Patents by Inventor Tatsuya Terada

Tatsuya Terada 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: 11174411
    Abstract: To provide a liquid composition whereby a resin powder can be uniformly dispersed in a resin or the like without being scattered, and a method for producing a film, a laminate or the like by using the liquid composition. The liquid composition comprises a liquid medium and a resin powder dispersed in the liquid medium, and characterized in that the average particle size of the resin powder is from 0.3 to 6 ?m, the volume-based cumulative 90% diameter of the resin powder is at most 8 ?m, and the resin powder is a resin containing a fluorinated copolymer having a specific functional group. And, the method is a method for producing a film, a laminate or the like by using the liquid composition.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: November 16, 2021
    Assignee: AGC Inc.
    Inventors: Tomoya Hosoda, Tatsuya Terada, Shigeki Kobayashi, Atsumi Yamabe
  • Patent number: 11065790
    Abstract: To provide a fluorinated copolymer composition having improved impact resistance and excellent moldability without impairing the excellent heat resistance and mechanical properties inherent to a thermoplastic heat-resistant resin. This fluorinated copolymer composition comprises a thermoplastic resin A being a melt-moldable heat-resistant thermoplastic resin and a fluorinated elastomer B being a fluorinated elastic copolymer, wherein the fluorinated elastomer B is dispersed in the thermoplastic resin A, the number average particle diameter of the fluorinated elastomer B is from 1 to 300 ?m, the volume ratio of the thermoplastic resin A to the fluorinated elastomer B is from 97:3 to 55:45, and the fluorinated copolymer composition has a flexural modulus of from 1,000 to 3,700 MPa.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: July 20, 2021
    Assignee: AGC Inc.
    Inventors: Takashi Sato, Tomoya Hosoda, Tatsuya Terada, Masatoshi Abe
  • Publication number: 20200317948
    Abstract: To provide a dispersion excellent in miscibility with varnish, coating properties, dispersibility and dispersion stability; and methods for producing a metal laminate and a printed board. A dispersion comprises an organic solvent and a powder so that the powder is dispersed in the organic solvent, wherein the powder is a powder containing a tetrafluoroethylene type polymer having a melt viscosity at 380° C. of from 1×102 to 1×106 Pa·s; the viscosity is from 50 to 10,000 mPa·s; and the thixotropy ratio calculated by dividing the viscosity measured under the condition of rotational speed of 30 rpm by the viscosity measured under the condition of rotational speed of 60 rpm, is from 1.0 to 2.2.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 8, 2020
    Applicant: AGC Inc.
    Inventors: Tatsuya Terada, Tomoya Hosoda, Atsumi Yamabe
  • Publication number: 20200048420
    Abstract: The purpose of the present invention is to provide a fluororesin film or fluororesin laminate excellent in heat resistance and excellent in interlayer adhesion to an object to be laminated, such as a prepreg, a method for producing a hot pressed laminate using said film or laminate, and a method for producing a printed circuit board. The fluororesin film contains a fluororesin having a melting point of from 260 to 380° C., and has an arithmetic average roughness Ra of at least 3.0 nm when inside of 1 ?m2 of at least one surface thereof in the thickness direction is measured by an atomic force microscope. The laminate 1 has a layer A10 containing said fluororesin and a layer B12 made of another substrate, wherein the layer A10 has an arithmetic average roughness Ra of at least 3.0 nm when inside of 1 ?m2 of a second surface 10b thereof is measured by an atomic force microscope.
    Type: Application
    Filed: October 23, 2019
    Publication date: February 13, 2020
    Applicant: AGC Inc.
    Inventors: Tomoya HOSODA, Tatsuya TERADA, Atsumi YAMABE, Nobutaka KIDERA, Wataru KASAI
  • Patent number: 10507631
    Abstract: To provide a laminate having a fluororesin layer and a thermoplastic resin layer laminated with a good adhesive strength. A method for producing a laminate, comprising carrying out heat lamination of a fluororesin film containing the following fluororesin (A) and a thermoplastic resin film containing a thermoplastic resin (B) having a melting point higher by at least 5° C. than the melting point of the fluororesin (A), at a temperature of at least a melting point of the fluororesin (A) and lower than a melting point of the thermoplastic resin (B). The fluororesin (A) is a fluororesin having at least one functional group selected from the group consisting of a carbonyl group-containing group, a hydroxy group, an epoxy group and an isocyanate group, and having a melt flow rate of from 0.5 to 30 g/10 min at 372° C. under a load of 49N.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: December 17, 2019
    Assignee: AGC Inc.
