Patents by Inventor Junichiro Koike
Junichiro Koike 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: 20240128018Abstract: A high-frequency coil component includes a sealing portion containing a resin and a plurality of hollow particles, and a coil portion composed of a wound conductive wire. The coil portion is sealed in the sealing portion. The resin includes a low-dielectric resin having a relative permittivity ?r1 of 2.00 or more and less than 3.00 at 23±2° C. A mass of the resin is represented by Mr. A total mass of the plurality of hollow particles is represented by Mp. Mr/(Mr+Mp) is 25% or more and 85% or less.Type: ApplicationFiled: October 11, 2023Publication date: April 18, 2024Applicant: TDK CORPORATIONInventors: Shigeki YANAGIDA, Masashi GOTOH, Shintarou KOIKE, Junichiro URABE
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Publication number: 20240087798Abstract: A coil component includes a coil configured of a winding, an exterior body provided to cover the coil, and a terminal part configured to be continuous with the winding. A proximal end portion of the terminal part is buried in the exterior body. A distal end portion ahead of the proximal end portion is bent from the proximal end portion and located outside a mounting surface of the exterior body along the mounting surface.Type: ApplicationFiled: April 20, 2023Publication date: March 14, 2024Applicant: TDK CORPORATIONInventors: Junichiro URABE, Toshinori MATSUURA, Hajime KATO, Shintarou KOIKE, Kazushige TOHTA, Takuto KAZAMA, Masashi GOTOH
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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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Patent number: 9951275Abstract: A liquid crystal display device which prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and which overcomes problems of defective display such as voids, uneven alignment, and screen burn-in. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and reduces defective display such as screen burn-in; hence, such a liquid crystal display device is particularly useful as liquid crystal display devices of a VA mode and PSVA mode which involve active matrix driving and can be applied to the liquid crystal display devices of liquid crystal TV sets, monitors, mobile phones, and smartphones.Type: GrantFiled: March 12, 2014Date of Patent: April 24, 2018Assignee: DIC CORPORATIONInventors: Shinji Ogawa, Yoshinori Iwashita, Junichiro Koike, Hiroshi Maki, Masami Shishikura, Ryosuke Asami
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Patent number: 9810938Abstract: A liquid crystal display device that prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and that resolves the problems of display defects, such as white streaks, variations in alignment, and image sticking. The liquid crystal display has features of preventing a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and suppressing display defects such as image sticking. Therefore, the liquid crystal display device is particularly useful for active matrix driving liquid crystal display devices with an IPS mode or an FFS mode and can be applied to liquid crystal display devices of, for example, liquid crystal televisions, monitors, cellular phones, and smart phones.Type: GrantFiled: November 29, 2013Date of Patent: November 7, 2017Assignee: DIC CORPORATIONInventors: Takeshi Kuriyama, Jouji Kawamura, Hiroshi Maki, Junichiro Koike, Masami Shishikura, Ryosuke Asami
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Patent number: 9464231Abstract: There is provided a liquid crystal display device which prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and which overcomes problems of defective display such as voids, uneven alignment, and screen burn-in. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and reduces defective display such as screen burn-in; hence, such a liquid crystal display device is particularly useful as liquid crystal display devices of a VA mode and PSVA mode which involve active matrix driving and can be applied to the liquid crystal display devices of liquid crystal TV sets, monitors, mobile phones, and smartphones.Type: GrantFiled: March 12, 2014Date of Patent: October 11, 2016Assignee: DIC CORPORATIONInventors: Shinji Ogawa, Yoshinori Iwashita, Hiroshi Maki, Junichiro Koike, Masami Shishikura, Ryosuke Asami
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Patent number: 9436032Abstract: There is provided a liquid crystal display device that includes a liquid crystal composition and a color filter having a particular slope parameter that indicates the degree of aggregation of an organic pigment. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and resolves the problems of display defects, such as white streaks, variations in alignment, and image sticking. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and suppressing display defects such as image sticking. Therefore, the liquid crystal display device is useful for active matrix driving liquid crystal display devices with an IPS mode or an FFS mode and can be applied to liquid crystal display devices.Type: GrantFiled: December 24, 2013Date of Patent: September 6, 2016Assignee: DIC CORPORATIONInventors: Takeshi Kuriyama, Jouji Kawamura, Junichiro Koike, Hiroshi Maki, Masami Shishikura, Ryosuke Asami
