Patents by Inventor Ryuji Monden

Ryuji Monden 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: 11407960
    Abstract: A method for producing a lubricating oil composition includes: a step of mixing a base oil and fullerene, dissolving a soluble component of the fullerene in the base oil, and obtaining a mixture of the base oil and fullerene; a step of removing an insoluble component included in the mixture and obtaining a fullerene solution; and a step of heat-treating the fullerene solution.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: August 9, 2022
    Assignees: SHOWA DENKO K.K., MITSUBISHI CORPORATION
    Inventors: Ryuji Monden, Yu Gao, Kunio Kondo, Masumi Kuritani
  • Publication number: 20220228084
    Abstract: This method for producing a lubricating oil composition includes: a step of dissolving fullerenes in a base oil mainly composed of a multiply alkylated cyclopentane oil or an ionic liquid containing an imide as a negative ion to obtain a fullerene solution; and a step of producing fullerenes adduct by subjecting the above-described fullerene solution to a heat treatment in a non-oxidizing atmosphere.
    Type: Application
    Filed: April 23, 2020
    Publication date: July 21, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryuji MONDEN, Kunio KONDO
  • Publication number: 20220220409
    Abstract: A lubricating oil composition is provided, including a fullerene and a base oil, in which the fullerene is a fullerene sublimate, and the base oil is a multiply alkylated cyclopentane oil or an ionic liquid.
    Type: Application
    Filed: April 23, 2020
    Publication date: July 14, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryuji MONDEN, Kunio KONDO
  • Publication number: 20220186136
    Abstract: A method for producing a lubricating oil composition of the present embodiment includes an irradiation step of irradiating a fullerene solution in which fullerenes are dissolved in a base oil with radiation, in which the above-described radiation is ultraviolet light or ionizing radiation.
    Type: Application
    Filed: April 23, 2020
    Publication date: June 16, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryuji MONDEN, Kunio KONDO
  • Publication number: 20220112923
    Abstract: The present disclosure provides a device for use as a wet clutch device or a wet brake device that can be used even if friction plates are at high temperatures in the wet clutch-brake. The wet clutch device or the wet brake device includes a disk to which a rotational force is input, and a plate to which the rotational force is transmitted from the disk, wherein the disk and the plate are engageable/separable, and wherein a lubricant composition containing a fullerene at a mass percentage of 0.0001% or more and a mass percentage of less than a saturation solubility of the fullerene is supplied between the disk and the plate.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 14, 2022
    Inventors: Ryuji MONDEN, Kunio KONDO
  • Publication number: 20220074840
    Abstract: The invention provides a method of inspecting a lubricating oil composition and a method of producing a lubricating oil composition. The inspecting method is capable of stably reproducing wear resistance characteristics by using a relatively easy measuring method even in the case where the lubricating oil composition contains a fullerene. In the method of inspecting the lubricating oil composition, the particle size (r) of particles present in the lubricating oil composition containing a base oil and fullerene is measured, and the lubricating oil composition is sorted on the basis of a predetermined range of the particle size (r) set by the relationship between the measured value of the particle size (r) and the measured value of the wear coefficient of the lubricating oil composition.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryuji MONDEN, Yasuyuki SAKAGUCHI, Hitomi KANE, Kunio KONDO
  • Patent number: 11220652
    Abstract: A method for inspecting a lubricant oil composition containing a base oil and a fullerene, the method including: measuring at least one of a lamellar length of the lubricating oil composition and a most abundant diameter in a particle size distribution obtained by a dynamic light scattering method, and selecting the lubricating oil composition whose measured value is within a set range.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: January 11, 2022
    Assignee: SHOWA DENKO K.K.
    Inventors: Ryuji Monden, Yu Gao, Masumi Kuritani, Kunio Kondo
  • Patent number: 11214749
    Abstract: The lubricating oil composition includes a base oil and a fullerene adduct.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: January 4, 2022
    Assignee: SHOWA DENKO K.K.
    Inventors: Ryuji Monden, Yu Gao, Kunio Kondo, Masumi Kuritani
  • Publication number: 20210371763
    Abstract: A fullerene-containing lubricating oil composition including a base oil and fullerene, wherein the fullerene is dissolved, and the concentration is 1 ppm by mass or more and less than 50 ppm by mass.
