Patents by Inventor Kohei Takeda

Kohei Takeda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240130081
    Abstract: A vapor chamber includes a main body sheet having a first main body surface and a second main body surface provided on an opposite side to the first main body surface, a space provided on the first main body surface of the main body sheet, a first sheet laminated on the first main body surface of the main body sheet and covering the space, and a retracted portion retracted toward the space beyond an outer periphery of the main body sheet or an outer periphery of the first sheet in a plan view.
    Type: Application
    Filed: February 18, 2022
    Publication date: April 18, 2024
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Kazunori ODA, Takayuki OTA, Shinichiro TAKAHASHI, Toshihiko TAKEDA, Kohei OZAWA, Hiroshi KOI
  • Patent number: 11945882
    Abstract: Crystals of the compound represented by formula (1), a method for the production thereof, and a method for producing an antibody-drug conjugate using the crystals.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: April 2, 2024
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Tatsuya Yamaguchi, Takashi Kouko, Shigeru Noguchi, Yohei Yamane, Fumikatsu Kondo, Takahiro Aoki, Tadahiro Takeda, Kohei Sakanishi, Hitoshi Sato, Tsuyoshi Ueda, Shinji Matuura, Kei Kurahashi, Yutaka Kitagawa, Tatsuya Nakamura
  • Publication number: 20240082418
    Abstract: A method for producing a compound represented by formula (C) wherein R1 represents an amino group protected with a protecting group, the method comprising a step of subjecting a compound represented by formula (B) wherein R1 represents the same meaning as above, to intramolecular cyclization to convert the compound into the compound represented by formula (C).
    Type: Application
    Filed: October 18, 2023
    Publication date: March 14, 2024
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Yoshio NISHI, Kohei SAKANISHI, Shigeru NOGUCHI, Tadahiro TAKEDA
  • Patent number: 11802177
    Abstract: An imide oligomer is provided for use in a cured product that has a high glass transition temperature after curing and is excellent in thermal decomposition resistance, adhesiveness, and long-term heat resistance. Also provided are a curable resin composition and an imide oligomer composition each containing the imide oligomer, an adhesive containing the curable resin composition, and a curing agent containing the imide oligomer composition.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: October 31, 2023
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Kohei Takeda, Sayaka Wakioka, Yuta Oatari, Takashi Shinjo, Masami Shindo
  • Patent number: 11753499
    Abstract: An imide oligomer is provided for use in a cured product that has a high glass transition temperature after curing and is excellent in thermal decomposition resistance, adhesiveness, and long-term heat resistance. Also provided are a curable resin composition and an imide oligomer composition each containing the imide oligomer, an adhesive containing the curable resin composition, and a curing agent containing the imide oligomer composition.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: September 12, 2023
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Kohei Takeda, Sayaka Wakioka, Yuta Oatari, Takashi Shinjo, Masami Shindo
  • Patent number: 11471549
    Abstract: Provided is a stretchable film having excellent stretchability, excellent air permeability, and an excellent deodorizing property. Also provided is an article including such stretchable film. A stretchable film of the present invention is a film having stretchability, and includes a deodorant. The stretchable film of the present invention is a film having stretchability, and has a deodorization efficiency for each of ammonia and hydrogen sulfide 3 hours after the start of a deodorization test, the deodorization efficiency being measured by a detector tube method, of 10% or more.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: October 18, 2022
    Assignee: NITTO DENKO CORPORATION
    Inventors: Muneshige Nakagawa, Kohei Takeda, Shinsuke Ikishima
  • Patent number: 11421107
    Abstract: The present invention aims to provide a curable resin composition capable of providing a cured product that has a high glass transition temperature after curing and is excellent in thermal decomposition resistance, adhesiveness, and long-term heat resistance. The present invention also aims to provide a cured product of the curable resin composition, an adhesive containing the curable resin composition, and an adhesive film, a coverlay film, a flexible copper clad laminate, and a circuit board each formed using the curable resin composition. Provided is a curable resin composition containing: a curable resin; an imide oligomer having an imide skeleton in a main chain and a crosslinkable functional group at an end and having a number average molecular weight of 4,000 or less; and a curing accelerator, a cured product of the curable resin composition having an initial adhesive force to polyimide of 3.4 N/cm or more, the cured product after storage at 200° C.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: August 23, 2022
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Sayaka Wakioka, Kohei Takeda, Yuta Oatari, Takashi Shinjo, Masami Shindo
  • Patent number: 11369528
    Abstract: Provided is a stretchable laminate that achieves both a weight reduction and an extension strength, and that can be stably produced. Also provided is an article including such stretchable laminate. The stretchable laminate of the present invention includes: an elastomer layer; and an olefin-based resin layer arranged on at least one side of the elastomer layer, wherein when a longitudinal direction of the stretchable laminate is defined as an MD direction and a direction perpendicular to the longitudinal direction is defined as a CD direction, a ratio [10% extension strength in MD direction (N/30 mm)]/[basis weight (gsm)] of the stretchable laminate is 0.14 (N/30 mm·gsm) or more.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: June 28, 2022
    Assignee: NITTO DENKO CORPORATION
    Inventors: Kohei Takeda, Shinsuke Ikishima, Ryuji Kuwabara
  • Patent number: 11305034
    Abstract: Provided is a stretchable film having excellent stretchability and excellent air permeability. Also provided is an article including such stretchable film. The stretchable film of the present invention includes an olefin-based resin and a filler.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: April 19, 2022
    Assignee: NITTO DENKO CORPORATION
    Inventors: Kohei Takeda, Shou Uchida, Muneshige Nakagawa, Shinsuke Ikishima, Yasuhiro Takeda, Yoshitake Shigematsu
  • Publication number: 20210130614
    Abstract: The present invention aims to provide a curable resin composition capable of providing a cured product that has a high glass transition temperature after curing and is excellent in thermal decomposition resistance, adhesiveness, and long-term heat resistance. The present invention also aims to provide a cured product of the curable resin composition, an adhesive containing the curable resin composition, and an adhesive film, a coverlay film, a flexible copper clad laminate, and a circuit board each formed using the curable resin composition. Provided is a curable resin composition containing: a curable resin; an imide oligomer having an imide skeleton in a main chain and a crosslinkable functional group at an end and having a number average molecular weight of 4,000 or less; and a curing accelerator, a cured product of the curable resin composition having an initial adhesive force to polyimide of 3.4 N/cm or more, the cured product after storage at 200° C.
