Patents by Inventor Hironobu Fujimoto

Hironobu Fujimoto 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: 11884596
    Abstract: The present invention aims to provide a method for producing granules for ceramic production, the method having high productivity and making it possible to obtain a ceramic which, when produced by press molding the granules and firing the resulting press molded product, has physical properties kept from lowering. The present invention is characterized by including: a slurry preparation step of preparing a slurry including a mixture containing a powder of an inorganic compound, a binder, and a solvent; a granulation step of introducing the slurry into a spray drying device to form a granulated substance containing the inorganic compound; an exhaust step of exhausting an atmospheric gas within the spray drying device via a cyclone having a surface made of ceramic; and a step of mixing a fine powder, which has been recovered by the cyclone during the exhaust step, with the granulated substance obtained in the granulation step.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: January 30, 2024
    Assignee: TOKUYAMA CORPORATION
    Inventors: Hironobu Fujimoto, Tsuyoshi Ikeda
  • Publication number: 20210221745
    Abstract: The present invention aims to provide a method for producing granules for ceramic production, the method having high productivity and making it possible to obtain a ceramic which, when produced by press molding the granules and firing the resulting press molded product, has physical properties kept from lowering. The present invention is characterized by including: a slurry preparation step of preparing a slurry including a mixture containing a powder of an inorganic compound, a binder, and a solvent; a granulation step of introducing the slurry into a spray drying device to form a granulated substance containing the inorganic compound; an exhaust step of exhausting an atmospheric gas within the spray drying device via a cyclone having a surface made of ceramic; and a step of mixing a fine powder, which has been recovered by the cyclone during the exhaust step, with the granulated substance obtained in the granulation step.
    Type: Application
    Filed: June 24, 2019
    Publication date: July 22, 2021
    Applicant: TOKUYAMA CORPORATION
    Inventors: Hironobu FUJIMOTO, Tsuyoshi IKEDA
  • Patent number: 9534151
    Abstract: A sheet is produced by curing an energy ray curable composition which includes a urethane acrylate oligomer and a compound having a thiol group in the molecule. The sheet has heat resistance to prevent outgassing.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: January 3, 2017
    Assignees: LINTEC Corporation, Arakawa Chemical Industries, LTD
    Inventors: Hironobu Fujimoto, Tsutomu Iida, Tomohide Fukuzaki
  • Publication number: 20150303093
    Abstract: An adhesive sheet includes a substrate film and an adhesive layer which is provided on the substrate film, wherein the substrate film is composed of an energy ray curable composition being formed into a film and cured, the composition including an energy ray curable resin and an ion liquid having ethylenically unsaturated bonds.
    Type: Application
    Filed: November 1, 2013
    Publication date: October 22, 2015
    Inventor: Hironobu Fujimoto
  • Patent number: 9102833
    Abstract: Provided is a curable resin composition comprising a thermoplastic resin (A) that includes a cyclic structure in its main chain, and has a glass transition temperature (Tg) of 140° C. or more, and a monofunctional curable monomer (B). The present invention provides: a cured resin formed article that has heat resistance and low birefringence, a method for producing the same, a curable resin composition and a curable resin formed article that are useful as a raw material for producing the cured resin formed article, and a laminate that includes a layer formed of a cured resin.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: August 11, 2015
    Assignee: LINTEC CORPORATION
    Inventors: Masaharu Ito, Wataru Iwaya, Hironobu Fujimoto, Naoki Taya
  • Patent number: 9023913
    Abstract: The present invention is: a curable resin composition comprising a thermoplastic resin (A), a curable monomer (B), and a photoinitiator (C), the thermoplastic resin (A) including an aromatic ring in its molecule, and having a glass transition temperature (Tg) of 140° C. or more, and the photoinitiator (C) having an absorbance at 380 nm of 0.4 or more when measured in a 0.1 mass % acetonitrile solution; a curable resin formed article obtained by forming the curable resin composition; a cured resin formed article obtained by curing the curable resin formed article; a laminate comprising at least one layer that is formed of a cured resin obtained by curing the curable resin composition. The present invention provides: a cured resin formed article that exhibits excellent heat resistance, includes only a small amount of residual low-boiling-point substance (e.g.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: May 5, 2015
    Assignee: Lintec Corporation
    Inventors: Masaharu Ito, Wataru Iwaya, Hironobu Fujimoto, Naoki Taya
  • Publication number: 20150111032
    Abstract: A film is obtained by forming a film of and curing an energy ray-curable composition comprising a polymerizable silicone compound and an energy ray-curable resin having a viscosity at 25° C. of 100-5,000,000 mPa·S.
