摘要:
The present invention relates to a novel anthrapyridone compound represented by the following formula (1) or a salt thereof: [wherein, R1 represents a hydrogen atom, an alkyl group or the like, R2 represents a hydrogen atom or a methoxy group and R3 represents an unsubstituted or substituted C5-C12 alkyl group, an unsubstituted or substituted aryl group, or an unsubstituted or substituted heteroaryl group, respectively; and with regard to the substitution positions of —SO2R3 and —SO3H whose substitution position are not specified and the both of which the benzene ring has thereon, one of their substitution positions is the para-position and the other thereof is the ortho-position to the substitution position of the nitrogen atom by which said benzene ring is substituted], and the compound of the present invention or a salt thereof has a hue which possesses high vividness suitable for inkjet recording, and provides a magenta coloring matter having higher fastnesses on recorded matter and excellent storage stability.
摘要:
The present invention relates to an anthrapyridone compound represented by the following formula (1): (wherein, n represents an integer number of 1 to 3, R1 represents a hydrogen atom, an alkyl group or the like, R2 represents a hydrogen atom or a methoxy group, R3 represents an anilino group having, as a substituent, at least one group selected from the group consisting of sulfo group, a carboxy group, an alkoxy group, a carbamoyl group, an cyano group, an alkyl group, an anilino group, a phenoxy group, an amino group, a hydroxy group and a mercapto group, an unsubstituted anilino group or the like), or a salt thereof, and provides a magenta coloring matter (compound) having high solubility in water and a hue and vividness which are suitable for inkjet recording and being excellent in fastnesses such as light fastness, moisture fastness and ozone gas fastness on recorded matter; and a magenta ink composition containing it.
摘要:
An embroidery 202 is formed by sewing a polarizing fiber onto a suitable cloth 201. The polarizing fiber is composed of a polymer to which a polarization developing material is added and which is stretched after spinning. The embroidery 202 has seams arranged in a predetermined direction. The polarizing fiber exhibits different optical characteristics for a linearly polarized light having an electric field component in the stretched direction of the polymer (the extending direction of the fiber) and for a linearly polarized light having an electric field component perpendicular to that of the above linearly polarized light. Therefore, when a discrimination medium 200 is viewed through a polarization plate, the appearance of the embroidery 202 changes depending on the direction (rotation position) of the polarization plate, so that a discriminating function can be obtained. Even when the discrimination medium 200 is used for an article (for example, a garment), it is difficult to separate the discrimination medium 200 from the article.
摘要:
An embroidery 202 is formed by sewing a polarizing fiber onto a suitable cloth 201. The polarizing fiber is composed of a polymer to which a polarization developing material is added and which is stretched after spinning. The embroidery 202 has seams arranged in a predetermined direction. The polarizing fiber exhibits different optical characteristics for a linearly polarized light having an electric field component in the stretched direction of the polymer (the extending direction of the fiber) and for a linearly polarized light having an electric field component perpendicular to that of the above linearly polarized light. Therefore, when a discrimination medium 200 is viewed through a polarization plate, the appearance of the embroidery 202 changes depending on the direction (rotation position) of the polarization plate, so that a discriminating function can be obtained. Even when the discrimination medium 200 is used for an article (for example, a garment), it is difficult to separate the discrimination medium 200 from the article.
摘要:
An image pickup and display device including a body having an image pickup lens, a display unit capable of displaying an image and having a longitudinal side extending along a longitudinal side of the body in a folded state where the display unit is in close proximity to or abuts against the body, a first rotation shaft having an axis extending along a surface of the body, a rotation-supporting mount rotatably attached to the body through the first rotation shaft, and a second rotation shaft extending perpendicular to the first rotation shaft through the rotation-supporting mount and rotatably supporting the display unit with respect to the rotation-supporting mount. The second rotation shaft extends along a side of the display unit and a side of the body when the display unit is folded. With this, even when the body is in a stable horizontal position, the display unit can be viewed excellently by being rotated around the second rotation shaft.
摘要:
A variable-magnification optical system has, from the object side to the image side, at least a first lens group having a positive optical power, a second lens group having a negative optical power, and a third lens group having a positive optical power. The first lens group includes an optical prism that changes the optical path, and a prescribed conditional formula is fulfilled.
摘要:
A connector is provided having functions for sensing the half-fitted state and improved compactness and workability through a simple construction with few components. The connector includes: a first connector part 2 having a first housing fitted with a contact pin; a second part 21 having a second housing with a contact pin connecting with the aforesaid one; and a rotating ring 15 fitted rotatably to the first or second housing and having locking legs 161 that lock coupling of the two parts. On rotating ring 15, a latching section 181 that inhibits the rotation of the rotating ring and housing where the rotating ring is fitted is provided. Prior to coupling of the two parts, the rotating ring 15 is latched to the housing by the latching sections. During mating-coupling, anti-rotation is terminated by the other part being pushed in, the rotating ring 15 is free to rotate, and coupling of the two parts is locked by the locking legs 161.
摘要:
The present invention provides magenta dyestuff represented by the formula (1): (symbols are as defined in the present description), with hue and vividness suitable to ink-jet recording, excellent fastness to light, gas, water and so on in records and an ink composition using said dyestuff.
摘要:
A plurality of lens units in an optical unit has at least: from the object side toward the image side, a first lens unit having a positive optical power, a second lens unit having a negative optical power, a third lens unit having a positive optical power, and a fourth lens unit having a positive optical power. When at least the first lens unit moves from the image side to the object side in zooming from the wide-angle end position to the telephoto end position, at least one gap between the lens units varies. Predetermined conditional formulae are satisfied.
摘要:
The present invention is a method suitable for heat treatment, or a heat treatment method for growing single crystal silicon carbide by a liquid phase epitaxial method, wherein a monocrystal silicon carbide substrate as a seed crystal and a polycrystal silicon carbide substrate are piled up, placed inside a closed container, and subjected to high-temperature heat treatment, by which very thin metallic silicon melt layer is interposed between the monocrystal silicon carbide substrate and the polycrystal silicon carbide substrate during heat treatment, and single crystal silicon carbide is liquid-phase epitaxially grown on the monocrystal silicon carbide substrate. The closed container is in advance heated to a temperature exceeding approximately 800° C. in an preheating chamber kept at a pressure of approximately 10−5 Pa or lower, the closed container is reduced in pressure to approximately 10−5 Pa or lower, and the container is transported and placed in the heat chamber, which is in advance heated to a prescribed temperature in a range from approximately 1400° C. to 2300° C., in a vacuum at a pressure of approximately 10−2 Pa or lower or in an inert gas atmosphere at a prescribed reduced pressure, by which the monocrystal silicon carbide substrate and the polycrystal silicon carbide substrate are heated in a short time to a prescribed temperature in a range from approximately 1400° C. to 2300° C. to produce single crystal silicon carbide which is free of fine grain boundaries and approximately 1/cm2 or lower in density of micropipe defects on the surface. Further, the present invention is heat treatment equipment used in carrying out the heat treatment method.