摘要:
A process for producing 4,6-bisphenylazoresorcinol of formula �2! wherein R represents halogen atom, C.sub.1-5 alkyl group, hydroxycarbonyl or C.sub.1-5 alkoxy group, n represents 0 or an integer of 1 to 5, and two or more Rs are the same or different from each other, which comprises reacting resorcinol with a benzenediazonium salt of formula �1! wherein R and n are the same as defined in the above formula �1!, and X represents Cl, Br, OSO.sub.3 H or OPO.sub.3 H.sub.2, in an alkaline solvent, characterized in that (a) a solution of the compound of the formula �1! is mixed with a solution or suspension of an alkali metal or alkaline earth metal hydroxide to obtain an alkaline mixture, and this alkaline mixture is mixed to be reacted with a solution or suspension containing resorcinol and/or its alkali metal salt or alkaline earth metal salt, or (b) a solution of the compound of formula �1! is mixed to be reacted with a solution or suspension of a mixture of resorcinol with its alkali metal hydroxide or alkaline earth metal hydroxide 15 to 40 times by mol as much as the resorcinol. By the above-described method, the reaction volume can be reduced as compared with the conventional processes, and 4,6-bisphenylazoresorcinol can be obtained in high yield.
摘要:
A tetrakisazo compound represented by the following formula (1) in the free acid form: ##STR1## wherein Q.sub.1 and Q.sub.2 independently represent phenylene or naphthylene group which may be optionally substituted, R.sub.4, R.sub.5 and R.sub.6 independently represent a hydrogen atom, a halogen atom, a hydroxy group, a sulfonic acid group or an amino, alkyl, alkoxy, carbamoyl or sulfamoyl group which may be optionally substituted, m is 0 or 1 and n is 1 or 2, and an ink which comprises the tetrakisazo compound. The ink exhibit excellent properties for ink jet printing.
摘要:
The invention provides a latanoprost-containing aqueous pharmaceutical composition filled in a filter-equipped container, with the adsorption of latanoprost by the filter being prevented. In the latanoprost-containing aqueous pharmaceutical composition filled in the filter-equipped container, a nonionic surfactant is contained in the composition and the filter is made from at least one material selected from the group consisting of polyether sulfone, polyvinylidene fluoride, polycarbonate, and polytetrafluoroethylene.
摘要:
A printing system provided with a printer and a host computer which transfers image data to the printer includes a data transfer unit configured to transfer the image data as image data of a first data format in the case where a connection between the printer and the host computer is first connection means, and transfer the image data as image data of a second data format in the case where a connection between the printer and the host computer is second connection means, wherein the second connection means has less data communication amount per unit time than the first connection means, and when given image data is transferred, image data of the second data format, corresponding to the given image data, has less data amount than image data of the first data format, corresponding to the given image data.
摘要:
Disclosed are a lubricant composition including a lubricating base oil, fine particles and a calcium sulfonate-based thickener, a speed reduction gear filled with the lubricant composition, and an electric power steering apparatus including the speed reduction gear. The invention reduces operating noise of the speed reduction gear, regardless of the amount of backlash that occurs on combining a small gear and a large gear and without a more complicated structure for the speed reduction gear, by action of the fine particles. Further, separation of oil is prevented, by action of the calcium sulfonate-based thickener of the lubricant composition, so that electric power steering apparatus noise within the inside of a car is reduced at a low cost.
摘要:
A lens barrel having a first moving barrel, second moving barrel, and a third moving barrel. The first moving barrel has first cam grooves configured corresponding to a focusing operation and holds an optical system used in a focusing operation. The second moving barrel has second cam grooves and is provided in relation to the first moving barrel. The third moving barrel has third cam grooves configured corresponding to a zoom operation and can move relative to a fixed barrel. The second cam grooves correct a position of said optical system corresponding to a drive operation of the third cam grooves.
摘要:
The present invention is applied to, for example, a multimedia terminal having a function of navigation equipment and a function of playing back video and switches a display from a map display to a source display also with source switching operators 13P, 13R. In addition, menus of upper and lower hierarchies are simultaneously displayed to accept operations through a touch panel and a remote commander. In addition to a press-operable main rotary operator, a press-operable sub rotary operator is provided on a side surface. Among operations accepted through the main rotary operator, only a specific operation relating to content processing is accepted through the sub rotary operator.
摘要:
This invention provides a method for generating a dither matrix includes: setting an evaluation function for calculating an evaluation value of the dither matrix; providing a dither matrix as an initial state which stores in respective elements each of a plurality of threshold values for deciding presence or absence of dot formation for each pixel according to an input tone value; fixing an element for storing a threshold value in an increasing order from a smaller threshold value while transposing at least one of the plurality of threshold values stored in a part of the elements and a threshold value stored in another part of the elements; and outputting a dither matrix in which elements for storing are fixed with regard to at least part of the plurality of threshold values. The step of fixing an element for storing a threshold value includes: transposing mutually part of the threshold values whose elements for storing have not been fixed, among the plurality of threshold values; calculating an evaluation value of the dither matrix in which the threshold values have been transposed, using the evaluation function; fixing an element for storing a smallest evaluation threshold value among the threshold values whose elements for storing have not been fixed, according to a compliance of the evaluation value to a predetermined criterion; and repeating the steps from the transposing step to the fixing step until elements for storing at least part of the plurality of threshold values are fixed.
摘要:
A plurality of same ink nozzle arrays are provided, and multiple color patches are printed with mutually different dot recording rates respectively using one of the same ink nozzle arrays. Color specification value of the plurality of color patches is measured for each same ink nozzle array. The ink ejection amount error of each same ink nozzle array is determined based on the color specification values of the plurality of color patches for each same ink nozzle array. It is also possible to select among the plurality of color patches a preferable color patch that is closest to a specified reference color patch, and to determine the ink ejection amount error from the dot recording rate of the preferable color patch.
摘要:
A plasma processing apparatus includes a processing chamber for accommodating therein an object to be processed, a plurality of bar-shaped magnets rotatably installed standing around the processing chamber, a rotation driving mechanism for synchronously rotating the bar-shaped magnets, a rotation detection unit for detecting a rotation of a bar-shaped magnet and clocking times corresponding to the detected rotation, and an abnormal rotation determination unit for determining whether the rotation driving mechanism is abnormal by comparing an interval calculated from the clocked times to a time period.