Patents by Inventor Yuguang Liu
Yuguang Liu 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: 20240082897Abstract: A hot extrusion die for a special-shaped square pipe includes a die cavity sleeve with a special-shaped cavity. A hot extrusion mandrel is arranged in the die cavity sleeve. An area between the die cavity sleeve and the hot extrusion mandrel forms a die cavity hole. A first extrusion diversion hole and a second extrusion diversion hole are arranged below the die cavity hole. An integral centroid of the die cavity hole is located at a circle center of a radial cross section of the die cavity sleeve. Further disclosed is a hot extrusion integral forming method for a special-shaped square pipe, including: heating and expanding a blank material; heating the blank material again after expanding; performing hot extrusion on the blank material; and cooling the formed special-shaped square pipe in air to a room temperature, and inspecting surface quality and mechanical properties of the special-shaped square pipe.Type: ApplicationFiled: April 15, 2021Publication date: March 14, 2024Applicants: CENTRAL IRON AND STEEL RESEARCH INSTITUTE, HANDAN XINXING SPECIAL STEEL PIPES CO. , LTD.Inventors: Zhenbao LIU, Xiaohui WANG, Jianxiong LIANG, Yongqing SUN, Changjun WANG, Zhiyong YANG, Yuguang GAO, Jie GAO, Fuqiang LIU, Ailiang ZHANG
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Patent number: 11928435Abstract: The present disclosure provides an event extraction method, an event extraction device and an electronic device, and it relates to the field of computer data processing, in particular to the field of knowledge graph. The event extraction method includes: acquiring text information; determining a plurality of pieces of question information ranked in a sequential order in accordance with the text information; and inputting vector information for each piece of question information into an extraction model in accordance with the sequential order to acquire extraction information for each piece of question information.Type: GrantFiled: September 28, 2020Date of Patent: March 12, 2024Assignee: Beijing Baidu Netcom Science Technology Co., Ltd.Inventors: Lu Pan, Yuguang Chen, Fayuan Li, Cuiyun Han, Yuanzhen Liu, Jiayan Huang
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Publication number: 20230416847Abstract: Materials and methods are provided herein for determining if a subject has, or is at risk of developing, a clinical condition (e.g., cervical cancer). For example, this document provides a cost-effective self-test for determining whether a biological fluid from a subject contains a high-risk HPV strain, and a method for use of the self-test.Type: ApplicationFiled: September 24, 2021Publication date: December 28, 2023Inventors: Marina R. WALTHER-ANTONIO, Yuguang LIU, Samuel P. KOUNAVES, Dongyu LIU, Miles CLARK
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Publication number: 20230133186Abstract: This document provides digital microfluidics devices. For example, point-of-care digital microfluidics devices for removing white blood cells from a blood sample and preparing bacterial DNA in the sample for detection and/or identification are provided.Type: ApplicationFiled: March 19, 2021Publication date: May 4, 2023Inventors: Yuguang Liu, Marina R. Walther-Antonio, Nicholas Chia, Heidi Nelson
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Patent number: 11536723Abstract: Microfluidic devices and systems are provided. Methods for conducting immune assays with the devices and systems are also provided.Type: GrantFiled: May 18, 2018Date of Patent: December 27, 2022Assignee: Mayo Foundation for Medical Education and ResearchInventors: Nicholas Chia, William A. Faubion, Yuguang Liu, Marina R. Walther-Antonio
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Publication number: 20200166509Abstract: Microfluidic devices and systems are provided. Methods for conducting immune assays with the devices and systems are also provided.Type: ApplicationFiled: May 18, 2018Publication date: May 28, 2020Applicant: Mayo Foundation for Medical Education and ResearchInventors: Nicholas Chia, William A. Faubion, Yuguang Liu, Marina R. Walther-Antonio
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Publication number: 20190153552Abstract: Materials and methods are provided herein for determining if a subject has, or is at risk of developing, a clinical condition (e.g., cervical cancer). For example, this document provides a cost-effective self-test for determining whether a biological fluid from a subject contains a high-risk HPV strain, and a method for use of the self-test.Type: ApplicationFiled: May 10, 2017Publication date: May 23, 2019Applicant: Mayo Foundation for Medical Education and ResearchInventors: Marina R. Walther-Antonio, Yuguang Liu
