Patents by Inventor Hiroaki Iino
Hiroaki Iino 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: 12041801Abstract: An organic material having at least one aromatic conjugated ?-electron system is selected. The purity of the organic material is improved by purification, and a conduction mechanism of the organic material is confirmed by a time-of-flight method, whereby a liquid phase of the organic material is usable as an organic semiconductor. A method that enables the usage of a liquid phase of an organic material as an organic semiconductor is provided. The method involves confirming the electronic conduction of the organic material having at least one aromatic conjugated ?-electron system by evaluation of a charge transport property using a time-of-flight method, and by evaluation of a dilution effect caused by addition of a diluent.Type: GrantFiled: December 28, 2020Date of Patent: July 16, 2024Assignee: Japan Science and Technology AgencyInventors: Jun-Ichi Hanna, Keiji Tokunaga, Hiroaki Iino
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Publication number: 20240090243Abstract: An organic semiconductor thin film including a liquid crystalline organic semiconductor, in which Qp and Qt to be measured using a predetermined measurement method satisfy a predetermined requirement (1) and a rocking scan pattern has a ratio Ipeak/Ibas, that is a ratio of Ipeak which is a peak intensity of a maximum peak with respect to Ibas which is a base line value, of less than 10: 0.06?Qp/Qt?0.5 . . . (1).Type: ApplicationFiled: November 16, 2023Publication date: March 14, 2024Applicants: TOKYO INSTITUTE OF TECHNOLOGY, NIKON CORPORATIONInventors: Jun-ichi HANNA, Hao WU, Hiroaki IINO
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Publication number: 20210119165Abstract: An organic material having at least one aromatic conjugated ?-electron system is selected. The purity of the organic material is improved by purification, and a conduction mechanism of the organic material is confirmed by a time-of-flight method, whereby a liquid phase of the organic material is usable as an organic semiconductor. A method that enables the usage of a liquid phase of an organic material as an organic semiconductor is provided. The method involves confirming the electronic conduction of the organic material having at least one aromatic conjugated ?-electron system by evaluation of a charge transport property using a time-of-flight method, and by evaluation of a dilution effect caused by addition of a diluent.Type: ApplicationFiled: December 28, 2020Publication date: April 22, 2021Applicant: Japan Science and Technology AgencyInventors: Jun-Ichi Hanna, Keiji Tokunaga, Hiroaki Iino
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Patent number: 10937964Abstract: The purpose of the present invention is to provide an organic semiconductor material having liquid crystallinity and high electron mobility. The present invention is an organic semiconductor material having at least a charge-transporting molecular unit (A) having a structure of an aromatic fused ring system and a cyclic structural unit (B) bonded to the aforementioned unit via a single bond, wherein the unit (A) and/or the unit (B) has a side chain composed of a unit (C), and wherein the organic semiconductor material exhibits a liquid crystal phase that is different from an N-phase, an SmA-phase or an SmC-phase.Type: GrantFiled: July 6, 2018Date of Patent: March 2, 2021Assignees: Tokyo Institute of Technology, DIC CorporationInventors: Junichi Hanna, Takeo Kobori, Takayuki Usui, Yukiko Takayashiki, Hiroaki Iino, Akira Oono
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Publication number: 20190044082Abstract: An organic material having at least one aromatic conjugated ?-electron system is selected. The purity of the organic material is improved by purification, and a conduction mechanism of the organic material is confirmed by a time-of-flight method, whereby a liquid phase of the organic material is usable as an organic semiconductor. A method that enables the usage of a liquid phase of an organic material as an organic semiconductor is provided. The method involves confirming the electronic conduction of the organic material having at least one aromatic conjugated ?-electron system by evaluation of a charge transport property using a time-of-flight method, and by evaluation of a dilution effect caused by addition of a diluent.Type: ApplicationFiled: October 9, 2018Publication date: February 7, 2019Inventors: Jun-Ichi HANNA, Keiji TOKUNAGA, Hiroaki IINO
