Patents Assigned to OJI HOLDINGS CORPORATION
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Publication number: 20220074143Abstract: The present invention is intended to provide ultrafine cellulose fibers capable of enhancing the transparency of an ultrafine cellulose fiber-dispersed solution having phosphorous acid groups. The present invention relates to a method for producing cellulose fibers, comprising: mixing a compound having a phosphorous acid group and/or a salt thereof and urea and/or a urea derivative into a cellulose raw material to obtain a phosphorous acid esterified cellulose raw material, and performing a fibrillation treatment on the phosphorous acid esterified cellulose raw material to obtain cellulose fibers having a fiber width of 1000 nm or less and having a phosphorous acid group, wherein, in obtaining the phosphorous acid esterified cellulose raw material, the decomposition percentage of the urea and/or the urea derivative is set to be 90% or less.Type: ApplicationFiled: December 25, 2019Publication date: March 10, 2022Applicant: OJI HOLDINGS CORPORATIONInventors: Yuichi NOGUCHI, Mengchen ZHAO, Yusuke TODOROKI
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Patent number: 11266539Abstract: An adhesive tape (1) comprises a base material layer, an adhesive layer, and a release material layer, wherein two edges (11 and 12) extending in the longitudinal direction of the adhesive tape include parallel portions (11a and 12a), the length of one of the two edges (11 and 12) is greater than the length of the other, the ends of the two edges (11 and 12) are connected to the ends of two other edges (13 and 14), and two angles formed between the longer edge of the two edges (11 and 12) extending in the longitudinal direction and the two other edges (13 and 14) are acute angles.Type: GrantFiled: January 19, 2017Date of Patent: March 8, 2022Assignee: OJI HOLDINGS CORPORATIONInventors: Mariko Sugaya, Asami Oda, Ayako Shirai
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Publication number: 20220049278Abstract: The present invention provides a method for efficiently producing ethanol from a lignocellulosic raw material. More specifically, the present invention provides a method for producing ethanol from a lignocellulosic raw material, which comprises a step of performing multiple parallel fermentation while continuously or intermittently adding an additional saccharification enzyme to a fermentation liquid comprising a lignocellulosic raw material, a saccharification enzyme and a yeast so that the physical property value of the fermentation liquid itself is maintained within a preset range.Type: ApplicationFiled: September 10, 2019Publication date: February 17, 2022Applicants: ENEOS Corporation, Oji Holdings CorporationInventors: Yuichi TAKAHASHI, Kohei IDE, Masahiro NIWA, Miyuki KANEZAWA, Shoichi IKEMIZU, Atsushi FURUJO, Naoya AZUMI, Akira TSUKAMOTO, Shingo SEKIZAWA
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Patent number: 11243334Abstract: An anti-reflection structure having multiple bottomed tubular light absorption units that each have a bottom part having a substantially circular outer edge part and a wall part that is arranged upright along the outer edge part, an opening being formed above the bottom part, the anti-reflection structure satisfying specific conditions.Type: GrantFiled: August 22, 2018Date of Patent: February 8, 2022Assignee: Oji Holdings CorporationInventors: Satoru Hirama, Kei Shinotsuka
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Publication number: 20220024826Abstract: Provided is fibrous cellulose used for producing a concrete-pump pressure-feeding primer containing calcium carbonate powder, which is excellent in a dispersion stability and a pressure-feeding property. The fibrous cellulose is used for producing the concrete-pump pressure-feeding primer through mixing with the calcium carbonate powder. The fibrous cellulose contains ultrafine fibrous modified cellulose which has an ionic group and has a fiber width of 1,000 nm or less.Type: ApplicationFiled: December 6, 2019Publication date: January 27, 2022Applicant: OJI HOLDINGS CORPORATIONInventors: Rina TANAKA, Yoshiyuki TSUTSUMI, Hiroki YAMAMOTO
