Patents by Inventor Fumiaki Kikui
Fumiaki Kikui 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: 8338058Abstract: There is provided a separator for a fuel cell having a very good anticorrosiveness and electrical conductivity. A separator for a fuel cell according to the present invention includes: a base 1 formed of a steel which contains 10.5 mass % or more of Cr; a metal film 3 formed on the surface of the base 1; and an intermediate layer 2 formed between the base 1 and the metal film 3, the intermediate layer 2 containing oxygen. The metal film 3 is composed of at least one metallic element selected from the group consisting of Ta, Nb, and Ti, and the intermediate layer 2 contains Fe and Cr which are contained in the steel and at least one metallic element selected from the group consisting of Ta, Nb, and Ti composing the metal film 3.Type: GrantFiled: January 24, 2006Date of Patent: December 25, 2012Assignee: Neomax Materials Co., Ltd.Inventor: Fumiaki Kikui
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Patent number: 8334078Abstract: A separator for a fuel cell according to the present invention includes: a base 1 containing 70 mass % or more of Al; an underlying layer 2 being formed on the base and containing Ti; an intermediate layer 3 being formed on the underlying layer and containing TiNx or TiOy; and a conductive metal layer 4 being formed on the intermediate layer and containing Au or Pt. The separator for a fuel cell according to the present invention has an excellent anticorrosiveness although a base containing aluminum as a main component is used.Type: GrantFiled: November 16, 2007Date of Patent: December 18, 2012Assignee: Neomax Materials Co., Ltd.Inventors: Masayuki Yokota, Fumiaki Kikui, Ken Asada
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Patent number: 8101867Abstract: An electroless Ni—P plating method according to the present invention includes the steps of: providing a substrate including an insulating substrate and a copper alloy layer that has a predetermined pattern including a plurality of island portions that are isolated from each other; providing a plating solution to carry out electroless Ni—P plating; providing a solid piece including Ni, Ni—P, Co or Co—Ni on at least the surface thereof; and bringing the solid piece into contact with the surface of at least two of the island portions that are both in contact with the plating solution, thereby selectively forming an electroless Ni—P plated coating on the surface of the island portions. Thus, the present invention provides a Ni—P plating method that can subject the copper pattern on the insulating substrate to high-precision selective Ni—P plating on an industrial basis.Type: GrantFiled: June 22, 2007Date of Patent: January 24, 2012Assignee: Neomax Materials Co., Ltd.Inventors: Masayuki Yokota, Ken Asada, Fumiaki Kikui
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Patent number: 8088536Abstract: There is provided a fuel cell separator having a very good anticorrosiveness and electrical conductivity. A fuel cell separator includes: a base formed of a steel which contains 10.5 mass % or more of Cr; a metal film formed on the surface of the base; and an intermediate layer formed between the base and the metal film, the intermediate layer containing oxygen. The metal film is composed of Au or Pt, and the intermediate layer contains Fe and Cr which are contained in the steel and Au or Pt composing the metal film.Type: GrantFiled: September 8, 2005Date of Patent: January 3, 2012Assignee: Neomax Materials Co., Ltd.Inventor: Fumiaki Kikui
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Publication number: 20110318484Abstract: A silver-coated ball 10 according to the present invention includes: a spherical core 1; and a coating layer 2 including silver superfine particles, which is arranged so as to surround the core 1. The silver superfine particles included in the coating layer 2 have a mean particle size of 1 nm to 50 nm.Type: ApplicationFiled: September 8, 2011Publication date: December 29, 2011Applicant: NEOMAX MATERIALS CO., LTD.Inventors: Ken ASADA, Fumiaki KIKUI
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Patent number: 8039107Abstract: A silver-coated ball 10 according to the present invention includes: a spherical core 1; and a coating layer 2 including silver superfine particles, which is arranged so as to surround the core 1. The silver superfine particles included in the coating layer 2 have a mean particle size of 1 nm to 50 nm.Type: GrantFiled: May 23, 2006Date of Patent: October 18, 2011Assignee: Neomax Materials Co., Ltd.Inventors: Ken Asada, Fumiaki Kikui
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Patent number: 7830001Abstract: A Cu—Mo substrate 10 according to the present invention includes: a Cu base 1 containing Cu as a main component; an Mo base having opposing first and second principal faces 2a, 2b and containing Mo as a main component, the second principal face 2b of the Mo base 2 being positioned on at least a portion of a principal face 1a of the Cu base 1; and a first Sn—Cu-type alloy layer 3 covering the first principal face 2a and side faces 2c and 2d of the Mo base 2, the first Sn—Cu-type alloy layer 3 containing no less than 1 mass % and no more than 13 mass % of Sn.Type: GrantFiled: May 23, 2006Date of Patent: November 9, 2010Assignee: Neomax Materials Co., Ltd.Inventors: Masayuki Yokota, Kazuhiro Shiomi, Fumiaki Kikui, Masaaki Ishio
