Patents by Inventor Tetsuro Ikeda

Tetsuro Ikeda 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: 11842680
    Abstract: A semiconductor device includes the following: a light measuring instrument disposed opposite the display surface of a display panel provided with a self-emission element, and disposed for measuring the ambient-light illuminance of the display panel; a storage device configured to store a plurality of first measurements measured by the light measuring instrument in synchronization with a synchronizing signal of the display panel during a plurality of first measurement periods that are shorter than an ON/OFF period of the self-emission element; and a calculation unit configured to calculate the light emission illuminance of the self-emission element in accordance with the plurality of first measurements stored in the storage device, and configured to calculate the ambient-light illuminance by subtracting a value based on the light emission illuminance from a second measurement measured by the light measuring instrument during a second measurement period that is longer than the plurality of first measurement pe
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: December 12, 2023
    Assignee: Sharp Semiconductor Innovation Corporation
    Inventors: Isamu Kawabe, Takahiro Inoue, Takayuki Shimizu, Kohji Hamaguchi, Tetsuro Ikeda
  • Patent number: 11760077
    Abstract: Provided is a laminate that includes a thin glass film and is hence excellent in flexibility, and that is excellent in puncture resistance. A laminate for an image display apparatus of the present invention includes: a glass film; and a resin layer arranged on one side of the glass film, wherein the glass film has a thickness of more than 50 ?m and 150 ?m or less, wherein the laminate for an image display apparatus has a puncture strength measured in conformity with JIS Z 1707:1997 of more than 2 kg and 50 kg or less, and wherein the laminate for an image display apparatus has a bending radius of from 15 mm to 200 mm.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: September 19, 2023
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takeshi Murashige, Junichi Inagaki, Akiko Sugino, Tetsuro Ikeda
  • Publication number: 20220106500
    Abstract: An active-energy-ray-curable adhesive composition comprises at least one or more radical polymerizable compounds. At the time of defining a total amount of the radical polymerizable compound(s) as 100% by weight, the composition comprises one or more alkyl (meth)acrylates (A) (each) having 10 to 20 carbon atoms in an amount of 15% or more by weight. The active-energy-ray-curable adhesive composition preferably comprises, as the alkyl (meth)acrylate(s) (A), an alkyl (meth)acrylate (A1) having 10 to 14 carbon atoms, and an alkyl (meth)acrylate (A2) having 15 to 20 carbon atoms. A ratio by weight of the component (A1) to the component (A2) (A1/A2) is preferably from 1.0/9.0 to 4.0/6.0.
    Type: Application
    Filed: June 23, 2021
    Publication date: April 7, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masayuki Okamoto, Satoshi Mita, Yoshimi Konno, Taiyan Jiang, Tetsuro Ikeda
  • Publication number: 20210317337
    Abstract: An active-energy-ray-curable adhesive composition comprises at least radical polymerizable compounds. The radical polymerizable compounds comprise a component A having a log Pow of ?2 to 2, and a component B having a log Pow more than 7, each of these log Pow values representing an octanol/water distribution coefficient. The component A preferably comprises at least one nitrogen-containing monomer selected from the group consisting of (meth)acrylamide derivatives, amino-group-containing monomers, and nitrogen-containing and heterocycle-containing vinyl monomers. The component B preferably comprises an alkyl (eth)acrylate having 18 to 20 carbon atoms.
    Type: Application
    Filed: June 21, 2021
    Publication date: October 14, 2021
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masayuki Okamoto, Satoshi Mita, Yoshimi Konno, Taiyan Jiang, Tetsuro Ikeda
  • Patent number: 11046719
    Abstract: An organic metal compound-containing composition, comprising: at least one organic metal compound (A) selected from the group consisting of metal alkoxides and metal chelates, and a polymerizable compound (B) having a polymerizable functional group and a carboxyl group.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: June 29, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Ryo Kanno, Tatsuya Yamasaki, Yuto Saruhashi, Ryuta Tomoyose, Takeshi Saito, Tetsuro Ikeda
  • Publication number: 20210178740
    Abstract: Provided is a laminate that includes a thin glass film and is hence excellent in flexibility, and that is excellent in puncture resistance. A laminate for an image display apparatus of the present invention includes: a glass film; and a resin layer arranged on one side of the glass film, wherein the glass film has a thickness of more than 50 ?m and 150 ?m or less, wherein the laminate for an image display apparatus has a puncture strength measured in conformity with JIS Z 1707:1997 of more than 2 kg and 50 kg or less, and wherein the laminate for an image display apparatus has a bending radius of from 15 mm to 200 mm.
