Patents Examined by Ruiyun Zhang
  • Patent number: 10689575
    Abstract: The present invention is to provide an optical film having optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. An optical film of the present invention is an optical film having at least an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and an extrapolated glass transition starting temperature of the optically anisotropic layer is 70° C. or higher.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: June 23, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Takahiro Ohno, Makoto Ishiguro, Yoshiaki Hisakado, Hiroshi Sato, Keita Takahashi, Naozumi Shiraiwa, Taiji Katsumata, Hiroshi Matsuyama
  • Patent number: 10683120
    Abstract: Packaging for sterile packaging a product, comprising a bag shaped body with two main surfaces that are mutually gas tight at at least part of their peripheral edges comprising a gas non-permeable material. At least part of the main surfaces comprises a gas permeable material part of a pore size that locks out harmful organisms and comprises a gas tight material part that is positioned between two peripheral edges that extend in a longitudinal direction and between the gas permeable material part and a peripheral edge that extends in a transverse direction.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: June 16, 2020
    Assignee: WIPAK B.V.
    Inventors: Jouni Matias Vikman, Paavo Petteri Muhonen, Kai Nieber, Michael Stephanus Terwolbeck
  • Patent number: 10676672
    Abstract: The present application relates to a liquid crystal aligning agent, a liquid crystal alignment film and a method for producing the same, as well as a liquid crystal display device. The liquid crystal aligning agent comprises (i) a first polyamic acid having a photoreactive group without a liquid crystal group; (ii) a second polyamic acid having a liquid crystal group without a photoreactive group; (iii) a third polyamic acid having both a liquid crystal group and a photoreactive group; (iv) a fourth polyamic acid having neither a photoreactive group nor a liquid crystal group. The liquid crystal display device using the liquid crystal alignment film formed by the liquid crystal aligning agent provided by the present disclosure has a high display contrast and an improved AC residual image.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: June 9, 2020
    Assignees: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICO-ELECTRONICS CO., LTD.
    Inventors: Jieliang Li, Chikaaki Mizikuchi
  • Patent number: 10675388
    Abstract: The present disclosure describes a medical device assembly comprising an expandable medical device wrapped with an improved constraining sleeve. The sleeve in accordance with various embodiments of the present disclosure is thin walled and translucent, having reduced edge sharpness. The sleeve in accordance with the present disclosure exhibits resistance to ripping and delamination. Various embodiments of the present disclosure provide methods of making sheet material usable for constraining sleeves from flattened film tubes. Methods for making improved constraining sleeves and medical device assemblies that comprise an improved constraining sleeve are also disclosed herein.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: June 9, 2020
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Russell L. Jacoby, Andrew W. Sloan
  • Patent number: 10670773
    Abstract: The retardation film of the present invention contains a thermoplastic resin and is constituted of a single layer. A value of wavelength dispersion (R450/R550) that is a ratio of a retardation R450 at a wavelength of 450 nm and a retardation R550 at a wavelength of 550 nm is 0.70 or more and 0.85 or less; and a photoelastic coefficient is 14×10?12 Pa?1 or less.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: June 2, 2020
    Assignees: NITTO DENKO CORPORATION, Mitsubishi Chemical Corporation
    Inventors: Shingo Namiki, Yuuichi Hirami, Hisatoshi Uehara, Hiroyuki Hayashi, Takashi Shimizu, Hiroshi Sumimura, Nao Murakami
  • Patent number: 10670787
    Abstract: As a liquid crystal cured film that is small in amount of decrease in phase difference value which decrease is caused in a case where the liquid crystalline cured film is exposed to a high-temperature environment, provided is a liquid crystal cured film containing a polymerizable liquid crystal compound that is polymerized, the liquid crystal cured film having a maximum absorption at a wavelength in a range of not less than 300 nm and not more than 380 nm, and satisfying the following Formula (Y): (1?P?/P0)×100?73 . . . (Y).
