Patents by Inventor Ryosuke Asami
Ryosuke Asami 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: 20200278608Abstract: A problem to be solved by the present invention is to provide a coloring composition which contains a threne compound unlikely to be highly dispersed in glycol solvents used in color filter-preparing steps in recent years, which allows the threne compound to be highly dispersed in a glycol solvent, and which can be used without causing an undesirable influence such as a curing failure in a color filter-preparing step. The above problem is solved by providing a coloring composition containing a specific anthraquinone derivative, a threne compound, and a glycol organic solvent.Type: ApplicationFiled: November 27, 2018Publication date: September 3, 2020Applicant: DIC CorporationInventors: Kazushi Suzuki, Ryosuke Asami
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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: 20160200912Abstract: Provided is a light-blocking pigment composition which has high insulation properties and a low dielectric constant and which can satisfy high optical density, and a light-blocking member for display, which contains the light-blocking pigment composition. When a pigment composition containing a benzimidazolone dioxazine-based pigment, a benzimidazolone-based pigment, and a carbazole dioxazine-based pigment in a specific ratio is used for a light-blocking member for display, since the light-blocking member has high insulation properties, a low dielectric constant, and high optical density, it is possible to provide a display having high light-blocking properties.Type: ApplicationFiled: December 18, 2014Publication date: July 14, 2016Applicant: DIC CorporationInventors: Kazushi SUZUKI, Ryosuke ASAMI, Ikuro KIYOTO
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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: 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