Patents by Inventor Yunhai LIU
Yunhai 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).
-
Publication number: 20240080610Abstract: A speaker module and a headset (100) are provided. The speaker module is used for the headset (100). The headset (100) includes a housing (1). The speaker module includes a first speaker unit (4a) and a second speaker unit (4b). An outer surface of a first diaphragm assembly (4a21) of the first speaker unit (4a) faces a first side, the second speaker unit (4b) is located on one side of a circumferential direction of the first speaker unit (4a), the second speaker unit (4b) emits sound toward the first side, and sound emission frequency of the second speaker unit (4b) is greater than sound emission frequency of the first speaker unit (4a).Type: ApplicationFiled: August 25, 2022Publication date: March 7, 2024Inventors: Jinhua LIU, Jianfei CHU, Yunhai LI, Chuanguo WANG
-
Publication number: 20240066602Abstract: A high-throughput 3D printing system for preparing multi-component, small sized samples, includes a raw material supply module, providing a various kinds of metal powders for printing small sized samples; the first mixer module, mixing the metal powders obtained from the raw material supply module to generate the first blended metal powders; the second mixer module, mixing the first mixed metal powders, in order to generate the second blended metal powders for printing small sized samples; the first printing module, printing the secondary blended metal powder into a small-sized sample; a control module, controlling other functional modules of the high-throughput 3D printing system for generating small-size samples.Type: ApplicationFiled: November 22, 2022Publication date: February 29, 2024Inventors: Lei Zhao, Hui Wang, Lixia Yang, Haizhou Wang, Xuejing Shen, Yunhai Jia, Dongling Li, Xing Yu, Suran Liu
-
Patent number: 11389780Abstract: Disclosed is a method for preparing ?-phenylethanol. The method comprises the following steps: (1) reducing a catalyst in a reactor in advance; (2) introducing pre-heated hydrogen gas to warm the reactor to a predetermined temperature; and (3) introducing a raw material styrene oxide to perform a hydrogenation reaction so as to obtain the ?-phenylethanol. The catalyst is Ni—Cu/Al2O3 nanosized self-assembled catalyst. The reactor is an ultrasonic field micro-packed bed reactor. The method of the present invention enables the selectivity of the ?-phenylethanol to reach 99% or more.Type: GrantFiled: March 14, 2017Date of Patent: July 19, 2022Assignee: WANHUA CHEMICAL GROUP CO., LTD.Inventors: Wei Zeng, Changsheng Chen, Yuan Li, Zaigang Yang, Hengdong Yang, Jianglin Hu, Yunhai Liu, Ke Ding, Yuanye Bao
-
Patent number: 10974233Abstract: The present invention provides a method for preparing 1,5-pentanediol via hydrogenolysis of tetrahydrofurfuryl alcohol. The catalyst used in the method is prepared by supporting a noble metal and a promoter on an organic polymer supporter or an inorganic hybrid material supporter, wherein the supporter is functionalized by a nitrogen-containing ligand. When the catalyst is used in the hydrogenolysis of tetrahydrofurfuryl alcohol to prepare 1,5-pentanediol, a good reaction activity and a high selectivity can be achieved. The promoter and the nitrogen-containing ligand in the supporter are bound to the catalyst through coordination, thereby the loss of the promoter is significantly decreased, and the catalyst has a particularly high stability. The lifetime investigation of the catalyst, which has been reused many times or used continuously for a long term, suggests that the catalyst has no obvious change in performance, thus reducing the overall process production cost.Type: GrantFiled: March 27, 2017Date of Patent: April 13, 2021Assignee: WANHUA CHEMICAL GROUP CO., LTD.Inventors: Jianglin Hu, Yunhai Liu, Yuan Li, Qingmei Jiang, Yanfang Song, Yang Yang, Changsheng Chen, Ke Ding, Wei Zeng, Hengdong Yang, Kun Wang, Weiqi Hua
-
Patent number: 10898883Abstract: An organic-base functionalized silicalite-1 molecular sieve-encapsulated metal nanoparticles catalyst and a preparation method therefor, as well as a method for preparing 1,2-pentanediol from biomass-derived furfuryl alcohol by hydrogenolysis using said catalyst. When the catalyst is used in a reaction preparing 1,2-pentanediol from furfuryl alcohol by hydrogenolysis, the catalyst has high hydrogenolysis activity under relatively mild reaction conditions, significantly increasing the conversion rate of furfuryl alcohol and 1,2-pentanediol selectivity in the reaction, while also not generating obvious byproducts furfuryl alcohol polymers; the catalyst has good stability and long life, and may be recovered for reuse after the reaction is complete by means of a simple filtration, greatly reducing reaction costs and separation difficulty.Type: GrantFiled: August 2, 2017Date of Patent: January 26, 2021Assignee: Wanhua Chemical Group Co., Ltd.Inventors: Jianglin Hu, Yunhai Liu, Xinjian Bian, Yuan Li, Qingmei Jiang, Changsheng Chen, Yanfang Song, Yang Yang, Wei Zeng, Ke Ding, Hengdong Yang, Kun Wang, Weiqi Hua
-
Publication number: 20200298198Abstract: Disclosed is a method for preparing ?-phenylethanol. The method comprises the following steps: (1) reducing a catalyst in a reactor in advance; (2) introducing pre-heated hydrogen gas to warm the reactor to a predetermined temperature; and (3) introducing a raw material styrene oxide to perform a hydrogenation reaction so as to obtain the ?-phenylethanol. The catalyst is Ni—Cu/Al2O3 nanosized self-assembled catalyst. The reactor is an ultrasonic field micro-packed bed reactor. The method of the present invention enables the selectivity of the ?-phenylethanol to reach 99% or more.Type: ApplicationFiled: March 14, 2017Publication date: September 24, 2020Inventors: Wei ZENG, Changsheng CHEN, Yuan LI, Zaigang YANG, Hengdong YANG, Jianglin HU, Yunhai LIU, Ke DING, Yuanye BAO
