Patents by Inventor Hideya Kaminaka

Hideya Kaminaka 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: 20140255816
    Abstract: A titanium material for a polymer electrolyte fuel cell separator consists of, by mass %, a platinum group metal: 0.005% to 0.15% and a rare earth metal: 0.002% to 0.10%, with the balance being Ti and impurities. The titanium material of the present invention is provided with a film formed of a titanium oxide and a platinum group metal on the surface thereof. It is preferred that the film has a thickness of 50 nm or less, and that the concentration of the platinum group metal on the surface of the film is 1.5% by mass or more. With the thus formed film, the titanium material of the present invention is capable of achieving a reduction in initial contact resistance and ensuring good corrosion resistance. In the titanium material of the present invention, the rare earth metal is preferably Y, and the platinum group metal is preferably Pd.
    Type: Application
    Filed: July 19, 2012
    Publication date: September 11, 2014
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Hideya Kaminaka, Kentarou Yoshida, Kouichi Takeuchi, Satoshi Matsumoto
  • Publication number: 20140161660
    Abstract: A titanium alloy including by mass %, a platinum group metal: 0.01 to 0.15% and a rare earth metal: 0.001 to 0.10%, with the balance being Ti and impurities. The titanium alloy preferably includes as a partial replacement for Ti, Co: 0.05 to 1.00% by mass, and the content of the platinum group metal is preferably in the range of 0.01 to 0.05% by mass. Furthermore, it is preferred that the platinum group metal be Pd and the rare earth metal be Y. Consequently, it is possible to provide a titanium alloy having corrosion resistance comparable to or better than that of the conventional art as well as good workability while offering an economic advantage with a lower content of platinum group metal or an advantage of less likelihood of corrosion growth originating at defects such as flaws that occurred in the surface.
    Type: Application
    Filed: July 20, 2012
    Publication date: June 12, 2014
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Hideya Kaminaka, Yoshihisa Yonemitsu, Satoshi Matsumoto, Kouichi Takeuchi
  • Patent number: 8603263
    Abstract: The present invention provides a duplex stainless steel having excellent resistance to alkalis and particularly corrosion resistance against high-temperature concentrated alkali solutions and excellent weldability. The duplex stainless steel has a chemical composition comprising, in mass %, C: at most 0.03%, Si: at most 0.5%, Mn: at most 2.0%, P: at most 0.04%, S: at most 0.003%, Cr: at least 25.0% to less than 28.0%, Ni: at least 6.0% to at most 10.0%, Mo: at least 0.2% to at most 3.5%, N: less than 0.5%, W: at most 3.0%, and a remainder of Fe and impurities.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: December 10, 2013
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Hideya Kaminaka, Junichi Higuchi, Yoshiaki Yamade, Shuuji Yoshida, Junko Imamura
  • Publication number: 20130209874
    Abstract: The clad material comprises outer layers each consisting of Ni or Ni alloy and a base layer consisting of Cu or Cu alloy, and is characterized in that peeling-off at a clad boundary is not recognized in cross section observation made after the clad material has been subjected to a 90° reverse bend test ten times, and the number of reverse bend cycles before rupture is 17 cycles or more. The clad material has with both of excellent corrosion resistance against electrolytic solution and high electric conductivity.
    Type: Application
    Filed: June 2, 2011
    Publication date: August 15, 2013
    Applicant: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Kentarou Yoshida, Daisaku Arizono, Syuji Yoshida, Hayato Kita, Kouichi Takeuchi, Masayuki Shibuya, Hideya Kaminaka
  • Publication number: 20120244031
    Abstract: The present invention provides a duplex stainless steel having excellent resistance to alkalis and particularly corrosion resistance against high-temperature concentrated alkali solutions and excellent weldability. The duplex stainless steel has a chemical composition comprising, in mass %, C: at most 0.03%, Si: at most 0.5%, Mn: at most 2.0%, P: at most 0.04%, S: at most 0.003%, Cr: at least 25.0% to less than 28.0%, Ni: at least 6.0% to at most 10.0%, Mo: at least 0.2% to at most 3.5%, N: less than 0.5%, W: at most 3.0%, and a remainder of Fe and impurities.
