Patents Assigned to Sumitomo Bakelite Co., Ltd.
  • Patent number: 12703126
    Abstract: The mold release film has a multilayer structure in which a mold release layer, a first base material layer, and a second base material layer are laminated. The mold release layer constitutes a mold release surface, and the second base material layer constitutes a surface of the mold release film on an opposite side of the mold release surface. The mold release layer contains one or two or more selected from a silicone resin, a fluororesin, a melamine resin, an epoxy resin, and a phenolic resin. The first base material layer is formed by a stretched or un-stretched film containing one or two or more selected from a polyester resin, a polyolefin resin, and a polyamide resin. The second base material layer is formed by a stretched or un-stretched film containing one or two or more selected from a polyester resin, a polyolefin resin, and a polyamide resin.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: August 11, 2026
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Shinichi Maesowa, Jun Okada, Motoki Sato
  • Publication number: 20260224377
    Abstract: A manufacturing method of a stent with a string includes a first knot forming step of forming a first bent portion at a string and forming a first knot by passing a part on the other end side of the string with respect to the first bent portion between the first bent portion and a stent in one circumferential direction around the stent and a second knot forming step of forming a second bent portion at the part passed between the first bent portion and the stent and forming a second knot by passing a part on the other end side of the string with respect to the second bent portion between the second bent portion and the stent in the other circumferential direction around the stent, which is an opposite direction to a direction of passing the first bent portion.
    Type: Application
    Filed: February 1, 2024
    Publication date: August 6, 2026
    Applicants: SB-KAWASUMI LABORATORIES, INC., SUMITOMO BAKELITE CO., LTD.
    Inventors: Tomokazu Mukai, Masako Miyahisa
  • Publication number: 20260216928
    Abstract: A mold release film (100) of the present invention has a configuration in which a first mold release layer (11) constituting one mold release surface, an interlayer (20), and a second mold release layer (12) constituting the other mold release surface are laminated in this order, in which the interlayer (20) is composed of a resin composition for the interlayer, containing a polyester resin.
    Type: Application
    Filed: December 27, 2022
    Publication date: July 30, 2026
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventor: Shinichi Maesowa
  • Publication number: 20260221569
    Abstract: The resin battery module includes: a plurality of pouch type or prismatic type battery cells including a battery cell terminal; a circuit board; a bus bar that is electrically connected to the battery cell terminal of each of the plurality of battery cells and the circuit board; a fire-resistant plate that is disposed between at least one set of adjacent battery cells among a plurality of battery cells arranged in one direction; a pair of end plates that are provided on both end sides of the plurality of battery cells arranged in one direction, respectively; and a pair of side plates that are coupled with the pair of end plates to form a surrounding structure accommodating the plurality of battery cells, in which at least one of the fire-resistant plate and the pair of end plates is formed of a cured product of a thermosetting resin composition.
    Type: Application
    Filed: December 20, 2023
    Publication date: July 30, 2026
    Applicants: SUMITOMO BAKELITE CO., LTD., Sumitomo Bakelite Europe (Ghent) NV
    Inventors: Koji Koizumi, Hideaki Inokuchi, Arne Dekeyser, Hendrik De Keyser, Johannes Liebertseder, Leonard John
  • Patent number: 12692385
    Abstract: A method for producing an encapsulated structure, the method including: a step of supplying granules or powder (1) formed from an epoxy resin composition to an extruder equipped with a screw (42) and a die (5) provided at the tip of the screw (42), and heating and melting the granules or powder (1) formed from the epoxy resin composition; a step of extruding the molten epoxy resin composition through the die (5) having a predetermined opening shape by rotation of the screw (42); a step of cutting the extruded epoxy resin composition (6) into a predetermined length to obtain a tablet formed from the epoxy resin composition, where the tablet has dimensions with a diameter of equal to or more than 40 mm and equal to or less than 100 mm and a length of equal to or more than 50 mm and equal to or less than 300 mm; a step of transferring the tablet to a transfer molding machine having a molding mold (30) in which an object to be encapsulated is disposed; and a step of obtaining an encapsulated structure by encap
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: July 28, 2026
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Makoto Matsuo, Hidetoshi Seki
  • Publication number: 20260159719
    Abstract: Provided is a phenolic resin composition which is a liquid and is used for impregnating or coating an organic fiber base material, in which the phenolic resin composition is obtained through a step of reacting phenols and aldehydes, which are starting substances, in a presence of a basic catalyst under a condition that a molar ratio of [aldehydes]/[phenols] is 0.8 or more and 3.0 or less, to obtain a resol-type phenolic resin, and a step of adding glycine to the resol-type phenolic resin in an amount of 0.01 mol or more and less than 1.0 mol with respect to 1 mol of the phenols as the starting substance, to obtain the phenolic resin composition.
