Patents by Inventor Motoki Yanai
Motoki Yanai 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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Patent number: 11937495Abstract: An organic light-emitting device containing both a compound represented by the following general formula (1) and a compound represented by the following general formula (2) has a high light emission efficiency. The rings a to c each are a benzene ring that can be optionally condensed, R1 and R2 each represent a substituted or unsubstituted aryl group, etc., four of R31 to R35 each are a substituted or unsubstituted carbazol-9-yl group, but all of these four are not the same, and the remaining one is a hydrogen atom, a cyano group, etc.Type: GrantFiled: August 7, 2019Date of Patent: March 19, 2024Assignees: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, KWANSEI GAKUIN EDUCATIONAL FOUNDATION, KYULUX, INC.Inventors: Hajime Nakanotani, Takuji Hatakeyama, Yasuhiro Kondo, Yasuyuki Sasada, Motoki Yanai, Chin-Yiu Chan, Masaki Tanaka, Hiroki Noda, Chihaya Adachi, Yoshitake Suzuki, Naoto Notsuka
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Patent number: 11807656Abstract: The objective of the invention is to provide a polycyclic aromatic compound in which solubility to a solvent, film formability, wet coatability, thermal stability, and in-plane orientation are improved. This objective is achieved by alight emission layer-forming composition comprising: as a first component, at least one type of dopant material selected from the group consisting of polycyclic aromatic compounds represented by general formula (A) and polycyclic aromatic oligomer compounds including a plurality of structures represented by general formula (A); as a second component, a specific low-molecular-weight host material; and, as a third component, at least one type of organic solvent. In formula (A), ring A, ring B, and ring C each independently represent an aryl ring or a hetero aryl ring, Y1 is B, and X1 and X2 each independently represent O or N—R wherein at least one of X1 and X2 is N—R.Type: GrantFiled: August 27, 2021Date of Patent: November 7, 2023Assignees: Kwansei Gakuin Educational Foundation, SK Materials JNC Co., Ltd.Inventors: Takuji Hatakeyama, Yasuhiro Kondo, Keiichi Nakamoto, Motoki Yanai
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Patent number: 11653565Abstract: By providing a novel polycyclic aromatic compound in which a plurality of aromatic rings are linked via a boron atom, a nitrogen 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: March 16, 2020Date of Patent: May 16, 2023Assignees: Kwansei Gakuin Educational Foundation, SK Materials JNC Co., Ltd.Inventors: Takuji Hatakeyama, Soichiro Nakatsuka, Hajime Gotoh, Yasuyuki Sasada, Motoki Yanai, Toshiaki Ikuta
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Patent number: 11647666Abstract: The present invention relates to a light emitting layer material comprising: a polycyclic aromatic compound (1) in which a plurality of aromatic rings are linked by a boron atom and a oxygen atom or a nitrogen atom; and a specific anthracene-based compound (3) that achieves optimum light-emission characteristics in combination with said polycyclic aromatic compound. With this light emitting layer material having optimum light emitting characteristics, it is possible to provide an excellent organic EL element. Ring A to ring C are an aryl ring or the like, Y1 is B (boron), X1 and X2 are —O— or >N—R (provided that at least one is —O—), X is a group represented by formula (3-X1), (3-X2), or (3-X3), Y is —O—, —S— or >N—R29, R29 is a hydrogen atom or an optionally substituted aryl, Ar1 to Ar4 are phenyl, a group represented by formula (4), or the like, and both Ar1 and Ar3 do not simultaneously represent a phenyl.Type: GrantFiled: April 25, 2018Date of Patent: May 9, 2023Assignees: Kwansei Gakuin Educational Foundation, SK Materials JNC Co., Ltd.Inventors: Takuji Hatakeyama, Katsuya Masuda, Yuko Yamaga, Motoki Yanai
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Patent number: 11637249Abstract: Provided is an organic electroluminescent element including a light emitting layer containing, as a dopant, at least two compounds selected from a compound group consisting of a polycyclic aromatic compound represented by the following general formula (1) and a multimer thereof: wherein the symbols are defined in the specification.Type: GrantFiled: June 12, 2018Date of Patent: April 25, 2023Assignees: KWANSEI GAKUIN EDUCATIONAL FOUNDATION, SK MATERIALS JNC CO., LTD.Inventors: Takuji Hatakeyama, Katsuya Masuda, Motoki Yanai