    Type: Application
    Filed: October 25, 2018
    Publication date: June 17, 2021
    Applicant: NITTO DENKO CORPORATION
    Inventors: Takeshi Murashige, Junichi Inagaki, Akiko Sugino, Tetsuro Ikeda
  • Patent number: 10901129
    Abstract: A polarizing film, wherein transparent protective films are laid, respectively, on/over both surfaces of a polarizer to interpose an adhesive layer (a) and an adhesive layer (b), respectively, between both the surfaces and the transparent protective films. The adhesive layer (a) has a glass transition temperature of ?60° C. or higher and lower than 40° C. The adhesive layer (b) has a glass transition temperature of 40° C. or higher. The adhesive layer (a) is a layer formed in the form of a cured product layer yielded by radiating an active energy ray to an active-energy-ray-curable adhesive composition (a). The active-energy-ray-curable adhesive composition (a) comprises at least one or more radical polymerizable compounds, and when a total amount of the radical polymerizable compound(s) is defined as 100% by weight, one or more alkyl (meth)acrylates (A) (each) having 10 to 20 carbon atoms are comprised in a proportion of 15% or more by weight.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: January 26, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Masayuki Okamoto, Satoshi Mita, Yoshimi Konno, Taiyan Jiang, Tetsuro Ikeda
  • Patent number: 10858553
    Abstract: A polarizing film, wherein transparent protective films are laid, respectively, on/over both surfaces of a polarizer to interpose an adhesive layer (a) and an adhesive layer (b), respectively, between both surfaces of a polarizer, and transparent protective films. The adhesive layer (a) on/over one of both the surfaces has a glass transition temperature of ?60° C. or higher and lower than 40° C. The adhesive layer (b) on/over the other surface has a glass transition temperature of 40° C. or higher. The adhesive layer (a) is a layer formed in the form of a cured product layer yielded by radiating an active energy ray to an active-energy-ray-curable adhesive composition (a). The active-energy-ray-curable adhesive composition (a) comprises, as radical polymerizable compounds, a component A having a logPow of ?2 to 2, and a component B having a logPow more than 7, these logPow values being each an octanol/water distribution coefficient.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: December 8, 2020
    Assignee: NITTO DENKO CORPORATION
    Inventors: Masayuki Okamoto, Satoshi Mita, Yoshimi Konno, Taiyan Jiang, Tetsuro Ikeda
  • Publication number: 20190309193
    Abstract: A pressure-sensitive-adhesive layer attached polarizing film comprises a polarizing film in which a transparent protective film is laid on/over at least one surface of a polarizer to interpose an adhesive layer between the surface and the transparent protective film, and a pressure-sensitive-adhesive layer laminated on a transparent protective film side of the polarizing film. The adhesive-layer-laid surface of the polarizer is subjected to an activating treatment. The adhesive layer is a cured product layer of an adhesive composition. The adhesive composition comprises an active-energy-ray-curable component, and a shrinkage inhibitor having a structural formula having an M-O bond wherein M is silicon, titanium, aluminum or zirconium, and O represents an oxygen atom.
    Type: Application
    Filed: June 26, 2017
    Publication date: October 10, 2019
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yasuaki Okada, Takeshi Saito, Keisuke Kimura, Tetsuro Ikeda
  • Publication number: 20190136101
    Abstract: A polarizing film, wherein transparent protective films are laid, respectively, on/over both surfaces of a polarizer to interpose an adhesive layer (a) and an adhesive layer (b), respectively, between both surfaces of a polarizer, and transparent protective films. The adhesive layer (a) on/over one of both the surfaces has a glass transition temperature of ?60° C. or higher and lower than 40° C. The adhesive layer (b) on/over the other surface has a glass transition temperature of 40° C. or higher. The adhesive layer (a) is a layer formed in the form of a cured product layer yielded by radiating an active energy ray to an active-energy-ray-curable adhesive composition (a). The active-energy-ray-curable adhesive composition (a) comprises, as radical polymerizable compounds, a component A having a logPow of ?2 to 2, and a component B having a logPow more than 7, these logPow values being each an octanol/water distribution coefficient.
