Patents Examined by Chanceity N Robinson
  • Patent number: 11644750
    Abstract: Provided is a negative photoresist used for a semiconductor encapsulation process, belonging to the technical field of semiconductor processing. A negative photoresist formulation includes 40-65 wt % of modified epoxy acrylate, 3-6 wt % of photosensitizer, 100-1000 ppm of leveling agent, and the remainder of solvent; the leveling agent is a solution of a 7:3 mass ratio of polydimethylsiloxane copolymer having a molecular weight of 3000-6000 and propylene glycol monomethyl ether acetate. If the negative photoresist is coated at a thickness of about 50 um, the coating uniformity can be controlled to below 5%, ensuring the quality of exposure such that the thickness of electroplated copper meets requirements.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: May 9, 2023
    Assignee: Jiangsu Aisen Semiconductor Material Co., Ltd.
    Inventors: Wensheng Xiang, Kun Zhu, Lan Lu, Bing Zhang, Jianlong Zhao
  • Patent number: 11643600
    Abstract: A liquid crystal mixture applied in light modulating devices includes at least one compound selected from the group of compounds of formula I, at least one compound selected from the group of compounds of formula II and/or formula III, and at least one chiral compound. A light modulating device includes the liquid crystal mixture, where the light modulating device has reduced haze in the transparent state while increased opacity in the light scattering state.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: May 9, 2023
    Assignee: Smart Liquid Crystal Technologies Co., Ltd.
    Inventors: Hongwei Zhang, Hui Xu, Fei Wang, Jiuzhi Xue
  • Patent number: 11639331
    Abstract: A diketone oxime ester compound shown in formula I and a manufacturing method therefor, and a photo-curable composition using the compound of formula I as a photoinitiator. The composition has extremely high light sensitivity and relatively low yellowing resistance when applied to prepare a color filter for a light resistance device such as a display screen.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: May 2, 2023
    Assignee: INSIGHT HIGH TECHNOLOGY CO., LTD
    Inventors: Wenchao Zhao, Jiaqi Li, Chenlong Wang
  • Patent number: 11640111
    Abstract: A photosensitive resin composition including a poly(imide-benzoxazine) block copolymer, and a cured film. The poly(imide-benzoxazine) block copolymer included in the photosensitive resin composition enables the formation of a cured film having excellent mechanical and insulation even at a low temperature of less than 200° C.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: May 2, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Min Hyung Lee, Dai Seung Choi
  • Patent number: 11633948
    Abstract: Lithographic printing plates are provided by imagewise exposing negative-working lithographic printing plate precursors having one or more radiation-sensitive imageable layers, followed by contacting with a processing solution that contains up to 10 weight % of one or more compounds represented by Structure (I) shown as follows: R1—C(?O)—N(R2)—R3?? (I) wherein R1, R2, and R3 independently represent hydrogen or a substituted or unsubstituted hydrocarbon group, or two or three of R1, R2, and R3 are combined to form one or more cyclic rings, and the total number of carbon atoms in the Structure (I) molecule is at least 7 and up to and including 33. Both negative-working and positive-working lithographic precursors can be imaged and processed using this processing solution using one or more successive applications of the same or different processing solution. The processing solution can be derived from a corresponding processing solution concentrate that can also be used for replenishment.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: April 25, 2023
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Saija Werner, Stefanie Hansmann, Udo Dwars, Christopher D. Simpson
  • Patent number: 11634640
    Abstract: A liquid crystal composition includes at least one compound of general formula I, at least one compound of general formula II and at least one compound of general formula III. The liquid crystal composition has a higher optical anisotropy, the relatively large elastic constants K11 and K33 while maintaining a relatively high clearing point, an appropriate dielectric anisotropy and a better low-temperature intersolubility. A liquid crystal display device which includes the liquid crystal composition has advantages of a fast response, a high contrast and a wide temperature range, thereby having a good display effect and a large range of applicability.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: April 25, 2023
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Li Wang, Haibing Xu, Pengfei Li, Di He, Rui Jin
  • Patent number: 11634638
    Abstract: Provided are a liquid crystal composition which has excellent planarity in a case of being formed into a coating film and is also capable of forming a reflective layer having excellent diffuse reflectivity, a reflective layer that is formed using the liquid crystal composition, and a method for producing a reflective layer. Provided also is a copolymer that can be used as an alignment control agent for a liquid crystal compound.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: April 25, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Shunya Katoh, Keisuke Kodama, Yuko Suzuki
  • Patent number: 11629291
    Abstract: A liquid crystal composition contains: at least one compound of general formula I and at least one polymerizable compound of general formula II. Such a liquid crystal composition has a suitable optical anisotropy, a suitable dielectric anisotropy, and a better pretilt angle consistency while maintaining a relatively high clearing point, and the drop mura is good. When the liquid crystal composition is applied to a PSA liquid crystal display, the liquid crystal composition has an excellent display effect.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: April 18, 2023
    Assignee: Jiangsu Hecheng Display Technology Co., Ltd.
