Patents by Inventor Fuminori Arai

Fuminori Arai 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: 11773301
    Abstract: A resin composition includes (a) at least one 2-methylene-1,3-dicarbonyl compound, (b) an initiator comprising at least one basic substance, and (c) an anionic polymerization inhibitor including at least one borate ester compound.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: October 3, 2023
    Assignee: NAMICS CORPORATION
    Inventors: Ayako Sato, Fuminori Arai
  • Patent number: 11634615
    Abstract: A resin composition contains one or more 2-methylene-1,3-dicarbonyl compounds. At least one of the one or more 2-methylene-1,3-dicarbonyl compounds has a molecular weight of 220 to 10,000, and the amount by weight of those of the 2-methylene-1,3-dicarbonyl compounds having a molecular weight of less than 220 relative the entire resin composition of 1 is 0.00 to 0.05. The 2-methylene-1,3-dicarbonyl compounds contain a structural unit represented by formula (I) below.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: April 25, 2023
    Assignee: NAMICS CORPORATION
    Inventors: Fuminori Arai, Kazuki Iwaya
  • Patent number: 11472957
    Abstract: Provided is a resin composition, which is fast curable at low temperature, has high adhesive strength (especially, high peel strength) after curing, and can suppress a decrease in adhesive strength (especially, in peel strength) after a moisture resistance test of the resin composition after curing, and further has excellent pot life. Provided is the resin composition including: (A) an epoxy resin; (B) a thiol compound represented by C(CH2OR1)(CH2OR2)(CH2OR3)(CH2OR4) (wherein R1, R2, R3 and R4 are each independently hydrogen or CnH2nSH (wherein n is 2 to 6), at least one of R1, R2, R3 and R4 is CnH2nSH (wherein n is 2 to 6)); (b) a polyfunctional thiol compound other than the (B); and (C) a latent curing accelerator.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: October 18, 2022
    Assignee: NAMICS CORPORATION
    Inventors: Kazuki Iwaya, Fuminori Arai
  • Patent number: 11230617
    Abstract: A resin composition contains a 2-methylene-1,3-dicarbonyl compound and an initiator. The 2-methylene-1,3-dicarbonyl compound has a molecular weight of 180 to 10,000, and the initiator contains a basic substance having a pKa of 8 or greater.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 25, 2022
    Assignee: NAMICS CORPORATION
    Inventors: Fuminori Arai, Kazuki Iwaya
  • Publication number: 20210388128
    Abstract: A curing agent composition is capable of curing a base resin containing a 2-methylene-1,3-dicarbonyl compound. The curing agent composition contains a specific 2-methylene-1,3-dicarbonyl compound and an initiator. A two-part mixing adhesive contains the curing agent composition and a base resin containing another specific 2-methylene-1,3-dicarbonyl compound.
    Type: Application
    Filed: October 8, 2019
    Publication date: December 16, 2021
    Applicant: NAMICS CORPORATION
    Inventor: Fuminori ARAI
  • Publication number: 20210380851
    Abstract: A resin composition includes (a) at least one 2-methylene-1,3-dicarbonyl compound, (b) an initiator comprising at least one basic substance, and (c) an anionic polymerization inhibitor including at least one borate ester compound.
    Type: Application
    Filed: October 4, 2019
    Publication date: December 9, 2021
    Applicant: NAMICS CORPORATION
    Inventors: Ayako SATO, Fuminori ARAI
  • Publication number: 20200283551
    Abstract: A resin composition contains a 2-methylene-1,3-dicarbonyl compound and an initiator. The 2-methylene-1,3-dicarbonyl compound has a molecular weight of 180 to 10,000, and the initiator contains a basic substance having a pKa of 8 or greater.
    Type: Application
    Filed: October 30, 2018
    Publication date: September 10, 2020
    Applicant: NAMICS CORPORATION
    Inventors: Fuminori ARAI, Kazuki IWAYA
  • Publication number: 20200148922
    Abstract: A resin composition contains one or more 2-methylene-1,3-dicarbonyl compounds. At least one of the one or more 2-methylene-1,3-dicarbonyl compounds has a molecular weight of 220 to 10,000, and the amount by weight of those of the 2-methylene-1,3-dicarbonyl compounds having a molecular weight of less than 220 relative the entire resin composition of 1 is 0.00 to 0.05. The 2-methylene-1,3-dicarbonyl compounds contain a structural unit represented by formula (I) below.
