Patents by Inventor Shigeru Kusano
Shigeru Kusano 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: 12108582Abstract: An electronic device protection unit is provided. The electronic device protection unit includes a sensing part, a responding part, and an analysis and control part. The sensing part is configured to detect an incident ray which is electromagnetic wave or radiation with potential to cause destruction (damage), failure, or malfunction of an electronic device. The responding part is configured to be able to perform a plurality of behaviors to protect the electronic device. The analysis and control part is configured to control the behaviors of the responding part in response to a type of the incident ray detected by the sensing part.Type: GrantFiled: February 3, 2020Date of Patent: October 1, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Naohisa Anabuki, Masaki Kusano, Shigeru Ishii
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Patent number: 12089488Abstract: An organic electroluminescent device having a capping layer composed of material having a high refractive index, excelling in thin film stability and durability and having no absorption in the respective wavelength ranges of blue, green, and red is provided to improve device characteristics of the organic electroluminescent device, particularly to greatly improve light extraction efficiency. The organic electroluminescent device has at least an anode electrode, a hole transport layer, a light emitting layer, an electron transport layer, a cathode electrode, and the capping layer in this order, wherein the capping layer contains an arylamine compound (X) having a structure in which two triphenylamine structures are joined within a molecule via a single bond or a divalent group that does not contain a heteroatom.Type: GrantFiled: December 6, 2018Date of Patent: September 10, 2024Assignee: Hodogaya Chemical Co., Ltd.Inventors: Norimasa Yokoyama, Shuichi Hayashi, Shigeru Kusano
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Publication number: 20190115542Abstract: An organic electroluminescent device having a capping layer composed of material having a high refractive index, excelling in thin film stability and durability and having no absorption in the respective wavelength ranges of blue, green, and red is provided to improve device characteristics of the organic electroluminescent device, particularly to greatly improve light extraction efficiency. The organic electroluminescent device has at least an anode electrode, a hole transport layer, a light emitting layer, an electron transport layer, a cathode electrode, and the capping layer in this order, wherein the capping layer contains an arylamine compound (X) having a structure in which two triphenylamine structures are joined within a molecule via a single bond or a divalent group that does not contain a heteroatom.Type: ApplicationFiled: December 6, 2018Publication date: April 18, 2019Inventors: Norimasa Yokoyama, Shuichi Hayashi, Shigeru Kusano
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Patent number: 9985216Abstract: According to the present invention, there are provided an indenoindole derivative represented by the following general formula (1); and an organic electroluminescent element including a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the above compound is used as a constituent material for the at least one organic layer. The indenoindole derivative of the present invention provides an organic compound, which is excellent in hole injection/transport performance, has electron blocking capability, is highly stable in a thin film state, and excels in heat resistance, as a material for a high efficiency, high durability organic electroluminescent element. An organic electroluminescent element formed using this compound is highly efficient and highly durable.Type: GrantFiled: June 4, 2014Date of Patent: May 29, 2018Assignee: HODOGAYA CHEMICAL CO., LTD.Inventors: Makoto Nagaoka, Shigetaka Numazawa, Norimasa Yokoyama, Si In Kim, Shigeru Kusano
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Patent number: 9871210Abstract: Naphthotriazole derivatives represented by the following general formula (1), wherein, Ar1 is an aromatic hydrocarbon group or an aromatic heterocyclic group, and A is a group that contains an aromatic heterocyclic group. The compound features excellent electron injection/transporting capability, a high hole-blocking power and a high stability in the form of a thin film, and can be used as a material for producing highly efficient and highly durable organic electroluminescent devices.Type: GrantFiled: February 20, 2014Date of Patent: January 16, 2018Assignee: HODOGAYA CHEMICAL CO., LTD.Inventors: Makoto Nagaoka, Shigetaka Numazawa, Mari Toriya, Shingo Ozawa, Shigeru Kusano
