Patents by Inventor Jilin He
Jilin He 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).
-
Patent number: 11859314Abstract: A method for preparing large size beta-type ammonium tetramolybdate monocrystal particle includes industrial ammonium molybdate, ammonia, de-ionized water are used to prepare ammonium molybdate solution with concentration of 0.2˜0.6 g/ml; pH is adjusted to 5˜7, temperature is adjusted to the first temperature of 70˜90° C. to obtain the first ammonium molybdate solution; beta-type ammonium tetramolybdate crystal seed is put into crystallization container, and the first ammonium molybdate solution is poured in the crystallization container, to form crystallization system; the crystallization system stands still at room temperature, naturally cooling, the beta-type ammonium tetramolybdate crystal seed grows into large size beta-type ammonium tetramolybdate monocrystal particle. A beta-type ammonium tetramolybdate crystal seed is obtained by constant-temperature crystallization at 70˜90° C.Type: GrantFiled: June 7, 2022Date of Patent: January 2, 2024Assignee: ZHENGZHOU UNIVERSITYInventors: Xiaochao Wu, Qingkui Li, Jing Zhang, Kaijun Yang, Chengduo Wang, Jilin He
-
Publication number: 20230381213Abstract: A nontoxic anticancer compound is a derivative of 20-O-?-(D-glucopyranosyl)-20(S)-protopanaxadiol (CK) having at least one of the glucose hydroxyl groups replaced with at least one acetal group. The derivative enhances binding to a mitochondrial membrane protein and is more cytotoxic to cancerous cells than CK. The derivative can be an acetal of an unsubstituted or substituted aromatic group, such as an acetal formed from a substituted 1-(dimethoxymethyl)-benzene. One or more of the CK derivative (CKD) anticancer compounds can be used as an active portion of an anticancer medicament.Type: ApplicationFiled: May 11, 2023Publication date: November 30, 2023Inventors: Chi-Ming CHE, Yungen LIU, Jilin HE, Chun-Nam LOK
-
Publication number: 20220403545Abstract: A method for preparing large size beta-type ammonium tetramolybdate monocrystal particle includes industrial ammonium molybdate, ammonia, de-ionized water are used to prepare ammonium molybdate solution with concentration of 0.2˜0.6 g/ml; pH is adjusted to 5˜7, temperature is adjusted to the first temperature of 70˜90° C. to obtain the first ammonium molybdate solution; beta-type ammonium tetramolybdate crystal seed is put into crystallization container, and the first ammonium molybdate solution is poured in the crystallization container, to form crystallization system; the crystallization system stands still at room temperature, naturally cooling, the beta-type ammonium tetramolybdate crystal seed grows into large size beta-type ammonium tetramolybdate monocrystal particle. A beta-type ammonium tetramolybdate crystal seed is obtained by constant-temperature crystallization at 70˜90° C.Type: ApplicationFiled: June 7, 2022Publication date: December 22, 2022Inventors: Xiaochao WU, Qingkui LI, Jing ZHANG, Kaijun YANG, Chengduo WANG, Jilin HE
-
Patent number: 11486034Abstract: A method of preparing an ITO ceramic target includes that: In2O3 powder with mass fraction of 90˜97 and SnO2 powder with mass fraction of 10˜3 are ball-milled and mixed with deionized water, diluent, binder and polymer material by a sand mill to obtain an ITO ceramic slurry with a solid content between 70˜80% and a viscosity between 120˜300 mpa·s, with an average particle size D50 of the mixed powder controlled at 100˜300 nm; the ITO ceramic slurry is shaped by a pressure grouting to obtain an ITO ceramic green body with a relative density of 58˜62%; the ITO ceramic green body is put into a degreasing and sintering integrated furnace, and under a degreasing temperature of 700˜800° C., the ITO ceramic target is degreased in an atmospheric oxygen atmosphere for the time set to 12˜36 hours; the temperature increases from the degreasing temperature to the first sintering temperature of 1,600˜1,650° C.Type: GrantFiled: May 13, 2020Date of Patent: November 1, 2022Assignee: ZHENGZHOU UNIVERSITYInventors: Jilin He, Benshuang Sun, Yongchun Shu, Yang Liu, Jie Chen, Xueyun Zeng
-