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Publication number: 20100055539Abstract: A separator for a fuel cell according to the present invention includes: a base 1 containing 70 mass % or more of Al; an underlying layer 2 being formed on the base and containing Ti; an intermediate layer 3 being formed on the underlying layer and containing TiNx or TiOy; and a conductive metal layer 4 being formed on the intermediate layer and containing Au or Pt. The separator for a fuel cell according to the present invention has an excellent anticorrosiveness although a base containing aluminum as a main component is used.Type: ApplicationFiled: November 16, 2007Publication date: March 4, 2010Applicant: NEOMAX MATERIALS CO., LTD.Inventors: Masayuki Yokota, Fumiaki Kikui, Ken Asada
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Publication number: 20090286099Abstract: A silver-coated ball 10 according to the present invention includes: a spherical core 1; and a coating layer 2 including silver superfine particles, which is arranged so as to surround the core 1. The silver superfine particles included in the coating layer 2 have a mean particle size of 1 nm to 50 nm.Type: ApplicationFiled: May 23, 2006Publication date: November 19, 2009Applicant: NEOMAX MATERIALS CO., LTD.Inventors: Ken Asada, Fumiaki Kikui
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Publication number: 20090178831Abstract: An electroless Ni—P plating method according to the present invention includes the steps of: providing a substrate including an insulating substrate and a copper alloy layer that has a predetermined pattern including a plurality of island portions that are isolated from each other; providing a plating solution to carry out electroless Ni—P plating; providing a solid piece including Ni, Ni—P, Co or Co—Ni on at least the surface thereof; and bringing the solid piece into contact with the surface of at least two of the island portions that are both in contact with the plating solution, thereby selectively forming an electroless Ni—P plated coating on the surface of the island portions. Thus, the present invention provides a Ni—P plating method that can subject the copper pattern on the insulating substrate to high-precision selective Ni—P plating on an industrial basis.Type: ApplicationFiled: June 22, 2007Publication date: July 16, 2009Applicant: NEOMAX MATERIALS CO., LTD.Inventors: Masayuki Yokota, Ken Asada, Fumiaki Kikui
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Patent number: 7517555Abstract: A copper plating solution according to the present invention is characterized by that it comprising 0.03 mol/L to 0.5 mol/L of copper sulfate, 0.05 mol/L to 0.7 mol/L of ethylenediaminetetraacetic acid and 0.02 mol/L to 0.3 mol/L of sulfite, and has a pH adjusted to 5.0 to 8.5. A method for copper plating according to the present invention is characterized by that it comprises using the copper plating solution above. The copper plating solution and the method for copper plating according to the present invention stably provide a uniform copper plating film excellent in adhesion on the surface of an article to be plated, such as rare earth metal-based permanent magnet.Type: GrantFiled: April 26, 2002Date of Patent: April 14, 2009Assignee: Hitachi Metals, Ltd.Inventors: Fumiaki Kikui, Kaoru Kojima, Yoriyoshi Oooka, Kohshi Yoshimura
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Publication number: 20090045506Abstract: A Cu—Mo substrate 10 according to the present invention includes: a Cu base 1 containing Cu as a main component; an Mo base having opposing first and second principal faces 2a, 2b and containing Mo as a main component, the second principal face 2b of the Mo base 2 being positioned on at least a portion of a principal face 1a of the Cu base 1; and a first Sn—Cu-type alloy layer 3 covering the first principal face 2a and side faces 2c and 2d of the Mo base 2, the first Sn—Cu-type alloy layer 3 containing no less than 1 mass % and no more than 13 mass % of Sn.Type: ApplicationFiled: May 23, 2006Publication date: February 19, 2009Applicant: NEOMAX MATERIALS CO., LTD.Inventors: Masayuki Yokota, Kazuhiro Shiomi, Fumiaki Kikui, Masaaki Ishio
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Patent number: 7449100Abstract: An object of the present invention is to provide a method for forming a uniform and dense electroplating film with high adhesion strength on the surface of an article, yet irrespective of the surface material and the surface properties of the article. A means for a solution of the problem comprises: forming on the surface of the article, a resin coating made of a resin containing dispersed therein a powder of a first metal; then forming a second-metal substituted plating film on the surface of the resin coating by immersing the resin-coated article in a solution containing ions of a second metal having an ionization potential nobler than that of the first metal; and further forming an electroplating film of a third metal on the surface of the metal-substituted plating film.Type: GrantFiled: October 25, 2002Date of Patent: November 11, 2008Assignee: Hitachi Metals, Ltd.Inventors: Kohshi Yoshimura, Fumiaki Kikui