    Type: Application
    Filed: March 19, 2013
    Publication date: April 23, 2015
    Applicant: LINTEC CORPORATION
    Inventor: Hironobu Fujimoto
  • Publication number: 20140364531
    Abstract: The present invention is: a curable resin composition comprising a thermoplastic resin (A), a curable monomer (B), and a photoinitiator (C), the thermoplastic resin (A) including an aromatic ring in its molecule, and having a glass transition temperature (Tg) of 140° C. or more, and the photoinitiator (C) having an absorbance at 380 nm of 0.4 or more when measured in a 0.1 mass % acetonitrile solution; a curable resin formed article obtained by forming the curable resin composition; a cured resin formed article obtained by curing the curable resin formed article; a laminate comprising at least one layer that is formed of a cured resin obtained by curing the curable resin composition. The present invention provides: a cured resin formed article that exhibits excellent heat resistance, includes only a small amount of residual low-boiling-point substance (e.g.
    Type: Application
    Filed: December 11, 2012
    Publication date: December 11, 2014
    Inventors: Masaharu Ito, Wataru Iwaya, Hironobu Fujimoto, Naoki Taya
  • Publication number: 20140350187
    Abstract: Provided is a curable resin composition comprising a thermoplastic resin (A) that includes a cyclic structure in its main chain, and has a glass transition temperature (Tg) of 140° C. or more, and a monofunctional curable monomer (B). The present invention provides: a cured resin formed article that has heat resistance and low birefringence, a method for producing the same, a curable resin composition and a curable resin formed article that are useful as a raw material for producing the cured resin formed article, and a laminate that includes a layer formed of a cured resin.
    Type: Application
    Filed: December 11, 2012
    Publication date: November 27, 2014
    Applicant: LINTEC CORPORATION
    Inventors: Masaharu Ito, Wataru Iwaya, Hironobu Fujimoto, Naoki Taya
  • Publication number: 20140308494
    Abstract: The present invention provides: a gas barrier film comprising a cured resin layer and a gas barrier layer, the gas barrier layer being provided on at least one side of the cured resin layer, the cured resin layer being a layer formed of a cured product of a curable resin composition that includes (A) a thermoplastic resin having a glass transition temperature (Tg) of 140° C. or more, and (B) a curable monomer, the gas barrier film having a water vapor transmission rate of 1 g/m2/day or less at a temperature of 40° C. and a relative humidity of 90%; a method for producing the gas barrier film; a gas barrier film laminate comprising the gas barrier film; an electronic device member comprising the gas barrier film; an electronic device member comprising the gas barrier film laminate; an electronic device comprising the electronic device member.
    Type: Application
    Filed: November 2, 2012
    Publication date: October 16, 2014
    Inventors: Wataru Iwaya, Hironobu Fujimoto, Naoki Taya, Masaharu Ito, Takeshi Kondo
  • Patent number: 8212345
    Abstract: A backgrinding machine 10 of a semiconductor wafer W includes: a table 13 set on the working plane of a mount 11; a multiple number of holding jigs 20 arranged via check tables 15 on table 13; a grinding machine 30 for performing a grinding process of the rear side of semiconductor wafer W held by holding jig 20; and a washing device 40 for ground semiconductor wafers W. Each holding jig 20 is constructed of a concave 22 depressed on the surface of a base plate 21, a multiple number of supporting projections 23 projectively arrayed on the bottom surface of concave 22, a deformable contact film 24, covering the concave 22, being supported by the multiple supporting projections 23, for detachably holding semiconductor wafer W in close contact with it; and an exhaust path 25 for conducting air from the concave 22 covered by contact film 24 to the outside.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: July 3, 2012
    Assignees: Shin-Etsu Polymer Co., Ltd., Lintec Corporation
    Inventors: Kiyofumi Tanaka, Satoshi Odashima, Noriyoshi Hosono, Hironobu Fujimoto, Takeshi Segawa
  • Patent number: 8182649
    Abstract: It is an object to provide a fixing jig which can unmovably suction a chip group produced by segmenting a semiconductor wafer into pieces, and can suction one chip by detaching the chip selectively and reliably from the chip group. A fixing jig 3 is composed of a jig base 30 and an contact layer 31. A concave part 2 is formed on one side of the jig base 30. The concave part 2 is sectioned into small chambers 15 by a partition 12 having a height almost equivalent to that of a sidewall 35. The contact layer 31 is disposed on the upper edge of the sidewall 35 and the partition 12 for covering the concave part 2. A through hole 17 that is communicated with the outside is formed in each small chamber 15.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: May 22, 2012
    Assignee: Lintec Corporation
    Inventors: Kenichi Watanabe, Takeshi Segawa, Hironobu Fujimoto
  • Publication number: 20110281509
    Abstract: A backgrinding machine 10 of a semiconductor wafer W includes: a table 13 set on the working plane of a mount 11; a multiple number of holding jigs 20 arranged via check tables 15 on table 13; a grinding machine 30 for performing a grinding process of the rear side of semiconductor wafer W held by holding jig 20; and a washing device 40 for ground semiconductor wafers W. Each holding jig 20 is constructed of a concave 22 depressed on the surface of a base plate 21, a multiple number of supporting projections 23 projectively arrayed on the bottom surface of concave 22, a deformable contact film 24, covering the concave 22, being supported by the multiple supporting projections 23, for detachably holding semiconductor wafer W in close contact with it; and an exhaust path 25 for conducting air from the concave 22 covered by contact film 24 to the outside.
