Patents by Inventor Toshiharu Hirai

Toshiharu Hirai 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: 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: 20070275257
    Abstract: To provide silica-based particles with a low refractive index, the hollow and spherical silica-based particles include porous materials or cavities inside an outer shell thereof by growing porous composite oxide particles (primary particles) adjusting a ratio of a quantity of added silica sources versus a quantity of added sources for an inorganic oxide other than silica and then removing the inorganic oxide other than silica. The dispersion liquid of silica-based particles is aged at a range from the room temperature to 300° C., cleaning is performed according to the necessity, and hydrothermal processing is performed at a temperature in the range from 50 to 300° C.
    Type: Application
    Filed: July 19, 2005
    Publication date: November 29, 2007
    Applicant: Catalysts & Chemicals Industries Co., Ltd
    Inventors: Ryou Muraguchi, Mitsuaki Kumazawa, Toshiharu Hirai
  • Publication number: 20070207887
    Abstract: A composite gear member of the power transmission device is divided into an annular first member and a second member. The annular first member is formed with an output gear. The second member is formed with internal teeth and spline-coupled to an inner portion of the first member. Therefore, the influence of the engagement reaction force generated from the output gear of the first member is decreased by the spline-coupling, and the vibration is reduced.
    Type: Application
    Filed: February 22, 2007
    Publication date: September 6, 2007
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasushi Ueda, Toshiharu Hirai, Atsushi Kawamoto
  • Patent number: 7163892
    Abstract: There is provided a process for producing an integrated circuit, wherein not only can conductive fine particles be deposited efficiently and densely in minute wiring channels and connecting holes but also a circuit of low wiring resistance and high density can be formed and wherein a high-degree integration can be achieved to thereby bring about an economic advantage. In particular, there is provided a process for producing an integrated circuit, comprising coating a substrate provided with wiring channels with a coating liquid for integrated circuit formation containing conductive fine particles to thereby form an integrated circuit on the substrate, wherein the coating liquid for integrated circuit formation while being exposed to ultrasonic waves is applied to the wiring channels.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: January 16, 2007
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Atsushi Tonai, Toshiharu Hirai, Tsuguo Koyanagi, Masayuki Matsuda, Michio Komatsu
  • Publication number: 20060234087
    Abstract: A transparent film-forming coating liquid is provided which is capable of forming a transparent film that is excellent not only in scratch resistance, film hardness, scratch strength and adhesion to a substrate but also in haze and anti-glare properties. Also provided is a display device having a front panel constituted of a substrate with such a transparent film applied thereto. The transparent film-forming coating liquid comprises inorganic oxide particle groups, in each of which 2 to 10 inorganic oxide particles on an average are linked in the form of a chain, and a polar solvent. In the transparent film-forming coating liquid, the inorganic oxide particles have an average particle diameter of 4 to 200 nm. The inorganic oxide particles are silica particles, and the silica particles are porous particles and/or hollow particles each having a cavity inside.
    Type: Application
    Filed: May 12, 2004
    Publication date: October 19, 2006
    Applicant: CATALYSTS & CHEMICALS INDUSTRIES CO., LTD.
    Inventors: Mitsuaki Kumazawa, Masayuki Matsuda, Toshiharu Hirai
  • 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
  • Publication number: 20050085379
    Abstract: Provided is a process for producing electrode catalyst fine particles capable of affording formed catalysts such as membranes excellent in uniformity and strength and also employable as catalyst to exhibit high catalytic activity over long periods because fine metal particles are highly distributed on carriers to make particle growth or the like less likely to occur. Electrode catalyst fine particles comprise fine particles which have an average particle diameter of 10 nm to 10 ?m and in which fine metal particles are supported on carrier particles, wherein a potential difference (absolute value of (II) minus (I)) between a flow potential (I) of a water dispersion of the fine metal particles at 1 wt % concentration and a pH of 3 to 8 and a flow potential (II) of a water dispersion of the carrier particles at 1 wt % concentration and a pH of 4 to 10, is in the range of 10 to 3000 mV.
    Type: Application
    Filed: October 15, 2004
    Publication date: April 21, 2005
    Inventors: Yoichi Ishihara, Toshiharu Hirai, 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
  • Publication number: 20040251293
    Abstract: A toilet paper holder is constituted of a storage body (13) storing toilet paper (38) and a lid body (14) covering the storage body (13) in an openable/closable manner. A paper end (39) drawn out from the toilet paper (38) stored in a storage part (15) of the storage body (13) extends frontward between a press roller (25) mounted on the lid body (14) and a guide roller (24) mounted on the storage body (13) in a pressed state, and is taken out from between a front edge (41) of the lid body (14) and a front part (35) of a flap mechanism (17) mounted on the storage body (13). The front part (35), which is swingable, is urged to a front position. A cutting mechanism (16) coming into contact with the paper for dissolving the same is detachably mounted on the storage body (13) on a position under the guide roller (24).
    Type: Application
    Filed: April 22, 2004
    Publication date: December 16, 2004
    Inventors: Toshiharu Hirai, Susumu Nishimoto
  • Patent number: 6777069
    Abstract: The transparent film-coated substrate includes a substrate and a transparent coating film formed on the surface of the substrate, the transparent coating film comprising (i) a matrix containing a silicone having a fluorine-substituted alkyl group, and (ii) inorganic compound particles comprising a shell, and a porous matter or a cavity enclosed therein, wherein the porous matter or the cavity remains unchanged in the formed transparent coating film.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: August 17, 2004
    Assignees: Kabushiki Kaisha Toshiba, Asahi Glass Co., Ltd., Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Takeo Ito, Hidemi Matsuda, Yoshimi Otani, Kazuhiko Yui, Toshiharu Hirai, Hiroyasu Nishida, Michio Komatsu
  • Publication number: 20040112175
    Abstract: Subjects for the invention are to provide fine metal particles which have surface resistance as low as about 102 to 104 &OHgr;/▭, are excellent in antistatic properties, anti-reflection properties, and electromagnetic shielding properties, and are suitable for use in forming a transparent conductive coating film excellent in reliability and durability, and to provide a process for producing the fine metal particles.