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Patent number: 10158087Abstract: The present invention provides an organic thin film and an organic transistor having high performance stability and mobility. Specifically, there are provided an organic thin film including a compound containing a charge transporting molecular unit A having a structure of an aromatic fused ring system and a unit B serving as a side chain, the compound having a bilayer structure; an organic semiconductor device including the organic thin film; and an organic transistor including the organic thin film used as an organic semiconductor layer.Type: GrantFiled: March 6, 2014Date of Patent: December 18, 2018Assignee: DIC CORPORATION (TOKYO)Inventors: Junichi Hanna, Hiroaki Iino, Yasuyuki Watanabe, Junichiro Koike, Hiroshi Maki, Yutaka Tachikawa, Atsuhisa Miyawaki, Yoshinobu Sakurai
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Publication number: 20180351106Abstract: The purpose of the present invention is to provide an organic semiconductor material having liquid crystallinity and high electron mobility. The present invention is an organic semiconductor material having at least a charge-transporting molecular unit (A) having a structure of an aromatic fused ring system and a cyclic structural unit (B) bonded to the aforementioned unit via a single bond, wherein the unit (A) and/or the unit (B) has a side chain composed of a unit (C), and wherein the organic semiconductor material exhibits a liquid crystal phase that is different from an N-phase, an SmA-phase or an SmC-phase.Type: ApplicationFiled: July 6, 2018Publication date: December 6, 2018Applicants: Tokyo Institute of Technology, DIC CorporationInventors: Junichi Hanna, Takeo Kobori, Takayuki Usui, Yukiko Takayashiki, Hiroaki Iino, Akira Oono
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Patent number: 10056557Abstract: The purpose of the present invention is to provide an organic semiconductor material having liquid crystallinity and high electron mobility. The present invention is an organic semiconductor material having at least a charge-transporting molecular unit (A) having a structure of an aromatic fused ring system and a cyclic structural unit (B) bonded to the aforementioned unit via a single bond, wherein the unit (A) and/or the unit (B) has a side chain composed of a unit (C), and wherein the organic semiconductor material exhibits a liquid crystal phase that is different from an N-phase, an SmA-phase or an SmC-phase.Type: GrantFiled: March 9, 2012Date of Patent: August 21, 2018Assignees: Tokyo Institute of Technology, DIC CorporationInventors: Junichi Hanna, Takeo Kobori, Takayuki Usui, Yukiko Takayashiki, Hiroaki Iino, Akira Oono
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Publication number: 20140081028Abstract: The purpose of the present invention is to provide an organic semiconductor material having liquid crystallinity and high electron mobility. The present invention is an organic semiconductor material having at least a charge-transporting molecular unit (A) having a structure of an aromatic fused ring system and a cyclic structural unit (B) bonded to the aforementioned unit via a single bond, wherein the unit (A) and/or the unit (B) has a side chain composed of a unit (C), and wherein the organic semiconductor material exhibits a liquid crystal phase that is different from an N-phase, an SmA-phase or an SmC-phase.Type: ApplicationFiled: March 9, 2012Publication date: March 20, 2014Inventors: Junichi Hanna, Takeo Kobori, Takayuki Usui, Yukiko Takayashiki, Hiroaki Iino, Akira Oono
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Publication number: 20120175604Abstract: An organic material having at least one aromatic conjugated ?-electron system is selected. The purity of the organic material is improved by purification, and a conduction mechanism of the organic material is confirmed by a time-of-flight method, whereby a liquid phase of the organic material is usable as an organic semiconductor. A method that enables the usage of a liquid phase of an organic material as an organic semiconductor is provided. The method involves confirming the electronic conduction of the organic material having at least one aromatic conjugated ?-electron system by evaluation of a charge transport property using a time-of-flight method, and by evaluation of a dilution effect caused by addition of a diluent.Type: ApplicationFiled: September 15, 2010Publication date: July 12, 2012Inventors: Jun-ichi Hanna, Keiji Tokunaga, Hiroaki Iino