    Type: Application
    Filed: May 18, 2018
    Publication date: May 14, 2020
    Applicant: NAMICS CORPORATION
    Inventors: Fuminori ARAI, Kazuki IWAYA
  • Publication number: 20200123375
    Abstract: Provided is a resin composition, which is fast curable at low temperature, has high adhesive strength (especially, high peel strength) after curing, and can suppress a decrease in adhesive strength (especially, in peel strength) after a moisture resistance test of the resin composition after curing, and further has excellent pot life. Provided is the resin composition including: (A) an epoxy resin; (B) a thiol compound represented by C(CH2OR1) (CH2OR2) (CH2OR3) (CH2OR4) (wherein R1, R2, R3 and R4 are each independently hydrogen or CnH2nSH (wherein n is 2 to 6), at least one of R1, R2, R3 and R4 is CnH2nSH (wherein n is 2 to 6)); (b) a polyfunctional thiol compound other than the (B); and (C) a latent curing accelerator.
    Type: Application
    Filed: October 23, 2017
    Publication date: April 23, 2020
    Inventors: Kazuki IWAYA, Fuminori ARAI
  • Patent number: 10472461
    Abstract: The present invention is intended to provide a semiconductor device including adherends bonded with a cured product of an adhesive, the semiconductor device being configured such that a decrease in bonding strength after curing in a moisture resistance test is suppressed. In this semiconductor device, at least two adherends 20 and 70, 70 and 60, 70 and 50 made of at least one material selected from the group consisting of engineering plastic, ceramics, and metal are bonded with a cured product 10 of an adhesive containing (A) thermosetting resin, (B) a particular thiol compound, and (C) a latent curing agent.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 12, 2019
    Assignee: NAMICS CORPORATION
    Inventor: Fuminori Arai
  • Patent number: 10246550
    Abstract: There is provided a resin composition which can be thermoset at a temperature of approximately 80° C., and has excellent PCT resistance and a long pot life. This resin composition is suitable as a one-component adhesive agent to be used during the manufacture of image sensor modules or electronic components. The resin composition according to the present invention is a resin composition having the following characteristics. The resin composition includes (A) a compound represented by formula (1) below, an oligomer having as its basic skeleton a structure represented by formula (2) below, (C) an epoxy resin, and (D) a curing accelerator. The mass ratio ((B)/(A)) between the compound of the (A) component and the oligomer of the (B) component is 5 to 25%. Furthermore, the total content of the compound of the (A) component and the oligomer of the (B) component is 0.5 equivalents to 2.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: April 2, 2019
    Assignee: NAMICS CORPORATION
    Inventors: Kazuki Iwaya, Fuminori Arai, Akikazu Matsuda, Naoto Okumura, Takeshi Kumano
  • Patent number: 10221282
    Abstract: There is provided a photocurable and thermosetting resin composition which suppresses decrease of adhesive strength in a moisture resistance test of the cured resin composition, and has a sufficiently long pot life. The resin composition includes (A) an acrylic resin, (B) a multifunctional nitrogen-containing heterocyclic compound represented by a specific chemical formula, (C) a latent curing agent, (D) a radical polymerization inhibitor, and (E) an anionic polymerization retarder. The resin composition preferably further includes (F) a compound having a glycidyl group, other than the acrylic resin.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: March 5, 2019
    Assignee: NAMICS CORPORATION
    Inventors: Kazuki Iwaya, Fuminori Arai
  • Publication number: 20180265756
    Abstract: The present invention provides a resin composition that is thermally curable at a temperature of approximately 80° C., excellent in PCT tolerance, and, therefore, suitable as a one-component adhesive to be used during manufacture of image sensor modules or electronic components. The resin composition contains (A) an epoxy resin; (B) a compound represented by formula (1) below; (C) a curing accelerator; and (D) a silane coupling agent. The compound of the (B) component has a content of 1:0.3 to 1:2.5, in terms of an equivalent ratio between epoxy groups in the epoxy resin of the (A) component and thiol groups in the compound of the (B) component, the silane coupling agent of the (D) component has a content of 0.2 parts by mass to 60 parts by mass with respect to 100 parts by mass in total of the (A) component, the (B) component, the (C) component, and the (D) component, and an equivalent ratio between thiol groups in the compound of the (B) component and Si in the silane coupling agent of the (D) is 1:0.
