Patents Assigned to DAICEL CORPORATION
  • Publication number: 20220385037
    Abstract: The present disclosure provides an optical member for use in a laser module that includes a surface emitting laser, the optical member being capable of detecting damage (cracking, peeling, and the like), a method for manufacturing the optical member, a laser module including the optical member, and a laser device.
    Type: Application
    Filed: July 25, 2022
    Publication date: December 1, 2022
    Applicant: Daicel Corporation
    Inventors: Takahiro Iwahama, Takeshi Fujikawa, Sadayuki Fukui
  • Publication number: 20220379836
    Abstract: A sealing structure of a sealed container includes, a metallic cylindrical container having an opening, and a metallic closing member that closes the opening. The metallic closing member has an outer surface opposing an inner wall surface of the metallic cylindrical container, and the outer surface of the metallic closing member is one of plated with metal and covered with thermoplastic resin. The metallic closing member seals the opening of the metallic cylindrical container by one of melted metal and melted thermoplastic resin, and the one of melted metal and melted thermoplastic resin is a material different from a material of the metallic cylindrical container and the metallic closing member.
    Type: Application
    Filed: August 10, 2022
    Publication date: December 1, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Teppei HANANO, Shuichi SHONAI
  • Patent number: 11512183
    Abstract: An object of the present invention is to provide a cellulose acetate composition for thermoforming with excellent biodegradability and excellent thermoformability. A cellulose acetate composition for thermoforming containing a cellulose acetate and a glycerin ester-based plasticizer, wherein the cellulose acetate has a degree of acetyl substitution of 1.4 or greater and 2.0 or less, a compositional distribution index (CDI) of 4.0 or less, and a total sulfur content of 15 mg/kg or greater and less than 150 mg/kg.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: November 29, 2022
    Assignee: DAICEL CORPORATION
    Inventors: Kyokutou Ga, Hiroki Taniguchi
  • Publication number: 20220372219
    Abstract: Provided is a novel polycarbonate polyol derivative having a terminal amino group. The polycarbonate polyol derivative of the present disclosure is represented by Formula (1) below. In Formula (1), A denotes a group having a polycarbonate skeleton, and n and m are average values and are numbers satisfying n?2 and n?m>0. The group A in Formula (1) is a group in which all hydroxyl groups are removed from the structural formula of a polycarbonate polyol having a number average molecular weight from 300 to 10000, and preferably includes a group having a repeating unit represented by Formula (a) below.
    Type: Application
    Filed: June 19, 2020
    Publication date: November 24, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Shintarou HATANAKA, Takashi KONNO
  • Publication number: 20220372188
    Abstract: Provided is a resin that exhibits high resist performance because a poorly soluble component with respect to a resist solvent is reduced, and a production method for the resin. Disclosed is a photoresist resin containing an acrylic resin, in which when the photoresist resin is dissolved in propylene glycol monomethyl ether acetate in such a way that a resin solid content concentration is 5 wt %, a polystyrene equivalent turbidity measured using a method described in “Drinking Water Testing Methods” of Japan Water Works Association of 2003, Ministry of Health, Labor and Welfare Ordinance No. 261 of Japan is 30 or less.
    Type: Application
    Filed: June 18, 2020
    Publication date: November 24, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Akinori ITO, Akira EGUCHI
  • Patent number: 11505460
    Abstract: Provided is a method for generating hydrogen at a desired rate, using a hydrogen storage material that can be stored and transported safely and inexpensively. The method according to the present invention for producing a silanol compound and hydrogen includes subjecting a hydrosilane compound and water to a reaction with each other in the presence of a solid catalyst to give a silanol compound and hydrogen. The solid catalyst includes hydroxyapatite and gold particles supported on the hydroxyapatite, where the gold particles have an average particle size of 2.5 nm or less. The reaction in the method according to the present invention for producing a silanol compound and hydrogen is preferably performed in an air atmosphere. The reaction in the method according to the present invention for producing a silanol compound and hydrogen can be performed with application of substantially no heat and no activated energy rays.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: November 22, 2022
    Assignees: OSAKA UNIVERISTY, DAICEL CORPORATION
    Inventors: Kiyotomi Kaneda, Takato Mitsudome, Yasuteru Kajikawa, Yuuichirou Hirai, Keisuke Ono
  • Patent number: 11505640
    Abstract: Provided is an alicyclic epoxy compound product used in applications for forming a cured product excellent in heat resistance and transparency. The alicyclic epoxy compound product according to an embodiment of the present invention includes 3,4-epoxycyclohexylmethyl(3,4-epoxy)cyclohexanecarboxylate, a purity of which is of not less than 98.5 wt. %, and each content of a compound represented by Formula (a) below, a compound represented by Formula (b) below, a compound represented by Formula (c) below, and a compound represented by Formula (d) below is not greater than 0.5 wt. %.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: November 22, 2022
    Assignee: DAICEL CORPORATION
    Inventors: Hirose Suzuki, Yoshito Nakai
  • Publication number: 20220362118
    Abstract: Provided is a high-purity 1,3-butylene glycol product that is odorless and is unlikely to cause acid concentration increase over time in a state containing water. A 1,3-butylene glycol product, having, according to a gas chromatographic analysis performed under predetermined conditions, a peak area ratio of 100 ppm or lower appearing in a relative retention time ranging from 1.35 to 1.45, provided that the relative retention time for a peak of 1,3-butylene glycol is 1.0.