-
Publication number: 20200139353Abstract: An organic-base functionalized silicalite-1 molecular sieve-encapsulated metal nanoparticles catalyst and a preparation method therefor, as well as a method for preparing 1,2-pentanediol from biomass-derived furfuryl alcohol by hydrogenolysis using said catalyst. When the catalyst is used in a reaction preparing 1,2-pentanediol from furfuryl alcohol by hydrogenolysis, the catalyst has high hydrogenolysis activity under relatively mild reaction conditions, significantly increasing the conversion rate of furfuryl alcohol and 1,2-pentanediol selectivity in the reaction, while also not generating obvious byproducts furfuryl alcohol polymers; the catalyst has good stability and long life, and may be recovered for reuse after the reaction is complete by means of a simple filtration, greatly reducing reaction costs and separation difficulty.Type: ApplicationFiled: August 2, 2017Publication date: May 7, 2020Inventors: Jianglin HU, Yunhai LIU, Xinjian BIAN, Yuan LI, Qingmei JIANG, Changsheng CHEN, Yanfang SONG, Yang YANG, Wei ZENG, Ke DING, Hengdong YANG, Kun WANG, Weiqi HUA
-
Publication number: 20200009544Abstract: The present invention provides a method for preparing 1,5-pentanediol via hydrogenolysis of tetrahydrofurfuryl alcohol. The catalyst used in the method is prepared by supporting a noble metal and a promoter on an organic polymer supporter or an inorganic hybrid material supporter, wherein the supporter is functionalized by a nitrogen-containing ligand. When the catalyst is used in the hydrogenolysis of tetrahydrofurfuryl alcohol to prepare 1,5-pentanediol, a good reaction activity and a high selectivity can be achieved. The promoter and the nitrogen-containing ligand in the supporter are bound to the catalyst through coordination, thereby the loss of the promoter is significantly decreased, and the catalyst has a particularly high stability. The lifetime investigation of the catalyst, which has been reused many times or used continuously for a long term, suggests that the catalyst has no obvious change in performance, thus reducing the overall process production cost.Type: ApplicationFiled: March 27, 2017Publication date: January 9, 2020Inventors: Jianglin HU, Yunhai LIU, Yuan LI, Qingmei JIANG, Yanfang SONG, Yang YANG, Changsheng CHEN, Ke DING, Wei ZENG, Hengdong YANG, Kun WANG, Weiqi HUA
-
Patent number: 9280493Abstract: Embodiments of the present disclosure relate to a method and a device for enumerating input/output devices (IO devices). The method for enumerating input/output devices includes: acquiring an identifier of each processor and an identifier of each input/output (IO) centralized controller in a system; separately instructing processors to simultaneously enumerate a specific IO centralized controller and an input/output IO device connected to the specific IO centralized controller, according to the identifier of each processor and the identifier of each IO centralized controller; and acquiring related information of IO devices enumerated by the instructed processors. According to the embodiments of the present disclosure, the work of enumerating the system IO devices may be allocated to multiple processors to be carried out simultaneously, so as to greatly reduce time consumed in the enumeration process, and to accelerate a system initialization process.Type: GrantFiled: December 27, 2013Date of Patent: March 8, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Yunhai Liu, Guanyu Zhu
-
Patent number: 9116881Abstract: The present disclosure relates to a routing switch apparatus, a network switch system, and a routing switch method. The routing switch apparatus includes one or more direct memory access modules and at least two protocol conversion interfaces. The direct memory access module is configured to generate a continuous access request of a cross network node, and control data transmission in the at least two protocol conversion interfaces; each protocol conversion interface is configured to convert a communication protocol of data transmitted inside and outside the routing switch apparatus and connect the routing switch module and an external network node. The routing switch apparatus may be introduced to replace a network switch, so that cross-node memory access and IO space access can be performed directly rather than through a proxy, thereby reducing delay of the cross-node memory access and IO space access and improving overall performance of a system.Type: GrantFiled: December 14, 2012Date of Patent: August 25, 2015Assignee: Huawei Technologies Co., Ltd.Inventors: Yunhai Liu, Junfeng Diao
-
Publication number: 20140115193Abstract: Embodiments of the present disclosure relate to a method and a device for enumerating input/output devices (IO devices). The method for enumerating input/output devices includes: acquiring an identifier of each processor and an identifier of each input/output (IO) centralized controller in a system; separately instructing processors to simultaneously enumerate a specific IO centralized controller and an input/output IO device connected to the specific IO centralized controller, according to the identifier of each processor and the identifier of each IO centralized controller; and acquiring related information of IO devices enumerated by the instructed processors. According to the embodiments of the present disclosure, the work of enumerating the system IO devices may be allocated to multiple processors to be carried out simultaneously, so as to greatly reduce time consumed in the enumeration process, and to accelerate a system initialization process.Type: ApplicationFiled: December 27, 2013Publication date: April 24, 2014Applicant: Huawei Technologies Co., Ltd.Inventors: Yunhai LIU, Guanyu ZHU