    Type: Application
    Filed: March 6, 2017
    Publication date: May 9, 2019
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masayuki Okamoto, Satoshi Mita, Yoshimi Konno, Taiyan Jiang, Tetsuro Ikeda
  • Publication number: 20190136091
    Abstract: An active-energy-ray-curable adhesive composition comprises at least one or more radical polymerizable compounds. At the time of defining a total amount of the radical polymerizable compound(s) as 100% by weight, the composition comprises one or more alkyl (meth) acrylates (A) (each) having 10 to 20 carbon atoms in an amount of 15% or more by weight. The active-energy-ray-curable adhesive composition preferably comprises, as the alkyl (meth)acrylate(s) (A), an alkyl (meth)acrylate (A1) having 10 to 14 carbon atoms, and an alkyl (meth)acrylate (A2) having 15 to 20 carbon atoms. A ratio by weight of the component (A1) to the component (A2) (A1/A2) is preferably from 1.0/9.0 to 4.0/6.0.
    Type: Application
    Filed: March 6, 2017
    Publication date: May 9, 2019
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masayuki Okamoto, Satoshi Mita, Yoshimi Konno, Taiyan Jiang, Tetsuro Ikeda
  • Publication number: 20190137673
    Abstract: A polarizing film, wherein transparent protective films are laid, respectively, on/over both surfaces of a polarizer to interpose an adhesive layer (a) and an adhesive layer (b), respectively, between both the surfaces and the transparent protective films. The adhesive layer (a) has a glass transition temperature of -60° C. or higher and lower than 40° C. The adhesive layer (b) has a glass transition temperature of 40° C. or higher. The adhesive layer (a) is a layer formed in the form of a cured product layer yielded by radiating an active energy ray to an active-energy-ray-curable adhesive composition (a). The active-energy-ray-curable adhesive composition (a) comprises at least one or more radical polymerizable compounds, and when a total amount of the radical polymerizable compound(s) is defined as 100% by weight, one or more alkyl (meth)acrylates (A) (each) having 10 to 20 carbon atoms are comprised in a proportion of 15% or more by weight.
    Type: Application
    Filed: March 6, 2017
    Publication date: May 9, 2019
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masayuki Okamoto, Satoshi Mita, Yoshimi Konno, Taiyan Jiang, Tetsuro Ikeda
  • Publication number: 20190106599
    Abstract: An active-energy-ray-curable adhesive composition comprises at least radical polymerizable compounds. The radical polymerizable compounds comprise a component A having a log Pow of ?2 to 2, and a component B having a log Pow more than 7, each of these log Pow values representing an octanol/water distribution coefficient. The component A preferably comprises at least one nitrogen-containing monomer selected from the group consisting of (meth)acrylamide derivatives, amino-group-containing monomers, and nitrogen-containing and heterocycle-containing vinyl monomers. The component B preferably comprises an alkyl (meth)acrylate having 18 to 20 carbon atoms.
    Type: Application
    Filed: March 6, 2017
    Publication date: April 11, 2019
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masayuki Okamoto, Satoshi Mita, Yoshimi Konno, Taiyan Jiang, Tetsuro Ikeda
  • Publication number: 20190055432
    Abstract: A curing type adhesive composition for polarization film, contains an active energy ray curable component (X), at least one organometallic compound (A) selected from the group consisting of a metal alkoxide and a metal chelate, and a polymerizable compound (B) having a polymerizable functional group and a carboxyl group. It is preferred that a metal of the organometallic compound (A) is titanium. The curing type adhesive composition for polarizing film preferably contains, as the organometallic compound (A), the metal alkoxide, and an organic group which the metal alkoxide has having three or more carbon atoms. The curing type adhesive composition for polarizing film contains, as the organometallic compound (A), the metal chelate, an organic group which the metal chelate has having four or more carbon atoms.
    Type: Application
    Filed: September 29, 2016
    Publication date: February 21, 2019
    Applicant: NITTO DENKO CORPORATION
    Inventors: Ryo Kanno, Tatsuya Yamasaki, Yuto Saruhashi, Ryuta Tomoyose, Takeshi Saito, Tetsuro Ikeda
  • Publication number: 20180265526
    Abstract: An organic metal compound-containing composition, comprising: at least one organic metal compound (A) selected from the group consisting of metal alkoxides and metal chelates, and a polymerizable compound (B) having a polymerizable functional group and a carboxyl group.
