Patents by Inventor Kosuke Fujiwara
Kosuke Fujiwara 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).
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Patent number: 10245636Abstract: A method for manufacturing a core (S1) includes: a coating step (S20) of adding an organic binder to a large particle group composed of silica-containing large particles, and coating surfaces of the large particles with the organic binder; a mixing step (S30) of mixing, after the coating step (S20), the large particle group and a small particle group composed of silica-containing small particles having a smaller particle size than the large particles; a laminate shaping step (S40) of forming, after the mixing step (S30), a molding in which a mixture of the large and small particle groups is used; and a sintering step (S60) of sintering the molding after the laminate shaping step (S40).Type: GrantFiled: March 5, 2015Date of Patent: April 2, 2019Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kosuke Fujiwara, Sachio Shimohata, Kazutaka Mori, Hidetaka Oguma, Ikuo Okada, Yoshitaka Uemura
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Publication number: 20170028461Abstract: A method for manufacturing a core (S1) includes: a coating step (S20) of adding an organic binder to a large particle group composed of silica-containing large particles, and coating surfaces of the large particles with the organic binder; a mixing step (S30) of mixing, after the coating step (S20), the large particle group and a small particle group composed of silica-containing small particles having a smaller particle size than the large particles; a laminate shaping step (S40) of forming, after the mixing step (S30), a molding using to a laminate shaping method in which a mixture of the large and small particle groups is used; and a sintering step (S60) of sintering the molding after the laminate shaping step (S40).Type: ApplicationFiled: March 5, 2015Publication date: February 2, 2017Inventors: Kosuke FUJIWARA, Sachio SHIMOHATA, Kazutaka MORI, Hidetaka OGUMA, Ikuo OKADA, Yoshitaka UEMURA
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Patent number: 9295888Abstract: A shaft for a golf club is capable of hitting a higher ball and reducing a spin on the ball. The shaft has a distal part that is provided with a clubhead, a proximal part that is provided with a grip, an intermediate part arranged between the distal and proximal parts, and a thick part set to thicken a wall thickness of the intermediate part relative to the distal part, a reinforcing part set at the intermediate part, or a combination of the thick part and the reinforcing part. With this, the shaft improves a rigidity at the intermediate part so that a change in rigidity between the distal part and the intermediate part has an inflection point.Type: GrantFiled: March 14, 2013Date of Patent: March 29, 2016Assignee: NHK Spring Co., Ltd.Inventors: Kosuke Fujiwara, Naruki Yatsuda
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Patent number: 9237994Abstract: A glass flake (10) having improved heat resistance and chemical resistance is formed from a glass base material satisfying, in mass %, 60?SiO2?75, 5<Al2O3?15, 3?CaO?20, 6?Na2O?20 and 9?(Li2O+Na2O+K2O)?13. When 9?(Li2O+Na2O+K2O)?13 is satisfied in mass %, the CaO content and the Na2O content are preferably set within the ranges of 5?CaO?20 and 6?Na2O?13, respectively. When 13?(Li2O+Na2O+K2O)?20 is satisfied in mass %, the CaO content and the Na2O content are preferably set within the ranges of 3?CaO?15 and 9?Na2O?20, respectively. The working temperature of the glass base material is preferably 1180° C.-1300° C. The temperature difference AT obtained by taking the devitrification temperature of the glass base material from the working temperature of the glass base material is preferably 0° C.-200° C. The glass transition temperature of the glass base material is preferably 550° C.-700° C. The acid resistance index ?W of the glass base material is preferably 0.05-1.5 mass %.Type: GrantFiled: August 26, 2009Date of Patent: January 19, 2016Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Kosuke Fujiwara, Akihiro Koyama