    Type: Application
    Filed: September 3, 2020
    Publication date: November 17, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Yasuteru KAJIKAWA, Yuki TESHIMA, Yuuichirou HIRAI, Keisuke ONO, Midori UMEHARA, Tetsuro NAKANISHI
  • Publication number: 20220363214
    Abstract: The present invention provides a seat frame inflator including a seat frame housing portion formed of a seat frame having a hollow structure and forming an outer shell of a pressurized gas chamber, and a partition member disposed on a hollow side of the seat frame and configured to isolate the pressurized gas chamber and a gas chamber outer region from each other. The partition member is provided with a communication hole, and a closing member configured to close the communication hole. The seat frame inflator includes an opening member disposed on the hollow side of the seat frame, and configured to open the pressurized gas chamber, and a gas discharge port formed in the seat frame to face the gas chamber outer region and configured to discharge, from the gas chamber outer region to the outside, the pressurized gas flowing from the pressurized gas chamber.
    Type: Application
    Filed: April 20, 2020
    Publication date: November 17, 2022
    Applicant: Daicel Corporation
    Inventor: Nobuyuki KATSUDA
  • Publication number: 20220363942
    Abstract: Provided is a composition capable of forming a cured product excelling in adhesion to a substrate, hardness, scratch resistance, and chemical resistance. The composition of the present disclosure contains a polyol compound (A) and an isocyanate compound (B) The polyol compound (A) includes a compound (a1) represented by Formula (1) below, where R1 to R3 each are a group represented by Formula (1a), the compound (a1) having a number average molecular weight (calibrated with polystyrene standard) of 800 or greater. The isocyanate compound (B) includes a polyisocyanate compound having an isocyanurate skeleton.
    Type: Application
    Filed: September 8, 2020
    Publication date: November 17, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Takashi KONNO, Naritoshi MAETSU, Jun WATANABE, Shintarou HATANAKA
  • Publication number: 20220365246
    Abstract: Provided is an optical laminate produced by disposing an anti-glare layer on at least one side of a light-transmitting substrate, the anti-glare layer having a surface that has the arithmetic mean peak curvature Spc of 1.5 mm?1 or less in absolute value, the optical laminate has the adjusted transmission image clarity of 85% or less. On the anti-glare layer, further disposed is a low refractive index layer. The optical laminate including the low refractive index layer may have a luminous reflectance of 1.4 or less. The optical laminate improves the anti-glare properties.
    Type: Application
    Filed: June 4, 2020
    Publication date: November 17, 2022
    Applicant: Daicel Corporation
    Inventor: Yoshitaka SUGAWARA
  • Patent number: 11502002
    Abstract: Provided is a method for manufacturing a semiconductor device suitable for achieving low wiring resistance between semiconductor elements that is bonded via an adhesive layer and multi-layered. The method according to the present invention is as follows. First, a wafer laminate (W) is prepared, the wafer laminate (W) including a wafer (10) having a circuit forming surface (10a), a wafer (20) having a main surface (20a) and a back surface (20b), and an adhesive layer (30) containing an SiOC-based polymer. Then, a hole (H) is formed in the wafer laminate (W) by etching the wafer laminate (W) from the wafer (20) side via a mask pattern masking a portion of the main surface (20a) side of the wafer (20), the hole (H) extending through the wafer (20) and the adhesive layer (30) and reaching a wiring pattern (12b) in the wafer (10). Then, an insulating film (41) is formed on an inner surface of the hole (H). Then, the insulating film (41) on a bottom surface of the hole (H) is removed.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: November 15, 2022
    Assignee: DAICEL CORPORATION
    Inventor: Naoko Tsuji
  • Publication number: 20220354760
    Abstract: Provided is a method capable of manufacturing high-purity 1,3-butylene glycol having a high potassium permanganate test value, a very low content of low boiling point components, and a high initial boiling point with a high recovery rate. The method for manufacturing 1,3-butylene is a method for obtaining purified 1,3-butylene glycol from a crude reaction liquid containing 1,3-butylene glycol. In a dehydration column used in a dehydration step, a liquid feed containing 1,3-butylene glycol and water with an acetaldehyde content of 1000 ppm or lower and a crotonaldehyde content of 400 ppm or lower is distilled under a condition of a reflux ratio of higher than 0.3, and a liquid concentrated with a low boiling point component containing water is distilled off from above a feed tray.
