Patents by Inventor Tatsuhiro Suwa

Tatsuhiro Suwa 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: 11513263
    Abstract: A light-diffuser includes a transparent resin and transparent particles dispersed in the transparent resin. The transparent resin has a refractive index different from that of the transparent particles, and at least one portion of an outer perimeter of each of the transparent particles, respectively, is made compatible with the transparent resin disposed in the vicinity of the transparent particles, respectively.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: November 29, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tatsuhiro Suwa, Yoshihiro Yokote, Yuji Tanaka
  • Publication number: 20200363570
    Abstract: A light-diffuser includes a transparent resin and transparent particles dispersed in the transparent resin. The transparent resin has a refractive index different from that of the transparent particles, and at least one portion of an outer perimeter of each of the transparent particles, respectively, is made compatible with the transparent resin disposed in the vicinity of the transparent particles, respectively.
    Type: Application
    Filed: May 14, 2020
    Publication date: November 19, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tatsuhiro SUWA, Yoshihiro YOKOTE, Yuji TANAKA
  • Patent number: 10655037
    Abstract: An adhesive composition for a polarizing plate has good initial curing and an adhesive property. The adhesive composition includes (A) a polymerizable functional group-containing monomer capable of providing an anchor effect; (B) an epoxy group-containing compound; (D) a photoacid generator; and (E) at least one of a photopolymerization initiator and a photosensitizer.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Tatsuhiro Suwa, Hiroshi Ogawa
  • Patent number: 10190025
    Abstract: An adhesive composition for a polarizing plate of the present invention comprises, on the basis of 100 parts by weight of a polymerizable component: the polymerizable component comprising (A) approximately 50-90 parts by weight of an epoxy group-containing compound and (B) approximately 10-50 parts by weight of a (meth)acrylate monomer; (C) approximately 1-7 parts by weight of a photoacid generator; and (D) approximately 0.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: January 29, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tatsuhiro Suwa, Hiroshi Ogawa
  • Publication number: 20180044563
    Abstract: An adhesive composition for a polarizing plate has good initial curing and an adhesive property. The adhesive composition includes (A) a polymerizable functional group-containing monomer capable of providing an anchor effect; (B) an epoxy group-containing compound; (D) a photoacid generator; and (E) at least one of a photopolymerization initiator and a photosensitizer.
    Type: Application
    Filed: October 23, 2017
    Publication date: February 15, 2018
    Inventors: Tatsuhiro SUWA, Hiroshi OGAWA
  • Patent number: 9834708
    Abstract: An adhesive composition for a polarizing plate has good initial curing and an adhesive property. The adhesive composition includes (A) a polymerizable functional group-containing monomer capable of providing an anchor effect; (B) an epoxy group-containing compound; (D) a photoacid generator; and (E) at least one of a photopolymerization initiator and a photosensitizer.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: December 5, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Tatsuhiro Suwa, Hiroshi Ogawa
  • Patent number: 9790402
    Abstract: Disclosed herein is an adhesive composition for polarizing plates having increased adhesion by preventing curing inhibition due to moisture. The present invention provides an adhesive composition for polarizing plates, comprising: (A) a radical polymerizable monomer; (B) a cationic polymerizable monomer; (C) an unsaturated dicarboxylic acid anhydride; and (D) an initiator.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: October 17, 2017
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Hirosh Ogawa, Tatsuhiro Suwa
  • Patent number: 9551812
    Abstract: An adhesive composition, an adhesive layer, an optical member, and an adhesive sheet, the adhesive composition including 100 parts by weight of a (meth)acrylic copolymer, the (meth)acrylic copolymer having a weight average molecular weight of about 100,000 to about 2,000,000 g/mol; about 0.05 to about 5 parts by weight of a carbodiimide crosslinker; and about 0.01 to about 0.3 parts by weight of an organic group-containing compound, the organic group-containing compound including at least one selected from the group of titanium, zirconium, and hafnium.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: January 24, 2017
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Hirosh Ogawa, Tatsuhiro Suwa
  • Publication number: 20160280964
    Abstract: An adhesive composition for a polarizing plate of the present invention comprises, on the basis of 100 parts by weight of a polymerizable component: the polymerizable component comprising (A) approximately 50-90 parts by weight of an epoxy group-containing compound and (B) approximately 10-50 parts by weight of a (meth)acrylate monomer; (C) approximately 1-7 parts by weight of a photoacid generator; and (D) approximately 0.
    Type: Application
    Filed: November 17, 2014
    Publication date: September 29, 2016
    Inventors: Tatsuhiro SUWA, Hiroshi OGAWA
  • Patent number: 9315691
    Abstract: An adhesive composition, an optical member, a surface protective film, and an adhesive sheet, the adhesive composition including 100 parts by weight of a (meth)acrylic copolymer having a weight average molecular weight of about 100,000 to about 2,000,000 g/mol; about 0.01 to about 5 parts by weight of a peroxide crosslinking agent; and about 0.001 to about 5 parts by weight of a carbodiimide.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: April 19, 2016
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Hiroshi Ogawa, Tatsuhiro Suwa
  • Patent number: 9163167
    Abstract: An adhesive composition includes 100 parts by weight of a (meth)acrylate copolymer having a weight average molecular weight of 1,000,000 to 2,000,000 g/mol; and 0.05 to 5 parts by weight of a carbodiimide cross-linking agent.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: October 20, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Hiroshi Ogawa, Tatsuhiro Suwa, Cheong Hun Song
  • Patent number: 9163166
    Abstract: An adhesive composition includes a copolymer (A), the copolymer (A) being a copolymer of: a hydroxyl group-containing (meth)acrylamide (a1), the hydroxyl group-containing (meth)acrylamide (a1) including at least one of a hydroxyl group-containing acrylamide and a hydroxyl group-containing methacrylamide, and a (meth)acrylate (a2), the (meth)acrylate (a2) including at least one of an acrylic ester and a methacrylic ester; and an antistatic agent (B), the antistatic agent (B) including an ionic compound.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: October 20, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Cheong Hun Song, Tatsuhiro Suwa, Hiroshi Ogawa
  • Publication number: 20150111033
    Abstract: An adhesive composition includes a copolymer (A), the copolymer (A) being a copolymer of: a hydroxyl group-containing (meth)acrylamide (a1), the hydroxyl group-containing (meth)acrylamide (a1) including at least one of a hydroxyl group-containing acrylamide and a hydroxyl group-containing methacrylamide, and a (meth)acrylate (a2), the (meth)acrylate (a2) including at least one of an acrylic ester and a methacrylic ester; and an antistatic agent (B), the antistatic agent (B) including an ionic compound.