    Type: Application
    Filed: October 23, 2018
    Publication date: December 2, 2021
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryuji MONDEN, Yu GAO
  • Publication number: 20210371769
    Abstract: A method for producing a lubricating oil composition includes: a step of mixing a base oil and fullerene, dissolving a soluble component of the fullerene in the base oil, and obtaining a mixture of the base oil and fullerene; a step of removing an insoluble component included in the mixture and obtaining a fullerene solution; and a step of heat-treating the fullerene solution.
    Type: Application
    Filed: October 24, 2018
    Publication date: December 2, 2021
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryuji MONDEN, Yu GAO, Kunio KONDO, Masumi KURITANI
  • Publication number: 20210222083
    Abstract: A method for inspecting a lubricant oil composition containing a base oil and a fullerene, the method including: measuring at least one of a lamellar length of the lubricating oil composition and a most abundant diameter in a particle size distribution obtained by a dynamic light scattering method, and selecting the lubricating oil composition whose measured value is within a set range.
    Type: Application
    Filed: December 4, 2018
    Publication date: July 22, 2021
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryuji MONDEN, Yu GAO, Masumi KURITANI, Kunio KONDO
  • Patent number: 11043680
    Abstract: A redox flow battery includes: first carbon nanotubes having an average diameter of 100 nm or r core, and second carbon nanotubes having an average diameter of 30 nm or less, in which the second carbon nanotubes are adhered to surfaces of the first carbon nanotubes such that the second carbon nanotubes bridge between the plural first carbon nanotubes. Since the redox flow battery includes an electrode material and an electrode including the electrode material, the electromotive force and the charging capacity are high.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: June 22, 2021
    Assignee: SHOWA DENKO K.K.
    Inventors: Kenzo Hanawa, Ryuji Monden, Takenori Nishikata
  • Publication number: 20200339904
    Abstract: The lubricating oil composition includes a base oil and a fullerene adduct.
    Type: Application
    Filed: October 24, 2018
    Publication date: October 29, 2020
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryuji MONDEN, Yu GAO, Kunio KONDO, Masumi KURITANI
  • Patent number: 10044045
    Abstract: Provided is a process for producing a fuel cell electrode catalyst with high catalytic activity that is alternative to a noble metal catalyst, through a heat treatment at a relatively low temperature. A process for producing a fuel cell electrode catalyst includes a step (I) of obtaining a catalyst precursor, including a step (Ia) of mixing at least a metal compound (1), a nitrogen-containing organic compound (2), and a fluorine-containing compound (3), and a step (II) of heat-treating the catalyst precursor at a temperature of 500 to 1300° C. to obtain an electrode catalyst, a portion or the entirety of the metal compound (1) being a compound containing an atom of a metal element M1 selected from the group consisting of iron, cobalt, chromium, nickel, copper, zinc, titanium, niobium and zirconium, and at least one of the compounds (1), (2) and (3) containing an oxygen atom.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: August 7, 2018
    Assignee: SHOWA DENKO K.K.
    Inventors: Ryuji Monden, Takuya Imai, Yuji Ito, Kunchan Lee, Takashi Sato
  • Publication number: 20180126408
    Abstract: A device for manufacturing a carbon nanotube composite sheet includes: a dispersion liquid production unit for producing a carbon nanotube dispersion liquid; a coating unit for coating the dispersion liquid; a dehydration unit for dehydrating the coated dispersion liquid; and a finishing unit for cutting a sheet dehydrated in the dehydration unit, wherein the dispersion liquid production unit includes a mixing tank provided with a wet-type jet mill, the coating unit includes a coating device provided with a base unit and a dispersion liquid supply unit for supplying the dispersion liquid produced by the dispersion liquid production unit to the base unit, and the dehydration unit is provided with a compression unit for compressing a wet carbon nanotube composite sheet obtained in the coating unit, and a dehydration device for dehydrating the compressed wet carbon nanotube composite sheet.