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Patent number: 9212288Abstract: Disclosed is a glass flake (10) having improved heat resistance and improved chemical durability, which is composed of a glass base material satisfying, as expressed in mass %, 60?SiO2?70, 5?Al2O3?15, 1?MgO?10, 10?CaO?25 and 4<(Li2O+Na2O+K2O)<9. The temperature difference ?T obtained by taking the devitrification temperature of the glass base material from the working temperature thereof is preferably within the range of 0-200° C. The glass transition temperature of the glass base material is preferably within the range of 560-750° C. It is desirable that the value of ?W, which serves as an index for the acid resistance of the glass base material, is within the range of 0.05-1.2 mass %.Type: GrantFiled: May 28, 2009Date of Patent: December 15, 2015Assignee: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Kosuke Fujiwara, Akihiro Koyama
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Publication number: 20140045605Abstract: A shaft for a golf club is capable of hitting a higher ball and reducing a spin on the ball. The shaft has a distal part that is provided with a clubhead, a proximal part that is provided with a grip, an intermediate part arranged between the distal and proximal parts, and a thick part set to thicken a wall thickness of the intermediate part relative to the distal part, a reinforcing part set at the intermediate part, or a combination of the thick part and the reinforcing part. With this, the shaft improves a rigidity at the intermediate part so that a change in rigidity between the distal part and the intermediate part has an inflection point.Type: ApplicationFiled: March 14, 2013Publication date: February 13, 2014Inventors: Kosuke FUJIWARA, Naruki YATSUDA
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Patent number: 8383532Abstract: The glass flake of the present invention has a composition that includes, in terms of mass %, 60<SiO2?65, 8?Al2O3?15, 47?(SiO2—Al2O3)?57, 1?MgO?5, 18?CaO?30, 0<Li2O?4, 0<(Li2O+Na2O+K2O)?4, and 0?TiO2?5, and that is substantially free from B2O3, F, ZnO, BaO, SrO, and ZrO2.Type: GrantFiled: June 21, 2007Date of Patent: February 26, 2013Assignee: Nippon Sheet Glass Company, LimitedInventors: Kosuke Fujiwara, Akihiro Koyama, Koichi Sakaguchi
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Patent number: 8383531Abstract: A glass flake of the present invention has a composition that includes, in terms of mass %, 59?SiO2<65, 8?Al2O3?15, 47<(SiO2—Al2O3)?57, 1?MgO?5, 20?CaO?30, 0<(Li2O+Na2O+K2O)<2, and 0?TiO2?5 and that is substantially free from B2O3, F, ZnO, BaO, SrO, and ZrO2.Type: GrantFiled: December 22, 2005Date of Patent: February 26, 2013Assignee: Nippon Sheet Glass Company, LimitedInventors: Kosuke Fujiwara, Akihiro Koyama
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Patent number: 8338524Abstract: Disclosed is a glass composition which can be suitably used as a glass filler to be blended into a polycarbonate resin. This glass composition contains, in mass %, 50?SiO2?60, 8?Al2O3?15, 0?MgO?10, 10?CaO?30, 0?Li2O+Na2O+K2O<2, and 5<TiO2?10, and does not substantially contain B2O3, F, ZnO, SrO, BaO and ZrO2.Type: GrantFiled: June 17, 2008Date of Patent: December 25, 2012Assignee: Nippon Sheet Glass Company, LimitedInventors: Kosuke Fujiwara, Akihiro Koyama
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Patent number: 8304484Abstract: Disclosed is a glass composition having a stable quality, which can be easily obtained. This glass composition can be used as a glass filler to be blended into a polycarbonate resin, and enables to reduce the load imposed on a glass manufacturing apparatus. Specifically, this glass composition contains, in mass %, 50?SiO2?60, 8?Al2O3?15, 0?MgO?10, 5?CaO<21, 0<SrO+BaO?25, 10<MgO+SrO+BaO?30, 0?Li2O+Na2O+K2O<2, 2<TiO2?10 and 0?ZrO2<2 and does not substantially contain B2O3, F, and ZnO.Type: GrantFiled: June 17, 2008Date of Patent: November 6, 2012Assignee: Nippon Sheet Glass Company, LimitedInventors: Kosuke Fujiwara, Akihiro Koyama
