Patents by Inventor Hiroyasu Nishida

Hiroyasu Nishida 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).

  • Publication number: 20110314745
    Abstract: A nodular silica sol has a ratio of an average particle diameter (r) measured by the dynamic light scattering method versus a particle diameter (r?) converted to that of an equivalent sphere computed from an average specific surface area measured by means of the nitrogen absorption method (r/r?, referred to as “association ratio”) in a range from 1.2 to 10, the particle diameter (r?) in a range from 5 to 200 nm, and the specific surface area in a range from 13 to 550 m2/g. The nodular silica particles have heterogeneous forms, and contents of Ca and Mg contained in the nodular silica particles are below 1000 ppm against SiO2 respectively.
    Type: Application
    Filed: September 1, 2011
    Publication date: December 29, 2011
    Applicant: JGC Catalysts and Chemicals Ltd.
    Inventors: Kazuhiro Nakayama, Akira Nakashima, Hiroyasu Nishida, Yoshinori Wakamiya
  • Patent number: 8029898
    Abstract: Inorganic compound particles constituted of a shell, a porous matter or a cavity enclosed therein, and the porous matter or the cavity being kept unchanged in a subsequently formed transparent coating film.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: October 4, 2011
    Assignee: JGC Catalysts and Chemicals Ltd.
    Inventors: Toshiharu Hirai, Hiroyasu Nishida, Michio Komatsu
  • Publication number: 20110209413
    Abstract: Provided is a non-spherical silica sol containing non-spherical silica fine particles dispersed in a dispersion medium, the non-spherical silica fine particles having an average particle diameter in a range of 3 to 150 nm as measured by dynamic light scattering, a minor-diameter/major-diameter ratio in a range of 0.01 to 0.8, and a specific surface area in a range of 10 to 800 m2/g, and also having a plurality of wart-like projections on the surfaces thereof, and a process for producing the non-spherical silica sol. The non-spherical silica fine particles contained in the non-spherical silica sol have a unique structure different from the structure of ordinary non-spherical silica fine particles.
    Type: Application
    Filed: May 28, 2009
    Publication date: September 1, 2011
    Applicant: JGC CATALYSTS AND CHEMICALS LTD.
    Inventors: Hiroyasu Nishida, Kazuhiro Nakayama
  • Publication number: 20100146864
    Abstract: A novel nodular silica sol adapted to use as a polishing material for polishing, for instance, CMP. The nodular silica sol has a ratio of an average particle diameter (r) measured by the dynamic light scattering method versus a particle diameter (r?) converted to that of an equivalent sphere computed from an average specific surface area measured by means of the nitrogen absorption method (r/r?, referred to as “association ratio”) in a range from 1.2 to 10, the particle diameter (r?) in a range from 5 to 200 nm, and the specific surface area in a range from 13 to 550 m2/g. The nodular silica particles have heterogeneous forms, and contents of Ca and Mg contained in the nodular silica particles are below 1000 ppm against SiO2 respectively.
    Type: Application
    Filed: August 1, 2006
    Publication date: June 17, 2010
    Applicant: Catalysts & Chemicals Industries Co., Ltd
    Inventors: Kazuhiro Nakayama, Akira Nakashima, Hiroyasu Nishida, Yoshinori Wakamiya
  • Patent number: 7727602
    Abstract: A recording sheet with an ink-receptive layer which can be used not only for dye type inks but also for pigment type inks is provided. Also provided is a coating liquid for forming an ink-receptive layer. The recording sheet with an ink-receptive layer includes a substrate sheet and an ink-receptive layer formed thereon, wherein the ink-receptive layer includes (i) fibrous crystalline particles on surfaces of which a cationic hydrated metal compound is supported and (ii) a binder. The fibrous crystalline particles have an average fiber diameter (D) of 0.1 to 2 ?m, an average fiber length (L) of 1 to 200 ?m and a ratio (aspect ratio) of an average fiber length (L) to an average fiber diameter (D) of 5 to 500.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: June 1, 2010
    Assignee: JGC Catalysts and Chemicals Ltd.
