Patents by Inventor Chi Ma
Chi Ma 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: 20210300880Abstract: The present invention relates to technical field of chemical synthesis of drugs, and provides a preparation method of Macitentan and intermediate compound thereof. Adding. THF solution containing compound II and 5-bromo-2-chloropyrimidine slowly into THF solution containing base to react, or adding THF solution containing compound II and THF solution containing 5-bromo-2-chloropyrimidine slowly at the same time into THF solution containing base to react and obtain Macitentan (shown as compound I), wherein the base is selected from sodium hydride, potassium hydride, lithium hydride or lithium bis(trimethylsilyl)amide. The selectivity of the preparation method is very good, which is suitable for industrial production. The obtained product Macitentan has good quality and high yield. And the product compound II also has good quality and high yield, its HPLC purity is up to 99.0%, the content of impurity A is less than 0.20%, the content of impurity B is less than 0.25%.Type: ApplicationFiled: September 20, 2017Publication date: September 30, 2021Applicant: Seasons Biotechnology (Taizhou) Co., Ltd.Inventors: Qiang JIA, Chi Ma, Zhengwei Yang, Jinjin YANG
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Publication number: 20210279098Abstract: A method includes receiving, by a data processing apparatus, a plurality of file operation requests, each file operation request including a priority, a deadline, and an operation type and representing a request to perform an operation on at least one file maintained in a distributed file system; identifying, by the data processing apparatus, a group of file operation requests to be executed together from the plurality of file operation requests, the identification based at least in part on at least one of: the file operations in the group of file operations being directed to a same storage system, or file operations in the group of file operations sharing a common operation type; and sending a request to execute the group of file operation requests to a system configured to perform the group of file operation requests.Type: ApplicationFiled: May 27, 2021Publication date: September 9, 2021Applicant: Google LLCInventors: Chi Ma, Kenneth J. Goldman, Yonggang Zhao, Stephen P.G. Gildea
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Publication number: 20210180410Abstract: A drill bit for cutting formation comprises a bit body, a plurality of cutters, a plurality of blades with pockets to accommodate the cutters respectively. Each of the plurality of cutters has an ultra-hard layer, two side facets extending obliquely inward from the substrate to a top surface of the ultra-hard layer, a convex portion between the two side facets. The convex portion comprises a transition surface and the transitional surface is convex as it extends between adjacent the two side facets. The curvature of the transitional surface varies along the cutter axis with the curvature at the cutting edge larger than the curvature of the cutter circumferential surface.Type: ApplicationFiled: December 11, 2020Publication date: June 17, 2021Applicants: CNPC USA CORPORATION, BEIJING HUAMEI, INC.Inventors: JIAQING YU, CHRIS D. CHENG, JIANHUA GUO, BO ZHOU, SHIJUN JIAO, CHUANG ZHANG, XU WANG, CHI MA, XIANGWEN YANG
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Patent number: 11036547Abstract: A method includes receiving, by a data processing apparatus, a plurality of file operation requests, each file operation request including a priority, a deadline, and an operation type and representing a request to perform an operation on at least one file maintained in a distributed file system; identifying, by the data processing apparatus, a group of file operation requests to be executed together from the plurality of file operation requests, the identification based at least in part on at least one of: the file operations in the group of file operations being directed to a same storage system, or file operations in the group of file operations sharing a common operation type; and sending a request to execute the group of file operation requests to a system configured to perform the group of file operation requests.Type: GrantFiled: June 25, 2019Date of Patent: June 15, 2021Assignee: Google LLCInventors: Chi Ma, Kenneth J. Goldman, Yonggang Zhao, Stephen P. G. Gildea