    Type: Application
    Filed: November 11, 2022
    Publication date: June 11, 2026
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventor: Yuji Suzuki
  • Publication number: 20260159657
    Abstract: A translucent resin sheet of the present invention is used as a cover member 1 installed to cover a window portion of a storage body which stores a light source emitting light and includes the window portion, through which the light from the light source is emitted toward an outside. The translucent resin sheet (the cover member 1) includes a resin layer 3 configured with a resin material as a main material, and a coating layer 5 laminated on at least one surface of the resin layer 3, the coating layer 5 contains a curable resin and an ultraviolet absorber, and it is satisfied that a color change of the translucent resin sheet measured based on ISO11664-4 after irradiating the coating layer 5 with ultraviolet rays for 600 hours using a xenon weather meter based on Table 3-A method-Cycle No. 3 in JIS K 7350-2 is less than 5.0 [?E].
    Type: Application
    Filed: October 28, 2022
    Publication date: June 11, 2026
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Hiroki Kusano, Koshi Miyazawa
  • Publication number: 20260158774
    Abstract: A sandwich panel (100) includes: a core layer (10) having a honeycomb structure; and cured products (40) of one or more prepregs (20) provided on both surfaces of the core layer (10), in which a part of the cured products (40) of the prepregs (20) penetrates into the core layer (10), and when an outermost surface of the sandwich panel (100) is observed, a number density of pinholes is 0 to 50 pieces/cm2.
    Type: Application
    Filed: December 23, 2022
    Publication date: June 11, 2026
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Masao Uesaka, Hajime Yamato, Shogo Konoike, Yosuke Enomoto
  • Publication number: 20260140407
    Abstract: The electrochromic sheet includes a first support layer, an electrolyte layer, a first electrochromic layer, and a sealing part. The amount of deformation measured according to the following procedure i is 0.01 mm to 0.09 mm. Procedure i: A test piece (having a maximum length of 20 mm or more) in which the electrolyte layer is located at a central part and the sealing part is located at an outer edge is produced by using the electrochromic sheet, the test piece is chucked at both ends by a chucking part, the central part of the test piece is pressed at 30 N for 30 seconds, and a difference in depth between the central part of the test piece before being pressed and the central part of the test piece after being pressed is defined as an amount of deformation (mm).
    Type: Application
    Filed: October 31, 2023
    Publication date: May 21, 2026
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Satoshi Nishino, Tadashi Nakamura, Tomoki Matsui
  • Publication number: 20260135422
    Abstract: A stator includes: a yoke portion; tooth portions extending from the yoke portion; a coil accommodated in slots formed between the tooth portions; and a cooling water channel (200) that cools the coil. The cooling water channel (200) includes coil inner water channels (301) disposed between one end and the other end in an axial direction to cool the coil, and a header water channel (310) that is connected to a plurality of the coil inner water channels (301), that is disposed outside the coil, and that distributes cooling water introduced into the coil inner water channels (301) or collects the cooling water discharged from the coil inner water channels (301). When a total cross-sectional area of the coil inner water channels (301) is S1, and a cross-sectional area of a surface of the header water channel (310), the surface being perpendicular to a movement direction of the cooling water, is S2, a ratio S2/S1 between the S1 and the S2 is equal to or more than 0.5.
