Patents by Inventor Futoshi Hoshino

Futoshi Hoshino 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: 7008901
    Abstract: The present invention provides an emulsion for thermal recording material to be used as the resin component of a protective layer constituting a thermal recording material, characterized by comprising a copolymer resin (A) prepared by copolymerizing (a) methacrylamide with (b) a vinyl monomer having a carboxyl group and resin particles (B) prepared by polymerizing (c) a vinyl monomer, with the resin (A) distributed substantially on the surfaces of the resin particles (B).
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: March 7, 2006
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shinjirou Sakurai, Masaya Kusumoto, Masatoshi Kaneko, Futoshi Hoshino
  • Publication number: 20040081773
    Abstract: For providing an inkjet recording sheet with excellent gloss, ink absorbency, color density, water resistance, light resistance and anti-yellowing property, as well as a process for manufacturing the recording sheet, this invention provides an inkjet recording sheet comprising at least one layer containing a cationic particulate organic component on a sheet support, wherein the layer containing the cationic particulate organic component comprises a void-forming component consisting of a cationic particulate organic component which is made of a particular (co)polymer and which is endowed with a cationic function.
    Type: Application
    Filed: October 23, 2003
    Publication date: April 29, 2004
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Tadashi Ishida, Yoshihiko Tomita, Kuniaki Kawabe, Yukie Ogawa, Futoshi Hoshino
  • Publication number: 20040058815
    Abstract: The present invention provides an emulsion for thermal recording material to be used as the resin component of a protective layer constituting a thermal recording material, characterized by comprising a copolymer resin (A) prepared by copolymerizing (a) methacrylamide with (b) a vinyl monomer having a carboxyl group and resin particles (B) prepared by polymerizing (c) a vinyl monomer, with the resin (A) distributed substantially on the surfaces of the resin particles (B).
    Type: Application
    Filed: July 3, 2003
    Publication date: March 25, 2004
    Applicant: Mitsui Chemicals Inc.
    Inventors: Shinjirou Sakurai, Masaya Kusumoto, Masatoshi Kaneko, Futoshi Hoshino
  • Publication number: 20030045427
    Abstract: The present invention provides an emulsion for thermal recording material to be used as the resin component of a protective layer constituting a thermal recording material, characterized by comprising a copolymer resin (A) prepared by copolymerizing (a) methacrylamide with (b) a vinyl monomer having a carboxyl group and resin particles (B) prepared by polymerizing (c) a vinyl monomer, with the resin (A) distributed substantially on the surfaces of the resin particles (B).
    Type: Application
    Filed: September 19, 2001
    Publication date: March 6, 2003
    Inventors: Shinijirou Sakurai, Masaya Kusumoto, Masatoshi Kaneko, Futoshi Hoshino
  • Publication number: 20020182378
    Abstract: For providing an inkjet recording sheet with excellent gloss, ink absorbency, color density, water resistance, light resistance and anti-yellowing property, as well as a process for manufacturing the recording sheet, this invention provides an inkjet recording sheet comprising at least one layer containing a cationic particulate organic component on a sheet support, wherein the layer containing the cationic particulate organic component comprises a void-forming component consisting of a cationic particulate organic component which is made of a particular (co)polymer and which is endowed with a cationic function.
    Type: Application
    Filed: December 21, 2001
    Publication date: December 5, 2002
    Inventors: Tadashi Ishida, Yoshihiko Tomita, Kuniaki Kawabe, Yukie Ogawa, Futoshi Hoshino
  • Patent number: 6271285
    Abstract: An ink composition is provided which can realize an image having excellent rubbing/scratch resistance and waterfastness, is free from a clogged nozzle problem, and enables stable printing. The ink composition comprises a colorant, a fine particle of a polymer, a water-soluble organic solvent, and water, the fine particle of the polymer having a film-forming property, a carboxyl group on its surface, and a reactivity with a divalent metal salt such that, when three volumes of an aqueous emulsion, of the fine particle of the polymer, having a fine particle concentration of 0.1% by weight is brought into contact with one volume of an aqueous divalent metal salt solution having a concentration of 1 mol/liter, the time for the transmission of light at a wavelength of 700 nm to be decreased to 50% of the initial transmission is not more than 1×104 sec.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: August 7, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Toshiyuki Miyabayashi, Yasushi Takamatsu, Futoshi Hoshino, Masatoshi Kaneko, Toshihiro Yoshimura
  • Patent number: 6090892
    Abstract: Disclosed herein are a (co)polymer comprising, as an essential component, a (co)polymer containing a recurring unit in a predetermined proportion, and its production process. The recurring unit contains a specific amido group and/or a particular hydroxyl group as a pendant group. This (co)polymer is generally obtained in the form of powder and features extremely easy redispersion, and is useful especially as a cement additive for improving physical properties of cement.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: July 18, 2000
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tadashi Ishida, Yoshio Kikuta, Futoshi Hoshino, Katsunari Matsumoto
  • Patent number: 5500286
    Abstract: A multi-shell emulsion particle of dry state structure having one or more of penetrating pore(s) connecting the surface layer of the particle with the interior of the particle and having a particle diameter of from 0.1 to 5.0.mu. preferably from 0.1 to 1.2.mu..