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: June 2, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tatsuaki Kasai, Nobuyuki Hatanaka
  • Patent number: 10658433
    Abstract: A display device, an electronic device, or a lighting device that is unlikely to be broken is provided. A flexible first substrate and a flexible second substrate overlap with each other with a display element provided therebetween. A flexible third substrate is bonded on the outer surface of the first substrate, and a flexible fourth substrate is bonded on the outer surface of the second substrate. The third substrate is formed using a material softer than the first substrate, and the fourth substrate is formed using a material softer than the second substrate.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: May 19, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takuya Kawata, Akihiro Chida
  • Patent number: 10655066
    Abstract: The problem that the present invention is to solve is to provide an optical film that has less alignment defects and is less liable to cause variation in the optical characteristics when placed in a high temperature state. The present invention provides an optical film containing a structural unit derived from a specific compound, that is, an optical film containing a structural unit derived from a compound represented by the general formula (I), which has less alignment defects and is less liable to cause variation in the optical characteristics when placed in a high temperature state, and also provides a display device including the optical film.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: May 19, 2020
    Assignee: DIC Corporation
    Inventors: Masahiro Horiguchi, Sayaka Nose, Yasuhiro Kuwana, Kouichi Endo
  • Patent number: 10655062
    Abstract: A liquid crystal composition having one or more compounds represented by formula I, one or more compounds represented by formula II and one or more compounds represented by formula III: The liquid crystal composition has a good stability against light and heat and a lower viscosity, and can achieve a wider refractive index and higher clearing point by the adjustment the ratio of the monomers. In particular, the liquid crystal composition has a higher light transmittance, allowing a display device to have a higher brightness or an energy saving effect.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: May 19, 2020
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD
    Inventors: Ke-Lun Shu, Mingxia Wang, Huan Liu, Wenxiao Xing, Zhengqiang Li, Yiping Wang, Yongfeng Bao, Guoliang Yun
  • Patent number: 10658597
    Abstract: An organic electric element includes a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode. The organic material layer includes the compound represented by Formula 1. When the organic electric element includes the compound in the organic material layer, luminous efficiency, stability, and life span can be improved.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: May 19, 2020
    Assignee: DUK SAN NEOLUX CO., LTD.
    Inventors: Junghwan Park, Sunhee Lee, Wonsam Kim, Jaewan Jang, Hyeryeong Kim, Yuri Kim, Gyumin Lee, Yongwook Park
  • Patent number: 10647816
    Abstract: A liquid crystal display device having excellent liquid crystal vertical alignment properties, good transparency when a voltage is applied and good scattering properties when no voltage is applied, and good adhesion with the liquid crystal layer. The liquid crystal display device has a liquid crystal layer formed by irradiating and curing with ultraviolet rays a liquid crystal composition containing a liquid crystal and a polymerizable compound disposed between a pair of substrates provided with electrodes, and at least one of the substrates is provided with a liquid crystal alignment film to vertically align a liquid crystal. The liquid crystal composition contains a compound represented by the formula [1], and the liquid crystal alignment film is obtained from a liquid crystal alignment treating agent containing a polymer having a side chain structure represented by the formula [2-1] or formula [2-2], and a side chain structure represented by the formula [3].
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 12, 2020
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Kazuyoshi Hosaka, Noritoshi Miki, Hiroyuki Omura, Jun Hashimoto
  • Patent number: 10641938
    Abstract: According to the present invention, there are provided a film forming composition, which contains a polymer having a repeating unit represented by General Formula (I) and a curable compound, an optical film having a film formed of the composition, a hardcoat film, a polarizing plate, and a method for manufacturing a hydrophilized hardcoat film. In General Formula (I), R1 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, L represents an ester bond, an ether bond, a phenylene group, or an amide bond, R2 and R4 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, or a halogenated alkyl group having 1 to 20 carbon atoms, and R3 represents a hydrogen atom or a substituent.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: May 5, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Akio Tamura, Taketo Otani, Reiko Fukagawa
  • Patent number: 10640688
    Abstract: The present invention relates to a pressure-sensitive adhesive composition, a protective film for polarizers, which includes a cured product of the pressure-sensitive adhesive composition, a polarizer, and a liquid crystal display (LCD). In the present invention, a pressure-sensitive adhesive showing excellent endurance reliability in high-temperature and/or high-humidity conditions and having superior physical properties such as cuttability, re-peeling property, and workability can be provided. In particular, it is possible to provide the pressure-sensitive adhesive composition which can prevent light leakage that may occur in an LCD, even when being applied to a film having a low stress optical coefficient.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: May 5, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Se Ra Kim, Kee Young Kim, In Cheon Han
  • Patent number: 10634957
    Abstract: The present disclosure discloses a post spacer, which is applied to a liquid crystal display panel. The post spacer has a material having a structure as represented by Formula 1, wherein X includes at least one of groups represented by Formulae 2-1 to 2-5; Y includes at least one of groups represented by Formulae 3-1 and 3-2; at least one of the X and the Y has a molecular chain end having a group capable to chemically cross-link with materials of alignment layers; and at least one of the X and the Y has a side chains having a group capable to generate a hydrogen bond or intermolecular force with a material of liquid crystal molecules. The present disclosure also discloses a liquid crystal display panel having the post spacers described above and a method of manufacturing the same.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: April 28, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Yong Yang
  • Patent number: 10634833
    Abstract: As a liquid crystal cured film that is small in amount of decrease in phase difference value which decrease is caused in a case where the liquid crystalline cured film is exposed to a high-temperature environment, provided is a liquid crystal cured film containing a polymerizable liquid crystal compound that is polymerized, the liquid crystal cured film having a maximum absorption at a wavelength in a range of not less than 300 nm and not more than 380 nm, and satisfying the following Formula (Y): (1?P?/P0)×100?73 . . . (Y).