    Inventors: Manabu Watanabe, Hiroyasu Nishida
  • Patent number: 7575803
    Abstract: Inorganic compound particles constituted of a shell, a porous matter or a cavity enclosed therein, and the porous matter or the cavity being kept unchanged in a subsequently formed transparent coating film.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: August 18, 2009
    Assignee: JGC Catalysts and Chemicals Ltd.
    Inventors: Toshiharu Hirai, Hiroyasu Nishida, Michio Komatsu
  • Publication number: 20090202834
    Abstract: Inorganic compound particles constituted of a shell, a porous matter or a cavity enclosed therein, and the porous matter or the cavity being kept unchanged in a subsequently formed transparent coating film.
    Type: Application
    Filed: April 20, 2009
    Publication date: August 13, 2009
    Applicant: JGC Catalysts and Chemicals Ltd.
    Inventors: Toshiharu HIRAI, Hiroyasu NISHIDA, Michio KOMATSU
  • Publication number: 20080131571
    Abstract: The present invention provides a sol of spinous inorganic oxide particles not containing coarse particles, in which particles having extremely homogeneous particles are dispersed in a solvent. An acidic silicic acid is added to a dispersion liquid of core particles to grow core particles, and then again the acidic silicic acid is added at the addition rate 1.2 to 1.8 higher than that in the previous step to prepare a sol of spinous inorganic oxide particles. Then the sol is subjected to centrifugation to remove coarse particles having the diameter of 800 nm or more, thus spinous inorganic oxide particles having peculiar form such as a spinous one being obtained.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 5, 2008
    Applicant: CATALYSTS& CHEMICALS INDUSTRIES CO., LTD
    Inventors: Kazuhiro Nakayama, Mami Tokunaga, Akira Nakashima, Kazuaki Inoue, Osamu Yoshida, Yoshinori Wakamiya, Hiroyasu Nishida
  • Publication number: 20080086951
    Abstract: The present invention provides a sol of spinous silica-based particles in which silica-based particles having peculiar forms, spinous forms are dispersed in a solvent. The spinous silica-based particles have verrucous projections formed on surfaces of spherical silica-based particles. In the spinous particles, a value of the surface roughness (SA1/SA2, SA1 indicating a specific surface area measured by the BET method or the Sears method and SA2 indicating a specific surface area converted from an average particle diameter (D2) measured by the image analysis method) is in the range from 1.7 to 10. Furthermore the average diameter (D2) measured by the image analysis method is in the range from 7 to 150 nm.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 17, 2008
    Applicant: CATALYSTS & CHEMICALS INDUSTRIES CO., LTD
    Inventors: Yoshinori Wakamiya, Hiroyasu Nishida, Yuji Tawarazako, Kazuaki Inoue, Osamu Yoshida, Akira Nakashima
  • Patent number: 7323122
    Abstract: Silica-based particles coated with antimony oxide with a low refractive index and having conductivity are provided. The silica-based particles coated with antimony oxide comprise porous or hollow silica-based particles with antimony oxide coated thereon. A refractive index of the silica-based particles coated with antimony oxide is in the range from 1.35 to 1.60 with the volume resistivity value in the range from 10 to 5000 ?/cm and the average particle diameter in the range from 5 to 300 nm, and the thickness of the antimony oxide coating layer is in the range from 0.5 to 30 nm.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: January 29, 2008
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Ryo Muraguchi, Mitsuaki Kumazawa, Hiroyasu Nishida, Toshiharu Hirai
  • Patent number: 7309457
    Abstract: A chain antimony oxide fine particle group comprising antimony oxide fine particles which have an average particle diameter of 5 to 50 nm, are connected in the form of a chain and have an average connection number of 2 to 30 and preferably used for forming a hard coating film. The fine particle group can be prepared by a process comprising treating an alkali antimonate aqueous solution with a cation exchange resin to prepare an antimonic acid (gel) dispersion and then treating the dispersion with an anion exchange resin and/or adding a base to the dispersion. Also provided is a substrate with a film comprising a substrate and a hard coating film. The hard coating film includes a chain inorganic oxide fine particle group, in which inorganic oxide fine particles of 2 to 30 on the average are connected in the form of a chain, and a matrix.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: December 18, 2007
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Ryo Muraguchi, Masayuki Matsuda, Hiroyasu Nishida, Toshiharu Hirai, Mitsuaki Kumazawa
  • Publication number: 20070249736
    Abstract: It is an object of the present invention to provide a material which is applied to substrates by an easy and simple process, is applicable to substrates of a wide range and is capable of forming an antifouling film exhibiting excellent antifouling performance, and a substrate with an ink-receiving layer having excellent decoloring property. The titanium-containing silica sol of the invention includes (a) the following fine particles (a1) or the following fine particles (a2) and (b) a dispersion medium: (a1) titania fine particles having a mean particle diameter of 2 to 50 nm and porous silica fine particles having a mean particle diameter of 5 to 100 nm and a specific surface area, as determined by BET method, of not less than 300 m2/g, or (a2) porous silica fine particles obtained by surface-modifying surfaces of porous silica fine particles having a mean particle diameter of 5 to 100 nm and a specific surface area, as determined by BET method, of not less than 300 m2/g with a titanate compound.