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: March 19, 1996
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Kousuke Someya, Akihiro Yamazaki, Futoshi Hoshino, Takeshi Yanagihara
  • Patent number: 5409776
    Abstract: A multi-shell emulsion particle of dry state structure having one or more of penetrating pore(s) connecting the surface layer of the particle with the interior of the particle and having a particle diameter of from 0.1 to 5.0.mu. preferably from 0.1 to 1.2.mu..
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: April 25, 1995
    Assignee: Mitsui Tomatsu Chemicals, Incorporated
    Inventors: Kousuke Someya, Akihiro Yamazaki, Futoshi Hoshino, Takeshi Yanagihara
  • Patent number: 5401800
    Abstract: Substantially flat surfaced emulsion particles polymerized vinyl monomer, having a concavity in at least one of the flat surfaces, a diameter D of from 0.1 to 5.0 .mu.m, and a particle diameter thickness d ratio (d/D) of 1.2 to 5.0 prepared by the step of (1) aqueous emulsion polymerizing a first vinyl monomer or mixture of monomers (a) to form vinyl polymer seed particles; and (2) aqueous emulsion polymerizing a second vinyl monomer or mixture of monomers (b) in the presence of the vinyl polymer seed particles and a non-aqueous organic solvent having a surface tention to water at 20.degree. C. of 48 dyne/cm or more, in a weight ratio of monomer (a) to monomer (b) of 0.5/99.5 to 50/50; and are useful in high performance recording material, paint compositions and paper coating compositions.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: March 28, 1995
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Futoshi Hoshino, Makoto Nakano, Takeshi Yanagihara
  • Patent number: 5273824
    Abstract: A cored multi-shell emulsion particle consisting of a core particle, a void layer existing in the exterior of the core particle and a shell layer, each of which has a diameter of .phi., d and D, respectively, and the ratio of .phi., d and D is in the following range..phi./D=0.1-0.6d/D=0.2-0.8 (d>.phi.)The particle exhibits excellent hiding power, brightness, gloss and thermal insulation property as an organic pigment without impairing drying ability and strength of coated layer.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: December 28, 1993
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Futoshi Hoshino, Makoto Nakano, Kousuke Someya, Junko Morita, Takeshi Yanagihara, Akihiro Yamazaki
  • Patent number: 5216044
    Abstract: A synthetic resin emulsion whose polymer particles are solid core-shell particles in which form pores spontaneously upon drying is produced by the steps of preparing as core particles from 2 to 60 parts by weight of polymer (A) by emulsion polymerization of from 10 to 80 parts by weight of acrylate ester (a.sub.1) having an alkyl group of from 1 to 3 carbon atoms and from 90 to 20 parts by weight another of vinyl-type monomer (a.sub.2) copolymerizable therewith, forming a shell of a polymer (B) on the surface of the core particles of polymer (A) by emulsion polymerization in the presence thereof of from 98 to 40 parts by weight of vinyl-type monomer (b), different from polymer (a.sub.1) and successively hydrolyzing the core portion of the particles with an alkaline material. Organic pigments prepared from the synthetic resin emulsion can improve the hiding power, brightness, gloss and other properties of articles coated therewith.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: June 1, 1993
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Futoshi Hoshino, Makoto Nakano, Kousuke Someya, Junko Morita, Takeshi Yanagihara
  • Patent number: 5132159
    Abstract: Substantially flat surfaced emulsion particles polymerized vinyl monomer, having a concavity in at least one of the flat surfaces, a diameter D of from 0.1 to 5.0 .mu.m, and a particle diameter thickness d ratio (d/D) of 1.2 to 5.0, prepared by the step of (1) aqueous emulsion polymerizing a first vinyl monomer or mixture of monomers (a) to form vinyl polymer seed particles; and (2) aqueous emulsion polymerizing a second vinyl monomer or mixture of monomers (b) in the presence of the vinyl polymer seed particles and a non-aqueous organic solvent having a surface tension to water at 20.degree. C. of 48 dyne/cm or more, in a weight ratio of monomer (a) to monomer (b) of 0.5/99.5 to 50/50; and are useful in high performance recording material, paint compositions and paper coating compositions.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: July 21, 1992
    Inventors: Futoshi Hoshino, Makoto Nakano, Takeshi Yanagihara
  • Patent number: 5106813
    Abstract: A thermosensitive recording paper is disclosed useful for thermosensitive recording which comprises a substrate, a thermosensitive recording layer and an undercoat layer interposed therebetween which contains 10 to 40 parts of a binder and 60 to 90 parts by weight of crosslinked polymer microparticles having a particle diameter of 0.2 to 5.0 .mu.m and a ratio of weight average diameter to number average diameter of 2.0 or less.
