Patents by Inventor Takamichi Inaba
Takamichi Inaba 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: 9227870Abstract: There is provided a glass fiber comprising the SiO2 content is 57.0 to 63.0% by weight; the Al2O3 content is 19.0 to 23.0% by weight; the MgO content is 10.0 to 15.0% by weight; the CaO content is 4.0 to 11.0% by weight; and the total content of SiO2, Al2O3, MgO and CaO is 99.5% by weight or higher based on the total weight.Type: GrantFiled: August 22, 2014Date of Patent: January 5, 2016Assignee: NITTO BOSEKI CO., LTD.Inventors: Takashi Nonaka, Hiroshi Kanno, Takamichi Inaba
-
Publication number: 20150011374Abstract: There is provided a glass fiber comprising the SiO2 content is 57.0 to 63.0% by weight; the Al2O3 content is 19.0 to 23.0% by weight; the MgO content is 10.0 to 15.0% by weight; the CaO content is 4.0 to 11.0% by weight; and the total content of SiO2, Al2O3, MgO and CaO is 99.5% by weight or higher based on the total weight.Type: ApplicationFiled: August 22, 2014Publication date: January 8, 2015Applicant: NITTO BOSEKI CO., LTD.Inventors: Takashi Nonaka, Hiroshi Kanno, Takamichi Inaba
-
Patent number: 8841222Abstract: There is provided a glass fiber comprising the SiO2 content is 57.0 to 63.0% by weight; the Al2O3 content is 19.0 to 23.0% by weight; the MgO content is 10.0 to 15.0% by weight; the CaO content is 4.0 to 11.0% by weight; and the total content of SiO2, Al2O3, MgO and CaO is 99.5% by weight or higher based on the total weight.Type: GrantFiled: May 30, 2011Date of Patent: September 23, 2014Assignee: Nitto Boseki Co., Ltd.Inventors: Takashi Nonaka, Hiroshi Kanno, Takamichi Inaba
-
Publication number: 20130210602Abstract: There is provided a glass fiber comprising the SiO2 content is 57.0 to 63.0% by weight; the Al2O3 content is 19.0 to 23.0% by weight; the MgO content is 10.0 to 15.0% by weight; the CaO content is 4.0 to 11.0% by weight; and the total content of SiO2, Al2O3, MgO and CaO is 99.5% by weight or higher based on the total weight.Type: ApplicationFiled: May 30, 2011Publication date: August 15, 2013Applicant: NITTO BOSEKI CO., LTD.Inventors: Takashi Nonaka, Hiroshi Kanno, Takamichi Inaba
-
Patent number: 7501207Abstract: The present invention provides a hydrogen absorbing alloy containing as a principal phase at least one phase selected from the group consisting of a second phase having a rhombohedral crystal structure and a first phase having a crystal structure of a hexagonal system excluding a phase having a CaCu5 type structure, wherein a content of a phase having a crystal structure of AB2 type is not higher than 10% by volume including 0% by volume and the hydrogen absorbing alloy has a composition represented by general formula (1) given below: R1-a-bMgaTbNiZ-X-Y-?M1XM2YMn???(1).Type: GrantFiled: April 25, 2007Date of Patent: March 10, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Isao Sakai, Tatsuoki Kohno, Shirou Takeno, Takamichi Inaba, Hideki Yoshida, Masaaki Yamamoto, Hirotaka Hayashida, Shusuke Inada, Hiroshi Kitayama, Motoya Kanda, Fumiyuki Kawashima, Takao Sawa
-
Patent number: 7300720Abstract: The present invention provides a hydrogen absorbing alloy containing as a principal phase at least one phase selected from the group consisting of a second phase having a rhombohedral crystal structure and a first phase having a crystal structure of a hexagonal system excluding a phase having a CaCu5 type structure, wherein a content of a phase having a crystal structure of AB2 type is not higher than 10% by volume including 0% by volume and the hydrogen absorbing alloy has a composition represented by general formula (1) given below: R1-a-bMgaTbNiZ-X-Y-?M1XM2YMn?.Type: GrantFiled: December 1, 2005Date of Patent: November 27, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Isao Sakai, Tatsuoki Kohno, Shirou Takeno, Takamichi Inaba, Hideki Yoshida, Masaaki Yamamoto, Hirotaka Hayashida, Shusuke Inada, Hiroshi Kitayama, Motoya Kanda, Fumiyuki Kawashima, Takao Sawa