    Type: Application
    Filed: October 21, 2022
    Publication date: May 14, 2026
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Wataru KOSAKA, Shinya YAMAMOTO, Atsunori NISHIKAWA, Takahiro HARADA
  • Patent number: 12627189
    Abstract: A stator (4) has a stator core having a plurality of tooth portions (7), a slot (8) provided between the tooth portions (7) and accommodating a coil (9), and the coil (9) accommodated in the slot (8), the stator has a resin layer (50) provided on an inner surface of the slot (8) and made of an insulating resin composition, a wall surface (a resin layer surface (55) of an inner resin layer (51)) of the resin layer (50) on an inner side of the slot (8) is provided in parallel with a rotating shaft direction, the resin composition of the resin layer (50) contains a thermosetting resin, and the thermosetting resin has a glass transition temperature Tg of 120° C. or higher.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: May 12, 2026
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Atsunori Nishikawa, Takahiro Harada, Shinya Yamamoto, Wataru Kosaka
  • Patent number: 12600101
    Abstract: The manufacturing method of an optical waveguide of the present invention includes a step of preparing a workpiece which includes a core layer including a core portion-forming region and has a sheet shape and a step of cutting out an optical waveguide from an inside of the core portion-forming region in the workpiece. The core layer satisfies all of the following requirements (a), (b), and (c). (a) the core layer contains a polymer and a monomer, and has a refractive index distribution based on a difference in concentration of the monomer or a difference in concentration of a structure derived from the monomer.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: April 14, 2026
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Motoya Kaneta, Hirotake Imai
  • Publication number: 20260055238
    Abstract: A resin composition for a stator, which is used for forming a sealing member in a stator including a stator core having a plurality of teeth parts and a plurality of slots that are alternately formed in a circumferential direction, a coil wound around the slot, accommodated in the slot, and having a pair of coil ends that each protrude over both sides from the stator core in an axial direction, and a sealing member provided by covering the coil in the slot, the resin composition for a stator including a thermosetting component, in which a cured product obtained by thermally curing the resin composition for a stator has a structure represented by Formula (1) and has an easily disassembling property. (In Formula (1), R1 and R2 each independently represent any of a hydrogen atom, a hydrocarbon group or aromatic group having 1 to 30 carbon atoms, a hydroxyl group, and an alkoxyl group having 1 to 30 carbon atoms.
    Type: Application
    Filed: August 22, 2023
    Publication date: February 26, 2026
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Tsuneaki KUMAMOTO, Koji MAKIHARA
  • Patent number: 12544317
    Abstract: The gastrostomy catheter includes a shaft in which a lumen is provided, a flexible bumper which is provided at a tip of the shaft, and a wire which has elasticity and can bias the bumper in a diameter-increasing direction and restricts deformation of the bumper in a diameter-decreasing direction. At least a portion on a tip side of the wire biases the bumper in the diameter-increasing direction or restricts the deformation of the bumper in the diameter-decreasing direction by the elasticity of the wire in a state in which the wire is disposed in the bumper.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: February 10, 2026
    Assignees: SUMITOMO BAKELITE CO., LTD.
    Inventors: Hiroyuki Fukuda, Kiyotaka Arikawa, Minoru Suzuki, Yutaka Suzuki
  • Patent number: 12545747
    Abstract: Provided are a method for preparing a glycan from a glycoprotein, and a kit and a device for preparing a glycan from a glycoprotein. The method includes (I) a step of obtaining a glycan-containing sample by bringing a glycan releasing solution that contains a hydroxylamine compound and a basic reagent into contact with the glycoprotein and releasing the glycan from the glycoprotein; (II) a step of adsorbing a glycan having a length of a monosaccharide or more on a purifying agent for purifying the glycan by bringing the glycan-containing sample into contact with the purifying agent, which is composed of a compound having a betaine structure; and (III) a step of eluting the glycan from the purifying agent.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: February 10, 2026
    Assignees: National Institute of Advanced Industrial Science and Technology, Sumitomo Bakelite Co., Ltd.