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Publication number: 20160252772Abstract: The present invention provides a liquid crystal display device that prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and that resolves the problems of display defects, such as white streaks, variations in alignment, and image sticking. The liquid crystal display device of the present invention has features of preventing a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and suppressing display defects such as image sticking Therefore, the liquid crystal display device is particularly useful for active matrix driving liquid crystal display devices with an IPS mode or an FFS mode and can be applied to liquid crystal display devices of, for example, liquid crystal televisions, monitors, cellular phones, and smart phones.Type: ApplicationFiled: November 29, 2013Publication date: September 1, 2016Applicant: DIC CORPORATIONInventors: Takeshi Kuriyama, Jouji Kawamura, Hiroshi Maki, Junichiro Koike, Masami Shishikura, Ryosuke Asami
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Publication number: 20160054619Abstract: There is provided a liquid crystal display device that includes a liquid crystal composition and a color filter having a particular slope parameter that indicates the degree of aggregation of an organic pigment. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and resolves the problems of display defects, such as white streaks, variations in alignment, and image sticking. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and suppressing display defects such as image sticking. Therefore, the liquid crystal display device is useful for active matrix driving liquid crystal display devices with an IPS mode or an FFS mode and can be applied to liquid crystal display devices.Type: ApplicationFiled: December 24, 2013Publication date: February 25, 2016Applicant: DIC CORPORATIONInventors: Takeshi Kuriyama, Jouji Kawamura, Junichiro Koike, Hiroshi Maki, Masami Shishikura, Ryosuke Asami
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Publication number: 20160049596Abstract: 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: ApplicationFiled: March 6, 2014Publication date: February 18, 2016Applicants: DIC CORPORATION, TOKYO INSTITUTE OF TECHNOLOGYInventors: Junichi HANNA, Hiroaki LINO, Yasuyuki WATANABE, Junichiro KOIKE, Hiroshi MAKI, Yutaka TACHIKAWA, Atsuhisa MIYAWAKI, Yoshinobu SAKURAI
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Publication number: 20160009997Abstract: The present invention provides a liquid crystal display device which prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and which overcomes problems of defective display such as voids, uneven alignment, and screen burn-in. The liquid crystal display device of the present invention prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and reduces defective display such as screen burn-in; hence, such a liquid crystal display device is particularly useful as liquid crystal display devices of a VA mode and PSVA mode which involve active matrix driving and can be applied to the liquid crystal display devices of liquid crystal TV sets, monitors, mobile phones, and smartphones.Type: ApplicationFiled: March 12, 2014Publication date: January 14, 2016Applicant: DIC CORPORATIONInventors: Shinji Ogawa, Yoshinori Iwashita, Junichiro Koike, Hiroshi Maki, Masami Shishikura, Ryosuke Asami
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Publication number: 20150315471Abstract: There is provided a liquid crystal display device which prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and which overcomes problems of defective display such as voids, uneven alignment, and screen burn-in. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and reduces defective display such as screen burn-in; hence, such a liquid crystal display device is particularly useful as liquid crystal display devices of a VA mode and PSVA mode which involve active matrix driving and can be applied to the liquid crystal display devices of liquid crystal TV sets, monitors, mobile phones, and smartphones.Type: ApplicationFiled: March 12, 2014Publication date: November 5, 2015Applicant: DIC CORPORATIONInventors: Shinji Ogawa, Yoshinori Iwashita, Hiroshi Maki, Junichiro Koike, Masami Shishikura, Ryosuke Asami
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Patent number: 6524757Abstract: An object is to provide a color filter which is capable of forming a pattern using an alkaline developer and has excellent heat resistance, solvent resistance and chemical resistance, and is also suitable for practical use. The color filter comprises a transparent substrate and a pixel formed on the transparent substrate, wherein the pixel is made of a coating film of a curable colored composition containing (a) a coloring material, (b) a compound having a photopolymerizable functional group and (c) an amino resin having a carboxyl group and/or a phenolic hydroxyl group and the coating layer is photocured, followed by heat curing.Type: GrantFiled: July 11, 2001Date of Patent: February 25, 2003Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Junichiro Koike, Hisatomo Yonehara, Hiroyuki Tokuda, Yasunobu Hirota
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Publication number: 20020025481Abstract: An object is to provide a color filter which is capable of forming a pattern using an alkaline developer and has excellent heat resistance, solvent resistance and chemical resistance, and is also suitable for practical use. The color filter comprises a transparent substrate and a pixel formed on the transparent substrate, wherein the pixel is made of a coating film of a curable colored composition containing (a) a coloring material, (b) a compound having a photopolymerizable functional group and (c) an amino resin having a carboxyl group and/or a phenolic hydroxyl group and the coating layer is photocured, followed by heat curing.Type: ApplicationFiled: July 11, 2001Publication date: February 28, 2002Applicant: Dainippon Ink and Chemicals, Inc.Inventors: Junichiro Koike, Hisatomo Yonehara, Hiroyuki Tokuda, Yasunobu Hirota