-
Publication number: 20070259264Abstract: The present invention provides a hydrogen absorbing alloy containing as a principal phase at least one phase selected from the group consisting of a second phase having a rhombohedral crystal structure and a first phase having a crystal structure of a hexagonal system excluding a phase having a CaCu5 type structure, wherein a content of a phase having a crystal structure of AB2 type is not higher than 10% by volume including 0% by volume and the hydrogen absorbing alloy has a composition represented by general formula (1) given below: R1-a-bMgaTbNiZ-X-Y-?M1XM2YMn???(1)Type: ApplicationFiled: April 25, 2007Publication date: November 8, 2007Inventors: Isao Sakai, Tatsuoki Kohno, Shirou Takeno, Takamichi Inaba, Hideki Yoshida, Masaaki Yamamoto, Hirotaka Hayashida, Shusuke Inada, Hiroshi Kitayama, Motoya Kanda, Fumiyuki Kawashima, Takao Sawa
-
Publication number: 20070190417Abstract: The present invention provides a hydrogen absorbing alloy containing as a principal phase at least one phase selected from the group consisting of a second phase having a rhombohedral crystal structure and a first phase having a crystal structure of a hexagonal system excluding a phase having a CaCu5 type structure, wherein a content of a phase having a crystal structure of AB2 type is not higher than 10% by volume including 0% by volume and the hydrogen absorbing alloy has a composition represented by general formula (1) given below: R1-a-bMgaTbNiZ-X-Y-?M1XM2YMn???(1)Type: ApplicationFiled: April 25, 2007Publication date: August 16, 2007Inventors: Isao Sakai, Tatsuoki Kohno, Shirou Takeno, Takamichi Inaba, Hideki Yoshida, Masaaki Yamamoto, Hirotaka Hayashida, Shusuke Inada, Hiroshi Kitayama, Motoya Kanda, Fumiyuki Kawashima, Takao Sawa
-
Publication number: 20060254678Abstract: The present invention provides a hydrogen absorbing alloy containing as a principal phase at least one phase selected from the group consisting of a second phase having a rhombohedral crystal structure and a first phase having a crystal structure of a hexagonal system excluding a phase having a CaCu5 type structure, wherein a content of a phase having a crystal structure of AB2 type is not higher than 10% by volume including 0% by volume and the hydrogen absorbing alloy has a composition represented by general formula (1) given below: R1-a-bMgaTbNiZ-X-Y-?M1XM2YMn???(1)Type: ApplicationFiled: December 1, 2005Publication date: November 16, 2006Inventors: Isao Sakai, Tatsuoki Kohno, Shirou Takeno, Takamichi Inaba, Hideki Yoshida, Masaaki Yamamoto, Hirotaka Hayashida, Shusuke Inada, Hiroshi Kitayama, Motoya Kanda, Fumiyuki Kawashima, Takao Sawa
-
Patent number: 7005212Abstract: The present invention provides a hydrogen absorbing alloy containing as a principal phase at least one phase selected from the group consisting of a second phase having a rhombohedral crystal structure and a first phase having a crystal structure of a hexagonal system excluding a phase having a CaCu5 type structure, wherein a content of a phase having a crystal structure of AB2 type is not higher than 10% by volume including 0% by volume and the hydrogen absorbing alloy has a composition represented by general formula (1) given below: R1-a-bMgaTbNiZ-X-Y-?M1XM2YMn?.Type: GrantFiled: June 27, 2002Date of Patent: February 28, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Isao Sakai, Tatsuoki Kohno, Shirou Takeno, Takamichi Inaba, Hideki Yoshida, Masaaki Yamamoto, Hirotaka Hayashida, Shusuke Inada, Hiroshi Kitayama, Motoya Kanda, Fumiyuki Kawashima, Takao Sawa