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: April 28, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tatsuaki Kasai, Nobuyuki Hatanaka
  • Patent number: 10619043
    Abstract: A methacrylic resin composition containing 10 to 99 parts by mass of a methacrylic resin (A) containing 80% by mass or more of a methyl methacrylate unit, and 90 to 1 part by mass of a block copolymer (B) containing 10 to 60% by mass of a methacrylic acid ester polymer block (b1) and 90 to 40% by mass of an acrylic acid ester polymer block (b2), where the total of the methacrylic resin (A) and the block copolymer (B) is 100 parts by mass, where a weight-average molecular weight Mw(A) of the methacrylic resin (A), a maximum weight-average molecular weight Mw(b1) of the methacrylic acid ester polymer block (b1) and a maximum weight-average molecular weight Mw(b2) of the acrylic acid ester polymer block (b2) satisfy (1): 0.5?Mw(A)/Mw(b1)?2.5 and (2): 40000?Mw(b2)?120000.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: April 14, 2020
    Assignee: KURARAY CO., LTD.
    Inventors: Hiroshi Ozawa, Toru Takahashi
  • Patent number: 10620474
    Abstract: The present invention provides, by using a photo-alignment film, a liquid crystal display device in which a good voltage holding ratio is retained for a long period of time and occurrence of image sticking and stain in a display screen is prevented. The liquid crystal display device of the present invention includes an active matrix liquid crystal panel and a backlight, the liquid crystal panel including a liquid crystal layer, a pair of substrates that sandwich the liquid crystal layer in between, and an alignment film disposed on a liquid crystal layer side surface of each of the substrates, each alignment film being a photo-alignment film formed from a material that exhibits a photo-alignment characteristic and containing carboxyl groups on the liquid crystal layer side, the liquid crystal layer containing a liquid crystal material and a nitrobenzene derivative.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: April 14, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masanobu Mizusaki
  • Patent number: 10620481
    Abstract: According to the invention, provided are an optical alignment film composition with which an optical alignment film having excellent aligning properties can be produced, and an optical alignment film, an optical laminate, and an image display device produced using the optical alignment film composition. An optical alignment film composition according to the invention contains a polymer A which has a constitutional unit a1 including a cinnamate group and a low-molecular-weight compound B which has a cinnamate group and has a lower molecular weight than the polymer A.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: April 14, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Taku Wakita, Ayako Muramatsu, Chie Moriya, Yoshiaki Takada, Makoto Ishiguro
  • Patent number: 10619080
    Abstract: The present invention provides an adhesive composition for optical use, including a polyester-based urethane acrylate oligomer, an acrylate-based monomer, a photoinitiator, and a Anti-hydrolysis agent, and an optical device equipped with an adhesive layer including photocured products of the adhesive composition for optical use.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: April 14, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jang Soon Kim, Kyung Jun Yoon, Hong Beom Yoon, Min Kyeong Pyo, Jin Young Huh
  • Patent number: 10620352
    Abstract: A circularly polarized light separating film including a resin layer containing a polymer of a polymerizable liquid crystal compound, wherein the polymerizable liquid crystal compound contains a main-chain mesogen and a side-chain mesogen bonded to the main-chain mesogen in a molecule of the polymerizable liquid crystal compound, and the polymer has cholesteric regularity.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: April 14, 2020
    Assignee: ZEON CORPORATION
    Inventor: Hiroshi Yakabe