Patents Assigned to DAICEL CORPORATION
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Publication number: 20240247133Abstract: A cellulose acetate resin composition may include a cellulose acetate (A) having a total degree of acetyl substitution of 2.60 or less; a filler (B); and a plasticizer (C). The filler (B) may be selected from the group consisting of (b1) a predetermined inorganic compound, (b2) a predetermined metal salt, (b3) cellulose or hemicellulose, and (b4) wood flour. The plasticizer (C) may be selected from (c1) a glycerin ester-based plasticizer, (c2) an ether-based plasticizer, and (c3) a glycol ester-based plasticizer. A content of the component (A) may be from 45 to 90 mass %. A total content of the component (B) may be from 5 to 50 mass %. A total content of the component (C) may be from 5 to 35 mass %.Type: ApplicationFiled: April 8, 2024Publication date: July 25, 2024Applicant: Daicel CorporationInventors: Masaaki KUSUMOTO, Takafumi KAWASAKI, Akihiro HIGUCHI
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Patent number: 12046390Abstract: A novel dopant according to the present disclosure includes an anion represented by the following Formula (1) and a counter cation. In Formula (1), R1 and R2 may be each at least one group selected from a nitro group, a cyano group, an acyl group, a carboxyl group, an alkoxycarbonyl group, a haloalkyl group, a sulfo group, an alkylsulfonyl group, an halosulfonyl group, and a haloalkylsulfonyl group, or may be a group formed by R1 and R2 bonded to each other [—SO2-L-SO2—] (where L represents a haloalkylene group). The counter cation may be a radical cation represented by Formula (2), where R1 and R2 represent electron-withdrawing groups that may be bonded to each other to form a heterocycle, and R3 to R5 represent a hydrogen atom, a hydrocarbon group that may have a substituent, or a heterocyclic group that may have a substituent. The dopant is capable of forming an electroconductive composition that shows a high conductivity.Type: GrantFiled: August 17, 2020Date of Patent: July 23, 2024Assignees: THE UNIVERSITY OF TOKYO, DAICEL CORPORATIONInventors: Toshihiro Okamoto, Tadanori Kurosawa, Junichi Takeya, Daiji Ikeda, Yasuyuki Akai
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Publication number: 20240238729Abstract: [Object] To provide a method for isolating and purifying a minute useful substance. [Solution] Disclosed is a method for isolating and purifying a minute useful substance. The method includes filtering a liquid containing a minute useful substance through a hollow fiber membrane. The hollow fiber membrane has an inner diameter of 0.2 mm to 1.4 mm and a molecular weight cut-off of 100000 to 1000000. The filtering includes a first filtration process of press-fitting the liquid containing the minute useful substance from a first opening on one end side of the hollow fiber membrane and filtering the liquid to separate the liquid into a permeate and a first concentrate, and a second filtration process of press-fitting the first concentrate from a second opening on the other end side of the hollow fiber membrane and filtering the first concentrate to separate the first concentrate into a permeate and a second concentrate.Type: ApplicationFiled: May 24, 2022Publication date: July 18, 2024Applicants: DAICEL CORPORATION, DAICEN MEMBRANE-SYSTEMS Ltd.Inventor: Shuji NAKATSUKA
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Publication number: 20240238728Abstract: [Object] To provide an isolation and purification method for isolating and purifying extracellular vesicles. [Solution] An isolation and purification method of extracellular vesicles is disclosed. A hollow fiber membrane has an inner diameter of 0.2 mm to 1.4 mm and a molecular weight cut-off of 100000 to 1000000. Filtering includes a first filtration process of press-fitting the culture supernatant of the mesenchymal stem cells from a first opening on one end side of the hollow fiber membrane and filtering the culture supernatant to separate the culture supernatant into a permeate and a first concentrate, and a second filtration process of press-fitting the first concentrate from a second opening on the other end side of the hollow fiber membrane and filtering the first concentrate to separate the first concentrate into a permeate and a second concentrate.Type: ApplicationFiled: May 24, 2022Publication date: July 18, 2024Applicants: DAICEN MEMBRANE-SYSTEMS Ltd., Daicel CorporationInventors: Shuji NAKATSUKA, Seiichi UCHIMURA, Takahiro OCHIYA, Yusuke YOSHIOKA