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Patent number: 11637250Abstract: The present invention addresses the problem of providing a polycyclic aromatic compound which has improved solubility in solvents, film formability, wet coatability and in-plane orientation. The above-described problem is solved by a composition for forming a light emitting layer, which contains, as a first component, at least one compound selected from the group consisting of compounds represented by general formula (A-1) and compounds represented by general formula (A-2), as a second component, at least one compound that has a triplet energy (ET) of 1.8-3.0 eV, and as a third component, at least one organic solvent. In the formulae, R represents a hydrogen atom, an aryl group, a heteroaryl group, a diarylamino group, a diheteroarylamino group or an aryl heteroarylamino group.Type: GrantFiled: April 28, 2020Date of Patent: April 25, 2023Assignees: Kwansei Gakuin Educational Foundation, SK Materials JNC Co., Ltd.Inventors: Takuji Hatakeyama, Yasuhiro Kondo, Keiichi Nakamoto, Motoki Yanai
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Patent number: 11407774Abstract: By providing a novel polycyclic aromatic compound in which a plurality of aromatic rings is linked via a nitrogen atom, a boron 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: August 25, 2017Date of Patent: August 9, 2022Assignees: Kwansei Gakuin Educational Foundation, SK Materials JNC Co., Ltd.Inventors: Takuji Hatakeyama, Kohei Matsui, Yusuke Watanabe, Daisuke Baba, Yasuyuki Sasada, Motoki Yanai, Toshiaki Ikuta
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Publication number: 20210395274Abstract: The objective of the invention is to provide a polycyclic aromatic compound in which solubility to a solvent, film formability, wet coatability, thermal stability, and in-plane orientation are improved. This objective is achieved by alight emission layer-forming composition comprising: as a first component, at least one type of dopant material selected from the group consisting of polycyclic aromatic compounds represented by general formula (A) and polycyclic aromatic oligomer compounds including a plurality of structures represented by general formula (A); as a second component, a specific low-molecular-weight host material; and, as a third component, at least one type of organic solvent. In formula (A), ring A, ring B, and ring C each independently represent an aryl ring or a hetero aryl ring, Y1 is B, and X1 and X2 each independently represent O or N—R wherein at least one of X1 and X2 is N—R.Type: ApplicationFiled: August 27, 2021Publication date: December 23, 2021Applicants: Kwansei Gakuin Educational Foundation, SK Materials JNC Co., Ltd.Inventors: Takuji HATAKEYAMA, Yasuhiro KONDO, Keiichi NAKAMOTO, Motoki YANAI
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Patent number: 11136341Abstract: The objective of the invention is to provide a polycyclic aromatic compound in which solubility to a solvent, film formability, wet coatability, thermal stability, and in-plane orientation are improved. This objective is achieved by a light emission layer-forming composition comprising: as a first component, at least one type of dopant material selected from the group consisting of polycyclic aromatic compounds represented by general formula (A) and polycyclic aromatic oligomer compounds including a plurality of structures represented by general formula (A); as a second component, a specific low-molecular-weight host material; and, as a third component, at least one type of organic solvent. In formula (A), ring A, ring B, and ring C each independently represent an aryl ring or a hetero aryl ring, Y1 is B, and X1 and X2 each independently represent O or N—R wherein at least one of X1 and X2 is N—R.Type: GrantFiled: February 27, 2020Date of Patent: October 5, 2021Assignees: Kwansei Gakuin Educational Foundation, SK Materials JNC Co., Ltd.Inventors: Takuji Hatakeyama, Yasuhiro Kondo, Keiichi Nakamoto, Motoki Yanai