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Patent number: 9842999Abstract: A Benzotriazole derivative represented by the following general formula (1), wherein, Ar1 is a monovalent aromatic hydrocarbon group or aromatic heterocyclic group, Ar2 is a hydrogen atom, a deuterium atom, or a monovalent aromatic hydrocarbon group or aromatic heterocyclic group, A is a divalent aromatic hydrocarbon group or aromatic heterocyclic group, B is a divalent condensed polycyclic aromatic hydrocarbon group or a single bond, and C is a monovalent aromatic heterocyclic group, and wherein if A is a phenylene group, B is a divalent condensed polycyclic aromatic hydrocarbon group or C is a monovalent aromatic heterocyclic group other than a pyridyl group.Type: GrantFiled: July 24, 2014Date of Patent: December 12, 2017Assignee: HODOGAYA CHEMICAL CO., LTD.Inventors: Makoto Nagaoka, Shigetaka Numazawa, Kanae Otsuka, Shigeru Kusano
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Patent number: 9837620Abstract: According to the present invention, there are provided a benzopyridoindole derivative represented by the following general formula (1); and an organic EL element including a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the above derivative is used as a constituent material for the at least one organic layer. The benzopyridoindole derivative of the present invention is excellent in electron injection/transport performance, has hole blocking capability, is highly stable in a thin film state, and excels in various characteristics. Thus, it is useful as a material for an organic EL element with a high efficiency, a low driving voltage, and high durability.Type: GrantFiled: September 1, 2014Date of Patent: December 5, 2017Assignee: HODOGAYA CHEMICAL CO., LTD.Inventors: Makoto Nagaoka, Kouki Kase, Shigeru Kusano, Teruaki Koizumi
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Patent number: 9755152Abstract: There is provided an organic compound having excellent characteristics, including excellent electron-injecting/transporting performance, hole blocking ability, and high stability in the thin-film state, for use as material of an organic electroluminescent device having high efficiency and high durability. There is also provided a high-efficient and high-durable organic electroluminescent device using the compound. The compound is represented by general formula (1) having a substituted anthracene ring structure and a pyridoindole ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and the compound is used as a constituent material of at least one organic layer.Type: GrantFiled: November 25, 2014Date of Patent: September 5, 2017Assignee: Hodogaya Chemical Co., Ltd.Inventors: Norimasa Yokoyama, Shuichi Hayashi, Naoaki Kabasawa, Daizou Kanda, Shigeru Kusano
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Patent number: 9732036Abstract: [Problem]An organic compound of excellent characteristics is provided that exhibits excellent hole-injecting/transporting performance with electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency, the organic compound being provided as material for an organic electroluminescent device having high efficiency and high durability. The invention also provides a high-efficient, high-durable organic electroluminescent device using the compound. [Means for Resolution] The compound is of the following general formula having a carbazole ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and the compound is used as a constituent material of at least one organic layer.Type: GrantFiled: August 25, 2010Date of Patent: August 15, 2017Assignee: Hodogaya Chemical Co., Ltd.Inventors: Norimasa Yokoyama, Makoto Nagaoka, Kazunori Togashi, Shigeru Kusano
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Patent number: 9525140Abstract: A problem of the invention is to provide an organic EL device having a high efficiency, a low driving voltage and a long life, by combining various materials for organic EL device, which are excellent in an injection or transportation performance of holes or electrons, and in stability and durability in a thin film, so as to enable the respective materials to effectively reveal their characteristics. The invention relates to an organic electroluminescent device including at least an anode electrode, a hole-injecting layer, a hole-transporting layer, an emitting layer, an electron-transporting layer and a cathode electrode in this order, in which the hole-injecting layer contains an arylamine compound having, in its molecule, a structure in which three or more triphenylamine structures are connected through a single bond or a hetero atom-free divalent group; and the hole-transporting layer contains an arylamine compound having two triphenylamine structures in its molecule.Type: GrantFiled: October 2, 2013Date of Patent: December 20, 2016Assignee: HODOGAYA CHEMICAL CO., LTD.Inventors: Norimasa Yokoyama, Shigeru Kusano, Shuichi Hayashi
