公开(公告)号：US20220186136A1

公开(公告)日：2022-06-16

申请号：US17605320

申请日：2020-04-23

Applicant: SHOWA DENKO K.K.

Inventor： Ryuji MONDEN ,  Kunio KONDO

IPC: C10M125/02 ,  C10M101/02 ,  C10M177/00

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.

公开(公告)号：US20220112923A1

公开(公告)日：2022-04-14

申请号：US17450086

申请日：2021-10-06

Applicant: SHOWA DENKO K.K.

Inventor： Ryuji MONDEN ,  Kunio KONDO

IPC: F16D13/52 ,  F16D13/74 ,  F16D13/64

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.

公开(公告)号：US20230033337A1

公开(公告)日：2023-02-02

申请号：US17757384

申请日：2020-04-27

Applicant: SHOWA DENKO K.K.

Inventor： Ryuji MONDEN ,  Kunio KONDO

IPC: C09G1/02 ,  C09K3/14

Abstract: One aspect of the present invention provides a polishing method including polishing a sliding part of a machine device by producing fullerene-aggregated particles by making the sliding part slide while a polishing-agent composition containing fullerenes and a solvent of the fullerenes is applied to the sliding part.

公开(公告)号：US20220220409A1

公开(公告)日：2022-07-14

申请号：US17605282

申请日：2020-04-23

Applicant: SHOWA DENKO K.K.

Inventor： Ryuji MONDEN ,  Kunio KONDO

IPC: C10M125/02 ,  C10M169/04 ,  C10M105/04 ,  C10M109/00 ,  C10M177/00

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.

公开(公告)号：US20220074840A1

公开(公告)日：2022-03-10

申请号：US17526346

申请日：2021-11-15

Applicant: SHOWA DENKO K.K.

Inventor： Ryuji MONDEN ,  Yasuyuki SAKAGUCHI ,  Hitomi KANE ,  Kunio KONDO

IPC: G01N15/02 ,  G01N33/28

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.

公开(公告)号：US20210371769A1

公开(公告)日：2021-12-02

申请号：US16758115

申请日：2018-10-24

Applicant: SHOWA DENKO K.K.

Inventor： Ryuji MONDEN ,  Yu GAO ,  Kunio KONDO ,  Masumi KURITANI

IPC: C10M177/00 ,  C10M169/04 ,  C10M125/02

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.

公开(公告)号：US20200339904A1

公开(公告)日：2020-10-29

申请号：US16758234

申请日：2018-10-24

Applicant: SHOWA DENKO K.K.

Inventor： Ryuji MONDEN ,  Yu GAO ,  Kunio KONDO ,  Masumi KURITANI

IPC: C10M125/02 ,  C10M169/04

Abstract: The lubricating oil composition includes a base oil and a fullerene adduct.

公开(公告)号：US20220228084A1

公开(公告)日：2022-07-21

申请号：US17605309

申请日：2020-04-23

Applicant: SHOWA DENKO K.K.

Inventor： Ryuji MONDEN ,  Kunio KONDO

IPC: C10M177/00 ,  C10M125/02 ,  C10M169/04 ,  C10M105/68 ,  C10M105/04

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.

公开(公告)号：US20210222083A1

公开(公告)日：2021-07-22

申请号：US16769085

申请日：2018-12-04

Applicant: SHOWA DENKO K.K.

Inventor： Ryuji MONDEN ,  Yu GAO ,  Masumi KURITANI ,  Kunio KONDO

IPC: C10M177/00 ,  C10M169/02 ,  C10M113/02 ,  G01N33/28 ,  G01N15/02

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.