Patent number: 11479475Abstract: A method of preparing an indium oxide spherical powder with a controllable grain shape includes: (1) reacting a sulfuric acid solution, and then adding a nitric acid solution, to react with the metal indium to obtain a mixed solution system containing indium sulfate and indium nitrate; (2) adjusting a concentration of indium ions in the mixed solution system to between 0.45˜0.6M; (3) performing a precipitation reaction of the mixed solution with a precipitant, until a pH value of the solution is between 9˜10, and then having the solution precipitated and aged to obtain an indium hydroxide precursor slurry; (4) using a ceramic membrane to filter and wash the precursor slurry, and ending the washing to obtain a purified precursor sample; (5) drying the precursor sample at 80˜130° C.; and (6) ball-milling the precursor sample, and calcining the precursor at a calcination temperature to obtain the indium oxide powder.Type: GrantFiled: May 13, 2020Date of Patent: October 25, 2022Assignee: ZHENGZHOU UNIVERSITYInventors: Jie Chen, Jilin He, Benshuang Sun, Yongchun Shu, Xueyun Zeng, Yang Liu
-
Patent number: 11401600Abstract: A variable-temperature and fast-sintering process for an alumina-doped zinc oxide target material is provided. Integrated degreasing and sintering processes are carried out on an alumina-doped zinc oxide biscuit, The degreasing process is carried out in air atmosphere, and a high-density alumina-doped zinc oxide target material is produced by a variable-temperature treatment during the sintering process under a state of circulating controllable mixed atmosphere. The mixed atmosphere is air and oxygen. As a result, a sintering time is greatly reduced, so that a fast-activated sintering is realized to inhibit grain growth.Type: GrantFiled: September 29, 2021Date of Patent: August 2, 2022Assignee: ZHENGZHOU UNIVERSITYInventors: Benshuang Sun, Yang Liu, Jilin He, Xueyun Zeng, Yongchun Shu, Jie Chen, Zhenhua Hao
-
Publication number: 20210276879Abstract: A method of preparing an indium oxide spherical powder with a controllable grain shape includes: (1) reacting a sulfuric acid solution, and then adding a nitric acid solution, to react with the metal indium to obtain a mixed solution system containing indium sulfate and indium nitrate; (2) adjusting a concentration of indium ions in the mixed solution system to between 0.45˜0.6M; (3) performing a precipitation reaction of the mixed solution with a precipitant, until a pH value of the solution is between 9-10, and then having the solution precipitated and aged to obtain an indium hydroxide precursor slurry; (4) using a ceramic membrane to filter and wash the precursor slurry, and ending the washing to obtain a purified precursor sample; (5) drying the precursor sample at 80˜130° C.; and (6) ball-milling the precursor sample, and calcining the precursor at a calcination temperature to obtain the indium oxide powder.Type: ApplicationFiled: May 13, 2020Publication date: September 9, 2021Inventors: Jie CHEN, Jilin HE, Benshuang SUN, Yongchun SHU, Xueyun ZENG, Yang LIU
-
Publication number: 20210277513Abstract: A method of preparing an ITO ceramic target includes that: In2O3 powder with mass fraction of 90˜97 and SnO2 powder with mass fraction of 10˜3 are ball-milled and mixed with deionized water, diluent, binder and polymer material by a sand mill to obtain an ITO ceramic slurry with a solid content between 70˜80% and a viscosity between 120˜300 mpa·s, with an average particle size D50 of the mixed powder controlled at 100˜300 nm; the ITO ceramic slurry is shaped by a pressure grouting to obtain an ITO ceramic green body with a relative density of 58˜62%; the ITO ceramic green body is put into a degreasing and sintering integrated furnace, and under a degreasing temperature of 700˜800° C., the ITO ceramic target is degreased in an atmospheric oxygen atmosphere for the time set to 12˜36 hours; the temperature increases from the degreasing temperature to the first sintering temperature of 1,600˜1,650° C.Type: ApplicationFiled: May 13, 2020Publication date: September 9, 2021Inventors: Jilin HE, Benshuang SUN, Yongchun SHU, Yang LIU, Jie CHEN, Xueyun ZENG
-