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Publication number: 20160351823Abstract: According to the present invention, there are provided a benzofuroindole derivative represented by the following general formula (1); and an organic EL device comprising a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the above derivative is used as a constituent material for the at least one organic layer. The benzofuroindole derivative of the present invention is useful as a constituent material for a hole injection layer, a hole transport layer, an electron blocking layer or a luminous layer of an organic EL device. It has excellent electron blocking capability, is stable in a thin film state, and excels in heat resistance. Thus, the organic EL device of the present invention, prepared using such a benzofuroindole derivative, is high in luminous efficiency and power efficiency, thereby lowering the practical driving voltage of the device. The device can also lower light emission starting voltage, and improve durability.Type: ApplicationFiled: February 12, 2015Publication date: December 1, 2016Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Makoto NAGAOKA, Kouki KASE, Keigo NAITO, Kanae OTSUKA, Shigeru KUSANO
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Patent number: 9444055Abstract: An organic electroluminescent device comprising, between an anode and a cathode, a hole-transporting layer, a luminous layer and an electron-transporting layer, wherein the hole-transporting layer contains an arylamine compound (X) having a molecular structure to which three or more triphenylamine skeletons are singly bonded or bonded through a divalent hydrocarbon group and an arylamine compound (Y) having a molecular structure to which two triphenylamine skeletons are singly bonded or bonded through the divalent hydrocarbon group. The device excels in hole and electron injection/transport property, stability and durability in the form of thin films, and is highly efficient, becomes luminous on a low driving voltage, and has a long life.Type: GrantFiled: February 24, 2012Date of Patent: September 13, 2016Assignee: HODOGAYA CHEMICAL CO., LTD.Inventors: Norimasa Yokoyama, Shuichi Hayashi, Eiji Takahashi, Shigeru Kusano
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Publication number: 20160254458Abstract: According to the present invention, there are provided a benzopyridoindole derivative represented by the following general formula (1); and an organic EL element including a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the above derivative is used as a constituent material for the at least one organic layer. The benzopyridoindole derivative of the present invention is excellent in electron injection/transport performance, has hole blocking capability, is highly stable in a thin film state, and excels in various characteristics. Thus, it is useful as a material for an organic EL element with a high efficiency, a low driving voltage, and high durability.Type: ApplicationFiled: September 1, 2014Publication date: September 1, 2016Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Makoto NAGAOKA, Kouki KASE, Shigeru KUSANO, Teruaki KOIZUMI
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Publication number: 20160164001Abstract: A Benzotriazole derivative represented by the following general formula (1), wherein, Ar1 is a monovalent aromatic hydrocarbon group or aromatic heterocyclic group, Ar2 is a hydrogen atom, a deuterium atom, or a monovalent aromatic hydrocarbon group or aromatic heterocyclic group, A is a divalent aromatic hydrocarbon group or aromatic heterocyclic group, B is a divalent condensed polycyclic aromatic hydrocarbon group or a single bond, and C is a monovalent aromatic heterocyclic group, and wherein if A is a phenylene group, B is a divalent condensed polycyclic aromatic hydrocarbon group or C is a monovalent aromatic heterocyclic group other than a pyridyl group.Type: ApplicationFiled: July 24, 2014Publication date: June 9, 2016Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Makoto NAGAOKA, Shigetaka NUMAZAWA, Kanae OTSUKA, Shigeru KUSANO
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Publication number: 20160126468Abstract: According to the present invention, there are provided an indenoindole derivative represented by the following general formula (1); and an organic electroluminescent element including a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the above compound is used as a constituent material for the at least one organic layer. The indenoindole derivative of the present invention provides an organic compound, which is excellent in hole injection/transport performance, has electron blocking capability, is highly stable in a thin film state, and excels in heat resistance, as a material for a high efficiency, high durability organic electroluminescent element. An organic electroluminescent element formed using this compound is highly efficient and highly durable.Type: ApplicationFiled: June 4, 2014Publication date: May 5, 2016Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Makoto NAGAOKA, Shigetaka NUMAZAWA, Norimasa YOKOYAMA, Si In KIM, Shigeru KUSANO