    Type: Grant
    Filed: March 28, 1990
    Date of Patent: April 21, 1992
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Futoshi Hoshino, Makoto Nakano, Kousuke Someya, Junko Morita, Takeshi Yanagihara
  • Patent number: 5094998
    Abstract: Disclosed in a fine-particle aggregate emulsion comprising aggregate particles formed from a copolymer (a) composed of an unsaturated carboxylic acid and a vinyl monomer copolymerizable therewith, and a foreign polymer (b) formed by polymerization of a vinyl monomer differing in composition from that used in copolymer (a), foreign polymer (b) being present in the form of particles having a diameter of 0.05 to 0.5 .mu., the aggregate particles having a diameter of 0.2 to 3.0 .mu..This fine-particle aggregate emulsion is useful in paints, paper coating and information recording paper.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: March 10, 1992
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Futoshi Hoshino, Makoto Nakano, Takeshi Yanagihara
  • Patent number: 5041464
    Abstract: A process for preparing polymer emulsion particles having pores therein, an outside diameter D of 0.1 to 5.0[ , an inside diameter d of 0.05 to 4.0.mu. , and a ratio (d/D) of 0.1 to 0.9 in dry condition, comprising the steps of forming core-shell emulsion particles from specific monomers by two-emulsion polymerizations, and swelling the core of the particles with water by hydrolyzing the vinyl acetate part of polymer (A), thereby inducing the hydroxyl groups therein, e.g., using an acidic material or a basic material at 50.degree. to 100.degree. C. The particles when use as a pigment in coating compositions provide excellent converage rate, brightness, gloss and water resistance.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: August 20, 1991
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Futoshi Hoshino, Takeshi Yanagihara, Makoto Nakano
  • Patent number: 4978695
    Abstract: Disclosed in a fine-particle aggregate emulsion comprising aggregate particles formed from a copolymer (a) composed of an unsaturated carboxylic acid and a vinyl monomer copolymerizable therewith, and a foreign polymer (b) formed by polymerization of a vinyl monomer differing in composition from that used in copolymer (a), foreign polymer (b) being present in the form of particles having a diameter of 0.05 to 0.05 .mu., the aggregate particles having a diameter of 0.2 to 3.0 .mu..This fine-particle aggregate emulsion is useful in paints, paper coating and information recording paper.
    Type: Grant
    Filed: May 16, 1989
    Date of Patent: December 18, 1990
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Futoshi Hoshino, Makoto Nakano, Takeshi Yanagihara
  • Patent number: 4948772
    Abstract: Substantially flat surfaced emulsion particles polymerized vinyl monomer, having a concavity in at least one of the flat surfaces, a diameter D of from 0.1 to 5.0 .mu.m, and a particle diameter thickness d ratio (d/D) of 1.2 to 5.0, prepared by the step of (1) aqueous emulsion polymerizing a first vinyl monomer or mixture of monomers (a) to form vinyl polymer seed particles; and (2) aqueous emulsion polymerizing a second vinyl monomer or mixture of monomers (b) in the presence of the vinyl polymer seed particles and a non-aqueous organic solvent having a surface tention to water at 20.degree. C. of 48 dyne/cm or more, in a weight ratio of monomer (a) to monomer (b) of 0.5/99.5 to 50/50; and are useful in high performance recording material, paint compositions and paper coating compositions.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: August 14, 1990
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Futoshi Hoshino, Makoto Nakano, Takeshi Yanagihara