    Type: Application
    Filed: September 29, 2003
    Publication date: June 17, 2004
    Inventors: Yoichi Ishihara, Toshiharu Hirai
  • Publication number: 20040016914
    Abstract: Disclosed is a coating liquid for forming a transparent conductive film, comprising conductive fine particles having an average particle diameter of 1 to 200 nm, silica particles having an average particle diameter of 4 to 200 nm and a polar solvent. The silica particles are in the form of chain silica particles having 2 to 10 silica particles on an average being connected. The content of an alkali in the silica particles is not more than 1000 ppm in terms of an alkali metal M.
    Type: Application
    Filed: July 17, 2003
    Publication date: January 29, 2004
    Applicant: CATALYSTS & CHEMICALS INDUSTRIES CO., LTD.
    Inventors: Masayuki Matsuda, Mitsuaki Kumazawa, Yoichi Ishihara, Toshiharu Hirai, Michio Komatsu
  • Publication number: 20030157272
    Abstract: There is provided a process for producing an integrated circuit, wherein not only can conductive fine particles be deposited efficiently and densely in minute wiring channels and connecting holes but also a circuit of low wiring resistance and high density can be formed and wherein a high-degree integration can be achieved to thereby bring about an economic advantage. In particular, there is provided a process for producing an integrated circuit, comprising coating a substrate provided with wiring channels with a coating liquid for integrated circuit formation containing conductive fine particles to thereby form an integrated circuit on the substrate, wherein the coating liquid for integrated circuit formation while being exposed to ultrasonic waves is applied to the wiring channels.
    Type: Application
    Filed: November 1, 2002
    Publication date: August 21, 2003
    Inventors: Atsushi Tonai, Toshiharu Hirai, Tsuguo Koyanagi, Masayuki Matsuda, Michio Komatsu
  • Publication number: 20030157317
    Abstract: A transparent film-coated substrate is provided which has a transparent film having a low refractive index, and a less shrinking property; and being excellent in adhesiveness to a substrate or a transparent electroconductive film formed on the substrate, and in the film strength, the water resistance, the chemical resistance, and so forth.
    Type: Application
    Filed: November 8, 2002
    Publication date: August 21, 2003
    Inventors: Takeo Ito, Hidemi Matsuda, Yoshimi Otami, Kazuhiko Yui, Toshiharu Hirai, Hiroyasu NIshida, MIchio Komatsu
  • Patent number: 6180030
    Abstract: A coating liquid for forming a transparent conductive coating, comprising fine particles of a composite metal having an average particle size of 1 to 200 nm and a polar solvent. The above composite metal particles are preferably composed of an alloy of a plurality of metals or comprise fine metal particles or the fine alloy particles covered by a metal having a standard hydrogen electrode potential higher than that of the metal or alloy metal. A substrate with transparent conductive coating comprising a transparent conductive fine particle layer including the composite metal particles and a transparent coating disposed on the transparent conductive fine particle layer. A display device comprising a front panel composed of the above substrate with transparent conductive coating, the transparent conductive coating being formed at an outer surface of the front panel.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: January 30, 2001
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Toshiharu Hirai, Michio Komatsu, Mitsuaki Kumazawa, Yuji Tawarazako
  • Patent number: 6136228
    Abstract: A coating liquid for forming a transparent conductive coating, comprising fine particles of a composite metal having an average particle size of 1 to 200 nm and a polar solvent. The above composite metal particles are preferably composed of an alloy of a plurality of metals or comprise fine metal particles or the fine alloy particles covered by a metal having a standard hydrogen electrode potential higher than that of the metal or alloy metal.A substrate with transparent conductive coating comprising a transparent conductive fine particle layer including the composite metal particles and a transparent coating disposed on the transparent conductive fine particle layer.A display device comprising a front panel composed of the above substrate with transparent conductive coating, the transparent conductive coating being formed at an outer surface of the front panel.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: October 24, 2000
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Toshiharu Hirai, Michio Komatsu, Mitsuaki Kumazawa, Yuji Tawarazako
  • Patent number: 5492762
    Abstract: Conductive substrate having on their surface a coating formed from a coating solution for forming a transparent conductive coating prepared by dispersion of dissolving in water and/or organic solvent such conductive particles as having (a) an average particle diameter of not more than 500 .ANG., wherein (b) an amount of particles having a particle diameter of not more than 600 .ANG. is more than 60% by weight, (c) an amount of particles having a particle diameter of not more than 100 .ANG. is more than 5% by weight and (d) an amount of particles having a particle diameter of more than 1000 .ANG.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: February 20, 1996
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Toshiharu Hirai, Michio Komatsu, Akira Nakashima, Yoneji Abe, Yukihiro Iwasaki
  • Patent number: 5424008
    Abstract: In accordance with the present invention, there are provided coating solutions for forming transparent conductive ceramic coatings, said coating solutions being homogeneous solutions or dispersions of acetylacetonate chelate compound, conductive substances and, if necessary, silicon compound and/or alkoxides of metals other than silicon in mixtures of water and organic solvents, and substrates having thereon transparent conductive ceramic coatings formed from said coating solutions and uses thereof.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: June 13, 1995
    Assignee: Catalysts & Chemical Industries Co., Ltd.
    Inventors: Toshiharu Hirai, Yoneji Abe, Michio Komatsu