    Type: Application
    Filed: December 23, 2020
    Publication date: November 10, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Masahiko SHIMIZU, Ryuji SAITOU, Katsunori MAKIZAWA
  • Publication number: 20220356412
    Abstract: Provided is a carbon transfer film excellent in wear suppression and friction reduction effects. A carbon transfer film 12 contains sp2-bonded carbon, wherein a ratio of zirconium calculated by elemental analysis of a surface by SEM-EDX measurement is 0.6 mass % or lower, and a thickness is less than 100 nm. A sliding member 1 includes a substrate 11 and a carbon transfer film 12 provided on at least one surface of the substrate 11, wherein the carbon transfer film 12 contains sp2-bonded carbon and has a thickness of less than 100 nm; and a ratio of zirconium calculated from elemental analysis the carbon transfer film 12 surface by SEM-EDX measurement of is 0.6 mass % or lower. A lubricant composition contains an organic dispersion medium as a lubricant base and nanodiamond particles nanodispersed in the organic dispersion medium, wherein a content ratio of zirconia is lower than 100 mass ppm.
    Type: Application
    Filed: September 16, 2020
    Publication date: November 10, 2022
    Applicant: DAICEL CORPORATION
    Inventor: Ryosuke IHARA
  • Patent number: 11491447
    Abstract: This ionic liquid-containing laminate includes a porous layer having affinity with ionic liquids (C), said layer holding an ionic liquid-containing liquid (A) within voids therein, and a porous layer lacking affinity with ionic liquids (B). The porous layer having affinity with ionic liquids (C) may include an inorganic material (e.g., metal oxide particles having an average particle size of 0.001 to 10 ?m on a number basis). The ionic liquid-containing liquid (A) may include an ionic liquid containing cations selected from ammonium, imidazolium and phosphonium cations, and anions selected from fluorine-containing anions, cyano-containing anions and amino acid-derived anions. The porous layer having affinity with ionic liquids (C) may include 1 to 100 volume parts of the ionic liquid-containing liquid (A) with respect to 100 volume parts of voids therein.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: November 8, 2022
    Assignee: DAICEL CORPORATION
    Inventors: Toshikazu Nakamura, Masao Iwaya, Takamasa Suzuki, Tomohiro Goto
  • Publication number: 20220347367
    Abstract: Provided is a blood filter that resists deterioration in properties as a result of electron beam sterilization treatment performed before or during use as a blood filter, has durability, dimensional stability, and chemical resistance at excellent levels, also has biocompatibility, and resists deterioration in properties even upon the electron beam sterilization treatment. The blood filter according to the present invention includes a nonwoven fabric made of PEEK fibers. Preferably, the blood filter according to the present invention has an average pore size of 3 to 280 ?m and has a porosity of 15% to 70%; and the PEEK fibers have an average fiber diameter of 10 ?m or less.
    Type: Application
    Filed: July 15, 2022
    Publication date: November 3, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Takashi ARAI, Yo YAMATO, Koji NAKANE, Naoki SHIMADA, Hanako ASAI
  • Patent number: 11485698
    Abstract: Provided is a method capable of industrially efficiently producing acetic acid yielding a good potassium permanganate test result, without costing much. In the acetic acid production method, (1) by-produced acetaldehyde is industrially advantageously removed from a process stream, and (2) a crotonaldehyde concentration in an acetic acid stream from a light ends column is controlled to a specific level or lower, and/or a reflux ratio at a second distillation column is controlled to 0.1 or more. In addition, (3) the method includes the step of subjecting at least one of an aqueous phase and an organic phase of a light ends column overhead condensate to distillation in a crotonaldehyde-removing column; the light ends column is operated at a reflux ratio of 2 or more (when the aqueous phase is refluxed); and the crotonaldehyde-removing column is operated so as to meet a specific condition(s).
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: November 1, 2022
    Assignee: DAICEL CORPORATION
    Inventor: Masahiko Shimizu
  • Patent number: 11484855
    Abstract: A gas generator including a first igniter, a second igniter, a partition wall that partitions inside a housing into a first space that contains a first gas generating agent and a second space that contains a second gas generating agent, and an inner cylindrical member that houses the first igniter and includes a communication portion at a first end portion, the gas generator further including a closing member that closes a third space that is formed between an inner wall surface of the inner cylindrical member and an outer wall surface of the fixing portion and that connects the communication portion with the first space, the closing member being inhibited from deforming due to pressure from a side of the first space and allowing deformation due to pressure from a side of the third space that negates a closed state between the first space and the third space.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: November 1, 2022
    Assignee: DAICEL CORPORATION
    Inventor: Koji Yamamoto
  • Publication number: 20220339555
    Abstract: Provided is a separation method for amine, the separation method including performing liquid chromatography, wherein a separating agent in which a ligand having a crown ether-like cyclic structure is supported on a carrier is used as a stationary phase, and wherein a mobile phase contains an aqueous solution of at least one salt of a hydrophobic anion selected from the group consisting of a salt of a chaotropic anion and a salt of a hydrophobic organic acid.
    Type: Application
    Filed: June 12, 2020
    Publication date: October 27, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Toru Shibata, Satoshi Shinkura, Atsushi Ohnishi
  • Patent number: D969315
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: November 8, 2022
    Assignee: DAICEL CORPORATION
    Inventors: Yuzo Yamamoto, Hiromitsu Iga