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Publication number: 20220002442Abstract: An object of the present invention is to provide ultrafine fibrous cellulose capable of exhibiting excellent coating suitability when added to paint. The present invention relates to fibrous cellulose having a fiber width of 1,000 nm or less, in which, when the fibrous cellulose is dispersed in water to form a dispersion liquid having a viscosity of 2,500 mPa·s at 23° C.Type: ApplicationFiled: October 16, 2019Publication date: January 6, 2022Applicant: OJI HOLDINGS CORPORATIONInventors: Akihiro TANAKA, Hayato FUSHIMI
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Publication number: 20220002059Abstract: A packaging bag includes a first face including a first edge disposed on a first side of an opening; a second face facing the first face and including a second edge disposed on a second side of the opening; and a cushion in an expandable sheet form and being suspended between the first edge and the second edge, and in which a plurality of slits extending in a direction intersecting a suspension direction are provided in a staggered manner, wherein a percentage of a basis weight of a sheet material forming the cushion with respect to a basis weight of a sheet material forming the first face and the second face is 55 to 80%.Type: ApplicationFiled: November 12, 2019Publication date: January 6, 2022Applicant: OJI HOLDINGS CORPORATIONInventor: Yoshiyuki ASAYAMA
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Publication number: 20210395494Abstract: Provided are a fine fibrous cellulose-containing composition, and a method for manufacturing the same, which are capable of reducing the viscosity of a fine fibrous cellulose dispersion liquid without changing the concentration of fine fibrous cellulose. The fine fibrous cellulose-containing composition contains fine fibrous cellulose having a fiber width of 1,000 nm or less, an enzyme-derived protein, and a protease or a chlorine-containing oxo acid or a salt thereof.Type: ApplicationFiled: October 25, 2019Publication date: December 23, 2021Applicant: OJI HOLDINGS CORPORATIONInventors: Moe MIZUKAMI, Hayato FUSHIMI, Hirokazu SUNAGAWA
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Patent number: 11142618Abstract: A biaxially stretched polypropylene film including a polypropylene resin and satisfying the following: (a) the crystallite size Sa, which is determined using the Scherrer equation from the full width at half maximum of the ?-crystal (040) plane reflection peak as measured by wide-angle x-ray diffraction after treatment for 200 hours at 105° C., is not more than 12.9 nm; and (b) the planar orientation coefficient ?Pa, which is calculated from the birefringence values ?Nyz and ?Nxz with respect to the thickness direction as determined by optical birefringence measurement after treatment for 200 hours at 105° C., is at least 0.013 (?Pa=(?Nyz+?Nxz)/2).Type: GrantFiled: September 22, 2017Date of Patent: October 12, 2021Assignee: Oji Holdings CorporationInventors: Takeshi Tominaga, Michiko Sueyoshi, Yoshimune Okuyama, Masahiro Nakata, Tadakazu Ishiwata
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Publication number: 20210310194Abstract: Provided is a gas barrier laminate that is simple to produce and has excellent water vapor barrier properties and gas barrier properties. Also provided are a gas barrier laminate further excellent in recyclability and heat sealing properties, and a method for producing it. The gas barrier laminate has a water vapor barrier layer and a gas barrier layer in that order on at least one surface of a paper support, wherein the water vapor barrier layer contains a layered inorganic compound, a cationic resin and an anionic binder, the aspect ratio of the layered inorganic compound is 50 or more, the thickness of the layered inorganic compound is 200 nm or less, the content of the layered inorganic compound is 0.1 to 800 parts by mass relative to 100 parts by mass of the anionic binder, and the gas barrier layer contains a water-soluble polymer. The invention is also a method for producing the gas barrier material by coating.Type: ApplicationFiled: October 10, 2019Publication date: October 7, 2021Applicant: OJI HOLDINGS CORPORATIONInventors: Masahiro TSURUHARA, Tomofumi ISOZAKI, Yasutomo NOISHIKI, Yuta SHAMOTO