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Publication number: 20210138028Abstract: In embodiments, the invention provides a method of treating or preventing an adverse condition of the liver of a mammal, the method comprising administering to the mammal an effective amount of vancomycin and a checkpoint inhibitor. In embodiments, the invention provides a method of treating or preventing an adverse condition of the liver of a mammal, the method comprising administering to the mammal an effective amount of a primary bile acid.Type: ApplicationFiled: October 29, 2018Publication date: May 13, 2021Applicant: The United States of America, as represented by the Secretary, Department of Health and Human ServicInventors: Tim F. Greten, Chi Ma
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Patent number: 10916851Abstract: A mobile electronic device includes a ground plane, a first slot, a plurality of first inductive elements, a first antenna, a second antenna, a first signal source, and a second signal source. The first slot is disposed in the ground plane to form a first ground portion and a second ground portion separated from each other. The first inductive elements are respectively connected to the first ground portion and the second ground portion. The first antenna and the second antenna respectively receive a radio-frequency signal in a predetermined band. The first signal source is electrically connected between the first antenna and the first ground portion and receives the radio-frequency signal from the first antenna. The second signal source is electrically connected between the second antenna and the second ground portion and receives the radio-frequency signal from the second antenna.Type: GrantFiled: April 3, 2018Date of Patent: February 9, 2021Assignee: Acer IncorporatedInventors: Wan-Chu Wei, Hsieh-Chih Lin, Hsin-Wu Chiang, Pei-Chi Ma, Yu-Chia Chang, Pang-Chun Tsai, Chung-hao Huang
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Publication number: 20200235208Abstract: A p-type field effect transistor (pFET) includes a gate structure on a substrate, a channel region in the substrate directly under the gate structure, and a source/drain region adjacent to two sides of the gate structure. Preferably, the channel region includes a top portion and a bottom portion, in which a concentration of germanium in the bottom portion is lower than a concentration of germanium in the top portion and a depth of the top portion is equal to a depth of the bottom portion.Type: ApplicationFiled: April 1, 2020Publication date: July 23, 2020Inventors: Shi-You Liu, Tsai-Yu Wen, Ching-I Li, Ya-Yin Hsiao, Chih-Chiang Wu, Yu-Chun Liu, Ti-Bin Chen, Shao-Ping Chen, Huan-Chi Ma, Chien-Wen Yu
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Patent number: 10651275Abstract: A method for fabricating p-type field effect transistor (FET) includes the steps of first providing a substrate, forming a pad layer on the substrate, forming a well in the substrate, performing an ion implantation process to implant germanium ions into the substrate to form a channel region, and then conducting an anneal process to divide the channel region into a top portion and a bottom portion. After removing the pad layer, a gate structure is formed on the substrate and a lightly doped drain (LDD) is formed adjacent to two sides of the gate structure.Type: GrantFiled: February 11, 2018Date of Patent: May 12, 2020Assignee: UNITED MICROELECTRONICS CORP.Inventors: Shi-You Liu, Tsai-Yu Wen, Ching-I Li, Ya-Yin Hsiao, Chih-Chiang Wu, Yu-Chun Liu, Ti-Bin Chen, Shao-Ping Chen, Huan-Chi Ma, Chien-Wen Yu
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Patent number: 10584093Abstract: The present invention provides a method for preparing aniline compounds, and also provides a kind of catalyst and use thereof. This method for synthesizing an aniline compound in the invention includes following steps: use molybdenum oxide and activated carbon as catalyst, hydrazine hydrate as reducing agent, then reduce aromatic nitro compounds to aniline compounds. This method is green and high efficiency, and easy to be applied in industry.Type: GrantFiled: September 26, 2018Date of Patent: March 10, 2020Assignee: Seasons Biotechnology (Taizhou) Co., Ltd.Inventors: Qiang Jia, Chi Ma, Tianhua Ma, Zhengwei Yang
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Patent number: 10573956Abstract: A mobile device includes a carrying element, a first antenna, a second antenna, a connection element, and an extension element. The first antenna and the second antenna are disposed on the carrying element. The first antenna operates in a first frequency band through a first resonance path. The second antenna operates in the first frequency band through a second resonance path. The connection element is electrically connected to the first antenna and the second antenna. The connection element, the first antenna and the second antenna form a connection path, and the connection path, the first resonance path and the second resonance path do not overlap one another. The extension element is electrically connected to the connection element. The extension element, the connection element and the first antenna form a third resonance path, and the first antenna operates in a second frequency band through the third resonance path.Type: GrantFiled: May 23, 2018Date of Patent: February 25, 2020Assignee: Acer IncorporatedInventors: Pei-Chi Ma, Hsien-Chang Lin, Hsin-Wu Chiang, Wan-Chu Wei