    Type: Application
    Filed: May 1, 2012
    Publication date: September 27, 2012
    Applicant: SUMITOMO METAL INDUSTRIES, LTD.
    Inventors: Hideya KAMINAKA, Junichi Higuchi, Yoshiaki Yamade, Shuuji Yoshida, Junko Imamura
  • Publication number: 20110250522
    Abstract: A stainless steel member for a separator of a solid polymer fuel cell which has excellent cell properties with little deterioration in performance over long periods of operation without worsening of the corrosion resistance of a stainless steel separator is provided. A stainless steel member has a stainless steel base metal, and a passive film and electrically conductive precipitates both provided on a surface of the stainless steel base metal. The electrically conductive precipitate penetrates the passive film and includes a substance originating from the stainless steel base metal. An electrically conductive layer comprising a nonmetallic electrically conductive substance is preferably provided on the surface of the passive film, and the electrically conductive layer is preferably electrically connected to the stainless steel base member through the electrically conductive precipitates.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 13, 2011
    Applicant: SUMITOMO METAL INDUSTRIES, LTD
    Inventors: Hideya KAMINAKA, Junko IMAMURA, Akira SEKI, Kouichi TAKEUCHI
  • Publication number: 20110159397
    Abstract: A stainless steel member comprising a stainless steel base metal; an oxide film located on the surface of the stainless steel base metal; an electroconductive layer located on the surface of the oxide film and comprising a nonmetallic electroconductive material; and an electroconductive material which is located so as to penetrate the oxide film and which electrically contacts the stainless steel base metal and the electroconductive layer is provided as a stainless steel member for a separator of a solid polymer fuel cell having excellent properties such that a degradation in performance is low even after prolonged operation. A solid polymer fuel cell using the stainless steel member is also provided.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 30, 2011
    Applicant: SUMITOMO METAL INDUSTRIES, LTD.
    Inventors: Hideya KAMINAKA, Junko IMAMURA, Yasuto HIGASHIDA
  • Patent number: 7659033
    Abstract: A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of boron and having a looped closure structure at an end of a graphite c-planar layer on the surface of a powder, with the density of the interstitial planar sections between neighboring closure structures being not less than 100/?m and not more than 1500/?m, and with d002 being preferably not larger than 3.3650 ?, is manufactured by (1) heat-treating a carbon material pulverized at an elevated speed before or after carbonization for graphization at temperature exceeding 1500° C. or by (2) heat-treating the carbon material pulverized before or after carbonization at a temperature exceeding 1500° C.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: February 9, 2010
    Assignee: Sony Corporation
    Inventors: Koji Moriguchi, Mitsuhara Yonemura, Kazuhito Kamei, Masaru Abe, Hideya Kaminaka, Noriyuki Negi, Atsuo Omaru, Masayuki Nagamine
  • Publication number: 20070154812
    Abstract: A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of boron and having a looped closure structure at an end of a graphite c-planar layer on the surface of a powder, with the density of the interstitial planar sections between neighboring closure structures being not less than 100/?m and not more than 1500/?m, and with d002 being preferably not larger than 3.3650 ?, is manufactured by (1) heat-treating a carbon material pulverized at an elevated speed before or after carbonization for graphization at temperature exceeding 1500° C. or by (2) heat-treating the carbon material pulverized before or after carbonization at a temperature exceeding 1500° C.
