Patents by Inventor Norikatsu Hattori
Norikatsu Hattori 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).
-
Publication number: 20130105731Abstract: The invention provides a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a large optical anisotropy, a large negative dielectric anisotropy, a large elastic constant, a large specific resistance, a high stability to ultraviolet light and to heat, or having a suitable balance regarding at least two of the characteristics, and the AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth The liquid crystal composition having a negative dielectric anisotropy may contain a specific three ring compound having a high maximum temperature and a high elastic constant, as the first component, a specific compound having a large negative dielectric anisotropy as the second component, a specific compound having a small viscosity as the third component, and a specific compound having a large negative dielectric aType: ApplicationFiled: June 14, 2011Publication date: May 2, 2013Inventors: Takako Ito, Norikatsu Hattori
-
Patent number: 8404151Abstract: The invention is to provide 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 dielectric anisotropy, a large specific resistance, a large elastic constant, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced between at least two of the characteristics; and is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.Type: GrantFiled: June 13, 2011Date of Patent: March 26, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Hiroaki Fujita, Norikatsu Hattori
-
Patent number: 8404317Abstract: The invention is to provide a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the 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 heat, or a liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth; wherein a liquid crystal composition has a negative dielectric anisotropy and contains a specific compound having a large negative dielectric anisotropy as a first component and a specific two-ring compound having a large optical anisotropy and a low viscosity as a second component, and a liquid crystal display device contains the composition.Type: GrantFiled: December 23, 2011Date of Patent: March 26, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Masayuki Saito, Norikatsu Hattori
-
Publication number: 20130069002Abstract: To provide a liquid crystal composition satisfying at least one characteristic including a high maximum temperature of a nematic phase, a low minimum temperature thereof, a small viscosity, a large optical anisotropy, dielectric anisotropy and specific resistance, a high stability to ultraviolet light and heat, or a liquid crystal composition having a suitable balance regarding at least two characteristics; and an AM device having a short response time, a large voltage holding ratio and contrast ratio and a long life; a liquid crystal composition has a negative dielectric anisotropy and contains a compound having a low minimum temperature as a first component and a compound having a large negative dielectric anisotropy as a second component, and may contain a compound having a small viscosity as a third component and a compound having a large negative dielectric anisotropy as a fourth component, and a liquid crystal display device containing the composition.Type: ApplicationFiled: September 14, 2012Publication date: March 21, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Takayoshi YANAI, Norikatsu HATTORI, Hiroyuki TANAKA
-
Publication number: 20130062559Abstract: The liquid crystal composition has a negative dielectric anisotropy, and contains a specific bicyclic compound having a large optical anisotropy and negative dielectric anisotropy as a first component and a specific tricyclic compound having a large dielectric anisotropy as a second component, and may contain a specific compound having a small viscosity as a third component, a specific compound having a large dielectric anisotropy and a small viscosity as a fourth component and a specific compound having a large dielectric anisotropy as a fifth component, and the liquid crystal display device includes the composition.Type: ApplicationFiled: June 2, 2011Publication date: March 14, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Norikatsu Hattori, Kazuhiko Saigusa
-
Publication number: 20130062560Abstract: The liquid crystal composition having a negative dielectric anisotropy contains two ring compound having a large optical anisotropy and a negatively large dielectric anisotropy as the first component, three ring compound having a large maximum temperature and a large dielectric anisotropy as the second component, three ring compound having a large optical anisotropy and a large dielectric anisotropy as the third component, and two ring compound having a small viscosity as the fourth component. The liquid crystal display device contains the compositions.Type: ApplicationFiled: May 24, 2011Publication date: March 14, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Norikatsu Hattori, Kazuhiko Saigusa
-
Patent number: 8394468Abstract: Provided is a polymerizable compound with large solubility in a liquid crystal composition and high reactivity irradiated by ultraviolet in the longer wavelength range. Provided is a liquid crystal composition that satisfies at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature of a nematic phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or that is suitably balanced between at least two of the characteristics.Type: GrantFiled: May 7, 2010Date of Patent: March 12, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Maiko Ito, Keiji Kimura, Norikatsu Hattori, Eriko Saegusa