    Inventors: Tatsuya Terada, Toru Sasaki
  • Patent number: 10448506
    Abstract: To provide a wiring substrate having excellent transmission characteristics, of which initial failure of a plating layer formed on an inner wall surface of a hole is suppressed regardless of the type of the pre-treatment applied to the inner wall surface of the hole, and of which the plating layer has favorable heat resistance, and a process for producing it.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: October 15, 2019
    Assignee: AGC Inc.
    Inventors: Tomoya Hosoda, Tatsuya Terada
  • Publication number: 20190144700
    Abstract: To provide a liquid composition whereby a resin powder can be uniformly dispersed in a resin or the like without being scattered, and a method for producing a film, a laminate or the like by using the liquid composition. The liquid composition comprises a liquid medium and a resin powder dispersed in the liquid medium, and characterized in that the average particle size of the resin powder is from 0.3 to 6 ?m, the volume-based cumulative 90% diameter of the resin powder is at most 8 ?m, and the resin powder is a resin containing a fluorinated copolymer having a specific functional group. And, the method is a method for producing a film, a laminate or the like by using the liquid composition.
    Type: Application
    Filed: January 16, 2019
    Publication date: May 16, 2019
    Applicant: AGC Inc.
    Inventors: Tomoya HOSODA, Tatsuya Terada, Shigeki Kobayashi, Atsumi Yamabe
  • Publication number: 20190141833
    Abstract: To provide a wiring substrate having excellent transmission characteristics, of which initial failure of a plating layer formed on an inner wall surface of a hole is suppressed regardless of the type of the pre-treatment applied to the inner wall surface of the hole, and of which the plating layer has favorable heat resistance, and a process for producing it.
    Type: Application
    Filed: January 3, 2019
    Publication date: May 9, 2019
    Applicant: AGC Inc.
    Inventors: Tomoya HOSODA, Tatsuya TERADA
  • Patent number: 10271428
    Abstract: To produce a wiring substrate having excellent electrical characteristics with conduction failure in a hole formed in a layer made of a fluororesin material sufficiently suppressed without conducting an etching treatment using metal sodium. A process for producing a wiring substrate, which comprises forming a hole in a laminate comprising a first conductor layer, a layer (A) which is made of a fluororesin material containing a melt-moldable fluororesin having specific functional groups and a reinforcing fiber substrate and which has a dielectric constant from 2.0 to 3.5, a second conductor layer, an adhesive layer and a layer (B) made of a cured product of a thermosetting resin laminated in this order, applying, to an inner wall surface of the hole, either one or both of a treatment with a permanganic acid solution and a plasma treatment without conducting an etching treatment using metal sodium, and then forming a plating layer.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: April 23, 2019
    Assignee: AGC Inc.
    Inventors: Tomoya Hosoda, Toru Sasaki, Nobutaka Kidera, Tatsuya Terada
  • Publication number: 20190100635
    Abstract: To provide a method for producing a liquid composition, whereby agglomeration of the resin powder is suppressed even at a low viscosity and it is possible to obtain a uniformly dispersed liquid composition, and a method for producing a film, etc. by using the method for producing a liquid composition. The method for producing a liquid composition comprises heat-treating a mixture comprising a resin powder having an average particle size of from 0.02 to 200 ?m made from a powder material containing a fluorinated polymer having a specific functional group, a binder component having a reactive group reactive with the functional group of the resin powder, and a liquid medium capable of dissolving the binder component, to obtain a liquid composition, of which the viscosity change rate to the viscosity before heating is from 5 to 200%. Further, the method for producing a film, etc. uses the liquid composition obtained by the method for producing a liquid composition.
    Type: Application
    Filed: December 3, 2018
    Publication date: April 4, 2019
    Applicant: AGC INC.
    Inventors: Tomoya HOSODA, Tatsuya TERADA
  • Publication number: 20190055390
    Abstract: To provide a fluorinated copolymer composition having improved impact resistance and excellent moldability without impairing the excellent heat resistance and mechanical properties inherent to a thermoplastic heat-resistant resin. This fluorinated copolymer composition comprises a thermoplastic resin A being a melt-moldable heat-resistant thermoplastic resin and a fluorinated elastomer B being a fluorinated elastic copolymer, wherein the fluorinated elastomer B is dispersed in the thermoplastic resin A, the number average particle diameter of the fluorinated elastomer B is from 1 to 300 ?m, the volume ratio of the thermoplastic resin A to the fluorinated elastomer B is from 97:3 to 55:45, and the fluorinated copolymer composition has a flexural modulus of from 1,000 to 3,700 MPa.