    Type: Application
    Filed: May 12, 2016
    Publication date: May 10, 2018
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryuji MONDEN, Kenzo HANAWA
  • Patent number: 9660272
    Abstract: An oxygen reduction catalyst which includes composite particles including a portion including an inorganic metal compound and a portion containing carbon. The composite particles include a metal element M1, carbon, and oxygen as constituent elements; the amount of carbon atoms is 1 to 10 mol, and the amount of oxygen atoms is 1 to 3 mol, assuming that the total amount of atoms in the metal element M1 is 1 mol; a G-band and a D-band are present in a Raman spectrum, and a V/G ratio defined in an expression described below is 0.10 to 0.35: V/G ratio=(minimum value of spectral intensity in region V which is a region between G-band and D-band)/(peak intensity in G-band).
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: May 23, 2017
    Assignee: SHOWA DENKO K.K.
    Inventors: Yuji Ito, Junya Sakaguchi, Takuya Imai, Ryuji Monden, Masayuki Yoshimura
  • Patent number: 9640801
    Abstract: A catalyst carrier production process includes a step (a) of mixing a transition metal compound (1), a nitrogen-containing organic compound (2), and a solvent to provide a catalyst carrier precursor solution; a step (b) of removing the solvent from the catalyst carrier precursor solution; and a step (c) of thermally treating a solid residue obtained in the step (b) at a temperature of 500 to 1100° C. to provide a catalyst carrier; wherein the transition metal compound (1) is partly or wholly a compound including a transition metal element (M1) selected from the group 4 and 5 elements of the periodic table as a transition metal element; and at least one of the transition metal compound (1) and the nitrogen-containing organic compound (2) includes an oxygen atom.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: May 2, 2017
    Assignee: SHOWA DENKO K.K.
    Inventors: Masaki Horikita, Kunchan Lee, Ryuji Monden, Chunfu Yu, Yasuaki Wakizaka, Takashi Sato, Yoshinori Abe
  • Patent number: 9570757
    Abstract: Provided is a fuel cell catalyst layer which has a catalytic performance equivalent to or higher than fuel cell catalyst layers containing platinum alone and which is inexpensive. The fuel cell catalyst layer of the present invention includes a metal oxycarbonitride-containing layer (I) and a platinum-containing layer (II). It is preferable that the mass ratio per unit area of the metal oxycarbonitride in the layer (I) to platinum in the layer (II) (metal oxycarbonitride/platinum) is 2 to 500. It is preferable that the mass per unit area of platinum in the layer (II) is 0.005 to 0.2 mg/cm2.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: February 14, 2017
    Assignee: SHOWA DENKO K.K.
    Inventors: Yasuaki Wakizaka, Ryuji Monden, Takuya Imai, Hiroshi Nakajima
  • Publication number: 20160293970
    Abstract: A redox flow battery includes: first carbon nanotubes having an average diameter of 100 nm or r core, and second carbon nanotubes having an average diameter of 30 nm or less, in which the second carbon nanotubes are adhered to surfaces of the first carbon nanotubes such that the second carbon nanotubes bridge between the plural first carbon nanotubes. Since the redox flow battery includes an electrode material and an electrode including the electrode material, the electromotive force and the charging capacity are high.
    Type: Application
    Filed: November 11, 2014
    Publication date: October 6, 2016
    Applicant: SHOWA DENKO K.K.
    Inventors: Kenzo HANAWA, Ryuji MONDEN, Takenori NISHIKATA
  • Publication number: 20160276675
    Abstract: Electrocatalyst layers include an electrocatalyst having high oxygen reduction activity that is useful as an alternative material to platinum catalysts. Uses of the electrocatalyst layers are also disclosed. The electrocatalyst layer includes an electrocatalyst that is formed of a metal oxide obtained by thermally decomposing a metal organic compound. The metal element forming the electrocatalyst is preferably one selected from the group consisting of niobium, titanium, tantalum and zirconium.
    Type: Application
    Filed: May 31, 2016
    Publication date: September 22, 2016
    Applicant: SHOWA DENKO K.K.
    Inventors: Tadatoshi KUROZUMI, Toshikazu SHISHIKURA, Ryuji MONDEN