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Publication number: 20210301095Abstract: The purpose of the present invention is to provide a composite sheet in which the dimension stability when it is tensed is high and the appearance deterioration and the yellowness change are suppressed. The present invention relates to a sheet comprising; cellulose fibers having a fiber width of 1000 nm or less and having a phosphoric acid group or a phosphoric acid group-derived substituent; and a polyvinyl alcohol-based resin, wherein the sheet has a tensile elastic modulus of 3.4 GPa or more.Type: ApplicationFiled: July 7, 2017Publication date: September 30, 2021Applicant: Oji Holdings CorporationInventors: Koh SAKAI, Hayato FUSHIMI, Hirokazu SUNAGAWA
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Publication number: 20210284755Abstract: Objects of the present invention are to provide a phosphoric acid-esterified fine cellulose fiber of which slurry shows superior transparency, and to provide a method for producing a phosphorylated fine cellulose fiber showing superior transparency with good efficiency and high yield. According to the present invention, there is provided a phosphoric acid-esterified fine cellulose fiber, of which 0.2 mass % aqueous dispersion shows a solution haze of 15% or lower.Type: ApplicationFiled: May 28, 2021Publication date: September 16, 2021Applicant: OJI HOLDINGS CORPORATIONInventors: Yuichi NOGUCHI, Yasutomo NOISHIKI, Ikue HOMMA
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Patent number: 11118103Abstract: An object of the present invention is to provide a salt water thickener that uniformly (favorably) disperses ultrafine cellulose fibers even in a liquid containing a salt (electrolyte). The salt water thickener comprises ultrafine cellulose fibers and a water-soluble polymer and can thereby uniformly disperse the ultrafine cellulose fibers even in a liquid containing a salt. The salt water thickener of the present invention is uniformly dispersed even in a liquid containing a salt and therefore exerts a high viscosity. The salt water thickener of the present invention can also be used as an additive for a fluid. The salt water thickener of the present invention can be used for purposes, for example, subterranean formation processing.Type: GrantFiled: October 13, 2015Date of Patent: September 14, 2021Assignee: OJI HOLDINGS CORPORATIONInventors: Ikue Homma, Takayuki Shimaoka, Moe Mizukami, Takuri Ozaki, Yuichi Noguchi, Mitsuru Tsunoda
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Patent number: 11117996Abstract: It is an object of the present invention to provide a self-assembly composition for pattern formation having a wide range of applicable pattern size and being capable of forming a favorable phase-separated structure.Type: GrantFiled: February 27, 2017Date of Patent: September 14, 2021Assignee: OJI HOLDINGS CORPORATIONInventors: Kazuyo Morita, Kimiko Hattori
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Publication number: 20210275407Abstract: The present invention is intended to provide an ultrafine cellulose fiber-containing wet sheet, which is easily handled upon the use thereof and is excellent in terms of adhesiveness to the skin. The present invention relates to a sheet comprising cellulose fibers having a fiber width of 1000 nm or less and water, wherein the sheet is gelatinous, the cellulose fibers have ionic substituents, the water content percentage is 70% by mass or more with respect to the total mass of the sheet, and the tensile strength is 0.08 MPa or more.Type: ApplicationFiled: January 8, 2019Publication date: September 9, 2021Applicant: OJI HOLDINGS CORPORATIONInventors: Emi AIZAWA, Koh SAKAI
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Patent number: 11111631Abstract: It is an object of the present invention to provide a method for producing ultrafine fibrous cellulose, which is capable of efficiently obtaining ultrafine fibrous cellulose having phosphoric acid groups with a high yield. The present invention relates to a method for producing fibrous cellulose having a fiber width of 1000 nm or less, comprising: a (A) of introducing phosphoric acid groups into cellulose fibers to form crosslinked structures via the phosphoric acid groups, thereby obtaining crosslinked phosphorylated cellulose fibers, a (B) of breaking some or all of the crosslinked structures to obtain crosslink-broken phosphorylated cellulose fibers, and a (C) of performing a mechanical treatment on the crosslink-broken phosphorylated cellulose fibers to obtain fibrous cellulose having a fiber width of 1000 nm or less, wherein, in the (A), crosslinked structures in an amount of 0.05 mmol/g or more and 2.Type: GrantFiled: March 10, 2020Date of Patent: September 7, 2021Assignee: OJI HOLDINGS CORPORATIONInventors: Yuichi Noguchi, Ikue Homma, Yusuke Matsubara
