Patents by Inventor Masayo Fugono
Masayo Fugono 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: 20140361285Abstract: The present invention provides an organic electroluminescent device exhibiting a long life, a high luminance, and a high efficiency. An organic electroluminescent device comprising on a substrate an anode, a hole transport layer, an organic light-emitting layer, and a cathode, wherein the organic light-emitting layer contains an organic compound having a pyridine ring, a pyrazine ring, or a triazine ring as a partial structure and the hole transport layer contains a monoamine compound represented by the following formula (I): wherein R1 to R9 represent a hydrogen atom, an aryl group, or an alkyl group; R1 to R9 may be the same or different from each other; and R1 to R9 may further have an aryl group or an alkyl group as a substituent in the case where R1 to R9 are an aryl group or an alkyl group.Type: ApplicationFiled: August 26, 2014Publication date: December 11, 2014Applicant: Mitsubishi Chemical CorporationInventors: Masayoshi YABE, Masayo Fugono, Koichiro Iida, Masako Takeuchi, Tomoyuki Ogata
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Patent number: 8877355Abstract: The present invention provides an organic electroluminescent device exhibiting a long life, a high luminance, and a high efficiency. An organic electroluminescent device comprising on a substrate an anode, a hole transport layer, an organic light-emitting layer, and a cathode, wherein the organic light-emitting layer contains an organic compound having a pyridine ring, a pyrazine ring, or a triazine ring as a partial structure and the hole transport layer contains a monoamine compound represented by the following formula (I): wherein R1 to R9 represent a hydrogen atom, an aryl group, or an alkyl group; R1 to R9 may be the same or different from each other; and R1 to R9 may further have an aryl group or an alkyl group as a substituent in the case where R1 to R9 are an aryl group or an alkyl group.Type: GrantFiled: March 15, 2013Date of Patent: November 4, 2014Assignee: Mitsubishi Chemical CorporationInventors: Masayoshi Yabe, Masayo Fugono, Koichiro Iida, Masako Takeuchi, Tomoyuki Ogata
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Patent number: 8427046Abstract: The present invention provides an organic electroluminescent device exhibiting a long life, a high luminance, and a high efficiency. An organic electroluminescent device comprising on a substrate an anode, a hole transport layer, an organic light-emitting layer, and a cathode, wherein the organic light-emitting layer contains an organic compound having a pyridine ring, a pyrazine ring, or a triazine ring as a partial structure and the hole transport layer contains a monoamine compound represented by the following formula (I): wherein R1 to R9 represent a hydrogen atom, an aryl group, or an alkyl group; R1 to R9 may be the same or different from each other; and R1 to R9 may further have an aryl group or an alkyl group as a substituent in the case where R1 to R9 are an aryl group or an alkyl group.Type: GrantFiled: May 16, 2006Date of Patent: April 23, 2013Assignee: Mitsubishi Chemical CorporationInventors: Masayoshi Yabe, Masayo Fugono, Koichiro Iida, Masako Takeuchi, Tomoyuki Ogata
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Patent number: 8178215Abstract: An organic compound and a charge-transporting material which are excellent in both a hole-transporting property and an electron-transporting property and have excellent electrical oxidation/reduction durability and a high triplet excitation level are provided, and an organic electroluminescent device which uses this organic compound and has high luminous efficiency and high driving stability and long lifetime is provided, wherein the organic compound has two or more partial structures represented by the following Formula (I): wherein Cz denotes a carbazolyl group; Z is as defined; and Q denotes a direct link connected to G present in a moiety represented by the following Formula (II): wherein B1 ring is a six-membered aromatic heterocycle containing n N atoms as a hetero atom; n is an integer of 1 to 3; G is as defined; and m is an integer of 3 to 5.Type: GrantFiled: December 5, 2005Date of Patent: May 15, 2012Assignees: Pioneer Corporation, Mitsubishi Chemical CorporationInventors: Masayoshi Yabe, Hideki Sato, Masako Takeuchi, Masayo Fugono, Koichiro Iida
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Patent number: 7777043Abstract: An object of the invention is to provide a charge transporting material having an excellent heat resistance, excellent filming properties, an excellent charge transporting ability, and excellent light-emitting characteristics and, also, to provide an organic electroluminescent element providing a high luminance and a highly luminous efficiency and having a long life. The invention relates to a charge transporting material comprising a compound having within the molecule two or more pyridine rings substituted at 2-, 4- and 6-positions thereof, which rings do not substantially conjugate each other (provided that the 3- and 5-positions of the pyridine rings may be substituted) and an organic electroluminescent element using the charge transporting material.Type: GrantFiled: January 31, 2006Date of Patent: August 17, 2010Assignee: Mitsubishi Chemical CorporationInventors: Masayoshi Yabe, Hideki Sato, Masayo Fugono, Takeshi Shioya, Masako Takeuchi