    Type: Application
    Filed: November 12, 2010
    Publication date: November 17, 2011
    Applicants: Lintec Corporation, Shin-Etsu Polymer Co., Ltd.
    Inventors: KIYOFUMI TANAKA, Satoshi Odashima, Noriyoshi Hosono, Hironobu Fujimoto, Takeshi Segawa
  • Publication number: 20110070433
    Abstract: A sheet is produced by curing an energy ray curable composition which includes a urethane acrylate oligomer and a compound having a thiol group in the molecule. The sheet has heat resistance to prevent outgassing.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 24, 2011
    Applicants: LINTEC CORPORATION, ARAKAWA CHEMICAL INDUSTRIES, LTD.
    Inventors: Hironobu Fujimoto, Tsutomu Iida, Tomohide Fukuzaki
  • Patent number: 7875501
    Abstract: A backgrinding machine 10 of a semiconductor wafer W includes: a table 13 set on the working plane of a mount 11; a multiple number of holding jigs 20 arranged via check tables 15 on table 13; a grinding machine 30 for performing a grinding process of the rear side of semiconductor wafer W held by holding jig 20; and a washing device 40 for ground semiconductor wafers W. Each holding jig 20 is constructed of a concave 22 depressed on the surface of a base plate 21, a multiple number of supporting projections 23 projectively arrayed on the bottom surface of concave 22, a deformable contact film 24, covering the concave 22, being supported by the multiple supporting projections 23, for detachably holding semiconductor wafer W in close contact with it; and an exhaust path 25 for conducting air from the concave 22 covered by contact film 24 to the outside.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: January 25, 2011
    Assignees: Shin-Etsu Polymer Co., Ltd., Lintec Corporation
    Inventors: Kiyofumi Tanaka, Satoshi Odashima, Noriyoshi Hosono, Hironobu Fujimoto, Takeshi Segawa
  • Publication number: 20100314894
    Abstract: It is an object to provide a fixing jig which can unmovably suction a chip group produced by segmenting a semiconductor wafer into pieces, and can suction one chip by detaching the chip selectively and reliably from the chip group. A fixing jig 3 is composed of a jig base 30 and an contact layer 31. A concave part 2 is formed on one side of the jig base 30. The concave part 2 is sectioned into small chambers 15 by a partition 12 having a height almost equivalent to that of a sidewall 35. The contact layer 31 is disposed on the upper edge of the sidewall 35 and the partition 12 for covering the concave part 2. A through hole 17 that is communicated with the outside is formed in each small chamber 15.
    Type: Application
    Filed: October 12, 2007
    Publication date: December 16, 2010
    Applicant: LINTEC CORPORATION
    Inventors: Kenichi Watanabe, Takeshi Segawa, Hironobu Fujimoto
  • Publication number: 20100289283
    Abstract: A method is provided for picking up a chip 13 from a fixing jig 3 to which the chip 13 is fixed. The fixing jig 3 consists of a jig base 30 having a plurality of protrusions 36 on one side and a sidewall 35 having a height almost equivalent to that of the protrusion 36 at the outer circumference of the one side, and an contact layer 31 that is laminated on the surface of the jig base 30 having the protrusions 36 and that is bonded on the upper surface of the sidewall 35. A section space 37 is formed on the surface of the jig base 30 having the protrusions by the contact layer 31, the protrusions 36 and the sidewall 35, and at least one through hole 38 penetrating the outside and the section space 37 is provided in the jig base 30.
    Type: Application
    Filed: October 12, 2007
    Publication date: November 18, 2010
    Applicant: LINTEC CORPORATION
    Inventors: Kenichi Watanabe, Takeshi Segawa, Hironobu Fujimoto
  • Publication number: 20090081852
    Abstract: A backgrinding machine 10 of a semiconductor wafer W includes: a table 13 set on the working plane of a mount 11; a multiple number of holding jigs 20 arranged via check tables 15 on table 13; a grinding machine 30 for performing a grinding process of the rear side of semiconductor wafer W held by holding jig 20; and a washing device 40 for ground semiconductor wafers W. Each holding jig 20 is constructed of a concave 22 depressed on the surface of a base plate 21, a multiple number of supporting projections 23 projectively arrayed on the bottom surface of concave 22, a deformable contact film 24, covering the concave 22, being supported by the multiple supporting projections 23, for detachably holding semiconductor wafer W in close contact with it; and an exhaust path 25 for conducting air from the concave 22 covered by contact film 24 to the outside.
    Type: Application
    Filed: March 9, 2007
    Publication date: March 26, 2009
    Applicants: SHIN-ETSU POLYMER CO., LTD., LINTEC CORPORATION
    Inventors: Kiyofumi Tanaka, Satoshi Odashima, Noriyoshi Hosono, Hironobu Fujimoto, Takeshi Segawa