Patents by Inventor Masaharu Uno

Masaharu Uno 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: 20150329385
    Abstract: Subject: An electrolyzed water generating method and a generator to produce both acidic electrolyzed water free from alkaline-metal chloride (19) and alkaline electrolyzed water free from alkaline-metal chloride (9) by electrolyzing aqueous solution (7) with dissolved alkaline-metal chloride (11).
    Type: Application
    Filed: January 28, 2014
    Publication date: November 19, 2015
    Inventors: Masaharu UNO, Katsumi HAMAGUCHI
  • Patent number: 9175410
    Abstract: The current invention is to provide an oxygen gas diffusion cathode for brine electrolysis which reduces an initial electrolysis voltage and is excellent in the durability against short-circuit, and an electrolytic cell and an electrolytic method using the same. The oxygen gas diffusion cathode for brine electrolysis includes a gas diffusion layer 13 and a reaction layer 14 on one surface of an electro-conductive substrate 12, and an electro-conductive layer 15 on the opposite surface thereof. The present oxygen gas diffusion cathode reduces the resistance of the electro-conductive substrate 12 and supplies uniform current by mounting the electro-conductive layer 15.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: November 3, 2015
    Assignees: PERMELEC ELECTRODE LTD., KANEKA CORPORATION, TOAGOSEI CO., LTD., CHLORINE ENGINEERS CORP., LTD.
    Inventors: Yuki Izawa, Setsuro Ogata, Masaharu Uno, Masashi Tanaka
  • Publication number: 20130037415
    Abstract: The current invention is to provide an oxygen gas diffusion cathode for brine electrolysis which reduces an initial electrolysis voltage and is excellent in the durability against short-circuit, and an electrolytic cell and an electrolytic method using the same. The oxygen gas diffusion cathode for brine electrolysis includes a gas diffusion layer 13 and a reaction layer 14 on one surface of an electro-conductive substrate 12, and an electro-conductive layer 15 on the opposite surface thereof. The present oxygen gas diffusion cathode reduces the resistance of the electro-conductive substrate 12 and supplies uniform current by mounting the electro-conductive layer 15.
    Type: Application
    Filed: February 15, 2011
    Publication date: February 14, 2013
    Inventors: Yuki Izawa, Setsuro Ogata, Masaharu Uno, Masashi Tanaka
  • Patent number: 8349164
    Abstract: The present invention provides a conductive diamond electrode structure for use in electrolytic synthesis of a fluorine-containing material with a fluoride ion-containing molten salt electrolytic bath, which comprises: a conductive electrode feeder; and a conductive diamond catalyst carrier comprising a conductive substrate and a conductive diamond film carried on a surface thereof, wherein the conductive diamond catalyst carrier is detachably attached to the conductive electrode feeder at a portion to be immersed in the electrolytic bath. Also disclosed is an electrolytic synthesis of a fluorine-containing material using the conductive diamond electrode structure.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: January 8, 2013
    Assignee: Permelec Electrode Ltd.
    Inventors: Tsuneto Furuta, Setsuro Ogata, Masaharu Uno
  • Patent number: 7887679
    Abstract: The present invention provides a method of sterilization with an electrolytic water, including: electrolyzing a raw water with an electrolytic unit including: a cathode; and an anode at least having a part containing a conductive diamond to prepare an electrolytic water; and ejecting the electrolytic water to a substance to be sterilized, and an electrolytic water ejecting apparatus.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: February 15, 2011
    Assignees: Permelec Electrode Ltd., Institute of National Colleges of Technology, Japan
    Inventors: Noriyuki Kitaori, Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta
  • Patent number: 7858551
    Abstract: The present invention provides an electrode catalyst for electrochemical reaction, the electrode catalyst having: a conductive diamond particle having fine pores on a surface thereof; and a carbon-reactive catalyst metal in the fine pores, a process for producing the electrode catalyst, and an electrode.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: December 28, 2010
    Assignees: Permelec Electrode Ltd., Shinshu University
    Inventors: Yoshio Takasu, Yasushi Murakami, Wataru Sugimoto, Yuji Yamada, Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta
  • Patent number: 7857953
    Abstract: The present invention provides an oxygen-reduction gas diffusion cathode having: a porous conductive substrate; diamond particle having a hydrophobic surface; and catalyst particle, the diamond particle and the catalyst particle being disposed on the porous conductive substrate, and a method of sodium chloride electrolysis using the cathode.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: December 28, 2010
    Assignee: Permelec Electrode Ltd.