-
Patent number: 6703164Abstract: There is provided a hydrogen-absorbing alloy comprising, as a principal phase, at least one kind of phase selected from the group consisting of a first phase having a hexagonal crystal system (excluding a phase having a CaCu5 type crystal structure) and a second phase having a rhombohedral crystal system, the hydrogen-absorbing alloy having a composition represented by the following general formula (1): R1-a-bMgaTbNiZ-X-Y-&agr;M1XM2YMn&agr; (1) wherein R is at least one kind of element selected from rare earth elements (which include Y), T is at least one element selected from the group consisting of Ca, Ti, Zr and Hf, M1 is at least one element selected from the group consisting of Co and Fe, M2 is at least one element selected from the group consisting of Al, Ga, Zn, Sn, Cu, Si, B, Nb, W, Mo, V, Cr, Ta, Li, P and S, and the atomic ratios of a, b, X, Y, &agr; and Z are respectively a number satisfying the conditions of: 0.15≦a≦0.37, 0≦b≦0.3, 0≦X≦1.3, 0≦Y≦0.Type: GrantFiled: June 4, 2001Date of Patent: March 9, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Hirotaka Hayashida, Masaaki Yamamoto, Hiroshi Kitayama, Shusuke Inada, Isao Sakai, Tatsuoki Kono, Hideki Yoshida, Takamichi Inaba, Motoya Kanda
-
Publication number: 20030096164Abstract: The present invention provides a hydrogen absorbing alloy containing as a principal phase at least one phase selected from the group consisting of a second phase having a rhombohedral crystal structure and a first phase having a crystal structure of a hexagonal system excluding a phase having a CaCu5 type structure, wherein a content of a phase having a crystal structure of AB2 type is not higher than 10% by volume including 0% by volume and the hydrogen absorbing alloy has a composition represented by general formula (1) given below:Type: ApplicationFiled: June 27, 2002Publication date: May 22, 2003Inventors: Isao Sakai, Tatsuoki Kohno, Shirou Takeno, Takamichi Inaba, Hideki Yoshida, Masaaki Yamamoto, Hirotaka Hayashida, Shusuke Inada, Hiroshi Kitayama, Motoya Kanda, Fumiyuki Kawashima, Takao Sawa
-
Publication number: 20010041292Abstract: There is provided a hydrogen-absorbing alloy comprising, as a principal phase, at least one kind of phase selected from the group consisting of a first phase having a hexagonal crystal system (excluding a phase having a CaCu5 type crystal structure) and a second phase having a rhombohedral crystal system, the hydrogen-absorbing alloy having a composition represented by the following general formula (1):Type: ApplicationFiled: June 4, 2001Publication date: November 15, 2001Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hirotaka Hayashida, Masaaki Yamamoto, Hiroshi Kitayama, Shusuke Inada, Isao Sakai, Tatsuoki Kono, Hideki Yoshida, Takamichi Inaba, Motoya Kanda
-