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Publication number: 20240240101Abstract: Provided is a composition for a refrigeration machine capable of reducing a friction coefficient in friction between sliding members in a refrigeration machine, and a composition kit for a refrigeration machine for providing the composition for a refrigeration machine. A composition for a refrigeration machine of the present disclosure includes a refrigeration machine oil, nanodiamond particles dispersed in the refrigeration machine oil, and a dispersant. The refrigeration machine oil preferably contains a polyvinyl ether, a polyol ester, a polyalkylene glycol, an alkylbenzene, or a mineral oil. The composition kit for a refrigeration machine of the present disclosure includes a refrigeration machine oil (A) containing a base oil and nanodiamond particles dispersed in the base oil, and a refrigerant (B).Type: ApplicationFiled: May 11, 2022Publication date: July 18, 2024Applicants: DAICEL CORPORATION, DAIKIN INDUSTRIES, LTD.Inventors: Norihiro KIMOTO, Hisayoshi ITO, Kouichi UMEMOTO, Takeru KASHIWAGI, Daisuke SHIRO, Hidekazu TAKEUCHI, Hideki MATSUURA, Shogo MOROE, Arisa KAWAE, Masaru TANAKA
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Publication number: 20240239723Abstract: A gas generator includes: an ignition device attached to one end side of a housing; a combustion chamber formed inside the housing and configured to accommodate a gas generating agent; a diffuser portion in a cup shape formed on the other end side of the housing and including a plurality of gas discharge ports; a filter at least partially accommodated inside the diffuser portion, the filter internally including a hollow flow path directed from an open end side toward a closed end side of the diffuser portion, the flow path including a first section including one end connected to the combustion chamber and a second section connected to the other end of the first section; and a block portion configured to bring a communication state between the first section and the second section when the combustion pressure is equal to or greater than the critical threshold.Type: ApplicationFiled: December 28, 2021Publication date: July 18, 2024Applicant: Daicel CorporationInventor: Tomoya SASAKI
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Publication number: 20240239298Abstract: An airbag device includes a gas generator including a first gas generating agent and an ignition unit, and an airbag configured to inflate upon receiving a combustion gas from the gas generator, the airbag including an inlet being configured to cause the combustion gas supplied from the gas generator to flow into an internal space of the airbag, a bag-shaped portion configured to separate, from an outside, the internal space into which the combustion gas flows from the inlet, the bag-shaped portion being configured to be in a folded state and to be in an inflated state by receiving the supply of the combustion gas, and a second gas generating agent that is disposed at a predetermined position on an inner surface of the bag-shaped portion and generates gas by using thermal energy of the combustion gas without accompanying a combustion reaction.Type: ApplicationFiled: March 29, 2024Publication date: July 18, 2024Applicant: DAICEL CORPORATIONInventor: Masayuki Yamazaki
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Publication number: 20240240030Abstract: The antiglare film of the present invention is provided with an antiglare layer having a haze value in a range from 60% to 95%, an internal haze value in a range from 0.5% to 15.0%, and a standard deviation of luminance distribution of a display in a case where the antiglare film is mounted on a surface of the display in a range from 0 to 10.Type: ApplicationFiled: February 23, 2024Publication date: July 18, 2024Applicant: DAICEL CORPORATIONInventor: Yoshitaka SUGAWARA
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Patent number: 12037319Abstract: Provided is a curable compound having a low melting temperature, having excellent workability as a result of having good solvent solubility, and being capable of forming a cured product having excellent heat resistance. The curable compound according to an embodiment of the present invention includes the following characteristics (a) to (e). (a) Number average molecular weight (calibrated with polystyrene standard): 1000 to 15000. (b) Proportion of a structure derived from an aromatic ring in the total amount of the curable compound: 50 wt. % or greater. (c) Solvent solubility at 25° C.: 1 g/100 g or greater. (d) Glass transition temperature: 280° C. or lower. (e) 5% Weight loss temperature (Td5) measured at a rate of temperature increase of 10° C./min (in nitrogen), for a cured product of the curable compound: 300° C. or higher.Type: GrantFiled: June 10, 2019Date of Patent: July 16, 2024Assignee: DAICEL CORPORATIONInventors: Daisuke Ito, Tsukasa Yoshida, Toshihiro Tai, Hitomi Tamaoki, Satoru Sumimoto