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Publication number: 20080138691Abstract: There is provided a separator for a fuel cell having a very good anticorrosiveness and electrical conductivity. A separator for a fuel cell according to the present invention includes: a base 1 formed of a steel which contains 10.5 mass % or more of Cr; a metal film 3 formed on the surface of the base 1; and an intermediate layer 2 formed between the base 1 and the metal film 3, the intermediate layer 2 containing oxygen. The metal film 3 is composed of at least one metallic element selected from the group consisting of Ta, Nb, and Ti, and the intermediate layer 2 contains Fe and Cr which are contained in the steel and at least one metallic element selected from the group consisting of Ta, Nb, and Ti composing the metal film 3.Type: ApplicationFiled: January 24, 2006Publication date: June 12, 2008Inventor: Fumiaki Kikui
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Publication number: 20080107928Abstract: There is provided a separator for a fuel cell having a very good anticorrosiveness and electrical conductivity. A separator for a fuel cell includes: a base 1 formed of a steel which contains 10.5 mass % or more of Cr; a metal film 3 formed on the surface of the base 1; and an intermediate layer 2 formed between the base 1 and the metal film 3, the intermediate layer 2 containing oxygen. The metal film 3 is composed of Au or Pt, and the intermediate layer 2 contains Fe and Cr which are contained in the steel and Au or Pt composing the metal film 3.Type: ApplicationFiled: September 8, 2005Publication date: May 8, 2008Inventor: Fumiaki Kikui
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Patent number: 7270714Abstract: A surface treating process according to the present invention, a vapor deposited film is formed from an easily oxidizable vapor-depositing material on the surface of a work by evaporating the vapor-depositing material in a state in which the vapor deposition controlling gas has been supplied to at least zones near a melting/evaporating source and the work within a treating chamber. Thus, the vapor deposited film can be formed stably on the surface of a desired work without requirement of a long time for providing a high degree of vacuum and without use of a special apparatus. In addition, the use of the surface treating process ensures that a corrosion resistance can be provided to a rare earth metal-based permanent magnet extremely liable to be oxidized, without degradation of a high magnetic characteristic of the magnet.Type: GrantFiled: July 9, 2003Date of Patent: September 18, 2007Assignee: Sumitomo Special Metals Co., Ltd.Inventors: Takeshi Nishiuchi, Yoshimi Tochishita, Fumiaki Kikui, Mitsuo Kizawa
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Patent number: 7265046Abstract: A solder ball 50 according to the present invention includes a spherical core 2 and a solder layer 4, which includes Sn and Ag and which is provided so as to wrap the core 2 up. The amount of water contained in the solder layer 4 is 100 ?l/g or less when represented by the amount of water vapor in standard conditions.Type: GrantFiled: September 24, 2003Date of Patent: September 4, 2007Assignee: Neomax Material Co., Ltd.Inventors: Masuo Kondo, Fumiaki Kikui
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Publication number: 20070072425Abstract: A substrate according to the present invention includes a metal plate, and an insulating film, which is provided on the surface of the metal plate and which includes needle alumina particles and granular particles. The substrate of the present invention has excellent insulating property and can be manufactured on an industrial basis with acceptable efficiency.Type: ApplicationFiled: October 6, 2004Publication date: March 29, 2007Applicant: NEOMAX MATERIALS CO., LTD.Inventors: Fumiaki Kikui, Akio Morishita, Masato Yasuoka
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Patent number: 7053745Abstract: A rare earth metal-based permanent magnet has a film layer formed substantially of only a fine metal powder on a metal forming the surface of the magnet. The rare earth metal-based permanent magnet having the film layer on its surface is produced in the following manner: A rare earth metal-based permanent magnet and a fine metal powder forming material are placed into a treating vessel, where both of them are vibrated and/or agitated, whereby a film layer made of a fine metal powder produced from the fine metal powder producing material is formed on a metal forming the surface of the magnet. Thus, the formation of a corrosion-resistant film such as plated film can be achieved at a high thickness accuracy by forming an electrically conductive layer uniformly and firmly on the entire surface of the magnet without use of a third component such as a resin and a coupling agent.Type: GrantFiled: February 11, 2002Date of Patent: May 30, 2006Assignee: Neomax Co., Ltd.Inventors: Kohshi Yoshimura, Takeshi Nishiuchi, Fumiaki Kikui
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Publication number: 20060055054Abstract: A solder ball 50 according to the present invention includes a spherical core 2 and a solder layer 4, which includes Sn and Ag and which is provided so as to wrap the core 2 up. The amount of water contained in the solder layer 4 is 100 ?l/g or less when represented by the amount of water vapor in standard conditions.Type: ApplicationFiled: September 24, 2003Publication date: March 16, 2006Applicant: Neomax Materials Co., Ltd.Inventors: Masuo Kondo, Fumiaki Kikui