    Type: Application
    Filed: September 29, 2016
    Publication date: September 20, 2018
    Applicant: NITTO DENKO CORPORATION
    Inventors: Ryo Kanno, Tatsuya Yamasaki, Yuto Saruhashi, Ryuta Tomoyose, Takeshi Saito, Tetsuro Ikeda
  • Publication number: 20180267211
    Abstract: There is provided a polarizer protective film excellent in both bending resistance and adhesiveness with a polarizer. A polarizer protective film according to an embodiment of the present invention includes: an acrylic resin; and reinforcing particles dispersed in the acrylic resin. The reinforcing particles have flat shapes, and have a length-to-thickness ratio of 7.0 or less.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 20, 2018
    Applicant: NITTO DENKO CORPORATION
    Inventors: Nobuyuki Haida, Shintaro Azuma, Masayuki Okamoto, Tetsuro Ikeda, Daigoro Nakagawa
  • Patent number: 9368663
    Abstract: The object of the present invention is to provide a solar cell sealing film obtained from a composition comprising chiefly ethylene-vinyl acetate copolymer and organic peroxides for giving crosslinked structure, which suppresses the occurrence of blisters without reduction of crosslink rate, even if the film contains silane-coupling agents for improving adhesive strength. The solar cell sealing film comprises ethylene-vinyl acetate copolymer, an organic peroxide, a silane-coupling agent, and a phosphite compound represented by formula (I): P(OR1)3??(I) wherein, R1 is a branched-chain aliphatic alkyl group having 8 to 14 carbon atoms, and three R1s are the same as or different from each other and further wherein the content of the vinyl acetate recurring unit of the ethylene-vinyl acetate copolymer is in the range of 20 to 35% by weight.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: June 14, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Tetsuro Ikeda, Hisataka Kataoka, Yoshihiko Inoue
  • Patent number: 9054236
    Abstract: The object of the present invention to provide a solar cell sealing film, which has superior durability that maintains adhesive performance for a long duration under the circumstances of a high temperature and high humidity, exerts high crosslink rate at production of the solar cells, and suppresses occurrence of blister, and a solar cell using the sealing film. The solar cell sealing film includes: ethylene-polar monomer copolymer, an organic peroxide, and a silane-coupling agent, wherein the silane-coupling agent is represented by formula (I): in which R1 represents alkyl group having 1 to 3 carbon atoms, three R1s are the same as or different from each other, and “n” is an integer of 1 to 8; and the silane-coupling agent is contained in the range of 0.02 to 1.0 parts by weight based on 100 parts by weight of the ethylene-polar monomer copolymer.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: June 9, 2015
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Hisataka Kataoka, Tetsuro Ikeda, Yoshihiko Inoue
  • Publication number: 20140296400
    Abstract: The object of the present invention is to provide a solar cell sealing film obtained from a composition comprising chiefly ethylene-vinyl acetate copolymer and organic peroxides for giving crosslinked structure, which suppresses the occurrence of blisters without reduction of crosslink rate, even if the film contains silane-coupling agents for improving adhesive strength. The solar cell sealing film comprises ethylene-vinyl acetate copolymer, an organic peroxide, a silane-coupling agent, and a phosphite compound represented by formula (I): P(OR1)3??(I) wherein, R1 is a branched-chain aliphatic alkyl group having 8 to 14 carbon atoms, and three R1s are the same as or different from each other and further wherein the content of the vinyl acetate recurring unit of the ethylene-vinyl acetate copolymer is in the range of 20 to 35% by weight.
    Type: Application
    Filed: June 13, 2014
    Publication date: October 2, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Tetsuro IKEDA, Hisataka KATAOKA, Yoshihiko INOUE
  • Patent number: 8791182
    Abstract: The object of the present invention is to provide a solar cell sealing film obtained from a composition comprising chiefly ethylene-vinyl acetate copolymer and organic peroxides for giving crosslinked structure, which suppresses the occurrence of blisters without reduction of crosslink rate, even if the film contains silane-coupling agents for improving adhesive strength. The solar cell sealing film comprises ethylene-vinyl acetate copolymer, an organic peroxide, a silane-coupling agent, and a phosphite compound represented by formula (I): P(OR1)3??(I) wherein, R1 is a branched-chain aliphatic alkyl group having 8 to 14 carbon atoms, and three R1s are the same as or different from each other and further wherein the content of the vinyl acetate recurring unit of the ethylene-vinyl acetate copolymer is in the range of 20 to 35% by weight.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: July 29, 2014
    Assignee: Bridgestone Corporation
    Inventors: Tetsuro Ikeda, Hisataka Kataoka, Yoshihiko Inoue