    Inventors: Wenyang Ma, Liwei Wang, Haibin Xu, Wenming Han, Wenqi Zhang
  • Patent number: 11629157
    Abstract: A series of 8-(bisphenylethynyl)-ester flexible multiple ring-containing fluoroboron pyrrole liquid crystal dyes are synthesized by introducing a diphenylethynyl rigid structure at position 8 of a boron-dipyrromethene core via a Sonogashira coupling reaction, and a flexible multiple ring such as bicyclohexane, or cholesterol is connected to the biphenylethynyl via an esterification reaction. The dye compounds all have maximum emission wavelengths in methylene chloride concentrated around 525 nm, present green fluorescence, and show good dichroic colour ratios and ordered parameters in E7 liquid crystal. The liquid crystal compounds are in a liquid crystal intermediate phase within the range of 100-280° C., and may be used for manufacturing liquid crystal display products, especially as guest dyes for guest-host mode liquid crystal displays. The response time can be improved and a rapid response effect achieved when the compounds are added to E7 liquid crystal and used for a guest-host display mode.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: April 18, 2023
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Xiaolian Li, Rouchen Pan
  • Patent number: 11619842
    Abstract: A liquid crystal capsule includes: a shell; and a liquid crystal molecule in the shell, wherein a critical surface tension of the shell is smaller than a critical surface tension of the liquid crystal molecule. Further, the liquid crystal molecule includes a nematic liquid crystal and the shell includes polytetramethyldisiloxane. The liquid crystal capsule also includes an additive in the shell and the additive has a critical surface tension smaller than that of the liquid crystal molecule.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: April 4, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyeong-Jin Kim, Ji-Na Jeon
  • Patent number: 11613701
    Abstract: A compound is represented by general formula (I), a liquid-crystal composition contains this compound, and devices are made using this liquid-crystal composition. Having a large refractive-index anisotropy ?n and a sufficiently high Tni, highly compatible with liquid-crystal compositions, and exhibiting a high dielectric anisotropy in the radio frequency range, the compound is a useful material for RF phase shifters, phased-array antennae, image recognition devices, distance meters, liquid-crystal displays, liquid-crystal lenses, and birefringent lenses for 3D image display, among other devices.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: March 28, 2023
    Assignee: DIC Corporation
    Inventors: Takaya Ikeuchi, Masanao Hayashi
  • Patent number: 11599022
    Abstract: Stabilized precursor solutions can be used to form radiation inorganic coating materials. The precursor solutions generally comprise metal suboxide cations, peroxide-based ligands and polyatomic anions. Design of the precursor solutions can be performed to achieve a high level of stability of the precursor solutions. The resulting coating materials can be designed for patterning with a selected radiation, such as ultraviolet light, x-ray radiation or electron beam radiation. The radiation patterned coating material can have a high contrast with respect to material properties, such that development of a latent image can be successful to form lines with very low line-width roughness and adjacent structures with a very small pitch.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: March 7, 2023
    Assignee: Inpria Corporation
    Inventors: Jason K. Stowers, Alan J. Telecky, Douglas A. Keszler, Andrew Grenville
  • Patent number: 11590751
    Abstract: A lithographic printing plate precursor has an image-recording layer on a hydrophilic support, wherein the image-recording layer includes a polymer particle including an addition polymerization resin having a hydrophilic structure and a crosslinking structure. A method for producing a lithographic printing plate uses the lithographic printing plate precursor. A polymer particle includes an addition polymerization resin having a hydrophilic structure and a crosslinking structure. A composition includes the polymer particle.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: February 28, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Shuji Hirano, Atsuyasu Nozaki
  • Patent number: 11584118
    Abstract: A lithographic printing plate precursor including a photopolymerisable coating and an overcoat layer provided on top of said layer, characterized in that the overcoat layer includes a compound comprising at least one moiety having a structure according to Formula (I): (I).