    Inventors: Yuji Yamada, Yuki Izawa, Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta
  • Publication number: 20100193371
    Abstract: The present invention provides an electrode for electrolysis, wherein the electrode comprises: a substrate comprising an electrically conductive material, wherein the surface of the substrate is made of glassy carbon; and an electrically conductive diamond film with which at least part of the substrate is coated.
    Type: Application
    Filed: February 1, 2010
    Publication date: August 5, 2010
    Applicant: PERMELEC ELECTRODE LTD.
    Inventors: Akimasa TASAKA, Masaharu UNO, Yoshinori NISHIKI, Tsuneto FURUTA
  • Publication number: 20080314759
    Abstract: The present invention provides a conductive diamond electrode structure for use in electrolytic synthesis of a fluorine-containing material with a fluoride ion-containing molten salt electrolytic bath, which comprises: a conductive electrode feeder; and a conductive diamond catalyst carrier comprising a conductive substrate and a conductive diamond film carried on a surface thereof, wherein the conductive diamond catalyst carrier is detachably attached to the conductive electrode feeder at a portion to be immersed in the electrolytic bath. Also disclosed is an electrolytic synthesis of a fluorine-containing material using the conductive diamond electrode structure.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 25, 2008
    Applicant: PERMELEC ELECTRODE LTD.
    Inventors: Tsuneto FURUTA, Setsuro OGATA, Masaharu UNO
  • Patent number: 7468121
    Abstract: The present invention provides a conductive diamond electrode having: a conductive substrate; a coating layer formed on a surface of the conductive substrate, the coating layer containing one of a metal and an alloy each including at least one of niobium and tantalum; and a conductive diamond layer formed on a surface of the coating layer, and a process for producing the conductive diamond electrode.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: December 23, 2008
    Assignee: Permelec Electrode Ltd.
    Inventors: Masashi Hosonuma, Masaharu Uno, Tomoyasu Shibata, Yoshinori Nishiki, Tsuneto Furuta
  • Patent number: 7438790
    Abstract: The present invention provides an electrode for electrolysis including: a conductive substrate; and a conductive diamond formed on a surface of the conductive substrate, the conductive substrate having at least one surface shape selected from the group consisting of: (a) a surface shape of a combination of an Ra of 100-1,000-?m and an RSm of 50-10,000 ?m; (b) a surface shape of a combination of an Ra of 2.5-100 ?m and an RSm of 1.5-800 ?m, and (c) a surface shape of a combination of an Ra of 0.01-2 ?m and an RSm of 0.005-250 ?m, and a process for producing the electrode.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: October 21, 2008
    Assignee: Permelec Electrode Ltd.
    Inventors: Masashi Hosonuma, Masaharu Uno, Tomoyasu Shibata, Yoshinori Nishiki, Tsuneto Furuta
  • Patent number: 7335285
    Abstract: The present invention provides an electrolytic anode for use in electrolytically synthesizing a fluorine-containing substance by using an electrolytic bath containing a fluoride ion including: an electroconductive substrate having a sure including an electroconductive carbonaceous material; and an electroconductive carbonaceous film having a diamond structure, the electroconductive carbonaceous film coating a part of the electroconductive carbonaceous substrate, and a method for electrolytically synthesizing a fluorine-containing substance using the electrolytic anode.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: February 26, 2008
    Assignees: Permelec Electrode Ltd., Toyo Tanso Co., Ltd.
    Inventors: Tsuneto Furuta, Masaharu Uno, Yoshinori Nishiki, Tetsuro Tojo, Hitoshi Takebayashi, Masashi Kodama
  • Patent number: 7285194
    Abstract: A conductive diamond electrode including a conductive substrate comprising a carbonaceous material, a conductive diamond catalyst layer formed on a surface of the conductive substrate, and a carbon fluoride formed on an exposed portion present on the surface of the conductive substrate. The formed carbon fluoride prevents the conductive substrate from contacting with an electrolytic solution, thereby suppressing corrosion of the substrate. A long life of the electrode can be attained.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: October 23, 2007
    Assignees: Permelec Electrode Ltd., Toyo Tanso Co., Ltd.
    Inventors: Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta, Miho Ohashi, Tetsuro Tojo, Hitoshi Takebayashi, Tateki Kurosu
  • Publication number: 20070212594
    Abstract: The present invention provides an electrode catalyst for electrochemical reaction, the electrode catalyst having: a conductive diamond particle having fine pores on a surface thereof; and a carbon-reactive catalyst metal in the fine pores, a process for producing the electrode catalyst, and an electrode.