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Patent number: 8296045Abstract: The present invention provides a traffic information processing apparatus and method, the apparatus comprises a format unifying device which unifies input traffic information with different formats to traffic information with unified format; and a traffic information integrating device which corrects and/or complements the traffic information with unified format based on a knowledge base to obtain traffic information which is consistent with each other, so as to integrate the traffic information, wherein the knowledge base is external to the apparatus or internal to the apparatus. The traffic information processing apparatus and method according to the present invention can process traffic information with spatial inconsistence, temporal inconsistence and semantic inconsistence so as to integrate effectively the traffic information from a variety of heterogeneous information sources and ensure the accuracy, completeness and reliability of traffic data.Type: GrantFiled: June 26, 2008Date of Patent: October 23, 2012Assignee: NEC (China) Co., Ltd.Inventors: Hongwei Qi, Qiangze Feng, Yuguang Liu, Toshikazu Fukushima, Bangyong Liang, Xin Meng
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Patent number: 8180628Abstract: The present invention provides an apparatus for expanding a query requirement, comprising: a query requirement understanding device which generates an explicit query requirement according to a user query request; and a query requirement expanding device which generates an implicit query requirement associated with the explicit query requirement. The query requirement understanding device generates an explicit query requirement including a query concept and a question type by searching a knowledge base and a language base, and the query requirement expanding device generates an implicit query requirement including a query concept and a question type by searching the knowledge base, the language base and a relevancy database. The present invention further provides a method for expanding a query requirement. The apparatus and method for expanding a query requirement according to the present invention can facilitate a user's query and provide the user with an accurate, comprehensive query answer.Type: GrantFiled: July 3, 2008Date of Patent: May 15, 2012Assignee: NEC (China) Co., Ltd.Inventors: Qiangze Feng, Hongwei Qi, Toshikazu Fukushima, Bangyong Liang, Xin Meng, Yuguang Liu
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Patent number: 7937402Abstract: A natural language based location query system and a method thereof. The system comprises a receiving device which receives a request for natural language query from a user terminal; an access device which accesses a location ontology base and a location query language base that are external to the system or internal in the system, wherein the location ontology base comprising knowledge descriptions about the field of a location service, and the location query language base comprising a language model for the location service query; a natural language query processing device which performs at least one of a fuzzy processing and an indirection processing on the received request for natural language query by searching the location ontology base and the location query language base with the access device, retrieves location information corresponding to the request from a location database; and a sending device which sends the location information to the user terminal.Type: GrantFiled: July 9, 2007Date of Patent: May 3, 2011Assignee: NEC (China) Co., Ltd.Inventors: Qiangze Feng, Hongwei Qi, Yuguang Liu, Huifeng Liu, Yabo Wang, Xiaowei Liu, Toshikazu Fukushima
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Patent number: 7908075Abstract: The invention provides a map knowledge base generating device and a method thereof, and a traffic information query system and a method thereof. The traffic information query system, comprises: a map knowledge base generating section for generating knowledge related to attributes of roads and traffic points, attribute values corresponding to the attributes, and spatial information of the attribute values based on an electronic map so as to form a map knowledge base; and a traffic query processing section for receiving and analyzing a query form a user terminal, decomposing the query if it is determined that the query can be decomposed according to the map knowledge base, and searching a traffic information database according to the decomposed the query request.Type: GrantFiled: November 14, 2006Date of Patent: March 15, 2011Assignee: NEC (China) Co., Ltd.Inventors: Hongwei Qi, Yuguang Liu, Yabo Wang, Xiaowei Liu, Huifeng Liu