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: February 21, 2023
    Assignee: AGFA Offset BV
    Inventors: Nicolas Vriamont, Thomas Billiet, Johan Loccufier, Elke Dom
  • Patent number: 11578270
    Abstract: A side chain type polymer liquid crystalline compound with which a light absorption anisotropic film having a high alignment degree can be formed, which includes a liquid crystalline composition, a light absorption anisotropic film which is formed of the liquid crystalline composition, a laminate, and an image display device. A liquid crystalline composition contains a side chain type polymer liquid crystalline compound and a dichroic substance, the side chain type polymer liquid crystalline compound is a copolymer having repeating units 1 and 2, the repeating unit 1 has a mesogenic group and an electron-withdrawing group having a Hammett's substituent constant ?p of greater than 0 at a terminal of the mesogenic group, and the repeating unit 2 has a mesogenic group and a group having a Hammett's substituent constant ?p of 0 or less at a terminal of the mesogenic group.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: February 14, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Matsuyama, Wataru Hoshino, Teruki Niori
  • Patent number: 11579507
    Abstract: A method for producing a cholesteric liquid crystal layer is a method that can produce a cholesteric liquid crystal layer whose reflection surface is not parallel to a substrate surface by a simple method. The method includes: a step 1 of forming a composition layer satisfying a condition 1, a condition 2, or a condition 3 on a substrate, using a liquid crystal composition including a liquid crystal compound; and a step 2 of subjecting the composition layer to a treatment for cholesterically aligning the liquid crystal compound in the composition layer to form a cholesteric liquid crystal layer.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: February 14, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Keisuke Kodama, Shunya Katoh, Mitsuyoshi Ichihashi
  • Patent number: 11574810
    Abstract: A lithographic printing plate precursor including an image recording layer containing an infrared absorber represented by Formula I, on a support, and a method of producing a lithographic printing plate and a lithographic printing method using the lithographic printing plate precursor.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: February 7, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Kenjiro Araki, Mamoru Kuramoto
  • Patent number: 11567404
    Abstract: A lithographic printing plate precursor having an image-recording layer on a hydrophilic support, in which the image-recording layer includes an organic polymer particle, and the organic polymer particle is a reaction product obtained by at least reacting an aromatic polyvalent isocyanate compound having a structure represented by Formula PO and water, a method for making a lithographic printing plate having excellent printing resistance in the case of using an ultraviolet-curable ink in printing, a new organic polymer particle, and a resin composition including the organic polymer particle.
    Type: Grant
    Filed: December 8, 2019
    Date of Patent: January 31, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Atsuyasu Nozaki, Kenjiro Araki
  • Patent number: 11560010
    Abstract: An on-machine development lithographic printing plate precursor includes an image-recording layer on an aluminum support having an anode oxide film, wherein an end portion of the lithographic printing plate precursor has a shear droop shape, the image-recording layer contains a compound having a support adsorptive property, having a molecular weight of 1,000 or less, and not having an unsaturated double bond group in a molecule, and a content of the compound is substantially the same in a plane of the image-recording layer.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: January 24, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Akira Sakaguchi, Yuki Sakamoto, Mitsuhiro Fujita, Yusuke Namba
  • Patent number: 11560517
    Abstract: A photoreactive liquid crystal composition containing (A) a photoreactive polymer liquid crystal which includes a photoreactive side chain in which at least one type of reaction selected from (A-1) photocrosslinking and (A-2) photoisomerization occurs, and (B) a low molecular weight liquid crystal. An optical element or display element is formed having a liquid crystal cell including the photoreactive liquid crystal composition.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: January 24, 2023
    Assignees: UNIVERSITY OF HYOGO, NAGAOKA UNIVERSITY OF TECHNOLOGY, NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Tomoyuki Sasaki, Hiroshi Ono, Nobuhiro Kawatsuki, Kohei Goto