-
Patent number: 8366963Abstract: A liquid crystal compound is to be obtained that has stability to heat, light and so forth, a high clearing point, a suitable optical anisotropy, a large negative dielectric anisotropy, and excellent compatibility with other liquid crystal compounds. A liquid crystal composition containing the compound is also to be obtained that has a low viscosity, a suitable optical anisotropy, a suitable negative dielectric anisotropy, a low threshold voltage, a high maximum temperature of a nematic phase (phase transition temperature from a nematic phase to an isotropic phase), and a low minimum temperature of a nematic phase. A compound having a hydrocoumarin skeleton is synthesized, and a liquid crystal composition containing the compound is produced.Type: GrantFiled: April 11, 2011Date of Patent: February 5, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Mayumi Goto, Teruyo Sugiura, Norikatsu Hattori, Kouki Sagou
-
Patent number: 8367167Abstract: A liquid crystal composition that satisfies at least one characteristic, such as, high maximum temperature of a nematic phase, low minimum temperature of a nematic phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large specific resistance, large elastic constant, high stability to ultraviolet light and high stability to heat, or that is suitably balanced between at least two of the characteristics; and provides an AM device that has short response time, large voltage holding ratio, large contrast ratio, long service life and so forth. A liquid crystal composition is provided that has a nematic phase and includes a specific three-ring compound having a large dielectric anisotropy as a first component, a specific four-ring compound having a high maximum temperature and a large dielectric anisotropy as a second component, and a liquid crystal display device containing the composition.Type: GrantFiled: December 7, 2011Date of Patent: February 5, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Takayoshi Yanai, Norikatsu Hattori
-
Patent number: 8366964Abstract: The invention is to provide 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 dielectric anisotropy, a large specific resistance, a large elastic constant, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics; and is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The invention provides a liquid crystal composition that has a nematic phase and includes a specific three-ring compound having a large dielectric anisotropy as a first component and a specific four-ring compound having a high maximum temperature and a large dielectric anisotropy as a second component, and a liquid crystal display device containing the composition.Type: GrantFiled: March 28, 2011Date of Patent: February 5, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Taketo Maeda, Norikatsu Hattori, Hiroaki Fujita
-
Patent number: 8357436Abstract: The subject is to provide a liquid crystal composition that satisfies at least one characteristic 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 negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two characteristics thereof. The subject is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The invention provides a liquid crystal composition having a negative dielectric anisotropy that includes a specific compound having 1-pyran-2,5-dyil as a first component, and a specific compound having a negatively large dielectric anisotropy as a second component , and provides a liquid crystal display device containing the composition.Type: GrantFiled: August 25, 2009Date of Patent: January 22, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Masayuki Saito, Norikatsu Hattori
-
Publication number: 20130001469Abstract: A liquid crystal composition is described, which contains a two-ring compound having a large optical anisotropy and a negatively large dielectric anisotropy as a first component, and a two-ring compound having a negatively large dielectric anisotropy and a small viscosity as a second component, and may further contain at least one of a compound having a small viscosity as a third component, a compound having a negatively large dielectric anisotropy as a fourth component, and a compound having an especially negatively large dielectric anisotropy as a fifth component. An AM liquid crystal display device containing the liquid crystal composition is also described.Type: ApplicationFiled: February 18, 2011Publication date: January 3, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Norikatsu Hattori, Kazuhiko Saigusa
-
Patent number: 8343596Abstract: The invention is to provide 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 regarding at least two of the characteristics, wherein the liquid crystal composition has negative dielectric anisotropy and includes a specific compound having a large negative dielectric anisotropy as a first component, a specific compound containing a pyran ring and having a large negative dielectric anisotropy as a second component, a specific compound having a small viscosity as a third component, and a specific compound having a large negative dielectric anisotropy as a fourth component, and the liquid crystal display device contains this composition.Type: GrantFiled: January 14, 2010Date of Patent: January 1, 2013Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Norikatsu Hattori, Masayuki Saito