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Publication number: 20090236973Abstract: An organic compound and a charge-transporting material which are excellent in both a hole-transporting property and an electron-transporting property and have excellent electrical oxidation/reduction durability and a high triplet excitation level are provided, and an organic electroluminescent device which uses this organic compound and has high luminous efficiency and high driving stability and long lifetime is provided.Type: ApplicationFiled: December 5, 2005Publication date: September 24, 2009Applicant: PIONEER CORPORATIONInventors: Masayoshi Yabe, Hideki Sato, Masako Takeuchi, Masayo Fugono, Koichiro Iida
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Publication number: 20090230846Abstract: The present invention provides an organic electroluminescent device exhibiting a long life, a high luminance, and a high efficiency. An organic electroluminescent device comprising on a substrate an anode, a hole transport layer, an organic light-emitting layer, and a cathode, wherein the organic light-emitting layer contains an organic compound having a pyridine ring, a pyrazine ring, or a triazine ring as a partial structure and the hole transport layer contains a monoamine compound represented by the following formula (I): wherein R1 to R9 represent a hydrogen atom, an aryl group, or an alkyl group; R1 to R9 may be the same or different from each other; and R1 to R9 may further have an aryl group or an alkyl group as a substituent in the case where R1 to R9 are an aryl group or an alkyl group.Type: ApplicationFiled: May 16, 2006Publication date: September 17, 2009Applicant: Mitsubishi Chemical CorporationInventors: Masayoshi Yabe, Masayo Fugono, Koichiro Iida, Masako Takeuchi, Tomoyuki Ogata
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Publication number: 20060186796Abstract: An object of the invention is to provide a charge transporting material having an excellent heat resistance, excellent filming properties, an excellent charge transporting ability, and excellent light-emitting characteristics and, also, to provide an organic electroluminescent element providing a high luminance and a highly luminous efficiency and having a long life. The invention relates to a charge transporting material comprising a compound having within the molecule two or more pyridine rings substituted at 2-, 4- and 6-positions thereof, which rings do not substantially conjugate each other (provided that the 3- and 5-positions of the pyridine rings may be substituted) and an organic electroluminescent element using the charge transporting material.Type: ApplicationFiled: January 31, 2006Publication date: August 24, 2006Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Masayoshi Yabe, Hideki Sato, Masayo Fugono, Takeshi Shioya, Masako Takeuchi
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Patent number: 6893743Abstract: An organic electroluminescent device is disclosed, comprising a substrate having thereon a light-emitting layer sandwiched by an anode and a cathode, wherein the light-emitting layer comprises at least: (1) a host material having electron-transporting or hole-transporting property, (2) Compound A capable of phosphorescence emission at room temperature, and (3) Compound B capable of phosphorescence emission or fluorescence emission at room temperature and having the maximum light emission wavelength longer than the maximum light emission wavelength of Compound A, and the maximum light emission wavelength of said device is attributable to said (3). The light emission attributable to (3) is intensified by (2) to elevate the light emission efficiency and by selecting a fluorescent compound as (3), the device can be prevented from aging deterioration of the luminance.Type: GrantFiled: October 4, 2001Date of Patent: May 17, 2005Assignee: Mitsubishi Chemical CorporationInventors: Hideki Sato, Yoshiharu Sato, Masayo Fugono
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Publication number: 20030218418Abstract: An organic electroluminescent device is disclosed, comprising a substrate having thereon a light-emitting layer sandwiched by an anode and a cathode, wherein the light-emitting layer comprises at least:Type: ApplicationFiled: October 4, 2001Publication date: November 27, 2003Applicant: Mitsubishi Chemical CorporationInventors: Hideki Sato, Yoshiharu Sato, Masayo Fugono
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Publication number: 20020125818Abstract: An organic electroluminescent device is disclosed, comprising a substrate having thereon a light-emitting layer sandwiched by an anode and a cathode, wherein the light-emitting layer comprises at least:Type: ApplicationFiled: October 4, 2001Publication date: September 12, 2002Applicant: Mitsubishi Chemical CorporationInventors: Hideki Sato, Yoshiharu Sato, Masayo Fugono