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Publication number: 20210268821Abstract: Disclosed is a heat-sensitive recording material comprising an undercoat layer and a heat-sensitive recording layer formed in this order on a support, the undercoat layer containing hollow plastic particles and a binder, the heat-sensitive recording layer containing a leuco dye and a developer, and the heat-sensitive recording material having an elastic modulus of 200 N/mm2 or less as measured by a nanoindentation method.Type: ApplicationFiled: June 27, 2019Publication date: September 2, 2021Applicant: Oji Holdings CorporationInventors: Kazuyuki SAKAMOTO, Kentaro MOROFUJI, Takashi TAKEMURA
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Publication number: 20210253744Abstract: It is an object of the present invention to provide a fluffed cellulose having totally new properties that have not conventionally existed, and a cellulose fiber-containing material capable of realizing the same. The present invention relates to a cellulose fiber-containing material comprising cellulose fibers having anionic groups, wherein the yield of the cellulose fiber-containing material measured by the following measurement method is 50% by mass or more, the cellulose fiber-containing material has organic onium ions as counterions of the anionic groups, and the organic onium ions satisfy a predetermined condition.Type: ApplicationFiled: September 5, 2019Publication date: August 19, 2021Applicant: OJI HOLDINGS CORPORATIONInventors: Yuichi NOGUCHI, Mengchen ZHAO, Yusuke TODOROKI
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Publication number: 20210253830Abstract: It is an object of the present invention to provide an ultrafine cellulose fiber-containing composition, regarding which an ultrafine cellulose fiber-dispersed organic solvent slurry can exhibit high viscosity and high transparency. The present invention relates to a cellulose fiber-containing composition comprising cellulose fibers with a fiber width of 1000 nm or less having anionic groups, and metal ions, wherein the cellulose fiber-containing composition comprising organic onium ions as counterions of the anionic groups, and when a solid in the cellulose fiber-containing composition is converted to an absolute dry solid, the content of the metal ions in the absolute dry solid is 80 ppm or more and 700 ppm or less.Type: ApplicationFiled: August 28, 2019Publication date: August 19, 2021Applicant: OJI HOLDINGS CORPORATIONInventors: Mengchen ZHAO, Yusuke TODOROKI, Yuichi NOGUCHI
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Publication number: 20210246230Abstract: The present invention provides a method of producing phosphoric acid crosslinked starch, including adding phosphorus oxychloride sequentially to raw starch slurry under a condition of pH 9 to 12 to cause the raw starch to undergo a phosphoric acid crosslinking reaction, and controlling the pH by sequentially adding an alkaline solution, wherein concentration of the alkaline solution is increased stepwise or continuously between start and end of the phosphoric acid crosslinking reaction. By the production method of the present invention, phosphoric acid crosslinked starch having a low phosphorus content and a high resistant starch content (for example, pea-derived phosphoric acid crosslinked starch, which has a resistant starch content of 80% or more according to a resistant starch measurement method of AOAC official method 2002.02 and a phosphorus content of 0.5% or less) can be obtained.Type: ApplicationFiled: June 14, 2019Publication date: August 12, 2021Applicant: OJI HOLDINGS CORPORATIONInventors: Fumihiko SANO, Kazuya IKESHIMA, Akiko ASANO, Akiko TAMAGAWA