    Type: Application
    Filed: March 14, 2007
    Publication date: July 5, 2007
    Applicant: SONY CORPORATION
    Inventors: Koji Moriguchi, Mitsuhara Yonemura, Kazuhito Kamei, Masaru Abe, Hideya Kaminaka, Noriyuki Negi, Atsuo Omaru, Masayuki Nagamine
  • Patent number: 7214447
    Abstract: A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of boron and having a looped closure structure at an end of a graphite c-planar layer on the surface of a powder, with the density of the interstitial planar sections between neighboring closure structures being not less than 100/?m and not more than 1500/?m, and with d002 being preferably not larger than 3.3650 ?, is manufactured by (1) heat-treating a carbon material pulverized at an elevated speed before or after carbonization for graphization at temperature exceeding 1500° C. or by (2) heat-treating the carbon material pulverized before or after carbonization at a temperature exceeding 1500° C.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: May 8, 2007
    Assignee: Sony Corporation
    Inventors: Koji Moriguchi, Mitsuhara Yonemura, Kazuhito Kamei, Masaru Abe, Hideya Kaminaka, Noriyuki Negi, Atsuo Omaru, Masayuki Nagamine
  • Publication number: 20060134523
    Abstract: A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of boron and having a looped closure structure at an end of a graphite c-planar layer on the surface of a powder, with the density of the interstitial planar sections between neighboring closure structures being not less than 100/?m and not more than 1500/?m, and with d002 being preferably not larger than 3.3650 ?, is manufactured by (1) heat-treating a carbon material pulverized at an elevated speed before or after carbonization for graphization at temperature exceeding 1500° C. or by (2) heat-treating the carbon material pulverized before or after carbonization at a temperature exceeding 1500° C.
    Type: Application
    Filed: April 16, 2004
    Publication date: June 22, 2006
    Inventors: Koji Moriguchi, Mitsuharu Yonemura, Kazuhito Kamei, Masaru Abe, Hideya Kaminaka, Noriyuki Negi, Atsuo Omaru, Masayuki Nagamine
  • Patent number: 6881518
    Abstract: A negative electrode material for a nonaqueous electrolyte secondary battery having a high discharge capacity and a good cycle life is made from alloy particles having an average particle diameter of 0.1-50 ?m and including Si phase grains 40 and a phase of a solid solution or an intermetallic compound of Si and other element selected from Group 2A elements, transition elements, Group 3B elements, and Group 4B elements from the long form periodic table (for example, an NiSi2 phase 42 and an [NiSi2+NiSi] phase 41) at least partially enveloping the Si phase grains. 5-99 wt % of this material is Si phase grains. The alloy particles can be manufactured by rapid solidification (such as atomization or roller quenching) of a melt including Si and the other element, or by adhering the other element to Si powder by electroless plating or mechanical alloying and then performing heat treatment.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: April 19, 2005
    Assignees: Sumitomo Metal Industries, Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideya Kaminaka, Masaru Abe, Noriyuki Negi, Yoshiaki Nitta, Harunari Shimamura, Kazuhiro Okamura
  • Patent number: 6835496
    Abstract: A negative electrode material for a nonaqueous electrolyte secondary battery having a high discharge capacity and a good cycle life is made from alloy particles having an average particle diameter of 0.1-50 &mgr;m and including Si phase grains 40 and a phase of a solid solution or an intermetallic compound of Si and other element selected from Group 2A elements, transition elements, Group 3B elements, and Group 4B elements from the long form periodic table (for example, an NiSi2 phase 42 and an [NiSi2+NiSi] phase 41) at least partially enveloping the Si phase grains. 5-99 wt % of this material is Si phase grains. The alloy particles can be manufactured by rapid solidification (such as atomization or roller quenching) of a melt including Si and the other element, or by adhering the other element to Si powder by electroless plating or mechanical alloying and then performing heat treatment.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: December 28, 2004
    Assignees: Sumitomo Metal Industries, Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideya Kaminaka, Masaru Abe, Noriyuki Negi, Yoshiaki Nitta, Harunari Shimamura, Kazuhiro Okamura