    Type: Application
    Filed: October 24, 2018
    Publication date: February 21, 2019
    Applicant: AGC Inc.
    Inventors: Takashi Sato, Tomoya Hosoda, Tatsuya Terada, Masatoshi Abe
  • Publication number: 20190030870
    Abstract: To provide a laminate having a fluororesin layer and a thermoplastic resin layer laminated with a good adhesive strength. A method for producing a laminate, comprising carrying out heat lamination of a fluororesin film containing the following fluororesin (A) and a thermoplastic resin film containing a thermoplastic resin (B) having a melting point higher by at least 5° C. than the melting point of the fluororesin (A), at a temperature of at least a melting point of the fluororesin (A) and lower than a melting point of the thermoplastic resin (B). The fluororesin (A) is a fluororesin having at least one functional group selected from the group consisting of a carbonyl group-containing group, a hydroxy group, an epoxy group and an isocyanate group, and having a melt flow rate of from 0.5 to 30 g/10 min at 372° C. under a load of 49N.
    Type: Application
    Filed: October 5, 2018
    Publication date: January 31, 2019
    Applicant: AGC Inc.
    Inventors: Tatsuya Terada, Toru Sasaki
  • Patent number: 10087321
    Abstract: A fluorinated resin composition includes a copolymer (A); and a copolymer (B). A mass ratio (A/B) of the copolymer (A) to the copolymer (B) is from 60/40 to 99/1, and a volume flow rate is from 0.5 to 100 mm3/sec. The copolymer (A) comprises: units derived from a monomer (a) which is tetrafluoroethylene; units derived from a monomer (b) which is at least one member selected from ethylene, hexafluoropropylene and a perfluoro(alkyl vinyl ether). The copolymer (A) has carbonyl groups. The copolymer (B) comprises: units derived from the monomer (a); units derived from the monomer (b); and units derived from the monomer (c) having two or more polymerizable carbon-carbon double bonds. A content of the units derived from the monomer (c) is from 0.1 to 2 mol % based on total units in the copolymer (B).
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: October 2, 2018
    Assignee: AGC Inc.
    Inventors: Tatsuya Terada, Takashi Sato
  • Publication number: 20180213641
    Abstract: To produce a wiring substrate having excellent electrical characteristics with conduction failure in a hole formed in a layer made of a fluororesin material sufficiently suppressed without conducting an etching treatment using metal sodium. A process for producing a wiring substrate 1, which comprises forming a hole 20 in a laminate comprising a first conductor layer 12, a layer (A) 10 which is made of a fluororesin material containing a melt-moldable fluororesin (a) having specific functional groups and a reinforcing fiber substrate and which has a dielectric constant of from 2.0 to 3.
    Type: Application
    Filed: March 20, 2018
    Publication date: July 26, 2018
    Applicant: Asahi Glass Company, Limited
    Inventors: Tomoya HOSODA, Toru Sasaki, Nobutaka Kidera, Tatsuya Terada
  • Publication number: 20180213637
    Abstract: To provide a process for producing a wiring substrate with conduction failure in a hole formed in an electrical insulator layer suppressed even without conducting an etching treatment using metal sodium, and with unexpected deformation such as warpage suppressed even when the electrical insulator layer contains no woven fabric or non-woven fabric comprising reinforcing fibers. A process for producing a wiring substrate 1, which comprises forming a hole 20 in a laminate comprising a first conductor layer 12, an electrical insulator layer 10 which contains a specific fluororesin layer (A) 16 and a heat resistant resin layer (B) 18, contains no reinforcing fiber to substrate, and has a dielectric constant of from 2.0 to 3.5 and a linear expansion coefficient of from 0 to 35 ppm/° C.