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Publication number: 20110151261Abstract: A glass flake (10) having improved heat resistance and chemical resistance is formed from a glass base material satisfying, in mass %, 60?SiO2?75, 5<Al2O3?15, 3?CaO?20, 6?Na2O?20 and 9?(Li2O+Na2O+K2O)?13. When 9?(Li2O+Na2O+K2O)?13 is satisfied in mass %, the CaO content and the Na2O content are preferably set within the ranges of 5?CaO?20 and 6?Na2O?13, respectively. When 13?(Li2O+Na2P+K2O)?20 is satisfied in mass %, the CaO content and the Na2O content are preferably set within the ranges of 3?CaO?15 and 9?Na2O?20, respectively. The working temperature of the glass base material is preferably 1180° C.-1300° C. The temperature difference ?T obtained by taking the devitrification temperature of the glass base material from the working temperature of the glass base material is preferably 0° C.-200° C. The glass transition temperature of the glass base material is preferably 550° C.-700° C. The acid resistance index ?W of the glass base material is preferably 0.05-1.5 mass %.Type: ApplicationFiled: August 26, 2009Publication date: June 23, 2011Applicant: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Kosuke Fujiwara, Akihiro Koyama
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Publication number: 20110070444Abstract: Disclosed is a glass flake (10) having improved heat resistance and improved chemical durability, which is composed of a glass base material satisfying, as expressed in mass %, 65?SiO2?70, 5?Al2O3?15, 1?MgO?10, 10?CaO?25 and 0.1?(Li2O+Na2O+K2O)?4. The temperature difference ?T obtained by taking the devitrification temperature of the glass base material from the working temperature thereof is preferably within the range of 0° C. to 200° C. The glass transition temperature of the glass base material is preferably within the range of 580° C. to 800° C. Furthermore, it is desirable that the value of ?W, which serves as an index for the acid resistance of the glass base material forming the glass flake (10), is within the range of 0.05 to 0.8 mass %.Type: ApplicationFiled: May 28, 2009Publication date: March 24, 2011Applicant: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Kosuke Fujiwara, Akihiro Koyama
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Publication number: 20110064951Abstract: Disclosed is a glass flake (10) having improved heat resistance and improved chemical durability, which is composed of a glass base material satisfying, as expressed in mass %, 60?SiO2?70, 5?Al2O3?15, 1?MgO?10, 10?CaO?25 and 4<(Li2O+Na2O+K2O)<9. The temperature difference ?T obtained by taking the devitrification temperature of the glass base material from the working temperature thereof is preferably within the range of 0-200° C. The glass transition temperature of the glass base material is preferably within the range of 560-750° C. It is desirable that the value of ?W, which serves as an index for the acid resistance of the glass base material, is within the range of 0.05-1.2 mass %.Type: ApplicationFiled: May 28, 2009Publication date: March 17, 2011Applicant: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Kosuke Fujiwara, Akihiro Koyama
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Publication number: 20100183737Abstract: The glass flake of the present invention has a composition that includes, in terms of mass %, 60<SiO2?65, 8?Al2O3?15, 47?(SiO2—Al2O3)?57, 1?MgO?5, 18?CaO?30, 0<Li2O?4, 0<(Li2O+Na2O+K2O)?4, and 0?TiO2?5, and that is substantially free from B2O3, F, ZnO, BaO, SrO, and ZrO2.Type: ApplicationFiled: June 21, 2007Publication date: July 22, 2010Applicant: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Kosuke Fujiwara, Akihiro Koyama, Koichi Sakaguchi