    Type: Application
    Filed: September 1, 2005
    Publication date: October 25, 2007
    Applicant: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Manabu Watanabe, Tatsuo Ogawa, Hiroyasu Nishida, Michio Komatsu
  • Patent number: 7192986
    Abstract: An inorganic compound sol comprises a dispersion medium and, dispersed therein, inorganic compound particulates whose surface has been modified by an organic compound exhibiting a molecular polarizability of from 2×10?40 to 850×10?40C2m2J?2. The inorganic compound sol modified by an organic compound possesses a desirable affinity with the dispersion media, providing excellent dispersion stability in solvents while avoiding aggregation of particulates.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: March 20, 2007
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Tsuguo Koyanagi, Hiroyasu Nishida
  • Publication number: 20060269733
    Abstract: There is provided an antireflective laminate having a low refractive index and excellent mechanical strength, which comprises a coating layer of an ionizing radiation curing-type resin composition comprising ionizing radiation curing group-containing hollow silica fine particles. The antireflective laminate comprises a light transparent base material and at least a low refractive index layer having a refractive index of not more than 1.45 provided on the light transparent base material, wherein the low refractive index layer comprises an ionizing radiation curing-type resin composition and silica fine particles having an outer shell layer with the interior of the silica fine particles being porous or void, and, for a part or all of the silica fine particles, at least a part of the surface of the silica fine particle has been treated with an ionizing radiation curing group-containing silane coupling agent.
    Type: Application
    Filed: August 26, 2004
    Publication date: November 30, 2006
    Applicants: Dai Nippon Printing Co., Ltd., Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Utako Mizuno, Midori Nakajo, Seiji Shinohara, Toshio Yoshihara, Hiroyasu Nishida, Ryo Muraguchi, Masafumi Hirai
  • Publication number: 20060046000
    Abstract: A recording sheet with an ink-receptive layer which can be used not only for dye type inks but also for pigment type inks. The sheet has excellent printing properties such that a print free from ink blotting is obtainable and clear printing with uniform density is feasible, is excellent in water resistance, weathering resistance and fading resistance and has sufficiently high strength. Also provided is a coating liquid for forming an ink-receptive layer. The recording sheet with an ink-receptive layer is a recording sheet including a substrate sheet and an ink-receptive layer formed thereon, wherein the ink-receptive layer comprises (i) fibrous crystalline particles on surfaces of which a cationic hydrated metal compound is supported and (ii) a binder. In the recording sheet with an ink-receptive layer, the fibrous crystalline particles have an average fiber diameter (D) of 0.