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Patent number: 12038557Abstract: An anti-reflection film (X) includes a laminated structure including a substrate (11), a hard coat layer (12), and an anti-reflection layer (13), and a luminous reflectance of the anti-reflection layer (13) side is 2% or less. A minimum value of a mandrel diameter indicating the bending resistance is in a range of 6 mm or less in a bending test according to a cylindrical mandrel method in which the test piece of the anti-reflection film (X) is bent with the anti-reflection layer (13) side inward. Additionally or alternatively, a minimum value of the mandrel diameter indicating the bending resistance is in a range of 10 mm or less in a bending test according to a cylindrical mandrel method in which the test piece of the anti-reflection film (X) is bent with the anti-reflection layer (13) side outward. Such an anti-reflection film is suitable for achieving high bending resistance together with high anti-reflective properties.Type: GrantFiled: January 21, 2019Date of Patent: July 16, 2024Assignee: DAICEL CORPORATIONInventors: Takahiro Sakakibara, Masashi Yokoyama
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Patent number: 12037513Abstract: The antiglare film of the present invention is provided with an antiglare layer having a haze value in a range from 50% to 99%, and in a state where the antiglare film is mounted on a surface of a display, a standard deviation of luminance distribution of the display is a value in a range from 0 to 6, and transmission image clarity at an optical comb width of 0.5 mm is a value in a range from 0% to 60%.Type: GrantFiled: January 14, 2022Date of Patent: July 16, 2024Assignee: DAICEL CORPORATIONInventors: Masaki Hayashi, Yoshitaka Sugawara
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Patent number: 12038258Abstract: An igniter assembly includes an igniter of an electric ignition type including: an ignition portion including an igniting agent; a holding portion made of resin and covering at least a portion of the ignition portion and holding the ignition portion; and an electro-conductive pin configured to energize the ignition portion, and also includes an igniter collar made of metal and to which the igniter is attached. The igniter collar includes a fixing portion surrounding the holding portion to fix it. The holding portion includes a protrusion portion formed continuously around a periphery of the holding portion and formed integrally with the holding portion. The protrusion portion is press-attached to the fixing portion in a state where the holding portion is fixed to the fixing portion.Type: GrantFiled: March 17, 2022Date of Patent: July 16, 2024Assignee: DAICEL CORPORATIONInventor: Kenichi Yonezawa
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Publication number: 20240228753Abstract: A thermoplastic resin composition may include a cellulose ester, a polyester, and a plasticizer. The plasticizer may have a number average molecular weight of 1000 or less. An amount of the polyester may be 120 parts by weight or less per 100 parts by weight of the cellulose ester. An amount of the plasticizer may be less than 100 parts by weight per 100 parts by weight of the cellulose ester.Type: ApplicationFiled: March 12, 2021Publication date: July 11, 2024Applicant: Daicel CorporationInventors: Masaaki KUSUMOTO, Hiroki TANIGUCHI, Takafumi KAWASAKI, Akihiro HIGUCHI
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Publication number: 20240226460Abstract: An aid of a jet injector includes a first pinching piece and a second pinching piece that face each other, and pinches a skin in a state of holding the skin with pinching surfaces facing each other and thus forms a fold shape part where the skin is raised in a fold shape; and a reception portion that is provided in the first pinching piece, exposes a fold top part vicinity region, which is a region in a vicinity of a fold top part, in the fold shape part, and can receive the nozzle portion of the jet injector.Type: ApplicationFiled: February 28, 2022Publication date: July 11, 2024Applicant: DAICEL CORPORATIONInventors: Kunihiko YAMASHITA, Katsuya MIKI
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Publication number: 20240227710Abstract: A first shock absorption member between a frame forming a framework of a vehicle and an outer structure positioned outside of the frame in the vehicle, the first shock absorption member being installed in a manner that the outer structure is deformed preferentially over the frame in a shock-receiving situation in which the outer structure is displaced or deformed toward the frame side due to a shock load against the outer structure, a second shock absorption member between the frame and the outer structure, and a switching unit to switch an installation state of the second shock absorption member between a first installation state in which the second shock absorption member avoids the shock load in the shock-receiving situation and a second installation state in which the second shock absorption member receives the shock load and deforms together with the first shock absorption member in the shock-receiving situation are provided.Type: ApplicationFiled: February 18, 2022Publication date: July 11, 2024Applicant: Daicel CorporationInventor: Masayuki YAMAZAKI
