Patents by Inventor Eriko Kurihara
Eriko Kurihara 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: 10774264Abstract: Provided are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or has a suitable balance regarding at least two of the characteristics; and an AM device having characteristics such as a short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio and a long service life. The liquid crystal composition may contain a specific compound having large negative dielectric anisotropy as a first component, a specific compound having high maximum temperature as a second component, a specific compound having negative dielectric anisotropy as a third component, or a specific compound having a polymerizable group as an additive component.Type: GrantFiled: June 29, 2016Date of Patent: September 15, 2020Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Eriko Kurihara, Masayuki Saito
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Patent number: 10655063Abstract: Provided are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, low viscosity, suitable optical anisotropy and large negative dielectric anisotropy, or having a suitable balance regarding at least two of the characteristics; and an AM device including the composition. The liquid crystal composition contains a specific compound having large negative dielectric anisotropy as a first component, and a specific compound having high maximum temperature or low viscosity as a second component, and may contain a specific compound having negative dielectric anisotropy as a third component, or a specific compound having a polymerizable group as an additive.Type: GrantFiled: October 16, 2017Date of Patent: May 19, 2020Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Masayuki Saito, Eriko Kurihara
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Publication number: 20190292461Abstract: Provided is a liquid crystal composite that is suitable for dimming and includes a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature, a low minimum temperature, a small viscosity, a large optical anisotropy and a large negative dielectric anisotropy or being suitably balanced between at least two of these characteristics, and a liquid crystal dimming device including the liquid crystal composite, where the liquid crystal composite includes a polymer and a liquid crystal composition including a specific compound having a large negative dielectric anisotropy, and the liquid crystal composite may further include a specific compound having a high maximum temperature or a low minimum temperature.Type: ApplicationFiled: November 10, 2017Publication date: September 26, 2019Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Naoko MATSUDA, Eriko KURIHARA, Masayuki SAITO
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Publication number: 20190256773Abstract: A liquid crystal composition for dimming that satisfies at least one of characteristics such as a high maximum temperature, a low minimum temperature, a small viscosity, a large optical anisotropy and a large positive dielectric anisotropy, or that is suitably balanced between at least two of these characteristics, and a liquid crystal dimming device including this composition. A liquid crystal composition for dimming that includes a specific compound having a large positive dielectric anisotropy as a first component and that may include a specific compound having a high maximum temperature or a low minimum temperature as a second component and a specific compound having a large dielectric anisotropy in the minor axis direction as a third component.Type: ApplicationFiled: July 20, 2017Publication date: August 22, 2019Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Naoko MATSUDA, Eriko KURIHARA, Masayuki SAITO
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Publication number: 20190249083Abstract: A liquid crystal composition for dimming that satisfies at least one of characteristics such as a high maximum temperature, a low minimum temperature, a small viscosity, a large optical anisotropy and a large negative dielectric anisotropy, or that is suitably balanced between at least two of these characteristics, and a liquid crystal dimming device including this composition. A liquid crystal composition for dimming that includes a specific compound having a large negative dielectric anisotropy as a first component and that may include a specific compound having a high maximum temperature or a low minimum temperature as a second component.Type: ApplicationFiled: July 14, 2017Publication date: August 15, 2019Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Naoko MATSUDA, ERIKO KURIHARA, Masayuki SAITO
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Publication number: 20190048261Abstract: Provided are a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature, a low minimum temperature, small viscosity, large optical anisotropy, large negative dielectric anisotropy or having a suitable balance regarding at least two of the characteristics, and an AM device including the composition. The liquid crystal composition may contain a specific compound having small viscosity or a low minimum temperature as a first component, a specific compound having large optical anisotropy and negative dielectric anisotropy as a second component, a specific compound having a high maximum temperature or small viscosity as a third component, a specific compound having negative dielectric anisotropy or a low minimum temperature as a fourth component, or a specific compound having a polymerizable group as an additive component.Type: ApplicationFiled: January 30, 2017Publication date: February 14, 2019Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Eriko KURIHARA, Masayuki SAITO