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Publication number: 20190377601Abstract: A method includes receiving, by a data processing apparatus, a plurality of file operation requests, each file operation request including a priority, a deadline, and an operation type and representing a request to perform an operation on at least one file maintained in a distributed file system; identifying, by the data processing apparatus, a group of file operation requests to be executed together from the plurality of file operation requests, the identification based at least in part on at least one of: the file operations in the group of file operations being directed to a same storage system, or file operations in the group of file operations sharing a common operation type; and sending a request to execute the group of file operation requests to a system configured to perform the group of file operation requests.Type: ApplicationFiled: June 25, 2019Publication date: December 12, 2019Inventors: Chi Ma, Kenneth J. Goldman, Yonggang Zhao, Stephen P.G. Gildea
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Patent number: 10428012Abstract: The present invention relates to a preparation method of 4-isopropylamino-1-butanol, in which using cheap and readily available tetrahydrofuran and acetic acid solution of hydrogen bromide as starting materials to prepare a novel intermediate of 4-isopropylamino-1-acetoxyl butane and further obtain the target product. The present invention has advantages of convenient process operations, mild reaction conditions, economical and environment-friendly benefits, and suitability for industrial production to obtain the product with high purity and high yield.Type: GrantFiled: September 28, 2018Date of Patent: October 1, 2019Assignee: SEASONS BIOTECHNOLOGY CO., LTD.Inventors: Fanghui Tang, Chi Ma, Qiang Jia
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Patent number: 10388788Abstract: A method for forming a semiconductor device is disclosed. A p-type field-effect transistor (p-FET) is formed on a semiconductor substrate. A dielectric layer is formed on the semiconductor substrate and completely covers the p-FET. At least an opening is formed in the dielectric layer and exposes a source/drain region of the p-FET. A conductive material is then formed filling the opening, wherein the conductive material comprises a first stress; specifically, a tensile stress between 400 and 800 MPa.Type: GrantFiled: June 28, 2017Date of Patent: August 20, 2019Assignee: UNITED MICROELECTRONICS CORP.Inventors: Shao-Ping Chen, Huan-Chi Ma, Chien-Wen Yu, Kuo-Chin Hung
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Publication number: 20190214465Abstract: A method for fabricating p-type field effect transistor (FET) includes the steps of first providing a substrate, forming a pad layer on the substrate, forming a well in the substrate, performing an ion implantation process to implant germanium ions into the substrate to form a channel region, and then conducting an anneal process to divide the channel region into a top portion and a bottom portion. After removing the pad layer, a gate structure is formed on the substrate and a lightly doped drain (LDD) is formed adjacent to two sides of the gate structure.Type: ApplicationFiled: February 11, 2018Publication date: July 11, 2019Inventors: Shi-You Liu, Tsai-Yu Wen, Ching-I Li, Ya-Yin Hsiao, Chih-Chiang Wu, Yu-Chun Liu, Ti-Bin Chen, Shao-Ping Chen, Huan-Chi Ma, Chien-Wen Yu
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Patent number: 10338961Abstract: A method includes receiving, by a data processing apparatus, a plurality of file operation requests, each file operation request including a priority, a deadline, and an operation type and representing a request to perform an operation on at least one file maintained in a distributed file system; identifying, by the data processing apparatus, a group of file operation requests to be executed together from the plurality of file operation requests, the identification based at least in part on at least one of: the file operations in the group of file operations being directed to a same storage system, or file operations in the group of file operations sharing a common operation type; and sending a request to execute the group of file operation requests to a system configured to perform the group of file operation requests.Type: GrantFiled: September 15, 2016Date of Patent: July 2, 2019Assignee: Google LLCInventors: Chi Ma, Kenneth J. Goldman, Yonggang Zhao, Stephen P. G. Gildea