Patent number: 6268084Abstract: There is provided a hydrogen-absorbing alloy comprising, as a principal phase, at least one kind of phase selected from the group consisting of a first phase having a hexagonal crystal system (excluding a phase having a CaCu5 type crystal structure) and a second phase having a rhombohedral crystal system, the hydrogen-absorbing alloy having a composition represented by the following general formula (1): R1−a−bMgaTbNiZ−X−Y−&agr;M1XM2YMn60 (1) wherein R is at least one kind of element selected from rare earth elements (which include Y), T is at least one element selected from the group consisting of Ca, Ti, Zr and Hf, M1 is at least one element selected from the group consisting of Co and Fe, M2 is at least one element selected from the group consisting of Al, Ga, Zn, Sn, Cu, Si, B, Nb, W, Mo, V, Cr, Ta, Li, P and S, and the atomic ratios of a, b, X, Y, &agr; and Z are respectively a number satisfying the conditions of: 0.15≦a≦0.37, 0≦b≦0.3, 0≦X≦1.Type: GrantFiled: December 30, 1999Date of Patent: July 31, 2001Assignee: Kabushiki Kaisha ToshibaInventors: Hirotaka Hayashida, Masaaki Yamamoto, Hiroshi Kitayama, Shusuke Inada, Isao Sakai, Tatsuoki Kono, Hideki Yoshida, Takamichi Inaba, Motoya Kanda
-
Patent number: 6248475Abstract: There is provided a nickel-hydrogen secondary battery which comprises a negative electrode comprising a hydrogen-absorbing alloy represented by the following general formula (A), a positive electrode, and an alkaline electrolyte, and which meets the conditions represented by the formulas (1) and (2), (R1-xMgx)NiyAz (A) wherein R is at least one element selected from rare earth elements (including yttrium), Ca, Zr and Ti, A is at least one element selected from Co, Mn, Fe, V, Cr, Nb, Al, Ga, Zn, Sn, Cu, Si, P and B, and x, y and z are atomic ratio individually defined as 0<x<1, 0≦z≦1.5, 2.5≦y+z<4.5, 3.2≦P≦5.0 (1) 0.9≦Q≦0.2P+0.7 (2) wherein P is a quantity (g) of the hydrogen-absorbing alloy per theoretical capacity 1 Ah of the positive electrode, and Q is a quantity (mL) of the alkaline electrolyte per theoretical capacity 1 Ah of the positive electrode.Type: GrantFiled: November 27, 1998Date of Patent: June 19, 2001Assignee: Kabushiki Kaisha ToshibaInventors: Hirotaka Hayashida, Masaaki Yamamoto, Hiroshi Kitayama, Shusuke Inada, Isao Sakai, Tatsuoki Kono, Hideki Yoshida, Takamichi Inaba, Motoya Kanda
-
Patent number: 6214492Abstract: There is provided a hydrogen-absorbing alloy comprising at least one crystal phase consisting essentially of at least one unit cell which has a laminate structure comprising at least one A2B4 subcell and at least one AB5 subcell, and the aforementioned at least one unit cell satisfying the following formula (1), 0.5<X<1 (1) wherein A is at least one kind of element which is capable of generating heat of formation &Dgr;H (kJ/mol) of less than 20 kJ/mol at the occasion of generating a hydride from one mole of hydrogen at a temperature of 25° C., B is at least one kind of element which is capable of generating heat of formation &Dgr;H (kJ/mol) of not less than 20 kJ/mol at the occasion of generating a hydride from one mole of hydrogen at a temperature of 25° C., and X is a ratio in number of the aforementioned at least one A2B4 subcell to the aforementioned at least one AB5 subcell.Type: GrantFiled: March 17, 1999Date of Patent: April 10, 2001Assignee: Kabushiki Kaisha ToshibaInventors: Tatsuoki Kono, Isao Sakai, Hideki Yoshida, Takamichi Inaba, Masaaki Yamamoto, Shiro Takeno
-
