Patents by Inventor Marina Goto
Marina Goto 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).
-
Patent number: 11555152Abstract: [Object] An object of the present invention is to provide a liquid crystal composition containing a polymerizable compound for use in the manufacture of a PSA or PSVA liquid crystal display device. The polymerizable compound has a sufficiently high polymerization rate. The PSA or PSVA liquid crystal display device has few or no display defects due to a change in pretilt angle, has an adequate pretilt angle, and has high responsiveness. The present invention also provides a liquid crystal display device having the liquid crystal composition. [Solution] The object is achieved by using a liquid crystal composition containing one or two or more polymerizable compounds represented by the general formula (I).Type: GrantFiled: April 13, 2017Date of Patent: January 17, 2023Assignee: DIC CORPORATIONInventors: Marina Goto, Yuichi Inoue, Shota Kosaka, Go Sudo, Masanao Hayashi, Manabu Takachi
-
Publication number: 20220172843Abstract: A selection unit (11) in a learning device (10) inputs a plurality of “learning candidate data units.” The plurality of learning candidate data units are respectively related to a plurality of subjects including a plurality of cancer patients and a plurality of non-cancer patients. Further, each learning candidate data unit at least includes a “urine odor data unit” and a “cancer label.” Then, from the plurality of input learning candidate data units, the selection unit (11) selects part of the plurality of learning candidate data units as a “learning target data set,” based on a “selection rule.” By using the learning target data set selected by the selection unit (11), a determination model formation unit (12) forms a “determination model” for determining which of urine of a cancer patient and urine of a non-cancer patient a determination target urine odor data unit is related to.Type: ApplicationFiled: April 3, 2020Publication date: June 2, 2022Applicants: NEC CORPORATION, Masao MIYASHITAInventors: So YAMADA, Riki ETO, Junko WATANABE, Masao MIYASHITA, Marina GOTO
-
Patent number: 10351772Abstract: The present invention relates to a nematic liquid crystal composition containing a polymerizable compound and having a negative dielectric anisotropy (??) and PSA or PSVA liquid crystal display element produced by using the same. The liquid crystal composition according to the present invention can provide PSA or PSVA liquid crystal display element, in which a sufficient pretilt angle is included, the amount of remaining monomer is small, there are no or almost no problems, e.g., alignment defects and display defects, arisen from a low voltage holding rate (VHR) and the like, and excellent response performance is exhibited. A liquid crystal display element using the liquid crystal composition according to the present invention is useful for an active-matrix-drive liquid crystal display element and can be applied to PSA, PSVA, and other liquid crystal display elements.Type: GrantFiled: April 9, 2015Date of Patent: July 16, 2019Assignee: DIC CORPORATIONInventors: Go Sudo, Marina Goto
-
Publication number: 20190203120Abstract: A problem to be solved by the present invention is to provide a liquid crystal composition containing a polymerizable compound for producing a VA-mode, PSA-mode, or PSVA-mode liquid crystal display device which has large K33, small ?1/K33, high VHR after ultraviolet irradiation, a high polymerization rate of the polymerizable compound, no or very few display defects due to a change in pretilt angle, a satisfactory pretilt angle, and excellent response performance, and also to provide a liquid crystal display device using the liquid crystal composition. The problem is solved by a liquid crystal composition of the present invention containing a compound of formula (B31) and a compound of formula (CB31).Type: ApplicationFiled: November 9, 2017Publication date: July 4, 2019Applicants: DIC Corporation, DIC CorporationInventors: Go Sudo, Shinichi Hirata, Marina Goto
-
Patent number: 10323186Abstract: There is provided a liquid crystal composition that exhibits a sufficiently low viscosity (?), a sufficiently low rotational viscosity (?1), and a large elastic modulus (K33) without decreasing the refractive index anisotropy (?n) and the nematic phase-isotropic liquid phase transition temperature (Tni) and without increasing the solid phase-nematic phase transition temperature (Tcn). The liquid crystal display element that uses this liquid crystal composition satisfactorily obtains a pretilt angle and has a high voltage holding ratio (VHR) and high-speed response. Thus, a liquid crystal display element that has no or less alignment defects and display defects such as image sticking, and has high display quality and high response speed is obtained.Type: GrantFiled: December 10, 2015Date of Patent: June 18, 2019Assignee: DIC CORPORATIONInventors: Go Sudo, Marina Goto
-