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Publication number: 20190140341Abstract: A mobile device includes a carrying element, a first antenna, a second antenna, a connection element, and an extension element. The first antenna and the second antenna are disposed on the carrying element. The first antenna operates in a first frequency band through a first resonance path. The second antenna operates in the first frequency band through a second resonance path. The connection element is electrically connected to the first antenna and the second antenna. The connection element, the first antenna and the second antenna form a connection path, and the connection path, the first resonance path and the second resonance path do not overlap one another. The extension element is electrically connected to the connection element. The extension element, the connection element and the first antenna form a third resonance path, and the first antenna operates in a second frequency band through the third resonance path.Type: ApplicationFiled: May 23, 2018Publication date: May 9, 2019Applicant: Acer IncorporatedInventors: Pei-Chi Ma, Hsien-Chang Lin, Hsin-Wu Chiang, Wan-Chu Wei
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Publication number: 20190100486Abstract: The present invention provides a method for preparing aniline compounds, and also provides a kind of catalyst and use thereof. This method for synthesizing an aniline compound in the invention includes following steps: use molybdenum oxide and activated carbon as catalyst, hydrazine hydrate as reducing agent, then reduce aromatic nitro compounds to aniline compounds. This method is green and high efficiency, and easy to be applied in industry.Type: ApplicationFiled: September 26, 2018Publication date: April 4, 2019Applicant: Seasons Biotechnology (Taizhou) Co., Ltd.Inventors: Qiang JIA, Chi MA, Tianhua MA, Zhengwei YANG
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Publication number: 20190084921Abstract: The present invention relates to a preparation method of 4-isopropylamino-1-butanol, in which using cheap and readily available tetrahydrofuran and acetic acid solution of hydrogen bromide as starting materials to prepare a novel intermediate of 4-isopropylamino-1-acetoxyl butane and further obtain the target product. The present invention has advantages of convenient process operations, mild reaction conditions, economical and environment-friendly benefits, and suitability for industrial production to obtain the product with high purity and high yield.Type: ApplicationFiled: September 28, 2018Publication date: March 21, 2019Inventors: Fanghui Tang, Chi Ma, Qiang Jia
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Publication number: 20190074590Abstract: A mobile electronic device includes a ground plane, a first slot, a plurality of first inductive elements, a first antenna, a second antenna, a first signal source, and a second signal source. The first slot is disposed in the ground plane to form a first ground portion and a second ground portion separated from each other. The first inductive elements are respectively connected to the first ground portion and the second ground portion. The first antenna and the second antenna respectively receive a radio-frequency signal in a predetermined band. The first signal source is electrically connected between the first antenna and the first ground portion and receives the radio-frequency signal from the first antenna. The second signal source is electrically connected between the second antenna and the second ground portion and receives the radio-frequency signal from the second antenna.Type: ApplicationFiled: April 3, 2018Publication date: March 7, 2019Applicant: Acer IncorporatedInventors: Wan-Chu Wei, Hsieh-Chih Lin, Hsin-Wu Chiang, Pei-Chi Ma, Yu-Chia Chang, Pang-Chun Tsai, Chung-hao Huang
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Patent number: 10144701Abstract: The present invention relates to a preparation method of 4-isopropylamino-1-butanol, in which using cheap and readily available tetrahydrofuran and acetic acid solution of hydrogen bromide as starting materials to prepare a novel intermediate of 4-isopropylamino-1-acetoxyl butane and further obtain the target product. The present invention has advantages of convenient process operations, mild reaction conditions, economical and environment-friendly benefits, and suitability for industrial production to obtain the product with high purity and high yield.Type: GrantFiled: March 31, 2016Date of Patent: December 4, 2018Assignee: Seasons Biotechnology (Taizhou) Co., Ltd.Inventors: Fanghui Tang, Chi Ma, Qiang Jia