Abstract: A method of producing a mold having an uneven structure and a mold for an optical element are provided. The method includes forming on a nickel substrate a mixed film using nickel and a material which phase separates from nickel simultaneously, the mixed film including a plurality of cylinders including nickel as a component thereof and a matrix region including the material which phase separates from nickel as a component thereof and surrounding the plurality of cylinders; and removing the matrix portion from the mixed film by etching to give a mold including nickel or a nickel alloy. The uneven structure is disposed in plurality on the substrate, and a pitch of the uneven structure is within a range of 30 nm or more and 500 nm or less and a depth of the uneven structure is within a range of 100 nm or more.

Abstract: The present invention provides a new method for producing a structure having a three-dimensional network skeleton. The method includes providing a film including a first material and a second material and removing the second material contained in the film by dry etching. The first material contains a noble metal and is dispersed in the second material.

Abstract: To provide a filmy structure of a nanometer size having a phase-separated structure effective for the case where a compound can be formed between two kinds of materials. A structure constituted by a first member containing a compound between an element A except both Si and Ge and SinGe1-n (where 0?n?1) and a second member containing one of the element A and SinGe1-n (where 0?n?1), in which one of the first member and the second member is a columnar member, formed on a substrate, whose side face is surrounded by the other member, the ratio Dl/Ds of an average diameter Dl in the major axis direction to an average diameter Ds in the minor axis direction of a transverse sectional shape of the columnar member is less than 5, and the element A is one of Li, Na, Mg, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Rb, Sr, Y, Zr, Nb, Mo, Ru, Rh, Pd, Cs, Ba, La, Hf, Ta, W, Re, Os, Ir, Pt, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and B.

Abstract: In order that the volume of a liquid drop can increase and the drop can reach with high precision even if the distance between a head nozzle and a plotted base is short, there is provided a driving method for a liquid discharge head including: a discharge port for discharging liquid; a pressure-applying portion communicating with the discharge port, for applying a pressure for discharge to the liquid; and a pressure generating device for generating the pressure, the method including a step of applying a first discharge pulse for discharging liquid and a second discharge pulse for discharging liquid to the pressure generating device in a sequential manner in response to an instruction of one-dot discharge, in which the pulse width of the first discharge pulse, the pulse width of the second discharge pulse, and a rest time between the first discharge pulse and the second discharge pulse are determined so that a first liquid discharged in response to the first discharge pulse has a volume equal to or greater tha

Abstract: In order that the volume of a liquid drop can increase and the drop can reach with high precision even if the distance between a head nozzle and a plotted base is short, there is provided a driving method for a liquid discharge head including: a discharge port for discharging liquid; a pressure-applying portion communicating with the discharge port, for applying a pressure for discharge to the liquid; and a pressure generating device for generating the pressure, the method including a step of applying a first discharge pulse for discharging liquid and a second discharge pulse for discharging liquid to the pressure generating device in a sequential manner in response to an instruction of one-dot discharge, in which the pulse width of the first discharge pulse, the pulse width of the second discharge pulse, and a rest time between the first discharge pulse and the second discharge pulse are determined so that a first liquid discharged in response to the first discharge pulse has a volume equal to or greater tha

Abstract: A driving method for a liquid discharge head having a discharge port for discharging liquid; a pressure-applying portion communicating with the discharge port, for applying discharge pressure to the liquid; and a pressure generating device for generating the pressure. The method includes a step of applying first and second discharge pulses for discharging liquid, to the pressure generating device in a sequential manner in response to a one-dot discharge instruction. The pulse widths of the first and second discharge pulses and a rest time between the first and second discharge pulses are determined so that the volume of a first liquid discharged in response to the first discharge pulse is equal to or greater than that of a second liquid discharged in response to the second discharge pulse and the discharge speed of the first liquid is lower than the discharge speed of the second liquid.

Abstract: In order that the volume of a liquid drop can increase and the drop can reach with high precision even if the distance between a head nozzle and a plotted base is short, there is provided a driving method for a liquid discharge head including: a discharge port for discharging liquid; a pressure-applying portion communicating with the discharge port, for applying a pressure for discharge to the liquid; and a pressure generating device for generating the pressure, the method including a step of applying a first discharge pulse for discharging liquid and a second discharge pulse for discharging liquid to the pressure generating device in a sequential manner in response to an instruction of one-dot discharge, in which the pulse width of the first discharge pulse, the pulse width of the second discharge pulse, and a rest time between the first discharge pulse and the second discharge pulse are determined so that a first liquid discharged in response to the first discharge pulse has a volume equal to or greater tha