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Iwakuma Toshihiro, Matsuura Masahide, Nakano Yuki, Ikeda Hidetsugu: Material for organic electroluminescence element, and organic electroluminescence element using the material. Idemitsu Kosan Co, March 11, 2009: EP2034538-A1 (219 worldwide citation)

An organic electroluminescence device comprising a compound having a specific structure having a heteroatom and an organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer which comprises at least one layer comprising at least a light emitting layer and i ...


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Matsuura Masahide, Hosokawa Chishio, Iwakuma Toshihiro, Yamamichi Keiko: (Ja) 有機エレクトロルミネッセンス素子, (En) Organic electroluminescent device. Idemitsu Kosan, Matsuura Masahide, Hosokawa Chishio, Iwakuma Toshihiro, Yamamichi Keiko, WATANABE Kihei, August 25, 2005: WO/2005/079118 (42 worldwide citation)

(EN) An organic EL device (100) comprising a plurality of light-emitting layers (15, 17) between cathodes (18, 19) and an anode (12) is characterized in that each of the light-emitting layers (15, 17) contains a host material having a triplet energy gap of not less than 2.52 eV and not more than 3.7 ...


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Nakano Yuki, Matsuura Masahide, Ikeda Hidetsugu, Iwakuma Toshihiro: (Ja) 有機エレクトロルミネッセンス素子用材料及びそれを用いた有機エレクトロルミネッセンス素子, (En) Organic electroluminescence element material and organic electroluminescence element using same. Idemitsu Kosan, Nakano Yuki, Matsuura Masahide, Ikeda Hidetsugu, Iwakuma Toshihiro, OHTANI Tamotsu, June 21, 2007: WO/2007/069569 (39 worldwide citation)

(EN) An organic electroluminescence element material composed of a compound having a specific structure is provided. An organic electroluminescence element wherein an organic thin film layer composed of one or a plurality of layers having at least a light emitting layer is sandwiched between a catho ...


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Yamamoto Hiroshi, Iwakuma Toshihiro, Matsuura Masahide: New quinoxaline derivative and organic electroluminescent element utilizing the same. Idemitsu Kosan, February 13, 2003: JP2003-040873 (37 worldwide citation)

PROBLEM TO BE SOLVED: To provide a new quinoxaline derivative by which brightness of organic electroluminescent elements and efficiency of luminescence thereof can be heightened and long life of these elements can be attained by improvement of deposition of electrodes and to provide an organic elect ...


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Nakano Yuki, Matsuura Masahide, Ikeda Hidetsugu, Iwakuma Toshihiro: Organic electroluminescence element material and organic electroluminescence element using same. Idemitsu Kosan Co, August 27, 2008: EP1962354-A1 (35 worldwide citation)

An organic electroluminescence element material composed of a compound having a specific structure is provided. An organic electroluminescence element wherein an organic thin film layer composed of one or a plurality of layers having at least a light emitting layer is sandwiched between a cathode an ...


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Matsuura Masahide, Hosokawa Chishio, Iwakuma Toshihiro, Yamamichi Keiko: Organic electroluminescent device. Idemitsu Kosan Co, November 2, 2006: EP1718122-A1 (32 worldwide citation)

An organic EL device 100 including a plurality of emitting layers (15) and (17) between a cathode (18) and (19) and an anode (12), each of the emitting layers (15) and (17) made of a host material having a triplet energy gap of 2.52 eV or more and 3.7 eV or less, and a dopant having a light emitting ...


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Nishimura Kazuki, Iwakuma Toshihiro, Fukuoka Kenichi, Hosokawa Chishio: Organic el element and solution containing organic el material. Idemitsu Kosan, Nishimura Kazuki, Iwakuma Toshihiro, Fukuoka Kenichi, Hosokawa Chishio, KINOSHITA 3rd floor Ogikubo TM building 26 13 Ogikubo 5 chome Suginami ku Tokyo 167 0051, May 28, 2009: WO/2009/066778 (22 worldwide citation)

Disclosed is an organic EL element (1) comprising an anode (3), a cathode (4) and an organic thin film layer (10) arranged between the anode (3) and the cathode (4). The organic thin film layer (10) has a phosphorescent layer (5) comprising a host and a phosphorescent dopant. The host comprises a fi ...


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Nishimura Kazuki, Iwakuma Toshihiro, Fukuoka Kenichi, Hosokawa Chishio, Endo Jun, Yabunouchi Nobuhiro, Yamamoto Hiroshi: Organic el element. Idemitsu Kosan, Nishimura Kazuki, Iwakuma Toshihiro, Fukuoka Kenichi, Hosokawa Chishio, Endo Jun, Yabunouchi Nobuhiro, Yamamoto Hiroshi, KINOSHITA 3rd floor Ogikubo TM building 26 13 Ogikubo 5 chome Suginami ku Tokyo 167 0051, May 28, 2009: WO/2009/066779 (21 worldwide citation)

Disclosed is an organic EL element comprising an anode, a cathode and an organic thin film layer arranged between the anode and the cathode. The organic thin film layer has a phosphorescent layer comprising a host and a phosphorescent dopant and an electron-transporting layer arranged on the cathode ...


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Iwakuma Toshihiro, Endo Jun, Numata Masaki, Fukuoka Kenichi: (Ja) 有機エレクトロルミネッセンス素子用材料及びそれを用いた有機エレクトロルミネッセンス素子, (En) Material for organic electroluminescence element, and organic electroluminescence element prepared by using the material. Idemitsu Kosan, Iwakuma Toshihiro, Endo Jun, Numata Masaki, Fukuoka Kenichi, OHTANI Tamotsu, January 15, 2009: WO/2009/008100 (20 worldwide citation)

(EN) Disclosed is a material for an organic electroluminescence element, which is intended to be used together with at least one phosphorescent metal complex. The material comprises a compound having a specific heterocyclic structure. The material can be used as a host material or a hole transportin ...