Patent number: 7666247Abstract: A method for spherically granulating and agglomerating metal particles such as tantalum and/or niobium powders is described in the present invention, which includes the steps of: a). comminuting the metal particles to form fine particles having D50 less than 50 ?m; b). granulating the comminuted metal particles comprising volatile liquid, for example, tantalum and/or niobium particles comprising volatile liquid, to form wet spherical particles; c). still drying the wet spherical particles and removing volatile liquid to form flowable pre-agglomerated particles with increased bulk density; d). heat treating the pre-agglomerated particles; e). screening the heat treated powder to obtain the flowable agglomerated particles. The present invention provides a flowable spherical agglomerated metal particles, and especially tantalum and/or niobium particles having improved properties. The present agglomerated tantalum powder have a flow rate of at least about 2.0 g/sec, a BET surface area of from about 0.Type: GrantFiled: February 17, 2006Date of Patent: February 23, 2010Assignee: Ningxia Orient Tantalum Industry Co., Ltd.Inventors: Jilin He, Luntao Pan, Aiguo Zheng, Yuewei Cheng, Yuezhong Ma, Hongdong Liu, Guoqi Yang, Chunxiang Wang, Yanping Wang, Shiping Zheng
-
Publication number: 20070193409Abstract: A method for spherically granulating and agglomerating metal particles such as tantalum and/or niobium powders is described in the present invention, which includes the steps of: a). comminuting the metal particles to form fine particles having D50 less than 50 ?m; b). granulating the comminuted metal particles comprising volatile liquid, for example, tantalum and/or niobium particles comprising volatile liquid, to form wet spherical particles; c). still drying the wet spherical particles and removing volatile liquid to form flowable pre-agglomerated particles with increased bulk density; d). heat treating the pre-agglomerated particles; e). screening the heat treated powder to obtain the flowable agglomerated particles. The present invention provides a flowable spherical agglomerated metal particles, and especially tantalum and/or niobium particles having improved properties. The present agglomerated tantalum powder have a flow rate of at least about 2.0 g/sec, a BET surface area of from about 0.Type: ApplicationFiled: February 17, 2006Publication date: August 23, 2007Applicant: Ningxia Orient Tantalum Industry Co., Ltd.Inventors: Jilin He, Luntao Pan, Aiguo Zheng, Yuewei Cheng, Yuezhong Ma, Hongdong Liu, Guoqi Yang, Chunxiang Wang, Yanping Wang, Shiping Zheng
-
Patent number: 6786951Abstract: A process of the production of high surface area tantalum and/or niobium powders via the reduction of the corresponding tantalum and/or niobium oxides is disclosed, wherein the reduction is carried out by reacting the tantalum and/or niobium oxides with at least one metal halide selected form the group consisting of halides of Mg, Ca, Sr, Ba and Ce, and an alkali metal at elevation temperature so as to form the tantalum and/or niobium powders. The process of the present invention has the advantages of: simple operation, the tantalum and/or niobium powders obtained have high surface area, high purity, good flowability, therefore are particularly suitable for manufacturing electrolytic capacitors.Type: GrantFiled: September 30, 2002Date of Patent: September 7, 2004Assignee: Ningxia Orient Tantalum Industry Co., Ltd.Inventors: Jilin He, Luntao Pan, Ningfeng Yuan, Xiaoli Wen, Xingbang Li
-
Publication number: 20030110890Abstract: A process for the production of high surface area tantalum and/or niobium powders via the reduction of the corresponding tantalum and/or niobium oxides is disclosed, wherein the reduction is carried out by reacting the tantalum and/or niobium oxides with at least one metal halide selected from the group consisting of halides of Mg, Ca, Sr, Ba and Ce, and an alkali metal at elevated temperature so as to form the tantalum and/or niobium powders. The process of the present invention has the advantages of: simple operation, the tantalum and/or niobium powders obtained have high surface area, high purity, good flowability, therefore are particularly suitable for manufacturing electrolytic capacitors.Type: ApplicationFiled: September 30, 2002Publication date: June 19, 2003Inventors: Jilin He, Luntao Pan, Ningfeng Yuan, Xiaoli Wen, Xingbang Li