Patents by Inventor Guofang Wang
Guofang Wang 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: 20240091167Abstract: Provided is the use of two-dimensional nanomaterials in the inhibition of a coronavirus, and specifically disclosed is the use of the two-dimensional nanomaterials in the preparation of a medicament for treating or preventing diseases caused by a coronavirus or of a material for adhering to or inhibiting the coronavirus. The two-dimensional nanomaterial is selected from the group consisting of copper indium thiophosphate (CIPS) nanosheet, graphene oxide nanosheet, molybdenum disulfide nanosheet, black phosphorus nanosheet and mixtures thereof. The coronavirus is selected from one of HCoV-229E, HCoV-OC43, HCoV-NL63, HCoV-HKU1, SARS-CoV, SARS-CoV2 or MERS-CoV. The diseases caused by the coronavirus are diseases caused by coronavirus infection. The material has the advantages of being simple to prepare, having a high biological safety and an excellent effect.Type: ApplicationFiled: December 22, 2021Publication date: March 21, 2024Applicants: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY, INSTITUTE OF HIGH ENERGY PHYSICS, CASInventors: Yang LI, Liming WANG, Guofang ZHANG
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Patent number: 11800785Abstract: A polycyclic aromatic compound represented by general formula (1) described below and having a bulky substituent in a molecule is used as a material for an organic device, whereby, for example, an organic EL device excellent in quantum efficiency can be provided. In particular, concentration quenching can be suppressed even if a use concentration is comparatively high, and therefore the present art is advantageous in a device production process. In formula (1) described above, R1, R3, R4 to R7, R8 to R11 and R12 to R15 are independently hydrogen, aryl or the like, X1 is —O— or >N—R (R is aryl or the like), Z1 and Z2 are a bulky substituent such as aryl, and at least one hydrogen in the compound represented by formula (1) may be replaced by halogen or deuterium.Type: GrantFiled: November 16, 2018Date of Patent: October 24, 2023Assignees: KWANSEI GAKUIN EDUCATIONAL FOUNDATION, SK MATERIALS JNC CO., LTD.Inventors: Takuji Hatakeyama, Kazushi Shiren, Yuko Yamaga, Guofang Wang, Yasuyuki Sasada
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Patent number: 11711970Abstract: To provide an organic electroluminescent device in which energy efficiency is improved. An organic electroluminescent device includes a pair of electrode layers formed of an anode layer and a cathode layer, and a luminescent layer arranged between the pair of electrode layers, in which the luminescent layer includes a host material and a dopant material, and the dopant material is an anthracene-based compound represented by formula (1), and the luminescent layer further includes a polycyclic aromatic compound represented by formula (2) or a multimer of a polycyclic aromatic compound having a plurality of structures represented by formula (2).Type: GrantFiled: January 31, 2020Date of Patent: July 25, 2023Assignees: KWANSEI GAKUIN EDUCATIONAL FOUNDATION, SK MATERIALS JNC CO., LTD.Inventors: Takuji Hatakeyama, Yukihiro Fujita, Guofang Wang
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Patent number: 11539003Abstract: By providing a novel polycyclic aromatic amino compound having an amino substituent and having a plurality of aromatic rings linked via a boron atom, an oxygen atom, or the like, for example, as in the following formula, a selection range of a material for an organic EL element is widened.Type: GrantFiled: December 11, 2017Date of Patent: December 27, 2022Assignees: Kwansei Gakuin Educational Foundation, SK Materials JNC Co., Ltd.Inventors: Takuji Hatakeyama, Guofang Wang, Yasuyuki Sasada
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Publication number: 20220376179Abstract: An object of the present invention is to provide an organic electroluminescent element having optimal light emitting characteristics. The above problem is solved by an organic electroluminescent element having a light emitting layer containing a compound of formula (1) or a multimer compound having a plurality of structures of formula (1) and a compound of formula (2). (In formula (1), ring A, ring B, and ring C each represent an aryl ring or the like, X1 and X2 each independently represent O or N—R, and the R represents an aryl or the like. In formula (2), R1 to R10 each represent an aryl or the like.Type: ApplicationFiled: November 17, 2017Publication date: November 24, 2022Inventors: Takuji HATAKEYAMA, Yukihiro FUJITA, Kazushi SHIREN, Takao KIKUCHI, Guofang WANG