Publication number: 20190119575Abstract: [Object] An object of the present invention is to provide a liquid crystal composition containing a polymerizable compound for use in the manufacture of a PSA or PSVA liquid crystal display device. The polymerizable compound has a sufficiently high polymerization rate. The PSA or PSVA liquid crystal display device has few or no display defects due to a change in pretilt angle, has an adequate pretilt angle, and has high responsiveness. The present invention also provides a liquid crystal display device having the liquid crystal composition. [Solution] The object is achieved by using a liquid crystal composition containing one or two or more polymerizable compounds represented by the general formula (I).Type: ApplicationFiled: April 13, 2017Publication date: April 25, 2019Applicant: DIC CorporationInventors: Marina Goto, Yuichi Inoue, Shota Kosaka, Go Sudo, Masanao Hayashi, Manabu Takachi
-
Patent number: 10133109Abstract: Provided is an LCD device having excellent high speed responsiveness. This LCD device contains a polymer or a copolymer in a liquid crystal composition sandwiched between two transparent substrates, at least one of which has an electrode, and the content of the polymer or the copolymer is 1% by mass or greater and less than 40% by mass of the total mass of the liquid crystal composition and the polymer or the copolymer. This LCD device can be applied to various operation modes such as TN, STN, ECB, VA, VA-TN, IPS, FFS, a ? cell, OCB, and cholesteric liquid crystals.Type: GrantFiled: February 12, 2015Date of Patent: November 20, 2018Assignee: DIC CORPORATION (TOKYO)Inventors: Toru Fujisawa, Go Sudo, Shuuhei Yamamoto, Kazunori Maruyama, Haruyoshi Takatsu, Marina Goto, Fumiaki Kodera, Keumhee Jang
-
Publication number: 20180307069Abstract: The liquid crystal display element includes: two transparent substrates; a liquid crystal composition sandwiched between the two transparent substrates and containing one or two or more liquid crystal compounds; and a polymer or copolymer that is included in the liquid crystal composition, the polymer or copolymer being a cured product of a polymerizable composition that contains one or two or more polymerizable compounds and a photopolymerization initiator having a maximum absorption wavelength peak at 310 nm to 380 nm. The content of the polymerizable composition is 1% by mass or more and less than 40% by mass based on the total weight of the polymerizable composition and the liquid crystal composition.Type: ApplicationFiled: August 9, 2016Publication date: October 25, 2018Applicant: DIC CorporationInventors: Fumiaki Kodera, Keumhee Jang, Toru Fujisawa, Hiroshi Hasebe, Haruyoshi Takatsu, Marina Goto, Go Sudo, Syuhei Yamamoto
-
Publication number: 20170327742Abstract: There is provided a liquid crystal composition that exhibits a sufficiently low viscosity (?), a sufficiently low rotational viscosity (?1), and a large elastic modulus (K33) without decreasing the refractive index anisotropy (?n) and the nematic phase-isotropic liquid phase transition temperature (Tni) and without increasing the solid phase-nematic phase transition temperature (Tcn). The liquid crystal display element that uses this liquid crystal composition satisfactorily obtains a pretilt angle and has a high voltage holding ratio (VHR) and high-speed response. Thus, a liquid crystal display element that has no or less alignment defects and display defects such as image sticking, and has high display quality and high response speed is obtained.Type: ApplicationFiled: December 10, 2015Publication date: November 16, 2017Applicant: DIC CorporationInventors: Go Sudo, Marina Goto
-
Publication number: 20170051203Abstract: The present invention relates to a nematic liquid crystal composition containing a polymerizable compound and having a negative dielectric anisotropy (??) and PSA or PSVA liquid crystal display element produced by using the same. The liquid crystal composition according to the present invention can provide PSA or PSVA liquid crystal display element, in which a sufficient pretilt angle is included, the amount of remaining monomer is small, there are no or almost no problems, e.g., alignment defects and display defects, arisen from a low voltage holding rate (VHR) and the like, and excellent response performance is exhibited. A liquid crystal display element using the liquid crystal composition according to the present invention is useful for an active-matrix-drive liquid crystal display element and can be applied to PSA, PSVA, and other liquid crystal display elements.Type: ApplicationFiled: April 9, 2015Publication date: February 23, 2017Applicant: DIC CORPORATION (TOKYO)Inventors: Go Sudo, Marina Goto
-
Publication number: 20170045765Abstract: Provided is an LCD device having excellent high speed responsiveness. This LCD device contains a polymer or a copolymer in a liquid crystal composition sandwiched between two transparent substrates, at least one of which has an electrode, and the content of the polymer or the copolymer is 1% by mass or greater and less than 40% by mass of the total mass of the liquid crystal composition and the polymer or the copolymer. This LCD device can be applied to various operation modes such as TN, STN, ECB, VA, VA-TN, TPS, FFS, a ? cell, OCB, and cholesteric liquid crystals.Type: ApplicationFiled: February 12, 2015Publication date: February 16, 2017Applicant: DIC CorporationInventors: Toru Fujisawa, Go Sudo, Shuuhei Yamamoto, Kazunori Maruyama, Haruyoshi Takatsu, Marina Goto, Fumiaki Kodera, Keumhee Jang