  • Patent number: 6764767
    Abstract: A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of boron and having a looped closure structure at an end of a graphite c-planar layer on the surface of a powder, with the density of the interstitial planar sections between neighboring closure structures being not less than 100/&mgr;m and not more than 1500/&mgr;m, and with d002 being preferably not larger than 3.3650 Å, is manufactured by (1) heat-treating a carbon material pulverized at an elevated speed before or after carbonization for graphization at temperature exceeding 1500° C. or by (2) heat-treating the carbon material pulverized before or after carbonization at a temperature exceeding 1500° C.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: July 20, 2004
    Assignee: Sony Corporation
    Inventors: Koji Moriguchi, Mitsuhara Yonemura, Kazuhito Kamei, Masaru Abe, Hideya Kaminaka, Noriyuki Negi, Atsuo Omaru, Masayuki Nagamine
  • Publication number: 20030175589
    Abstract: A negative electrode material for a nonaqueous electrolyte secondary battery having a high discharge capacity and a good cycle life is made from alloy particles having an average particle diameter of 0.1-50 &mgr;m and including Si phase grains 40 and a phase of a solid solution or an intermetallic compound of Si and other element selected from Group 2A elements, transition elements, Group 3B elements, and Group 4B elements from the long form periodic table (for example, an NiSi2 phase 42 and an [NiSi2+NiSi] phase 41) at least partially enveloping the Si phase grains. 5-99 wt % of this material is Si phase grains. The alloy particles can be manufactured by rapid solidification (such as atomization or roller quenching) of a melt including Si and the other element, or by adhering the other element to Si powder by electroless plating or mechanical alloying and then performing heat treatment.
    Type: Application
    Filed: January 31, 2003
    Publication date: September 18, 2003
    Inventors: Hideya Kaminaka, Masaru Abe, Noriyuki Negi, Yoshiaki Nitta, Harunari Shimamura, Kazuhiro Okamura
  • Patent number: 6576369
    Abstract: A graphite powder has surface closed-end structures in which the graphite c-plane layers of the graphite layer crystal lattices have closed-ends on the surface of the graphite powder by linking the ends of one or more pairs of the c-plane layers, leaving interstices which are open on the surface of the graphite. The number of open interstices is at least 100 and at most 1500 per micrometer in a c-axis direction of the graphite. Preferably, the graphite powder has a specific surface area of 1.0 m2/g or less. Such a graphite powder can be prepared either by graphitizing a carbon material, which has been pulverized at a high speed under well-controlled conditions before and/or after the carbonization, or by subjecting a carbon material, which has been pulverized under well-controlled conditions before and/or after the carbonization, to graphitization and then to oxidative heat treatment at a temperature of 600-800° C. and finally to heat treatment at a temperature of 800° C. or higher in an inert gas.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: June 10, 2003
    Assignees: Sumitomo Metal Industries, Ltd., Sony Corporation
    Inventors: Koji Moriguchi, Mitsuharu Yonemura, Kazuhito Kamei, Noriyuki Negi, Masaru Abe, Hideya Kaminaka
  • Publication number: 20010051300
    Abstract: A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of boron and having a looped closure structure at an end of a graphite c-planar layer on the surface of a powder, with the density of the interstitial planar sections between neighboring closure structures being not less than 100/&mgr;m and not more than 1500/&mgr;m, and with d002 being preferably not larger than 3.3650 Å, is manufactured by (1) heat-treating a carbon material pulverized at an elevated speed before or after carbonization for graphization at temperature exceeding 1500° C. or by (2) heat-treating the carbon material pulverized before or after carbonization at a temperature exceeding 1500° C.
    Type: Application
    Filed: April 16, 1999
    Publication date: December 13, 2001
    Inventors: KOJI MORIGUCHI, MITSUHARA YONEMURA, KAZUHITO KAMEI, MASARU ABE, HIDEYA KAMINAKA, NORIYUKI NEGI, ATSUO OMARU, MASAYUKI NAGAMINE