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Publication number: 20220006012Abstract: A polycyclic aromatic compound represented by general formula (1) described below and having a bulky substituent in a molecule is used as a material for an organic device, whereby, for example, an organic EL device excellent in quantum efficiency can be provided. In particular, concentration quenching can be suppressed even if a use concentration is comparatively high, and therefore the present art is advantageous in a device production process. In formula (1) described above, R1, R3, R4 to R7, R8 to R11 and R12 to R15 are independently hydrogen, aryl or the like, X1 is —O— or >N—R (R is aryl or the like), Z1 and Z2 are a bulky substituent such as aryl, and at least one hydrogen in the compound represented by formula (1) may be replaced by halogen or deuterium.Type: ApplicationFiled: November 16, 2018Publication date: January 6, 2022Applicants: KWANSEI GAKUIN EDUCATIONAL FOUNDATION, JNC CORPORATIONInventors: Takuji HATAKEYAMA, Kazushi SHIREN, Yuko YAMAGA, Guofang WANG, Yasuyuki SASADA
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Patent number: 11015122Abstract: The present invention provides a liquid crystal composition formed by combining a polymerizable compound represented by formula I with a specific liquid crystal component, particularly a PSVA liquid crystal composition for displays or TV applications and a PSA-IPS liquid crystal composition for an IPS mode, and a liquid crystal display element or liquid crystal display comprising this liquid crystal composition; in particular, the polymerizable compound has a faster polymerization rate, and a “material system” formed from the selected polymerizable component and liquid crystal component should have the lowest rotary viscosity and the best photoelectric properties, and has a high VHR after (UV) photoradiation, this avoiding the problem of the occurrence of residual images to final displays.Type: GrantFiled: December 20, 2018Date of Patent: May 25, 2021Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Kui Wang, Mingxia Wang, Zhian Liang, Guoliang Yun, Ke-Lun Shu, Guofang Wang, Huifang Wang
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Patent number: 10858588Abstract: The present invention discloses a negative dielectric anisotropic liquid crystal composition, characterized in that the liquid crystal composition comprises one or more compounds represented by formula I, one or more compounds represented by formula II, one or more compounds represented by formula III and one or more compounds represented by formula IV, In the liquid crystal molecules of the composition, the van der Waals force therebetween is used as a motive force, such that the liquid crystal molecules generate an attractive force at an appropriate distance and positional relationships, thereby enabling the liquid crystal molecules to have excellent regular alignment characteristics, which is favorable for the liquid crystal molecules to modulate the transmission and blocking of light in the liquid crystal display device.Type: GrantFiled: September 10, 2018Date of Patent: December 8, 2020Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.Inventors: Mingxia Wang, Xing Zhang, Huifang Wang, Guofang Wang, Jianming Cheng, Zhe Shao, Guoliang Yun
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Patent number: 10811613Abstract: An object is to provide a novel polycyclic aromatic compound and an organic electroluminescent element using the same. By providing a novel polycyclic aromatic compound having a diarylamino group and having a plurality of aromatic rings linked to each other via a boron atom, an oxygen atom, or the like, options of a material for an organic EL element are increased. In addition, by using the novel polycyclic aromatic compound as a material for an organic electroluminescent element, an excellent organic EL element is provided.Type: GrantFiled: January 13, 2017Date of Patent: October 20, 2020Assignees: Kwansei Gakuin Educational Foundation, JNC CorporationInventors: Takuji Hatakeyama, Guofang Wang, Yohei Ono, Yuko Yamaga, Kazushi Shiren
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Publication number: 20200259096Abstract: To provide an organic electroluminescent device in which energy efficiency is improved. An organic electroluminescent device includes a pair of electrode layers formed of an anode layer and a cathode layer, and a luminescent layer arranged between the pair of electrode layers, in which the luminescent layer includes a host material and a dopant material, and the dopant material is an anthracene-based compound represented by formula (1), and the luminescent layer further includes a polycyclic aromatic compound represented by formula (2) or a multimer of a polycyclic aromatic compound having a plurality of structures represented by formula (2).Type: ApplicationFiled: January 31, 2020Publication date: August 13, 2020Applicants: KWANSEI GAKUIN EDUCATIONAL FOUNDATION, JNC CORPORATIONInventors: Takuji HATAKEYAMA, Yukihiro FUJITA, Guofang WANG