    Type: Application
    Filed: January 26, 2018
    Publication date: May 6, 2021
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Sayaka WAKIOKA, Kohei TAKEDA, Yuta OATARI, Takashi SHINJO, Masami SHINDO
  • Publication number: 20210130536
    Abstract: An imide oligomer is provided for use in a cured product that has a high glass transition temperature after curing and is excellent in thermal decomposition resistance, adhesiveness, and long-term heat resistance. Also provided are a curable resin composition and an imide oligomer composition each containing the imide oligomer, an adhesive containing the curable resin composition, and a curing agent containing the imide oligomer composition.
    Type: Application
    Filed: January 26, 2018
    Publication date: May 6, 2021
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Kohei TAKEDA, Sayaka WAKIOKA, Yuta OATARI, Takashi SHINJO, Masami SHINDO
  • Publication number: 20210009749
    Abstract: A curable resin composition containing: a curable resin; and a curing agent containing an imide oligomer, the imide oligomer containing an aliphatic diamine residue- and/or aliphatic triamine residue-containing imide oligomer that has, in a main chain, an imide skeleton and a substituted or unsubstituted aliphatic diamine residue having a carbon number of 4 or greater and/or a substituted or unsubstituted aliphatic triamine residue having a carbon number of 4 or greater, has a crosslinkable functional group at an end, and has a molecular weight of 5,000 or less. The curable resin composition is excellent in flexibility and processability before curing and excellent in adhesiveness, heat resistance, and dielectric characteristics after curing. An adhesive, an adhesive film, a circuit board, an interlayer insulating material, and a printed wiring board each produced using the curable resin composition are also provided.
    Type: Application
    Filed: March 15, 2019
    Publication date: January 14, 2021
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Sayaka WAKIOKA, Yuta OATARI, Kohei TAKEDA, Masami SHINDO, Takashi SHINJO, Yuko KAWAHARA, Susumu BABA, Tatsushi HAYASHI
  • Patent number: 10889089
    Abstract: Provided is a stretchable film that can prevent a delivery failure when delivered from a winding body. Also provided is a stretchable laminate including such stretchable film. Still also provided is an article including such stretchable laminate. The stretchable film of the present invention includes a laminated film of a plurality of elastomer layers, wherein the stretchable film includes an elastomer layer (A1), an elastomer layer (B), and an elastomer layer (A2) in the stated order, wherein the elastomer layer (A1) and the elastomer layer (A2) are provided as outer layers, and wherein each of the elastomer layer (A1) and the elastomer layer (A2) contains a fatty acid amide.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: January 12, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Kohei Takeda, Muneshige Nakagawa, Shinsuke Ikishima
  • Patent number: D913549
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: March 16, 2021
    Assignee: Subaru Corporation
    Inventors: Takatoshi Nishii, Kohei Takeda
  • Patent number: D921545
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: June 8, 2021
    Assignee: Subaru Corporation
    Inventors: Kentarou Fuchino, Kohei Takeda
  • Patent number: D939403
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: December 28, 2021
    Assignee: Subaru Corporation
    Inventors: Masashi Matsumoto, Kohei Takeda
  • Patent number: D939404
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: December 28, 2021
    Assignee: Subaru Corporation
    Inventors: Kohei Takeda, Kentarou Fuchino
  • Patent number: D939405
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: December 28, 2021
    Assignee: Subaru Corporation
    Inventors: Kohei Kobayashi, Kohei Takeda
  • Patent number: D942347
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: February 1, 2022
    Assignee: Subaru Corporation
    Inventor: Kohei Takeda
  • Patent number: D1005916
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: November 28, 2023
    Assignee: Subaru Corporation
    Inventors: Kohei Takeda, Shigetaka Shimizu