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Publication number: 20090037087Abstract: The present invention provides a traffic information processing apparatus and method, the apparatus comprises a format unifying device which unifies input traffic information with different formats to traffic information with unified format; and a traffic information integrating device which corrects and/or complements the traffic information with unified format based on a knowledge base to obtain traffic information which is consistent with each other, so as to integrate the traffic information, wherein the knowledge base is external to the apparatus or internal to the apparatus. The traffic information processing apparatus and method according to the present invention can process traffic information with spatial inconsistence, temporal inconsistence and semantic inconsistence so as to integrate effectively the traffic information from a variety of heterogeneous information sources and ensure the accuracy, completeness and reliability of traffic data.Type: ApplicationFiled: June 26, 2008Publication date: February 5, 2009Applicant: NEC (CHINA) CO., LTD.Inventors: Hongwei QI, Qiangze FENG, Yuguang LIU, Toshikazu FUKUSHIMA, Bangyong LIANG, Xin MENG
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Publication number: 20090012778Abstract: The present invention provides an apparatus for expanding a query requirement, comprising: a query requirement understanding device which generates an explicit query requirement according to a user query request; and a query requirement expanding device which generates an implicit query requirement associated with the explicit query requirement. The query requirement understanding device generates an explicit query requirement including a query concept and a question type by searching a knowledge base and a language base, and the query requirement expanding device generates an implicit query requirement including a query concept and a question type by searching the knowledge base, the language base and a relevancy database. The present invention further provides a method for expanding a query requirement. The apparatus and method for expanding a query requirement according to the present invention can facilitate a user's query and provide the user with an accurate, comprehensive query answer.Type: ApplicationFiled: July 3, 2008Publication date: January 8, 2009Applicant: NEC (CHINA) CO., LTD.Inventors: Qiangze Feng, Hongwei Qi, Toshikazu Fukushima, Bangyong Liang, Xin Meng, Yuguang Liu
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Publication number: 20080010259Abstract: A natural language based location query system and a method thereof. The system comprises a receiving device which receives a request for natural language query from a user terminal; an access device which accesses a location ontology base and a location query language base that are external to the system or internal in the system, wherein the location ontology base comprising knowledge descriptions about the field of a location service, and the location query language base comprising a language model for the location service query; a natural language query processing device which performs at least one of a fuzzy processing and an indirection processing on the received request for natural language query by searching the location ontology base and the location query language base with the access device, retrieves location information corresponding to the request from a location database; and a sending device which sends the location information to the user terminal.Type: ApplicationFiled: July 9, 2007Publication date: January 10, 2008Applicant: NEC (CHINA) CO., LTD.Inventors: Qiangze FENG, Hongwei QI, Yuguang LIU, Huifeng LIU, Yabo WANG, Xiaowei LIU, Toshikazu FUKUSHIMA
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Publication number: 20070118275Abstract: The invention provides a traffic information gathering device, a traffic information gathering method, a traffic information gathering and searching system and a traffic information gathering and searching method.Type: ApplicationFiled: November 14, 2006Publication date: May 24, 2007Inventors: Hongwei Qi, Yuguang Liu, Yabo Wang, Xiaowei Liu, Huifeng Liu
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Publication number: 20070118564Abstract: The invention provides a map knowledge base generating device and a method thereof, and a traffic information query system and a method thereof. The traffic information query system, comprises: a map knowledge base generating section for generating knowledge related to attributes of roads and traffic points, attribute values corresponding to the attributes, and spatial information of the attribute values based on an electronic map so as to form a map knowledge base; and a traffic query processing section for receiving and analyzing a query form a user terminal, decomposing the query if it is determined that the query can be decomposed according to the map knowledge base, and searching a traffic information database according to the decomposed the query request.Type: ApplicationFiled: November 14, 2006Publication date: May 24, 2007Inventors: Hongwei Qi, Yuguang Liu, Yabo Wang, Xiaowei Liu, Huifeng Liu
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Patent number: D968995Type: GrantFiled: July 14, 2021Date of Patent: November 8, 2022Inventor: Yuguang Liu