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Publication number: 20200020859Abstract: By providing a novel polycyclic aromatic amino compound having an amino substituent and having a plurality of aromatic rings linked via a boron atom, an oxygen atom, or the like, for example, as in the following formula, a selection range of a material for an organic EL element is widened.Type: ApplicationFiled: December 11, 2017Publication date: January 16, 2020Applicants: Kwansei Gakuin Educational Foundation, JNC CorporationInventors: Takuji HATAKEYAMA, Guofang WANG, Yasuyuki SASADA
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Publication number: 20190185752Abstract: The present invention provides a liquid crystal composition formed by combining a polymerizable compound represented by formula I with a specific liquid crystal component, particularly a PSVA liquid crystal composition for displays or TV applications and a PSA-IPS liquid crystal composition for an IPS mode, and a liquid crystal display element or liquid crystal display comprising this liquid crystal composition; in particular, the polymerizable compound has a faster polymerization rate, and a “material system” formed from the selected polymerizable component and liquid crystal component should have the lowest rotary viscosity and the best photoelectric properties, and has a high VHR after (UV) photoradiation, this avoiding the problem of the occurrence of residual images to final displays.Type: ApplicationFiled: December 20, 2018Publication date: June 20, 2019Inventors: Kui WANG, Mingxia WANG, Zhian LIANG, Guoliang YUN, Ke-Lun SHU, Guofang WANG, Huifang WANG
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Publication number: 20190078021Abstract: The present invention discloses a negative dielectric anisotropic liquid crystal composition, characterized in that the liquid crystal composition comprises one or more compounds represented by formula I, one or more compounds represented by formula II, one or more compounds represented by formula III and one or more compounds represented by formula IV, In the liquid crystal molecules of the composition, the van der Waals force therebetween is used as a motive force, such that the liquid crystal molecules generate an attractive force at an appropriate distance and positional relationships, thereby enabling the liquid crystal molecules to have excellent regular alignment characteristics, which is favorable for the liquid crystal molecules to modulate the transmission and blocking of light in the liquid crystal display device.Type: ApplicationFiled: September 10, 2018Publication date: March 14, 2019Inventors: MingXia WANG, Xing ZHANG, HuiFang WANG, GuoFang WANG, JianMing CHENG, Zhe SHAO, Guoliang YUN
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Publication number: 20190027694Abstract: An object is to provide a novel polycyclic aromatic compound and an organic electroluminescent element using the same. By providing a novel polycyclic aromatic compound having a diarylamino group and having a plurality of aromatic rings linked to each other via a boron atom, an oxygen atom, or the like, options of a material for an organic EL element are increased. In addition, by using the novel polycyclic aromatic compound as a material for an organic electroluminescent element, an excellent organic EL element is provided.Type: ApplicationFiled: January 13, 2017Publication date: January 24, 2019Applicants: Kwansei Gakuin Educational Foundation, JNC CorporationInventors: Takuji Hatakeyama, Guofang WANG, Yohei ONO, Yuko YAMAGA, Kazushi SHIREN
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Patent number: 9099654Abstract: Disclosed are benzofluorene compounds of formula (1) exhibiting excellent performance when applied to an organic electroluminescent device, wherein Ar1 and Ar2 are aryl which may be substituted; R1 and R2 each are independently hydrogen, alkyl which may be substituted, cycloalkyl which may be substituted or aryl which may be substituted, and at least one of R1 and R2 is aryl which may be substituted; and the substituents in Ar1, Ar2, R1 and R2 each are independently selected from the group consisting of alkyl having 1 to 24 carbon atoms, cycloalkyl having 3 to 12 carbon atoms and aryl having 6 to 30 carbon atoms.Type: GrantFiled: January 23, 2013Date of Patent: August 4, 2015Assignee: JNC CORPORATIONInventors: Guofang Wang, Akiko Kageyama, Toshihiro Koike, Manabu Uchida