    Type: Application
    Filed: March 20, 2018
    Publication date: July 26, 2018
    Applicant: Asahi Glass Company, Limited
    Inventors: Tomoya HOSODA, Toru SASAKI, Nobutaka KIDERA, Tatsuya TERADA
  • Patent number: 9879107
    Abstract: A fluorinated copolymer excellent in adhesion and elongation deformation processability. This fluorinated copolymer has carbonyl groups, its melting point is from 120 to 230° C., the ratio (X/W) of the melt tension X (N) to the load W (N) at the time of measuring the melt tension X, is from 0.5×10?4 to 2.0×10?4, it contains units derived from the following monomers (a), (b), and (c), the molar ratio of the units derived from the monomer (a) to the units derived from the monomer (b) is from 30/70 to 70/30, and the total content of the units derived from the monomer (a) and the units derived from the monomer (b) is from 80 to 99.995 mol % based on the total of all units (a), (b) and (c): Monomer (a): tetrafluoroethylene; Monomer (b): ethylene; Monomer (c): a monomer having two or more polymerizable carbon-carbon double bonds.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: January 30, 2018
    Assignee: Asahi Glass Company, Limited
    Inventor: Tatsuya Terada
  • Publication number: 20170101529
    Abstract: To provide a fluororesin composition excellent in elongation deformability and excellent in mechanical strength of its molded product. The fluororesin composition comprises: a copolymer (A) comprising units derived from a monomer (a), units derived from a monomer (b) and units derived from a monomer (c); and a copolymer (B) comprising units derived from the monomer (a) and units derived from the monomer (b) but containing substantially no units derived from the monomer (c). In the copolymer (A), the molar ratio of units derived from the monomer (a) to units derived from the monomer (b) is from 20/80 to 80/20; the proportion of units derived from the monomer (c) to all units is from 0.2 to 3 mol %; MFR is at most 0.5 dg/min; the proportion of the copolymer (A) to the total of the copolymer (A) and the copolymer (B) is from 4 to 30 mass %; and fish eyes are present in an amount of less than 200 fish eyes per square meter.
    Type: Application
    Filed: December 16, 2016
    Publication date: April 13, 2017
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Tatsuya TERADA, Takashi Sato
  • Publication number: 20170066915
    Abstract: To provide a fluorinated resin composition excellent in adhesion and elongation deformation processability. The fluorinated resin composition is characterized by comprising the following copolymer (A) and the following copolymer (B), wherein the mass ratio (A/B) of the following copolymer (A) to the following copolymer (B) is from 60/40 to 99/1, and the following volume flow rate is from 0.5 to 100 mm3/sec.: Copolymer (A): a copolymer comprising units derived from the following monomer (a) and units derived from the following monomer (b), and optionally containing units derived from the following monomer (c), wherein the content of the units derived from the following monomer (c) is from 0 to 0.
    Type: Application
    Filed: November 17, 2016
    Publication date: March 9, 2017
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Tatsuya TERADA, Takashi SATO
  • Publication number: 20170066861
    Abstract: To provide a fluorinated copolymer excellent in adhesion and elongation deformation processability. This fluorinated copolymer is characterized in that it has carbonyl groups, its melting point is from 120 to 230° C., the ratio (X/W) of the melt tension X (N) to the load W (N) at the time of measuring the melt tension X, is from 0.5×10?4 to 2.0×10?4 [N/N], it comprises units derived from the following monomer (a), units derived from the following monomer (b), and units derived from the following monomer (c), the molar ratio ([units derived from monomer (a)]/[units derived from monomer (b)]) of the units derived from the monomer (a) to the units derived from the monomer (b) is from 30/70 to 70/30, and the total content of the units derived from the monomer (a) and the units derived from the monomer (b) is from 80 to 99.995 mol % based on the total of all units: Monomer (a): tetrafluoroethylene. Monomer (b): ethylene. Monomer (c): a monomer having two or more polymerizable carbon-carbon double bonds.
    Type: Application
    Filed: November 17, 2016
    Publication date: March 9, 2017
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventor: Tatsuya TERADA
  • Publication number: 20160064115
    Abstract: To provide a wire coating resin material comprising an ETFE type copolymer, capable of forming a coating layer which is excellent in thermal stress cracking resistance and has good mechanical properties, and an electric wire having a coating layer which is excellent in thermal stress cracking resistance and has good mechanical properties. A wire coating resin material comprising a resin component (X) composed of at least one type of a copolymer (A) which has units derived from tetrafluoroethylene and units derived from ethylene, wherein at least one type of the copolymer (A) is a copolymer (A1) which further has units derived from a monomer having at least two polymerizable carbon-carbon double bonds or units derived from a monomer having a radical generating group; the strain hardening rate (parameter showing the degree of strain hardening such that the elongational viscosity deviates from a linear region and sharply increases in a high strain region) of the resin component (X) is from 0.1 to 0.
    Type: Application
    Filed: November 4, 2015
    Publication date: March 3, 2016
    Applicant: Asahi Glass Company, Limited
    Inventors: Tatsuya TERADA, Eiichi NISHI, Takashi SATO