    Type: Application
    Filed: November 20, 2003
    Publication date: March 2, 2006
    Applicant: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Manabu Watanabe, Hiroyasu Nishida
  • Publication number: 20050121654
    Abstract: Silica-based particles coated with antimony oxide with a low refractive index and having conductivity are provided. The silica-based particles coated with antimony oxide comprise porous or hollow silica-based particles with antimony oxide coated thereon. A refractive index of the silica-based particles coated with antimony oxide is in the range from 1.35 to 1.60 with the volume resistivity value in the range from 10 to 5000 ?/cm and the average particle diameter in the range from 5 to 300 nm, and the thickness of the antimony oxide coating layer is in the range from 0.5 to 30 nm.
    Type: Application
    Filed: October 15, 2004
    Publication date: June 9, 2005
    Inventors: Ryo Muraguchi, Mitsuaki Kumazawa, Hiroyasu Nishida, Toshiharu Hirai
  • Publication number: 20050116205
    Abstract: A chain antimony oxide fine particle group comprising antimony oxide fine particles which have an average particle diameter of 5 to 50 nm, are connected in the form of a chain and have an average connection number of 2 to 30 and preferably used for forming a hard coating film. The fine particle group can be prepared by a process comprising treating an alkali antimonate aqueous solution with a cation exchange resin to prepare an antimonic acid (gel) dispersion and then treating the dispersion with an anion exchange resin and/or adding a base to the dispersion. Also provided is a substrate with a film comprising a substrate and a hard coating film. The hard coating film includes a chain inorganic oxide fine particle group, in which inorganic oxide fine particles of 2 to 30 on the average are connected in the form of a chain, and a matrix.
    Type: Application
    Filed: November 5, 2004
    Publication date: June 2, 2005
    Inventors: Ryo Muraguchi, Masayuki Matsuda, Hiroyasu Nishida, Toshiharu Hirai, Mitsuaki Kumazawa
  • Patent number: 6890647
    Abstract: Highly transparent alumina hydrate particles having a large pore volume, having a pore diameter which falls in a specified range and, when formed into a high-concentration dispersion sol, exhibiting a low viscosity are provided. Alumina hydrate particles having a composition represented by the general formula xM2O.y(NH4)2O.Al2O3.zH2O (2×10?4?x?25×10?4, 0.1×10?4?y?20×10?4, 0.6?z?2.5, M represents an alkali metal; when the alkali metal is in the form of M2O, x is the number of moles thereof per mol of Al2O3; when ammonia is in the form of (NH4)2O, y is the number of moles thereof per mol of Al2O3; and z is the number of moles of hydration water (H2O) per mol of Al2O3), the alumina hydrate particles having an average particle diameter of 0.02 to 0.2 ?m, a total pore volume of 0.5 to 1.5 ml/g, and a volume of pores whose diameter is from 15 to 30 nm ranging from 0.3 to 1.0 ml/g.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: May 10, 2005
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Hiroyasu Nishida, Naoyuki Enomoto, Michio Komatsu
  • Publication number: 20050037201
    Abstract: Inorganic compound particles constituted of a shell, a porous matter or a cavity enclosed therein, and the porous matter or the cavity being kept unchanged in a subsequently formed transparent coating film.
    Type: Application
    Filed: July 26, 2004
    Publication date: February 17, 2005
    Applicant: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Toshiharu Hirai, Hiroyasu Nishida, Michio Komatsu
  • Patent number: 6849112
    Abstract: Amorphous inorganic particles as a dental material includes silica and inorganic oxide(s) other than silica and has high x-ray impermeability. The inorganic particles as a dental material includes silica with the content in the range from 70 to 98 weight % and oxide(s) of one or more elements selected from the group of Zr, Ti, La, Ba, Sr, Hf, Y, Zn, AL, and B, wherein 5 to 70 weight % of the silica is originated from an acidic silicic acid solution and 30 to 95 weight % of the silica is originated from a sol of silica. The inorganic particles as a dental material have an average particle diameter in the range from 1 to 10 ?m, specific surface area in the range from 50 to 350 m2/g, pore volume in the range from 0.05 to 0.5 ml/g, amorphous crystallinity as observed by x-ray diffraction, and the refractive index in the range from 1.47 to 1.60.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: February 1, 2005
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Hiroyasu Nishida, Noboru Senju, Michio Komatsu