Abstract: Provided is an electrical storage device that is compact and can be manufactured easily, while allowing for use of higher voltages. In an electrical storage device, a winding structure comprises: a central electrode body in which a first extending part and a second extending part extending from either side of a central portion are wound around the central portion in the same direction; a first electrode body electrically connected to a first external terminal and extending toward an outer peripheral side from a vicinity of the central portion; a second electrode body electrically connected to a second external terminal and extending toward the outer peripheral side from a vicinity of the central portion; a first separator disposed between the central electrode body and the first electrode body; and a second separator disposed between the central electrode body and the second electrode body.

Abstract: A pressure control device includes: a body having groove-like channel containing a groove part and a widened part; a filter unit having a cylindrical frame formed of an elastic material and including a through hole part penetrating in a direction orthogonal to a central axis and a plate-shaped filter member disposed to cover the through hole part and supported on an inner side of the frame. The filter unit is accommodated in the widened part with a direction of the central axis of the frame being arranged along a depth direction of the widened part; and a separate plate installed to the body to cover the groove-like channel in a state in which the filter unit is accommodated in the widened part. The frame has a length along the central axis greater than a depth of the widened part.

Abstract: A pressure control device includes: a body having a groove-like channel containing a groove part and a widened part; and a filter unit having a cylindrical frame including a through hole part penetrating in a direction orthogonal to a central axis and a plate-shaped filter member disposed to cover the through hole part and supported on an inner side of the frame. The filter unit is accommodated in the widened part with a direction of the central axis of the frame being arranged along a depth direction of the widened part. The frame includes a convex part orthogonal to the penetrating direction of the through hole part and protruding toward an outer side of the frame.

Abstract: To provide a lubricating oil composition for internal combustion engines, which can realize low friction in both internal combustion engines equipped with a DLC and internal combustion engines not equipped with a DLC. [Solution] a lubricating oil composition for internal combustion engines, which is characterized in that the lubricating oil composition for internal combustion engines is a composition obtained by blending a molybdenum dithiocarbamate (MoDTC) and a polyalkylene glycol (PAG) in a base oil, the weight average molecular weight of the polyalkylene glycol is 2750-4500 and the content of the polyalkylene glycol is not less than 0.05 mass % and less than 10 mass % relative to the total mass of the composition.

Abstract: The present invention provides a low-friction sliding mechanism comprising a lubricant composition on a sliding plane between a DLC-coated sliding member (A) and a sliding member (B), wherein the DLC-coated sliding member (A) is formed by coating a base material with diamond-like-carbon containing 10 atom % or less of hydrogen, the sliding member (B) includes at least one kind of material selected from the group consisting of a metal material, a non-metal material, and a metal or non-metal coated material having a surface coated with a thin film, and the lubricant composition contains a basic oil (C), PAG (D), and an acid oxygen-containing organic compound (E) with an acid number of more than 1 mgKOH/g.

Abstract: A spool switching valve device may include a columnar spool housing and spherical valve bodies. The spool housing includes first input port cavity portions, valve body movable portions and valve seat members. Each valve seat member has a through hole and includes a second input port portion. A second valve seat portion is provided to open and close the gap between valve body movable portion and the second input port portion. Each valve body movable portion includes an output port penetrating the side surface of the spool housing to communicate with the outside of the spool. Each valve seat mounting portion includes an engagement receiving portion suppressing the detachment of the valve seat members when the valve seat member is actually mounted. Each valve seat member includes an engagement portion fitted into the engagement receiving portion when the valve seat member is mounted to the valve seat mounting portion.

Abstract: A spool switching valve device may include a columnar spool housing and spherical valve bodies. The spool housing includes first input port cavity portions, valve body movable portions and valve seat members. Each valve seat member has a through hole and includes a second input port portion. A second valve seat portion is provided to open and close the gap between valve body movable portion and the second input port portion. Each valve body movable portion includes an output port penetrating the side surface of the spool housing to communicate with the outside of the spool. Each valve seat mounting portion includes an engagement receiving portion suppressing the detachment of the valve seat members when the valve seat member is actually mounted. Each valve seat member includes an engagement portion fitted into the engagement receiving portion when the valve seat member is mounted to the valve seat mounting portion.