    Type: Application
    Filed: March 9, 2007
    Publication date: September 13, 2007
    Applicants: PERMELEC ELECTRODE LTD., Shinshu University
    Inventors: Yoshio Takasu, Yasushi Murakami, Wataru Sugimoto, Yuji Yamada, Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta
  • Publication number: 20070170070
    Abstract: The present invention provides an electrolysis cell for synthesizing a perchloric acid compound, the electrolysis cell having: a feedstock solution containing a chloride or a chloric acid compound; a cathode; and an anode having an electroconductive diamond as an anode substance, the anode electrolytically oxidizing the chloride or the chloric acid compound to synthesize the perchloric acid compound, and a method for electrolytically synthesizing a perchloric acid compound.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 26, 2007
    Applicant: PREMELEC ELECTRODE LTD.
    Inventors: Masaharu Uno, Miwako Nara, Yoshinori Nishiki, Tsuneto Furuta
  • Publication number: 20070144897
    Abstract: Simple and economic electrolytic synthesis of peracetic acid is performed, and cold drink containers, etc., are sterilized/cleaned with an aqueous solution of peracetic acid thus obtained. Peracetic acid is electrolytically synthesized from acetic acid and/or acetate and an oxygen-containing gas as starting materials in the presence of a solid acid catalyst in an electrolytic cell. An object to be cleaned is sterilized/cleaned with an aqueous solution of peracetic acid thus obtained. Peracetic acid can be simply obtained at a reduced cost. The sterilizing/cleaning of an object to be cleaned with peracetic acid can be conducted efficiently.
    Type: Application
    Filed: February 27, 2007
    Publication date: June 28, 2007
    Inventors: Takeo Ohsaka, Madhu Saha, Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta
  • Patent number: 7217347
    Abstract: A diamond electrode having a prolonged life by combining a conventional diamond electrode having a relatively short life with other components is provided. A diamond electrode for electrolysis includes an electrode substrate, at least the surface of which comprises Magneli phase titanium oxide, and conductive diamond supported as an electrode catalyst on a surface of the electrode. The electrode catalyst may contain a titanium oxide powder. Magneli phase titanium oxide improves conductivity without forming a stable oxide layer on the substrate surface.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: May 15, 2007
    Assignee: Permelec Electrode Ltd.
    Inventors: Masashi Hosonuma, Miwako Nara, Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta, Tateki Kurosu, Osamu Fukunaga, Tetsuro Tojo
  • Publication number: 20070095676
    Abstract: The present invention provides an oxygen-reduction gas diffusion cathode having: a porous conductive substrate; diamond particle having a hydrophobic surface; and catalyst particle, the diamond particle and the catalyst particle being disposed on the porous conductive substrate, and a method of sodium chloride electrolysis using the cathode.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 3, 2007
    Inventors: Yuji Yamada, Yuki Izawa, Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta
  • Publication number: 20070031694
    Abstract: The present invention provides a conductive diamond electrode having: a conductive substrate; a coating layer formed on a surface of the conductive substrate, the coating layer containing one of a metal and an alloy each including at least one of niobium and tantalum; and a conductive diamond layer formed on a surface of the coating layer, and a process for producing the conductive diamond electrode.
    Type: Application
    Filed: August 1, 2006
    Publication date: February 8, 2007
    Inventors: Masashi Hosonuma, Masaharu Uno, Tomoyasu Shibata, Yoshinori Nishiki, Tsuneto Furuta
  • Publication number: 20070029190
    Abstract: The present invention provides an electrode for electrolysis including: a conductive substrate; and a conductive diamond formed on a surface of the conductive substrate, the conductive substrate having at least one surface shape selected from the group consisting of: (a) a surface shape of a combination of an Ra of 100-1,000-?m and an RSm of 50-10,000 ?m; (b) a surface shape of a combination of an Ra of 2.5-100 ?m and an RSm of 1.5-800 ?m, and (c) a surface shape of a combination of an Ra of 0.01-2 ?m and an RSm of 0.005-250 ?m, and a process for producing the electrode.
    Type: Application
    Filed: July 25, 2006
    Publication date: February 8, 2007
    Inventors: Masashi Hosonuma, Masaharu Uno, Tomoyasu Shibata, Yoshinori Nishiki, Tsuneto Furuta