-
Publication number: 20120313043Abstract: To provide a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature thereof, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a large elastic constant, a high stability to ultraviolet light and heat, or a liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth; wherein a liquid crystal composition has a nematic phase and contains a specific compound having a high maximum temperature and a large dielectric anisotropy as a first component, and a specific compound having a small viscosity as a second component, and may contain a specific compound having a large dielectric anisotropy as a third component.Type: ApplicationFiled: June 11, 2012Publication date: December 13, 2012Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Taketo MAEDA, Takayoshi YANAI, Hiroyuki TANAKA, Norikatsu HATTORI
-
Publication number: 20120313042Abstract: The invention is to provide 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 large optical anisotropy, a large positive dielectric anisotropy, a large specific resistance, a large elastic coefficient, a high stability to ultraviolet light and heat, or that is suitably balanced between at least two of the characteristics. As the liquid crystal display device containing the compositions is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth, thus it can be used for the liquid crystal projector, liquid crystal television and so forth.Type: ApplicationFiled: June 6, 2012Publication date: December 13, 2012Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Takayoshi YANAI, Norikatsu HATTORI, Tokifumi MASUKAWA
-
Publication number: 20120298917Abstract: Provided is an AM device containing a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a large optical anisotropy, a large positive dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to and heat, or having a suitable balance regarding at least two of the characteristics, and the AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth; wherein a liquid crystal display device contains a liquid crystal composition having a positive dielectric anisotropy and containing a specific compound having a large positive dielectric anisotropy as a first component and a specific compound having a small viscosity as a second component.Type: ApplicationFiled: February 1, 2011Publication date: November 29, 2012Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Norikatsu Hattori, Shogo Yoshida
-
Patent number: 8313670Abstract: The subject is to provide 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 negatively large dielectric anisotropy, a large specific resistance and a high stability to ultraviolet light or heat, or that is suitably balanced regarding at least two of the characteristics. The subject is to provide a AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.Type: GrantFiled: January 13, 2011Date of Patent: November 20, 2012Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Norikatsu Hattori, Eriko Kurihara
-
Publication number: 20120261614Abstract: Providing a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature of nematic phase, 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 having a suitable balance regarding at least two of the characteristics; and an AM device having short response time, large voltage holding ratio, large contrast ratio, long service life and so forth. The liquid crystal composition has a negative dielectric anisotropy and contains a specific two-ring compound having a low minimum temperature as a first component, a specific compound having a large negative dielectric anisotropy as a second component, a specific compound having a low viscosity as a third component, and a specific compound having a large negative dielectric anisotropy as a fourth component. The liquid crystal display device contains the composition.Type: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: YASUYUKI GOTO, SUBARU KAWASAKI, NORIKATSU HATTORI
-
Publication number: 20120241671Abstract: Provided is a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a large elastic constant, a high stability to ultraviolet light and a high stability to heat, or having a suitable balance regarding at least two of the characteristics. Also provided is an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition contains a specific compound having a large elastic constant as a first component, and a specific compound having a large dielectric anisotropy as a second component, and has a nematic phase, and a liquid crystal display device contains the composition.Type: ApplicationFiled: November 1, 2010Publication date: September 27, 2012Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Norikatsu Hattori, Takashi Hiraoka, Taketo Maeda, Masayuki Saito
-
Patent number: 8273421Abstract: The invention is to provide 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 regarding at least two of the characteristics; and is to provide a AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth; wherein the liquid crystal composition has negative dielectric anisotropy and includes a specific compound having tertahydropyran-2,5-diyl as a first component and a specific four-ring compound having a high maximum temperature as a second component, and the liquid crystal display device contains this composition.Type: GrantFiled: September 24, 2009Date of Patent: September 25, 2012Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Masayuki Saito, Norikatsu Hattori