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Publication number: 20210202851Abstract: An organic light-emitting device containing both a compound represented by the following general formula (1) and a compound represented by the following general formula (2) has a high light emission efficiency. The rings a to c each are a benzene ring that can be optionally condensed, R1 and R2 each represent a substituted or unsubstituted aryl group, etc., four of R31 to R35 each are a substituted or unsubstituted carbazol-9-yl group, but all of these four are not the same, and the remaining one is a hydrogen atom, a cyano group, etc.Type: ApplicationFiled: August 7, 2019Publication date: July 1, 2021Inventors: Hajime NAKANOTANI, Takuji HATAKEYAMA, Yasuhiro KONDO, Yasuyuki SASADA, Motoki YANAI, Chin-Yiu CHAN, Masaki TANAKA, Hiroki NODA, Chihaya ADACHI, Yoshitake SUZUKI, Naoto NOTSUKA
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Publication number: 20200266350Abstract: The present invention relates to a light emitting layer material comprising: a polycyclic aromatic compound (1) in which a plurality of aromatic rings are linked by a boron atom and a oxygen atom or a nitrogen atom; and a specific anthracene-based compound (3) that achieves optimum light-emission characteristics in combination with said polycyclic aromatic compound. With this light emitting layer material having optimum light emitting characteristics, it is possible to provide an excellent organic EL element. Ring A to ring C are an aryl ring or the like, Y1 is B (boron), X1 and X2 are —O— or >N—R (provided that at least one is —O—), X is a group represented by formula (3-X1), (3-X2), or (3-X3), Y is —O—, —S— or >N—R29, R29 is a hydrogen atom or an optionally substituted aryl, Ar1 to Ar4 are phenyl, a group represented by formula (4), or the like, and both Ar1 and Ar3 do not simultaneously represent a phenyl.Type: ApplicationFiled: April 25, 2018Publication date: August 20, 2020Applicants: Kwansei Gakuin Educational Foundation, JNC CorporationInventors: Takuji HATAKEYAMA, Katsuya MASUDA, Yuko YAMAGA, Motoki YANAI
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Publication number: 20200259089Abstract: The present invention addresses the problem of providing a polycyclic aromatic compound which has improved solubility in solvents, film formability, wet coatability and in-plane orientation. The above-described problem is solved by a composition for forming a light emitting layer, which contains, as a first component, at least one compound selected from the group consisting of compounds represented by general formula (A-1) and compounds represented by general formula (A-2), as a second component, at least one compound that has a triplet energy (ET) of 1.8-3.0 eV, and as a third component, at least one organic solvent. In the formulae, R represents a hydrogen atom, an aryl group, a heteroaryl group, a diarylamino group, a diheteroarylamino group or an aryl heteroarylamino group.Type: ApplicationFiled: April 28, 2020Publication date: August 13, 2020Applicants: Kwansei Gakuin Educational Foundation, JNC CorporationInventors: Takuji HATAKEYAMA, Yasuhiro KONDO, Keiichi NAKAMOTO, Motoki YANAI
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Publication number: 20200220083Abstract: By providing a novel polycyclic aromatic compound in which a plurality of aromatic rings are linked via a boron atom, a nitrogen 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: March 16, 2020Publication date: July 9, 2020Applicants: Kwansei Gakuin Educational Foundation, JNC CorporationInventors: Takuji HATAKEYAMA, Soichiro NAKATSUKA, Hajime GOTOH, Yasuyuki SASADA, Motoki YANAI, Toshiaki IKUTA
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Patent number: 10689402Abstract: The objective of the invention is to provide a polycyclic aromatic compound in which solubility to a solvent, film formability, wet coatability, thermal stability, and in-plane orientation are improved. This objective is achieved by a light emission layer-forming composition comprising: as a first component, at least one type of dopant material selected from the group consisting of polycyclic aromatic compounds represented by general formula (A) and polycyclic aromatic oligomer compounds including a plurality of structures represented by general formula (A); as a second component, a specific low-molecular-weight host material; and, as a third component, at least one type of organic solvent. In formula (A), ring A, ring B, and ring C each independently represent an aryl ring or a hetero aryl ring, Y1 is B, and X1 and X2 each independently represent O or N—R wherein at least one of X1 and X2 is N—R.Type: GrantFiled: March 2, 2016Date of Patent: June 23, 2020Assignees: JNC Corporation, Kwansei Gakuin Educational FoundationInventors: Takuji Hatakeyama, Yasuhiro Kondo, Keiichi Nakamoto, Motoki Yanai