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Patent number: 9306174Abstract: A high-efficiency, high-durability organic electroluminescent device, particularly a phosphorescent organic electroluminescent device is provided by using an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has high triplet exciton confining capability with an electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency. The organic electroluminescent device includes a pair of electrodes, and a plurality of organic layers sandwiched between the pair of electrodes and including a light emitting layer and an electron blocking layer, wherein a compound of the following general formula (1) having a carbazole ring structure is used as a constituent material of the electron blocking layer and the light emitting layer.Type: GrantFiled: October 22, 2010Date of Patent: April 5, 2016Assignee: Hodogaya Chemical Co., Ltd.Inventors: Norimasa Yokoyama, Makoto Nagaoka, Kazunori Togashi, Shigeru Kusano, Eiji Takahashi
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Patent number: 9306175Abstract: A high-efficiency, high-durability organic electroluminescent device, particularly a phosphorescent organic electroluminescent device is provided by using an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has high triplet exciton confining capability with an electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency. The organic electroluminescent device includes a pair of electrodes, and a plurality of organic layers sandwiched between the pair of electrodes and including a phosphorescent light-emitting material-containing light emitting layer and a hole transport layer, wherein a compound of the following general formula (1) having a carbazole ring structure is used as a constituent material of the hole transport layer.Type: GrantFiled: October 22, 2010Date of Patent: April 5, 2016Assignee: Hodogaya Chemical Co., Ltd.Inventors: Norimasa Yokoyama, Makoto Nagaoka, Kazunori Togashi, Shigeru Kusano, Eiji Takahashi
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Publication number: 20160005982Abstract: Naphthotriazole derivatives represented by the following general formula (1), wherein, Ar1 is an aromatic hydrocarbon group or an aromatic heterocyclic group, and A is a group that contains an aromatic heterocyclic group. The compound features excellent electron injection/transporting capability, a high hole-blocking power and a high stability in the form of a thin film, and can be used as a material for producing highly efficient and highly durable organic electroluminescent devices.Type: ApplicationFiled: February 20, 2014Publication date: January 7, 2016Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Makoto NAGAOKA, Shigetaka NUMAZAWA, Mari TORIYA, Shingo OZAWA, Shigeru KUSANO
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Patent number: 9196839Abstract: There is provided an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has an electron blocking ability and a highly stable thin-film state with excellent heat resistance. The compound of the present invention is an arylamine compound having a triphenylamine structure. The arylamine compound is used as a constituent material of at least one organic layer in an organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes.Type: GrantFiled: January 25, 2011Date of Patent: November 24, 2015Assignee: Hodogaya Chemical Co., Ltd.Inventors: Norimasa Yokoyama, Makoto Nagaoka, Kouki Kase, Shingo Ozawa, Shigeru Kusano
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Publication number: 20150155496Abstract: There is provided an organic compound having excellent characteristics, including excellent electron-injecting/transporting performance, hole blocking ability, and high stability in the thin-film state, for use as material of an organic electroluminescent device having high efficiency and high durability. There is also provided a high-efficient and high-durable organic electroluminescent device using the compound. The compound is represented by general formula (1) having a substituted anthracene ring structure and a pyridoindole ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and the compound is used as a constituent material of at least one organic layer.Type: ApplicationFiled: November 25, 2014Publication date: June 4, 2015Inventors: Norimasa Yokoyama, Shuichi Hayashi, Naoaki Kabasawa, Daizou Kanda, Shigeru Kusano