Patents by Inventor Qiu Xuepeng
Qiu Xuepeng 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: 8664394Abstract: A light-emitting element having excellent light-emitting properties and with which it is possible to emit blue light at a high luminance for a long period of time, and an iridium complex for realizing the same. The light-emitting element has an external quantum efficiency of at least 5% and a light emission maximum wavelength ? max of no more than 500 nm. Further, there is provided a light-emitting element including a light-emitting layer or a plurality of organic compound layers having the light-emitting layer, with at least one of the compound layers including at least one kind of a compound having a partial structure represented by the general formula K-0. In the general formula K-0, R1 to R7 each independently represents a hydrogen atom or a substituent, provided that if R2 is a fluorine atom, R3 is not a hydrogen atom.Type: GrantFiled: June 15, 2011Date of Patent: March 4, 2014Assignee: UDC Ireland LimitedInventors: Tatsuya Igarashi, Toshihiro Ise, Yousuke Miyashita, Hidetoshi Fujimura, Hisashi Okada, Masayuki Mishima, Qiu Xuepeng
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Publication number: 20110245502Abstract: A light-emitting element having excellent light-emitting properties and with which it is possible to emit blue light at a high luminance for a long period of time, and an iridium complex for realizing the same. The light-emitting element has an external quantum efficiency of at least 5% and a light emission maximum wavelength ? max of no more than 500 nm. Further, there is provided a light-emitting element including a light-emitting layer or a plurality of organic compound layers having the light-emitting layer, with at least one of the compound layers including at least one kind of a compound having a partial structure represented by the general formula K-0. In the general formula K-0, R1 to R7 each independently represents a hydrogen atom or a substituent, provided that if R2 is a fluorine atom, R3 is not a hydrogen atom.Type: ApplicationFiled: June 15, 2011Publication date: October 6, 2011Applicant: FUJIFILM CorporationInventors: Tatsuya IGARASHI, Toshihiro ISE, Yousuke MIYASHITA, Hidetoshi FUJIMURA, Hisashi OKADA, Masayuki MISHIMA, Qiu XUEPENG
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Patent number: 8022212Abstract: A light-emitting element having excellent light-emitting properties and with which it is possible to emit blue light at a high luminance for a long period of time, and an iridium complex for realizing the same. The light-emitting element has an external quantum efficiency of at least 5% and a light emission maximum wavelength ? max of no more than 500 nm. Further, there is provided a light-emitting element including a light-emitting layer or a plurality of organic compound layers having the light-emitting layer, with at least one of the compound layers including at least one kind of a compound having a partial structure represented by the general formula K-0. In the general formula K-0, R1 to R7 each independently represents a hydrogen atom or a substituent, provided that if R2 is a fluorine atom, R3 is not a hydrogen atom.Type: GrantFiled: November 1, 2007Date of Patent: September 20, 2011Assignee: FUJIFILM CorporationInventors: Tatsuya Igarashi, Toshihiro Ise, Yousuke Miyashita, Hidetoshi Fujimura, Hisashi Okada, Masayuki Mishima, Qiu Xuepeng
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Patent number: 7838131Abstract: The present invention relates to a light emitting element comprising at least a light emitting layer containing a light emitting material and a host material and having a light emission maximum wavelength of 500 nm or less wherein the minimum excitation triplet energy level of the host material is higher than the minimum excitation triplet energy level of the light emitting material.Type: GrantFiled: October 28, 2009Date of Patent: November 23, 2010Assignee: Fujifilm CorporationInventors: Toshihiro Ise, Tatsuya Igarashi, Yousuke Miyashita, Hidetoshi Fujimura, Masayuki Mishima, Hisashi Okada, Qiu Xuepeng
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Publication number: 20100044638Abstract: The present invention relates to a light emitting element comprising at least a light emitting layer containing a light emitting material and a host material and having a light emission maximum wavelength of 500 nm or less wherein the minimum excitation triplet energy level of the host material is higher than the minimum excitation triplet energy level of the light emitting material.Type: ApplicationFiled: October 28, 2009Publication date: February 25, 2010Applicant: FUJIFILM CORPORATIONInventors: Toshihiro ISE, Tatsuya Igarashi, Yousuke Miyashita, Hidetoshi Fujimura, Masayuki Mishima, Hisasi Okada, Qiu Xuepeng
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Patent number: 7632579Abstract: A light emitting element comprising at least a light emitting layer containing a light emitting material and a host material and having a light emission maximum wavelength of 500 nm or less wherein the minimum excitation triplet energy level of the host material is higher than the minimum excitation triplet energy level of the light emitting material.Type: GrantFiled: July 26, 2005Date of Patent: December 15, 2009Assignee: FUJIFILM CorporationInventors: Toshihiro Ise, Tatsuya Igarashi, Yousuke Miyashita, Hidetoshi Fujimura, Masayuki Mishima, Hisashi Okada, Qiu Xuepeng
