Patents Assigned to OJI HOLDINGS CORPORATION
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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
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Patent number: 11084886Abstract: An object of the invention is to provide a material comprising ultrafine cellulose fibers, having good dispersibility of fine particles in an aqueous medium containing ultrafine cellulose fibers. According to the invention, there is provided a material comprising ultrafine cellulose fibers, wherein the content of the ultrafine cellulose fibers is 80% by mass or more, and the haze value of a sample, which has been prepared by adding the material comprising ultrafine cellulose fibers to pure water to a solid concentration of 0.4% by mass, and stirring the mixture with a disperser under conditions of 1500 rpm and 5 minutes, is 20% or less.Type: GrantFiled: September 16, 2016Date of Patent: August 10, 2021Assignee: OJI HOLDINGS CORPORATIONInventors: Ikue Homma, Takayuki Shimaoka
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Publication number: 20210222367Abstract: It is an object of the present invention to provide an ultrafine cellulose fiber-containing composition having favorable dispersibility even in the presence of a specific organic solvent. The present invention relates to a cellulose fiber-containing composition comprising cellulose fibers having a fiber width of 1000 nm or less, water, and alcohol, wherein the alcohol is at least one type selected from monovalent primary alcohol, monovalent secondary alcohol, and polyhydric alcohol, and the dielectric constant of the cellulose fiber-containing composition at 25° C. is 55 or more and less than 80.Type: ApplicationFiled: December 12, 2017Publication date: July 22, 2021Applicant: OJI HOLDINGS CORPORATIONInventors: Rina TANAKA, Hayato FUSHIMI, Kazuo YAMANE
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Publication number: 20210222366Abstract: It is an object of the present invention to provide a composition comprising cellulose fibers having a fiber width of 1000 nm or less, the properties of which are maintained even after long-term storage.Type: ApplicationFiled: August 7, 2017Publication date: July 22, 2021Applicant: Oji Holdings CorporationInventors: Rina TANAKA, Koh SAKAI, Hirokazu SUNAGAWA
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Patent number: 11065850Abstract: It is an object of the present invention to provide a laminate excellent in interlayer adhesion properties. The present invention relates to a laminate comprising: a fiber layer formed of cellulose fibers having a fiber width of 1000 nm or less; a resin layer; and an adhesive layer provided between the fiber layer and the resin layer.Type: GrantFiled: September 14, 2016Date of Patent: July 20, 2021Assignee: OJI HOLDINGS CORPORATIONInventors: Hirokazu Sunagawa, Hayato Fushimi, Go Banzashi
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Patent number: 11066571Abstract: It is an object of the present invention to provide a pattern forming method capable of easily forming a phase-separated structure with high accuracy, even in the case of widening the applicable range of a pattern size. The present invention relates to a pattern forming method comprising: applying an under coating agent onto a substrate, and applying a self-assembly composition for pattern formation to the surface of the substrate, onto which the under coating agent has been applied, and then forming a self-assembly film according to self-assembly phase separation, wherein the self-assembly composition for pattern formation comprises a block copolymer comprising a polymerization unit (a) having at least one selected from a structure represented by a formula (103) and a structure represented by a formula (104), and a polymerization unit (b) having a structure represented by a formula (105).Type: GrantFiled: May 30, 2017Date of Patent: July 20, 2021Assignee: OJI HOLDINGS CORPORATIONInventors: Kazuyo Morita, Kimiko Hattori
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Publication number: 20210207326Abstract: An object of the present invention is to provide a laminate having a fiber layer comprising ultrafine cellulose fibers and a resin layer, wherein the two layers have more excellent adhesion properties. The present invention relates to a laminate having at least one fiber layer comprising cellulose fibers with a fiber width of 1000 nm or less, and at least one resin layer that is contacted with one surface of the fiber layer, wherein the resin layer has an adhesion aid.Type: ApplicationFiled: January 13, 2017Publication date: July 8, 2021Applicant: OJI HOLDINGS CORPORATIONInventors: Hayato FUSHIMI, Hirokazu SUNAGAWA
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Patent number: 11053324Abstract: 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: GrantFiled: May 16, 2014Date of Patent: July 6, 2021Assignee: OJI HOLDINGS CORPORATIONInventors: Yuichi Noguchi, Yasutomo Noishiki, Ikue Homma
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Patent number: 11034806Abstract: It is an object of the present invention to provide a resin composite that is excellent in water resistance and is capable of exerting sufficient strength even under wet conditions. The present invention relates to a resin composite comprising a resin, fibers having an ionic functional group, and a polyvalent ion. The fibers having an ionic functional group are preferably cellulose fibers having a fiber width of 1000 nm or less.Type: GrantFiled: February 3, 2017Date of Patent: June 15, 2021Assignee: OJI HOLDINGS CORPORATIONInventors: Yoshiyuki Tsutsumi, Koh Sakai, Yuichi Noguchi
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Patent number: 11027516Abstract: A body wiping sheet (1) comprising two surface layers (2, 3) each comprising a non-woven fabric, and a water-absorbent polymer layer that contains a water-absorbent polymer and that is disposed between the two surface layers (2, 3) in a stacked manner.Type: GrantFiled: June 28, 2017Date of Patent: June 8, 2021Assignee: OJI HOLDINGS CORPORATIONInventors: Mizue Takagi, Asami Kawaguchi, Ayako Takahashi
