: Robin Steven, Lawrence K. Nordell, Yijin Zhang
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Publication number: 20090238163Abstract: Methods and systems for determining and optimizing a throughput of a short range wireless network are provided. The method mainly includes acquiring respective time parameters in a contention access period based on information transmission characteristics of the short range wireless network; and computing and optimizing the throughput of the short range wireless network based on the respective time parameters. These time parameters are determined based on a non-persistent Carrier Sense Multiple Access CSMA mechanism. Therefore, the present invention employs a non-persistent CSMA mechanism to analyze the CAP of a short range wireless network and thus simplifies complexity in determining the network throughput and the analysis process of network optimization. As such, accurate throughput parameters of the standard network of the short range wireless network may be obtained, the network performance may be optimized and the performance of the short range wireless network is improved.Type: ApplicationFiled: March 27, 2009Publication date: September 24, 2009Applicant: Huawei Technologies Co., Ltd.Inventors: Yijin Zhang, Pingping Xu, Pei Liu