Patent number: 6200705Abstract: A nickel-hydrogen secondary battery having a negative electrode comprising a hydrogen-absorbing alloy containing magnesium, a rare earth element and nickel as essential elements, which is capable of suppressing the self-discharge being occurred under the condition of high temperature storage, or the like. This secondary battery comprises a negative electrode containing a hydrogen-absorbing alloy, a positive electrode containing nickel hydroxide, a separator comprising a non-woven fabric, and an alkaline electrolyte. The hydrogen-absorbing alloy is represented by (R1−xMgx)NiyAz (wherein R is at least one element selected from rare earth elements (including yttrium), Ca, Zr and Ti, A is at least one element selected from Co, Mn, Fe, V, Cr, Nb, Al, Ga, Zn, Sn, Cu, Si, P and B), and x, y and z are atomic ratio individually defined as 0<x<1, 0≦z≦1.5, 2.5≦y+z<4.5).Type: GrantFiled: November 27, 1998Date of Patent: March 13, 2001Assignee: Kabushiki Kaisha ToshibaInventors: Hirotaka Hayashida, Hiroshi Kitayama, Masaaki Yamamoto, Shusuke Inada, Isao Sakai, Tatsuoki Kono, Hideki Yoshida, Takamichi Inaba, Motoya Kanda
-
Patent number: 6130006Abstract: There is provided a hydrogen-absorbing alloy which contains an alloy ingot manufactured by means of a casting or sintering method or a pulverized product of the alloy ingot, and the alloy ingot being represented by the following general formula (1),(Mg.sub.1-a-b R1.sub.a M1.sub.b)Ni.sub.z (1)wherein R1 is at least one element selected from rare earth elements (including Y), M1 is at least one element selected from elements having a larger electronegativity than that of Mg (excluding the elements of R1, Cr, Mn, Fe, Co, Cu, Zn and Ni), and a, b and z are respectively a number satisfying conditions 0.1.ltoreq.a.ltoreq.0.8, 0<b.ltoreq.0.9, 1-a-b>0, and 3.ltoreq.z.ltoreq.3.8.Type: GrantFiled: June 16, 1998Date of Patent: October 10, 2000Assignee: Kabushiki Kaisha ToshibaInventors: Tatsuoki Kohno, Isao Sakai, Masaaki Yamamoto, Motoya Kanda, Hideki Yoshida, Fumiyuki Kawashima, Takao Sawa, Takamichi Inaba, Shusuke Inada, Hirotaka Hayashida, Hiroshi Kitayama
-
Patent number: 6030724Abstract: A hydrogen-storage alloy containing as a component element thereof an element easily reactive with hydrogen to be selected from among the elements of Group 1A, Group 1A, Group 3A, Group 4A, and Group 4A in the Periodic Table of the Elements and having a quasi-crystalline phase as at least part of the component phases thereof. The quasi-crystalline phase has an element of axial rotation selected from among 5-fold, 8-fold, 10-fold, and 12-fold symmetric axis. The hydrogen-storage alloy exhibits outstanding resistance to corrosion, permits effective prevention of comminution, and further excels in terms of the abundance of hydrogen to be absorbed and released.Type: GrantFiled: August 2, 1996Date of Patent: February 29, 2000Assignee: Kabushiki Kaisha ToshibaInventors: Takao Sawa, Takamichi Inaba, Yumiko Takahashi
-
Patent number: 5843372Abstract: A hydrogen-absorbing alloy for battery according to the present invention comprises an alloy having the composition represented by a general formula A Ni.sub.a Mn.sub.b M.sub.c ?where, A is at least one kind of element selected from rare earth elements including Y (yttrium), M is a metal mainly composed of at least one kind of element selected from Co, Al, Fe, Si, Cr, Cu, Ti, Zr, Zn, Hf, V, Nb, Ta, Mo, W, Ag, Pd, B, Ga, In, Ge and Sn, 3.5.ltoreq.a.ltoreq.5, 0.1.ltoreq.b.ltoreq.1, 0.ltoreq.c.ltoreq.1, 4.5.ltoreq.a+b+c.ltoreq.6!, wherein the alloy has columnar structures in which the area ratio of the columnar structures having the ratio of a minor diameter to a major diameter (aspect ratio) of 1:2 or higher is 50% or more. Further, an average minor diameter of the columnar structures is set to 30 microns or less.Type: GrantFiled: December 17, 1996Date of Patent: December 1, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Hiroyuki Hasebe, Shusuke Inada, Yoshiyuki Isozaki, Takamichi Inaba, Takao Sawa, Hiromichi Horie, Noriaki Yagi, Hiromi Shizu, Yoshiko Kanazawa