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Publication number: 20240228741Abstract: Provided is a cellulose acylate composition containing cellulose acylate particles and metal compound-containing particles. The total degree of substitution of the cellulose acylate is from 0.7 to 2.9. The metal compound is one or more types of compounds selected from an alkali metal compound and an alkaline earth metal compound. The composition is produced by adding one or more types of metal compounds selected from an alkali metal compound and an alkaline earth metal compound during and/or after removing a water-soluble polymer from a dispersion containing, as a dispersoid, cellulose acylate impregnated with a plasticizer to form cellulose acylate particles.Type: ApplicationFiled: February 15, 2022Publication date: July 11, 2024Applicant: DAICEL CORPORATIONInventors: Masaya OMURA, Keiko KOBAYASHI, Junko MAKINO
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Publication number: 20240226848Abstract: There is provided a cellulose derivative that has a high amount of a chelate adsorption group introduced, has high hydrophilicity, and is capable of efficiently recovering boron. The cellulose derivative of the present disclosure has a repeating unit represented by the following formula (1-1). In the following formula (I-1), Ra is the same as or different from each other, and is a hydroxyl group or a group represented by the following formula (a). In the following formula (a), R1 represents a hydrogen atom or a methyl group. R2 represents a hydrogen atom or a hydrocarbon group optionally having a hydroxyl group. R3 represents a hydrogen atom or a hydrocarbon group. Note that at least one of all R3 contained in the cellulose derivative is the group represented by the following formula (a).Type: ApplicationFiled: August 16, 2021Publication date: July 11, 2024Applicants: NATIONAL UNIVERSITY CORPORATION KANAZAWA UNIVERSITY, DAICEL CORPORATIONInventors: Katsuhiro MAEDA, Tsuyoshi TANIGUCHI, Tatsuya NISHIMURA, Hiroya OKAMOTO, Hiroshi HASEGAWA, Asami MASHIO, Kuo Hong WONG, Motohiro TAKEKUMA, Masaru ENDO, Takashi ARAI
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Patent number: 12030783Abstract: An object of the present disclosure is to provide a method for producing a core-shell porous silica particle with an increased thickness of the shell. The object is met by a method for producing a core-shell porous silica particle, the method including the following steps: (a) preparing; (b) forming a shell precursor; (c) forming a shell; (d) preparing; (e) forming a shell precursor; and (f) forming a shell; wherein the steps (d) through (f) are further repeated one to three times, in which case the step of forming a shell described in step (d) refers to step (f).Type: GrantFiled: August 13, 2019Date of Patent: July 9, 2024Assignees: TOHOKU UNIVERSITY, DAICEL CORPORATIONInventors: Daisuke Fukuda, Daisuke Nagao, Haruyuki Ishii, Shunho Ishikawa
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Publication number: 20240217474Abstract: A gas generator includes an igniter assembly configured to release the combustion product and including an igniter body, the igniter body including an igniter cup ruptured by a combustion product and an electro-conductive pin that supplies a current, a collar portion holding the igniter body, and a holding portion interposed between the igniter body and the collar portion, a housing including a combustion chamber accommodating a gas generating agent, and including a gas discharge port through which a combustion gas is discharged, and an elastic member being disposed between the igniter assembly and the gas generating agent with an axial direction of the elastic member being in a direction same as a direction of the housing, the elastic member including a regulation portion at an inner periphery thereof, the regulation portion being configured to regulate a direction in which the igniter cup ruptured expands.Type: ApplicationFiled: March 18, 2024Publication date: July 4, 2024Applicant: DAICEL CORPORATIONInventor: Tomoya SASAKI
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Publication number: 20240210597Abstract: An antiglare film includes a substrate having a sheet-like shape, a lower hard coat layer disposed overlapping the substrate, and an upper hard coat layer disposed layered on a side of the lower hard coat layer opposite to a side of the substrate. A thickness of the lower hard coat layer is a value within a range of at least 150% or more of a thickness of the upper hard coat layer.Type: ApplicationFiled: December 17, 2021Publication date: June 27, 2024Applicant: DAICEL CORPORATIONInventors: Kensaku HIROSE, Masaki HAYASHI