    Type: Application
    Filed: September 1, 2016
    Publication date: September 20, 2018
    Inventors: Fuminori ARAI, Kazuki IWAYA
  • Patent number: 9926405
    Abstract: A resin composition containing (A) an epoxy resin; (B) a compound represented by formula (1) below; (C) a curing accelerator; and (D) a silane coupling agent is provided. The compound of the (B) component has a content of 1:0.5 to 1:2.5, in terms of an equivalent ratio between epoxy groups in the epoxy resin of the (A) component and thiol groups in the compound of the (B) component, the silane coupling agent of the (D) component has a content of 0.2 parts by mass to 50 parts by mass with respect to 100 parts by mass in total of the (A) component, the (B) component, the (C) component, and the (D) component, and an equivalent ratio between thiol groups in the compound of the (B) component and Si in the silane coupling agent of the (D) is 1:0.002 to 1:1.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: March 27, 2018
    Assignee: NAMICS CORPORATION
    Inventors: Kazuki Iwaya, Fuminori Arai
  • Publication number: 20180051128
    Abstract: There is provided a resin composition which can be thermoset at a temperature of approximately 80° C., and has excellent PCT resistance and a long pot life. This resin composition is suitable as a one-component adhesive agent to be used during the manufacture of image sensor modules or electronic components. The resin composition according to the present invention is a resin composition having the following characteristics. The resin composition includes (A) a compound represented by formula (1) below, an oligomer having as its basic skeleton a structure represented by formula (2) below, (C) an epoxy resin, and (D) a curing accelerator. The mass ratio ((B)/(A)) between the compound of the (A) component and the oligomer of the (B) component is 5 to 25%. Furthermore, the total content of the compound of the (A) component and the oligomer of the (B) component is 0.5 equivalents to 2.
    Type: Application
    Filed: March 10, 2016
    Publication date: February 22, 2018
    Inventors: Kazuki IWAYA, Fuminori ARAI, Akikazu MATSUDA, Naoto OKUMURA, Takeshi KUMANO
  • Publication number: 20180051127
    Abstract: The present invention is intended to provide a semiconductor device including adherends bonded with a cured product of an adhesive, the semiconductor device being configured such that a decrease in bonding strength after curing in a moisture resistance test is suppressed. In this semiconductor device, at least two adherends 20 and 70, 70 and 60, 70 and 50 made of at least one material selected from the group consisting of engineering plastic, ceramics, and metal are bonded with a cured product 10 of an adhesive containing (A) thermosetting resin, (B) a particular thiol compound, and (C) a latent curing agent.
    Type: Application
    Filed: March 9, 2016
    Publication date: February 22, 2018
    Inventor: Fuminori ARAI
  • Publication number: 20180044478
    Abstract: There is provided a photocurable and thermosetting resin composition which suppresses decrease of adhesive strength in a moisture resistance test of the cured resin composition, and has a sufficiently long pot life. The resin composition includes (A) an acrylic resin, (B) a multifunctional nitrogen-containing heterocyclic compound represented by a specific chemical formula, (C) a latent curing agent, (D) a radical polymerization inhibitor, and (E) an anionic polymerization retarder. The resin composition preferably further includes (F) a compound having a glycidyl group, other than the acrylic resin.
    Type: Application
    Filed: March 8, 2016
    Publication date: February 15, 2018
    Inventors: Kazuki IWAYA, Fuminori ARAI
  • Publication number: 20170073459
    Abstract: A resin composition containing (A) an epoxy resin; (B) a compound represented by formula (1) below; (C) a curing accelerator; and (D) a silane coupling agent is provided. The compound of the (B) component has a content of 1:0.5 to 1:2.5, in terms of an equivalent ratio between epoxy groups in the epoxy resin of the (A) component and thiol groups in the compound of the (B) component, the silane coupling agent of the (D) component has a content of 0.2 parts by mass to 50 parts by mass with respect to 100 parts by mass in total of the (A) component, the (B) component, the (C) component, and the (D) component, and an equivalent ratio between thiol groups in the compound of the (B) component and Si in the silane coupling agent of the (D) is 1:0.002 to 1:1.
    Type: Application
    Filed: February 16, 2015
    Publication date: March 16, 2017
    Inventors: Kazuki IWAYA, Fuminori ARAI
  • Publication number: 20090202392
    Abstract: A pipette tip formed by a polypropylene substrate coated with a water repellent agent. The water repellent agent contains a silicone resin containing at least one specific substance selected from the group consisting of diisononyl phthalate, diisodecyl phthalate, trioctyl trimellitate and poly (1,3-butanediol adipate). The total mass of the specific substance is 1-30 mass % of the silicone resin.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 13, 2009
    Inventors: Hikaru URANO, Takeshi Igarashi, Shuichi Takahashi, Fuminori Arai
  • Patent number: 7022285
    Abstract: An integral multilayer analytical element for analysis of ammonia or ammonia-producing substance is provided, which comprises a thin liquid blocking layer having a comparative facility with a thicker liquid blocking layer and is stably fabricated on a common production line employed for different type of slides. In the integral multilayer analytical element for analysis of ammonia or ammonia-producing substance comprising a transparent support, an indicator layer containing an indicator which produces a detectable change by gaseous ammonia, a liquid blocking layer permitting a gaseous ammonia to pass through, a reagent layer containing an alkaline buffering agent and optionally a reagent capable of reacting with said ammonia-producing substance to produce ammonia, and a spreading layer, adhesively laminated in this order, the improvement which comprises that said liquid blocking layer is composed of at least two porous membranes.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: April 4, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takaki Arai, Fuminori Arai, Keiichi Ishizaki