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Publication number: 20100160528Abstract: Disclosed is a glass composition having a stable quality, which can be easily obtained. This glass composition can be used as a glass filler to be blended into a polycarbonate resin, and enables to reduce the load imposed on a glass manufacturing apparatus. Specifically, this glass composition contains, in mass %, 50?SiO2?60, 8?Al2O3?15, 0?MgO?10, 5?CaO<21, 0<SrO+BaO?25, 10<MgO+SrO+BaO?30, 0?Li2O+Na2O+K2O<2, 2<TiO2?10 and 0?ZrO2<2 and does not substantially contain B2O3, F, and ZnO.Type: ApplicationFiled: June 17, 2008Publication date: June 24, 2010Applicant: Nippon Sheet Glass Company LimitedInventors: Kosuke Fujiwara, Akihiro Koyama
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Publication number: 20100029830Abstract: Disclosed is a glass composition which can be suitably used as a glass filler to be blended into a polycarbonate resin. This glass composition contains, in mass %, 50?SiO2?60, 8?Al2O3?15, 0?MgO?10, 10?CaO?30, 0?Li2O+Na2O+K2O<2, and 5<TiO2?10, and does not substantially contain B2O3, F, ZnO, SrO, BaO and ZrO2.Type: ApplicationFiled: June 17, 2008Publication date: February 4, 2010Applicant: Nippon Sheet Glass Company, LimitedInventors: Kosuke Fujiwara, Akihiro Koyama
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Patent number: 7641730Abstract: The present invention provides a glass flake having sufficiently high visible-light absorptivity. The glass flake of the present invention includes a glass composition that contains a transition metal oxide such as an iron oxide and that allows the glass flake to have a visible-light transmittance of 85% or lower measured with an A light source when the glass flake has a thickness of 15 ?m. In this glass composition, it is preferable that the content of Fe2O3 (T?Fe2O3) in terms of the total iron satisfies the following formula, expressed in mass %: 10<T?Fe2O3?50.Type: GrantFiled: February 27, 2004Date of Patent: January 5, 2010Assignee: Nippon Sheet Glass Company, LimitedInventors: Kosuke Fujiwara, Makoto Umino, Akihiro Koyama, Haruki Niida
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Publication number: 20090105061Abstract: The present invention provides a glass composition that has good formability and tends not to cause electric-field breakdown when formed into a spacer for an electron beam-excited display. The present invention relates to a glass composition that contains the following components, in terms of mass %: 20?SiO2<40, 6<B2O3?30, 0?Al2O3?20, 45?(SiO2+B2O3+Al2O3)?74, 0?MgO?15, 5?CaO?40, 0?SrO?30, 0?BaO?25, 0<(SrO+BaO)?50, 20?(MgO+CaO+SrO+BaO)?60, 0?ZnO?10, 0?ZrO2<10, 0?La2O3?20, 0?Y2O3?10, 0?TiO2?3, 1?Fe2O3?12, 0?Nb2O5?10, 0?Ta2O5?10, and 1?TiO2+Fe2O3+Nb2O5+Ta2O5?12 and that is substantially free of alkali metal oxide.Type: ApplicationFiled: April 27, 2007Publication date: April 23, 2009Applicant: Nippon Sheet Glass Company, LimitedInventors: Kosuke Fujiwara, Akihiro Koyama, Hiroshi Kambayashi
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Publication number: 20080124559Abstract: A glass flake of the present invention has a composition that includes, in terms of mass %, 59?SiO2<65, 8?Al2O3?15, 47<(SiO2—Al2O3)?57, 1?MgO?5, 20?CaO?30, 0<(Li2O+Na2O+K2O)<2, and 0?TiO2?5 and that is substantially free from B2O3, F, ZnO, BaO, SrO, and ZrO2.Type: ApplicationFiled: December 22, 2005Publication date: May 29, 2008Applicant: Nippon Sheet Glass Company, LimitedInventors: Kosuke Fujiwara, Akihiro Koyama
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Patent number: 7285508Abstract: The present invention provides a glass flake that is substantially free of boron trioxide (B2O3), barium oxide (BaO), zinc oxide (ZnO), and fluorine (F) and has sufficient heat resistance and good formability for glass flake. The glass flake of the present invention includes a glass composition that contains the following components, expressed in mol %; 50?SiO2?65; 4?Al2O3<12; 5?SrO?25; 10<(MgO+SrO)?30; 20?(MgO+CaO+SrO)?45; and 0<(Li2O+Na2O+K2O)<2; wherein the glass composition is substantially free of B2O3, BaO, ZnO, and F. This glass flake is useful for resin compositions, paints, cosmetics, ink compositions, and the like.Type: GrantFiled: April 30, 2004Date of Patent: October 23, 2007Assignee: Nippon Sheet Glass Company, LimitedInventors: Kosuke Fujiwara, Akihiro Koyama