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Publication number: 20190048263Abstract: Provided are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy and large negative dielectric anisotropy, or the liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device including the composition. The liquid crystal composition may contain a specific compound having small viscosity or low minimum temperature as a first component, a specific compound having negative dielectric anisotropy, small viscosity and low threshold voltage as a second component, a specific compound having high maximum temperature or small viscosity as a third component, a specific compound having negative dielectric anisotropy or low minimum temperature as a fourth component, or a specific compound having a polymerizable group as an additive component.Type: ApplicationFiled: February 1, 2017Publication date: February 14, 2019Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Eriko KURIHARA, Masayuki SAITO
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Patent number: 10030198Abstract: The means concerns a liquid crystal composition that has negative dielectric anisotropy and that comprises a specific compound having a high stability to ultraviolet light as a first component, wherein the composition may comprise a specific compound having a high maximum temperature or a small viscosity as a second component, and a specific compound having a large negative dielectric anisotropy as a third component, and a specific compound having a polymerizable group as an additive component.Type: GrantFiled: October 21, 2014Date of Patent: July 24, 2018Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Eriko Kurihara, Masayuki Saito, Yoshimasa Furusato
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Publication number: 20180201836Abstract: Provided are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or has a suitable balance regarding at least two of the characteristics; and an AM device having characteristics such as a short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio and a long service life. The liquid crystal composition may contain a specific compound having large negative dielectric anisotropy as a first component, a specific compound having high maximum temperature as a second component, a specific compound having negative dielectric anisotropy as a third component, or a specific compound having a polymerizable group as an additive component.Type: ApplicationFiled: June 29, 2016Publication date: July 19, 2018Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Eriko KURIHARA, Masayuki SAITO
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Publication number: 20180119013Abstract: A liquid crystal composition contains a specific compound having positive dielectric anisotropy as a first component, and a specific compound having large negative dielectric anisotropy as a second component, and may contain a specific compound having high maximum temperature or small viscosity as a third component, or a specific compound having large negative dielectric anisotropy and low minimum temperature as a fourth component.Type: ApplicationFiled: October 27, 2017Publication date: May 3, 2018Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Masayuki SAITO, Eriko KURIHARA
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Publication number: 20180105749Abstract: Provided are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, low viscosity, suitable optical anisotropy and large negative dielectric anisotropy, or having a suitable balance regarding at least two of the characteristics; and an AM device including the composition. The liquid crystal composition contains a specific compound having large negative dielectric anisotropy as a first component, and a specific compound having high maximum temperature or low viscosity as a second component, and may contain a specific compound having negative dielectric anisotropy as a third component, or a specific compound having a polymerizable group as an additive.Type: ApplicationFiled: October 16, 2017Publication date: April 19, 2018Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Masayuki SAITO, Eriko KURIHARA
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Patent number: 9868906Abstract: A liquid crystal composition satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat, or has a suitable balance regarding at least two of the characteristics. The composition contains a specific compound having high stability to ultraviolet light as a first component, and a liquid crystal display device includes the composition. The composition may contain a specific compound having large negative dielectric anisotropy as a second component, a specific compound having high maximum temperature or small viscosity as a third component, and a specific compound having a polymerizable group as an additive component.Type: GrantFiled: June 19, 2014Date of Patent: January 16, 2018Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Eriko Kurihara, Masayuki Saito, Yoshimasa Furusato
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Publication number: 20170283698Abstract: Shown is a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature, a low minimum temperature, a large elastic constant, a suitable optical anisotropy and a large negative dielectric anisotropy, or has a suitable balance regarding at least two of the characteristics, and an AM device including the composition. The liquid crystal composition may contain a specific compound having a high maximum temperature, a low minimum temperature, a large elastic constant and a large negative dielectric anisotropy as a first component, a specific compound having a high maximum temperature or a small viscosity as a second component, a specific compound having negative dielectric anisotropy as a third component, or a specific compound having a polymerizable group as an additive component.Type: ApplicationFiled: March 29, 2017Publication date: October 5, 2017Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Eriko KURIHARA, Masayuki SAITO
