Patents by Inventor Tatsuki HASEGAWA

Tatsuki HASEGAWA 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).

  • Patent number: 11162003
    Abstract: Disclosed is an adhesive composition having components (A), (B) and (C): Component (A): modified polyolefin-based resin, Component (B): polyfunctional epoxy compound, and Component (C): imidazole-based curing catalyst. Also provided is a sealing sheet composed of two release films and an adhesive layer sandwiched between the release films, wherein the adhesive layer is made by using the adhesive composition and has a thermosetting property. Also disclosed is a sealed body obtained by sealing a seal subject with the sealing sheet. The adhesive composition has excellent adhesion strength, a sealing sheet made by using the adhesive composition and having an adhesive layer is excellent in sealing performance, and a sealed body obtained by sealing a seal subject with the sealing sheet.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: November 2, 2021
    Assignee: LINTEC CORPORATION
    Inventors: Kenta Nishijima, Tatsuki Hasegawa
  • Patent number: 11078388
    Abstract: Provided is an adhesive composition containing component (A) (a modified polyolefin-based resin) and component (B) (a polyfunctional epoxy compound), wherein as a result of measuring a storage elastic modulus of a solid content, a storage elastic modulus at 23° C. is 0.1 to 600 MPa, and a storage elastic modulus at 80° C. is 0.1 MPa or lower. Also provided are: a sealing sheet having an adhesive layer formed using the adhesive composition, and a sealed body comprising a seal object that is sealed with the sealing sheet. The adhesive composition is easy to form into a sheet and excellent in unevenness followability. The sealing sheet has an adhesive layer which is formed of this adhesive composition and is excellent in unevenness followability, and a sealed body has a seal object sealed with the sealing sheet.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: August 3, 2021
    Assignee: LINTEC CORPORATION
    Inventors: Kenta Nishijima, Tatsuki Hasegawa
  • Publication number: 20190218430
    Abstract: Provided is an adhesive composition containing the following components (A) and (B), wherein as a result of measuring a storage elastic modulus of a solid content, a storage elastic modulus at 23° C. is 0.1 to 600 MPa, and a storage elastic modulus at 80° C. is 0.1 MPa or lower: Component (A): modified polyolefin-based resin Component (B): polyfunctional epoxy compound. Also provided are: a sealing sheet having an adhesive layer formed using the adhesive composition, and a sealed body comprising a seal object that is sealed with the sealing sheet. An aspect of the present invention provides an adhesive composition which is easy to form into a sheet and excellent in unevenness followability, a sealing sheet having an adhesive layer which is formed of this adhesive composition and excellent in unevenness followability, and a sealed body having a seal object sealed with the sealing sheet.
    Type: Application
    Filed: September 7, 2017
    Publication date: July 18, 2019
    Applicant: LINTEC CORPORATION
    Inventors: Kenta NISHIJIMA, Tatsuki HASEGAWA
  • Publication number: 20180346763
    Abstract: The invention is an adhesive composition comprising a modified polyolefin-based resin in an amount of 45 mass % or more based on a total solid content of the adhesive composition and satisfying the specific following equation (I): ?1/?1?0.20??(I) [?1 represents a 180° peel adhesion strength (N/25 mm) as measured using the following measurement sample (A) under an environment at 85° C. in accordance with JIS Z0237: 2009, and ?1 represents a water vapor permeability (g·m?2·day?1) as measured using the following measurement sample (B) under a condition at 40° C. and a relative humidity of 90%]. One aspect of the invention provides an adhesive composition capable of obtaining a sealant excellent in sealing performance, a sealing sheet having an adhesive layer made by using the adhesive composition, and a sealed body obtained by sealing a seal subject with the sealing sheet.
    Type: Application
    Filed: November 24, 2016
    Publication date: December 6, 2018
    Applicant: LINTEC Corporation
    Inventors: Kenta NISHIJIMA, Tatsuki HASEGAWA
  • Publication number: 20180334594
    Abstract: The invention is an adhesive composition comprising the following components (A), (B) and (C): Component (A): modified polyolefin-based resin, Component (B): polyfunctional epoxy compound, and Component (C): imidazole-based curing catalyst, and a sealing sheet composed of two release films and an adhesive layer sandwiched between the release films, wherein the adhesive layer is made by using the adhesive composition according to claim 1 and has thermosetting property, and a sealed body obtained by sealing a seal subject with the sealing sheet. One aspect of the invention provides an adhesive composition excellent in adhesion strength, a sealing sheet made by using the adhesive composition and having an adhesive layer excellent in sealing performance, and a sealed body obtained by sealing a seal subject with the sealing sheet.
    Type: Application
    Filed: November 24, 2016
    Publication date: November 22, 2018
    Applicant: LINTEC CORPORATION
    Inventors: Kenta NISHIJIMA, Tatsuki HASEGAWA