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Patent number: 11016222Abstract: An antireflective structure having multiple light absorbing units each of which has a bottomed cylindrical shape, the light absorbing unit includes a bottom portion including an outer edge portion having a substantially circular shape, and a wall portion rising along the outer edge portion, and an upper side of the bottom portion is an opening portion, the average height of the wall portions being greater than or equal to 5 ?m and smaller than or equal to 100 ?m, an average opening diameter of the opening portions being greater than or equal to 1 ?m and smaller than or equal to 10 ?m, and a pinching structure configured with minute projections that stand in a group with an average pitch greater than or equal to 10 nm and smaller than or equal to 500 nm is formed on the bottom portion.Type: GrantFiled: January 19, 2018Date of Patent: May 25, 2021Assignee: Oji Holdings CorporationInventors: Kotaro Dai, Kei Shinotsuka
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Publication number: 20210149307Abstract: The present invention provides an underlayer film-forming composition in which the material used is dissolved in an organic solvent, and which is capable of forming an underlayer film that is not prone to cracking under the atmosphere and by heat treatment at a relatively low temperature and which is increasing the coated film residual rate upon forming the underlayer film. An underlayer film-forming composition for forming an underlayer film used for pattern formation, which comprises a copolymer and an organic solvent; the copolymer comprises a polymer moiety (a) and a polymer moiety (b); the polymer moiety (a) comprises a saccharide derivative moiety; the saccharide derivative moiety is at least one of a pentose derivative moiety or a hexose derivative moiety; and the polymer moiety (b) comprises no saccharide derivative moiety.Type: ApplicationFiled: December 20, 2017Publication date: May 20, 2021Applicant: OJI HOLDINGS CORPORATIONInventors: Kimiko HATTORI, Kazuyo MORITA
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Publication number: 20210134531Abstract: In a metallized film 1, n electrode portions 20, which are metal deposition portions, are formed in parallel on one surface of a dielectric film 2 having a film width corresponding to n capacitor elements, n being an even number of 2 or more. Each electrode portion 20 is provided with a plurality of inclined margins 31 and 32, which are non-metal deposition portions extending at an angle with respect to a film width direction, at a regular interval in a film length direction. Across a center line Lc virtually extending in the film length direction at the center in the film width direction, the inclined margins 31 of the electrode portion 20 located on one side in the film width direction, and the inclined margins 32 of the electrode portion 20 located on the other side in the film width direction are inclined in opposite directions so as to be line-symmetric with respect to the center line Lc.Type: ApplicationFiled: August 14, 2018Publication date: May 6, 2021Applicant: OJI HOLDINGS CORPORATIONInventors: Kazuyuki HIATE, Akihiro KAKEHI, Katsuyuki MORITAKA, Yoshikazu FUJISHIRO, Masahiro NAKATA
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Publication number: 20210130762Abstract: A cell sheet-forming member provided with a surface for forming a cell sheet, wherein the surface comprises a plurality of flat parts and a plurality of concavo-convex parts. Each flat part has a shape extending along a first direction and the plurality of the flat parts are aligned along a second direction intersecting with the first direction over the entire surface. Either of convex parts or concave parts have a stepped structure and individual concave and convex parts include a plurality of the stepped structures which fill gaps between flat parts adjacent to each other, wherein the pitch of said stepped structures is from 100 nm to 10 ?m inclusive.Type: ApplicationFiled: August 22, 2018Publication date: May 6, 2021Applicant: Oji Holdings CorporationInventors: Hisako TOKUNO, Koki HONGO, Kei SHINOTSUKA
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Publication number: 20210122932Abstract: It is an object of the present invention to provide a cellulose-containing composition having excellent coating suitability, a production method thereof, and a film. According to the present invention, provided is a cellulose-containing composition comprising cellulose fibers having a fiber width of 1000 nm or less and protein, wherein the protein includes an enzyme, the content of the protein is 1×10?3 parts by mass or less with respect to 1 part by mass of the cellulose fibers, and when the cellulose-containing composition having a solid concentration of 0.4% by mass is obtained, the viscosity of the cellulose-containing composition measured under conditions of 25° C. and a rotation number of 3 rpm is 10 mPa·s or more and 11000 mPa·s or less.Type: ApplicationFiled: July 13, 2018Publication date: April 29, 2021Applicant: OJI HOLDINGS CORPORATIONInventors: Moe MIZUKAMI, Hayato FUSHIMI, Hirokazu SUNAGAWA
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Patent number: 10982032Abstract: An object of the present invention is to provide a self-assembly composition for pattern formation, which is capable of forming a favorable phase-separated structure even in the case of forming a large size pattern. In addition, another object of the present invention is to provide a self-assembly composition for pattern formation, which is capable of forming a pattern by a simple process, with no need for preparation of a under layer, etc., upon formation of a fine pattern structure. The present invention relates to a self-assembly composition for pattern formation, which comprises a block copolymer comprising a polymerization unit (a) comprising two or more units consisting of at least one type selected from a glucose unit and a xylose unit, and a polymerization unit (b) comprising two or more units consisting of at least one type selected from an aromatic ring-containing unit, a silicon-containing unit and a metal-containing unit.Type: GrantFiled: September 29, 2016Date of Patent: April 20, 2021Assignee: OJI HOLDINGS CORPORATIONInventor: Kazuyo Morita