    Type: Application
    Filed: December 23, 2014
    Publication date: April 23, 2015
    Inventors: Cheong Hun SONG, Tatsuhiro SUWA, Hiroshi OGAWA
  • Publication number: 20150099127
    Abstract: Disclosed herein is an adhesive composition for polarizing plates having increased adhesion by preventing curing inhibition due to moisture. The present invention provides an adhesive composition for polarizing plates, comprising: (A) a radical polymerizable monomer; (B) a cationic polymerizable monomer; (C) an unsaturated dicarboxylic acid anhydride; and (D) an initiator.
    Type: Application
    Filed: February 14, 2013
    Publication date: April 9, 2015
    Inventors: Hirosh Ogawa, Tatsuhiro Suwa
  • Publication number: 20150017448
    Abstract: An adhesive composition for a polarizing plate has good initial curing and an adhesive property. The adhesive composition includes (A) a polymerizable functional group-containing monomer capable of providing an anchor effect; (B) an epoxy group-containing compound; (D) a photoacid generator; and (E) at least one of a photopolymerization initiator and a photosensitizer.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 15, 2015
    Inventors: Tatsuhiro SUWA, Hiroshi OGAWA
  • Patent number: 8604130
    Abstract: An adhesive composition includes a (meth)acrylic copolymer, the (meth)acrylic copolymer containing about 92 to about 99.7 parts by weight of a moiety derived from a (meth)acrylic acid ester monomer, and about 0.3 to about 8 parts by weight of at least one of a moiety derived from a carboxyl group-containing monomer and a moiety derived from a hydroxyl group-containing (meth)acrylic acid monomer, the (meth)acrylic copolymer having a weight average molecular weight of about 500,000 g/mol to about 2,000,000 g/mol, a carbodiimide curing agent, and an oligomeric silane coupling agent.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: December 10, 2013
    Assignee: Cheil Industries, Inc.
    Inventors: Hiroshi Ogawa, Tatsuhiro Suwa, Cheong Hun Song
  • Patent number: 8513363
    Abstract: An adhesive composition, an optical member, a surface protective film, and an adhesive sheet, the adhesive composition including 100 parts by weight of a (meth)acrylic copolymer having a weight average molecular weight of about 100,000 to about 2,000,000 g/mol; about 0.05 to about 5 parts by weight of a carbodiimide crosslinker, based on 100 parts by weight of the (meth)acrylic copolymer; and about 0.001 to about 5 parts by weight of an imidazole compound represented by Formula 1, based on 100 parts by weight of the (meth)acrylic copolymer: wherein, in Formula 1, R1, R2, and R3 are each independently a hydrogen atom, a halogen atom, or a substituted or unsubstituted C1 to C10 straight or branched alkyl group.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: August 20, 2013
    Assignee: Cheil Industries, Inc.
    Inventors: Tatsuhiro Suwa, Hiroshi Ogawa
  • Publication number: 20120316294
    Abstract: An adhesive composition includes 100 parts by weight of a (meth)acrylate copolymer having a weight average molecular weight of 1,000,000 to 2,000,000 g/mol; and 0.05 to 5 parts by weight of a carbodiimide cross-linking agent.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 13, 2012
    Inventors: Hiroshi OGAWA, Tatsuhiro Suwa, Cheong Hun Song
  • Publication number: 20120315476
    Abstract: An adhesive composition includes 100 parts by weight of a (meth)acrylate copolymer including 0 to less than 0.5 parts by weight of a carboxyl group containing monomer, 0.6 to 9 parts by weight of a hydroxyl group containing (meth)acrylic monomer, and 90.5 to 99.4 parts by weight of a (meth)acrylic acid ester monomer, and having a weight average molecular weight of 100,000 g/mol to less than 1,000,000 g/mol; and 0.1 to 5 parts by weight of a carbodiimide cross-linking agent.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 13, 2012
    Inventors: Hiroshi OGAWA, Tatsuhiro Suwa, Cheong Hun Song
  • Publication number: 20120309873
    Abstract: An adhesive composition, an adhesive layer, an optical member, and an adhesive sheet, the adhesive composition including 100 parts by weight of a (meth)acrylic copolymer, the (meth)acrylic copolymer having a weight average molecular weight of about 100,000 to about 2,000,000 g/mol; about 0.05 to about 5 parts by weight of a carbodiimide crosslinker; and about 0.01 to about 0.3 parts by weight of an organic group-containing compound, the organic group-containing compound including at least one selected from the group of titanium, zirconium, and hafnium.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 6, 2012
    Applicant: CHEIL INDUSTRIES, INC.
    Inventors: Hirosh OGAWA, Tatsuhiro SUWA