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Patent number: 9714382Abstract: A liquid crystal composition having at least one or a suitable balance regarding at least two of characteristics such as high maximum temperature of a nematic phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light or heat and a large elastic constant; an AM device having characteristics such as short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio and long service life are described.Type: GrantFiled: August 12, 2015Date of Patent: July 25, 2017Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Eriko Kurihara, Masayuki Saito, Yoshimasa Furusato
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Patent number: 9714383Abstract: A liquid crystal composition having a suitable balance regarding at least one or two of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large positive dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat or a large elastic constant; and an AM device having a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio or a long service life. The composition has positive dielectric anisotropy and contains a specific compound having high stability to ultraviolet light as a first component, and a liquid crystal display device includes the composition.Type: GrantFiled: June 9, 2014Date of Patent: July 25, 2017Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: Eriko Kurihara, Masayuki Saito, Yoshimasa Furusato, Kenji Hirata
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Publication number: 20160168463Abstract: A liquid crystal composition satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat, or has a suitable balance regarding at least two of the characteristics. The composition contains a specific compound having high stability to ultraviolet light as a first component, and a liquid crystal display device includes the composition. The composition may contain a specific compound having large negative dielectric anisotropy as a second component, a specific compound having high maximum temperature or small viscosity as a third component, and a specific compound having a polymerizable group as an additive component.Type: ApplicationFiled: June 19, 2014Publication date: June 16, 2016Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: ERIKO KURIHARA, MASAYUKI SAITO, YOSHIMASA FURUSATO
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Publication number: 20160137922Abstract: A liquid crystal composition having a suitable balance regarding at least one or two of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large positive dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat or a large elastic constant; and an AM device having a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio or a long service life. The composition has positive dielectric anisotropy and contains a specific compound having high stability to ultraviolet light as a first component, and a liquid crystal display device includes the composition.Type: ApplicationFiled: June 9, 2014Publication date: May 19, 2016Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATIONInventors: ERIKO KURIHARA, MASAYUKI SAITO, YOSHIMASA FURUSATO, KENJI HIRATA
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Publication number: 20160090531Abstract: A liquid crystal composition having at least one or a suitable balance regarding at least two of characteristics such as high maximum temperature of a nematic phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light or heat and a large elastic constant; an AM device having characteristics such as short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio and long service life are described.Type: ApplicationFiled: August 12, 2015Publication date: March 31, 2016Inventors: ERIKO KURIHARA, MASAYUKI SAITO, YOSHIMASA FURUSATO
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Publication number: 20150108402Abstract: The means concerns a liquid crystal composition that has negative dielectric anisotropy and that comprises a specific compound having a high stability to ultraviolet light as a first component, wherein the composition may comprise a specific compound having a high maximum temperature or a small viscosity as a second component, and a specific compound having a large negative dielectric anisotropy as a third component, and a specific compound having a polymerizable group as an additive component.Type: ApplicationFiled: October 21, 2014Publication date: April 23, 2015Inventors: ERIKO KURIHARA, MASAYUKI SAITO, YOSHIMASA FURUSATO
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Patent number: 8968597Abstract: A liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat or that is suitably balanced between at least two of the characteristics, is described. The liquid crystal composition includes a compound having three or more polymerizable groups as a first component and a compound having one or two polymerizable groups as a second component in a suitable ratio, and that may include a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a third component or a specific compound having a small viscosity or a high maximum temperature as a fourth component.Type: GrantFiled: August 6, 2013Date of Patent: March 3, 2015Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Yoshimasa Furusato, Subaru Kawasaki, Eriko Kurihara