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Publication number: 20200190116Abstract: The objective of the invention is to provide a polycyclic aromatic compound in which solubility to a solvent, film formability, wet coatability, thermal stability, and in-plane orientation are improved. This objective is achieved by a light emission layer-forming composition comprising: as a first component, at least one type of dopant material selected from the group consisting of polycyclic aromatic compounds represented by general formula (A) and polycyclic aromatic oligomer compounds including a plurality of structures represented by general formula (A); as a second component, a specific low-molecular-weight host material; and, as a third component, at least one type of organic solvent. In formula (A), ring A, ring B, and ring C each independently represent an aryl ring or a hetero aryl ring, Y1 is B, and X1 and X2 each independently represent O or N—R wherein at least one of X1 and X2 is N—R.Type: ApplicationFiled: February 27, 2020Publication date: June 18, 2020Applicants: Kwansei Gakuin Educational Foundation, JNC CorporationInventors: Takuji Hatakeyama, Yasuhiro Kondo, Keiichi Nakamoto, Motoki Yanai
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Publication number: 20200190115Abstract: The present invention provides a novel polycyclic aromatic compound having a plurality of aromatic rings linked by a boron atom, a nitrogen atom, and the like, and thus increases the number of alternatives of a material for an organic electroluminescent (EL) device. Furthermore, the present invention provides an excellent organic EL device by using a novel polycyclic aromatic compound as a material for an organic EL device.Type: ApplicationFiled: May 15, 2018Publication date: June 18, 2020Applicants: Kwansei Gakuin Educational Foundation, JNC CorporationInventors: Takuji Hatakeyama, Yasuhiro KONDO, Yasuyuki SASADA, Motoki YANAI, Toshiaki IKUTA
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Patent number: 10686141Abstract: By providing a novel polycyclic aromatic compound in which a plurality of aromatic rings are linked via a boron atom, a nitrogen 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: September 6, 2017Date of Patent: June 16, 2020Assignees: Kwansei Gakuin Educational Foundation, JNC CorporationInventors: Takuji Hatakeyama, Soichiro Nakatsuka, Hajime Gotoh, Yasuyuki Sasada, Motoki Yanai, Toshiaki Ikuta
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Patent number: 10680186Abstract: The present invention addresses the problem of providing a polycyclic aromatic compound which has improved solubility in solvents, film formability, wet coatability and in-plane orientation. The above-described problem is solved by a composition for forming a light emitting layer, which contains, as a first component, at least one compound selected from the group consisting of compounds represented by general formula (A-1) and compounds represented by general formula (A-2), as a second component, at least one compound that has a triplet energy (ET) of 1.8-3.0 eV, and as a third component, at least one organic solvent. In the formulae, R represents a hydrogen atom, an aryl group, a heteroaryl group, a diarylamino group, a diheteroarylamino group or an aryl heteroarylamino group.Type: GrantFiled: March 2, 2016Date of Patent: June 9, 2020Assignees: Kwansei Gakuin Educational Foundation, JNC CorporationInventors: Takuji Hatakeyama, Yasuhiro Kondo, Keiichi Nakamoto, Motoki Yanai
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Publication number: 20200176680Abstract: Provided is an organic electroluminescent element including a light emitting layer containing, as a dopant, at least two compounds selected from a compound group consisting of a polycyclic aromatic compound represented by the following general formula (1) and a multimer thereof: wherein the symbols are defined in the specification.Type: ApplicationFiled: June 12, 2018Publication date: June 4, 2020Applicants: KWANSEI GAKUIN EDUCATIONAL FOUNDATION, JNC CORPORATIONInventors: Takuji HATAKEYAMA, Katsuya MASUDA, Motoki YANAI
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Publication number: 20190256538Abstract: By providing a novel polycyclic aromatic compound in which a plurality of aromatic rings is linked via a nitrogen atom, a boron 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: August 25, 2017Publication date: August 22, 2019Applicants: Kwansei Gakuin Educational Foundation, JNC CorporationInventors: Takuji HATAKEYAMA, Kohei MATSUI, Yusuke WATANABE, Daisuke BABA, Yasuyuki SASADA, Motoki YANAI, Toshiaki IKUTA