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Publication number: 20100025661Abstract: The subject of the present invention is to provide an emission material which contributes to high emission efficiency, low drive voltage, excellent heat resistance and long life in an organic electroluminescent device, particularly an emission material which is excellent in emission of blue color. Further, the subject is to provide an organic electroluminescent device using the above emission material. The above subjects can be achieved by an emission material represented by Formula (1) and an organic electroluminescent device comprising the same. wherein R1 to R7 are independently hydrogen, alkyl or cycloalkyl; Ar1 is one selected from the group consisting of non-condensed aryl having 6 to 50 carbon atoms, 2-naphthyl, 9-phenanthryl, 6-chrysenyl, 2-triphenylenyl, 2-fluorenyl, 9-carbazolyl, 2-thienyl and 2-benzothienyl; and Ar2 and Ar3 are independently non-condensed aryl having 6 to 50 carbon atoms, condensed aryl having 10 to 50 carbon atoms or heteroaryl having 2 to 50 carbon atoms.Type: ApplicationFiled: June 24, 2005Publication date: February 4, 2010Inventors: Guofang Wang, Manabu Uchida, Youhei Ono
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Publication number: 20080160347Abstract: Provided is a benzofluorene compound which exhibits excellent performances when applied to an organic electroluminescent device. In the benzofluorene compound, a central five-membered ring in a benzofluorene skeleton is substituted with aryl, and a benzene ring condensed to the five-membered ring is substituted with aryl, diarylamino and the like.Type: ApplicationFiled: October 3, 2007Publication date: July 3, 2008Inventors: Guofang Wang, Akiko Kageyama, Toshihiro Koike, Manabu Uchida
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Publication number: 20070212568Abstract: The present invention relates to an organic electroluminescent device comprising an anthracene derivative represented by Formula (1) shown below as a host and at least one selected from a perylene derivative, a borane derivative, a coumarin derivative, a pyran derivative, an iridium complex and a platinum complex as a dopant. The organic electroluminescent device of the present invention has a high efficiency, a long life, a low driving voltage and a high durability in storing and driving. wherein R1 to R4 and R12 are independently hydrogen or alkyl having 1 to 12 carbon atoms; R5 to R11 are independently hydrogen, alkyl having 1 to 12 carbon atoms, cycloalkyl having 3 to 12 carbon atoms or aryl having 6 to 12 carbon atoms; and Ar is non-condensed aryl represented by Formula (3); and m is an integer of 1 to 3; wherein n is an integer of 0 to 5; R13 to R21 are independently hydrogen, alkyl having 1 to 12 carbon atoms or aryl having 6 to 12 carbon atoms.Type: ApplicationFiled: March 15, 2005Publication date: September 13, 2007Inventor: Guofang Wang
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Publication number: 20060110622Abstract: A phosphorescent device with high brightness and a long usable life including at least an emitting layer situated between a pair of electrodes and at least one hole blocking layer in direct contact with the emitting layer, wherein the phosphorescent device employs as the hole blocking layer, a compound which can be used as a blue luminescent host material.Type: ApplicationFiled: August 4, 2005Publication date: May 25, 2006Inventors: Manabu Uchida, Guofang Wang, Akiko Kageyama, Kyung Hoon Lee, Jae Man Lee, Chun Gun Park
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Publication number: 20060014046Abstract: To provide a luminescent material, especially one superior in blue light emission, which is used in an OEL device and allows the device to have higher luminescence efficiency, lower driving voltage, better thermal resistance and longer lifetime, as well as to provide an OEL device using the luminescent material. SOLUTION: A new luminescent material having an asymmetric structure with a basic anthracene skeleton is provided: In formula (1), each of R1—R4 represents hydrogen, a C1-C24 alkyl group or a C1-C24 alkoxy group. Each of A1-A5 represents hydrogen, a C1-C24 alkyl group or a C3-C24 cycloalkyl group. Each of B1 and B2 represents hydrogen, a C6-C24 aryl group, a C1-C24 alkyl group or a C3-C24 cycloalkyl group. Each of X1—X5 represents hydrogen, a C1-C24 alkyl group or a C3-C24 cycloalkyl group.Type: ApplicationFiled: July 8, 2005Publication date: January 19, 2006Inventors: Guofang Wang, Manabu Uchida, Toshihiro Koike