    Inventors: Akihiko Kameyama, Masaaki Toyoda, Midori Sakaguchi
  • Patent number: 12519032
    Abstract: A power module (10) includes a power semiconductor chip (1) and a Cu circuit (3) having the power semiconductor chip (1) provided on one surface. The power module (10) includes: a sintering layer (2) joining the power semiconductor chip (1) and the Cu circuit (3) by using a sintering paste; and a heat dissipation sheet (4) provided for joining a Cu base plate (5) to the other surface of the Cu circuit (3), in which in a first laminated structure in which the power semiconductor chip (1), the sintering layer (2), the Cu circuit (3), and the heat dissipation sheet (4) are laminated, the total thermal resistance XA in the direction of lamination is equal to or less than 0.30 (K/W).
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: January 6, 2026
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Takahiro Harada, Wataru Kosaka, Shinya Yamamoto, Atsunori Nishikawa, Masaharu Ito
  • Patent number: 12519359
    Abstract: A motor (100) includes a stator (6) having a plurality of tooth portions (7), a coil (9) wound around the tooth portions (7), and a slot (8) in which the coil (9) is formed between the tooth portions (7), in which the coil (9) is provided in the slot (8), and a cooling structure for the motor (100) includes a first resin composition with which the slot (8) is filled and which covers the coil (9), and a coil inner side cooling flow path (10) which is provided in a region filled with the first resin composition and extends in a rotating shaft direction, and in which a coolant circulates inside.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: January 6, 2026
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Toshihiro Tanno, Wataru Kosaka, Shinya Yamamoto, Atsunori Nishikawa, Takahiro Harada
  • Patent number: 12507742
    Abstract: A belt or clothing using an electrode having higher noise resistance and higher durability than an electrode formed of only a conductive fiber fabric or a conductive elastomer fabric. Clothing includes an electrode and an insulating fiber fabric in a detection region. The electrode is inside the detection region of the clothing so as to make contact with the body of the wearer. The insulating fiber fabric is a clothing material worn by the wearer and is a fabric that constitutes most of the clothing. The electrode includes a conductive fiber fabric layer and a conductive elastomer layer. The conductive fiber fabric layer is a fiber fabric formed by weaving or knitting a yarn including conductive fibers having conductivity. The conductive elastomer layer is formed by applying paste including an elastomer composition and a conductive filler onto an inner surface of the conductive fiber fabric layer and drying the paste.
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: December 30, 2025
    Assignees: MITSUFUJI CORPORATION, SUMITOMO BAKELITE CO., LTD.
    Inventors: Hideyuki Mitera, Jun Okada, Motoki Sato, Yumiko Yamanoi
  • Publication number: 20250368815
    Abstract: The present invention provides a resin sheet containing a chlorinated polyvinyl chloride and a dimethyltin-based compound, in which the chlorine content of the chlorinated polyvinyl chloride is 60% by mass or more, and the deflection temperature under load of the resin sheet measured in accordance with a JIS K 7191-1 A method is 80° C. or higher.
    Type: Application
    Filed: June 16, 2023
    Publication date: December 4, 2025
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventor: Katsuki Kanehara
  • Patent number: D1118970
    Type: Grant
    Filed: January 29, 2024
    Date of Patent: March 17, 2026
    Assignees: Sumitomo Pharma Co., Ltd., SUMITOMO BAKELITE CO., LTD., SB-KAWASUMI LABORATORIES, INC.
    Inventors: Koichiro Manabe, Atsushi Kuwahara, Kazunari Tanaka, Aiko Mizuno, Haruo Okubo, Hiroaki Yamamoto