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Patent number: 7709830Abstract: An organic semiconductor device Including an organic semiconductor layer in a crystallized crystal state is disclosed. The organic semiconductor layer is formed from an organic semiconductor material including a liquid crystal molecule. The semiconductor material has properties capable of exhibiting a supercooled state during a phase transition process, in which a phase having no periodic regularity is capable of being transferred into a phase having periodic regularity at a location of a center of gravity in between the liquid crystal molecules. The phase having no periodic regularity at a location of a center of gravity In between the liquid crystal molecules is a nematic liquid crystal phase and the phase having periodic regularity at a location of a center of gravity in between the liquid crystal molecules is a crystal phase.Type: GrantFiled: March 29, 2005Date of Patent: May 4, 2010Assignee: Dai Nippon Printing Co., Ltd.Inventors: Junichi Hanna, Hiroaki Iino, Hiroki Maeda
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Patent number: 7259390Abstract: There is provided a liquid crystalline material, suitable for use as an organic semiconductor material, in which, even when the charge transport distance is long, the charge transport capability is satisfactory, the charge mobility is high, and the dependence of the charge transport properties upon field strength is small. The organic semiconductor material having rodlike low-molecular weight liquid crystallinity comprises: a core structure comprising L 6 ? electron rings, M 8 ? electron rings, N 10 ? electron rings, O 12 ? electron rings, P 14 ? electron rings, Q 16 ? electron rings, R 18 ? electron rings, S 20 ? electron rings, T 22 ? electron rings, U 24 ? electron rings, and V 26 ? electron rings, wherein L, M, N, O, P, Q, R, S, T, U, and V are each an integer of 0 (zero) to 6 and L+M+N+O+P+Q+R+S+T+U+V=1 to 6; and a terminal structure attached to at least one end of the core structure, the terminal structure being capable of developing liquid crystallinity.Type: GrantFiled: February 26, 2004Date of Patent: August 21, 2007Assignee: Dai Nippon Printing Co., Ltd.Inventors: Jun-Ichi Hanna, Hiroaki Iino, Hiroki Maeda
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Patent number: 7135702Abstract: The main object is to provide a manufacturing method of organic semiconductor, an organic semiconductor device structure manufactured by the manufacturing method and an organic semiconductor device, those having uniform and high carrier transport property over a relatively large area.Type: GrantFiled: March 29, 2005Date of Patent: November 14, 2006Assignee: Dai Nippon Printing Co., Ltd.Inventors: Junichi Hanna, Hiroaki Iino, Hiroki Maeda
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Publication number: 20060113526Abstract: A manufacturing method of an organic semiconductor device wherein an organic semiconductor layer being, a structural component of an organic semiconductor device is formed continuously with uniform performance over a sufficiently large area.Type: ApplicationFiled: March 29, 2005Publication date: June 1, 2006Inventors: Junichi Hanna, Hiroaki Iino, Hiroki Maeda
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Publication number: 20060060840Abstract: The main object is to provide a manufacturing method of organic semiconductor, an organic semiconductor device structure manufactured by the manufacturing method and an organic semiconductor device, those having uniform and high carrier transport property over a relatively large area.Type: ApplicationFiled: March 29, 2005Publication date: March 23, 2006Inventors: Junichi Hanna, Hiroaki Iino, Hiroki Maeda
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Publication number: 20040245497Abstract: There is provided a liquid crystalline material, suitable for use as an organic semiconductor material, in which, even when the charge transport distance is long, the charge transport capability is satisfactory, the charge mobility is high, and the dependence of the charge transport properties upon field strength is small.Type: ApplicationFiled: February 26, 2004Publication date: December 9, 2004Inventors: Jun-Ichi Hanna, Hiroaki Iino, Hiroki Maeda