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Publication number: 20080132701Abstract: A light-emitting element having excellent light-emitting properties and with which it is possible to emit blue light at a high luminance for a long period of time, and an iridium complex for realizing the same. The light-emitting element has an external quantum efficiency of at least 5% and a light emission maximum wavelength ? max of no more than 500 nm. Further, there is provided a light-emitting element including a light-emitting layer or a plurality of organic compound layers having the light-emitting layer, with at least one of the compound layers including at least one kind of a compound having a partial structure represented by the general formula K-0. In the general formula K-0, R1 to R7 each independently represents a hydrogen atom or a substituent, provided that if R2 is a fluorine atom, R3 is not a hydrogen atom.Type: ApplicationFiled: November 1, 2007Publication date: June 5, 2008Inventors: Tatsuya Igarashi, Toshihiro Ise, Yousuke Miyashita, Hidetoshi Fujimura, Hisashi Okada, Masayuki Mishima, Qiu Xuepeng
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Patent number: 7306856Abstract: A light-emitting element having excellent light-emitting properties and with which it is possible to emit blue light at a high luminance for a long period of time, and an iridium complex for realizing the same. The light-emitting element has an external quantum efficiency of at least 5% and a light emission maximum wavelength ?max of no more than 500 nm. Further, there is provided a light-emitting element including a light-emitting layer or a plurality of organic compound layers having the light-emitting layer, with at least one of the compound layers including at least one kind of a compound having a partial structure represented by the general formula K-0.Type: GrantFiled: July 17, 2001Date of Patent: December 11, 2007Assignee: FUJIFILM CorporationInventors: Tatsuya Igarashi, Toshihiro Ise, Yousuke Miyashita, Hidetoshi Fujimura, Hisashi Okada, Masayuki Mishima, Qiu Xuepeng
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Publication number: 20050260452Abstract: The present invention relates to a light emitting element comprising at least a light emitting layer containing a light emitting material and a host material and having a light emission maximum wavelength of 500 nm or less wherein the minimum excitation triplet energy level of the host material is higher than the minimum excitation triplet energy level of the light emitting material.Type: ApplicationFiled: July 26, 2005Publication date: November 24, 2005Inventors: Toshihiro Ise, Tatsuya Igarashi, Yousuke Miyashita, Hidetoshi Fujimura, Masayuki Mishima, Hisashi Okada, Qiu Xuepeng
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Patent number: 6962755Abstract: A light emitting element comprising at least a light emitting layer containing a light emitting material and a host material and having a light emission maximum wavelength of 500 nm or less wherein the minimum excitation triplet energy level of the host material is higher than the minimum excitation triplet energy level of the light emitting material.Type: GrantFiled: July 17, 2001Date of Patent: November 8, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshihiro Ise, Tatsuya Igarashi, Yousuke Miyashita, Hidetoshi Fujimura, Masayuki Mishima, Hisashi Okada, Qiu Xuepeng
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Publication number: 20020028329Abstract: The present invention relates to a light emitting element comprising at least a light emitting layer containing a light emitting material and a host material and having a light emission maximum wavelength of 500 nm or less wherein the minimum excitation triplet energy level of the host material is higher than the minimum excitation triplet energy level of the light emitting material.Type: ApplicationFiled: July 17, 2001Publication date: March 7, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Toshihiro Ise, Tatsuya Igarashi, Yousuke Miyashita, Hidetoshi Fujimura, Masayuki Mishima, Hisashi Okada, Qiu Xuepeng
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Publication number: 20020024293Abstract: A light-emitting element having excellent light-emitting properties and with which it is possible to emit blue light at a high luminance for a long period of time, and an iridium complex for realizing the same. The light-emitting element has an external quantum efficiency of at least 5% and a light emission maximum wavelength &lgr;max of no more than 500 nm. Further, there is provided a light-emitting element including a light-emitting layer or a plurality of organic compound layers having the light-emitting layer, with at least one of the compound layers including at least one kind of a compound having a partial structure represented by the general formula K-0. In the general formula K-0, R1 to R7 each independently represents a hydrogen atom or a substituent, provided that if R2 is a fluorine atom, R3 is not a hydrogen atom.Type: ApplicationFiled: July 17, 2001Publication date: February 28, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Tatsuya Igarashi, Toshihiro Ise, Yousuke Miyashita, Hidetoshi Fujimura, Hisashi Okada, Masayuki Mishima, Qiu Xuepeng