Provided is an aqueous ink composition for writing instruments, which enables desired colorfulness to be obtained easily. The aqueous ink composition for writing instruments according to the present invention contains: pigmented microspheres each having a matrix comprising water and a polymer, and a water-insoluble dye; and unpigmented microspheres.

A material deposition system and method is disclosed for depositing material onto raised features on a surface of a substrate. The material deposition system and method are a contact deposition or printing system and method, which employs biased rollerball to deposit the material as it travels along the substrate and over the raised features.

A material deposition system and method is disclosed for depositing material onto raised features on a surface of a substrate. The material deposition system and method are a contact deposition or printing system and method, which employs biased rollerball to deposit the material as it travels along the substrate and over the raised features.

The description relates to devices. One example device can involve a mesh structure with a density profile varying from a first end of the mesh structure to a second end of the mesh structure.

A writing implement comprises first to n-th members (n is a natural number), an inner tube and a device of mechanism for projecting or retracting a writing tip connected to the first member, and the first to n-th members are stacked around the inner tube. Each of the first to n-th members is able to transmit rotational motion to the adjacent member. With such a structure, design quality can be improved. Also, it can provide a writing implement which attracts people even when they are not writing.

An input system having at least one sensor board, at least one recording medium and at least one input device/stylus. The at least one sensor board is divided into at least two virtual sub-boards or the at least one sensor board is in the form of two separate sensor boards. The two sensor boards have, on at least one side edge, a structure for mutual fixing. A multi-page recording medium is arranged over the at least one sensor board. The at least one input device/stylus has an analogue application function. The at least one input device/stylus has a digital input function/signal function for sensor boards.

An input system having at least one sensor board, at least one recording medium and at least one input device/stylus. The at least one sensor board is divided into at least two virtual sub-boards or the at least one sensor board is in the form of two separate sensor boards. The two sensor boards have, on at least one side edge, a structure for mutual fixing. A multi-page recording medium is arranged over the at least one sensor board. The at least one input device/stylus has an analogue application function. The at least one input device/stylus has a digital input function/signal function for sensor boards.

An oil-based ballpoint pen includes: a ballpoint pen tip at a tip part of an ink storage cylinder, and an oil-based ballpoint pen ink composition stored in the ink storage cylinder, the oil-based ballpoint pen ink composition containing a colorant, an organic solvent having a boiling point of 140? C. or lower, and a resin, wherein the oil-based ballpoint pen ink composition has an ink viscosity of 300 mPa.Math.s or less at 20? C. and a shear rate of 200 sec.sup.?1, an ink consumption of the oil-based ballpoint pen per a writing distance of 100 m is 80 mg or more, and a ratio of a ball diameter B (mm) to an ink consumption A (mg) per a writing distance of 100 m satisfies 100<A/B<600.

An oil-based ballpoint pen includes: a ballpoint pen tip at a tip part of an ink storage cylinder, and an oil-based ballpoint pen ink composition stored in the ink storage cylinder, the oil-based ballpoint pen ink composition containing a colorant, an organic solvent having a boiling point of 140? C. or lower, and a resin, wherein the oil-based ballpoint pen ink composition has an ink viscosity of 300 mPa.Math.s or less at 20? C. and a shear rate of 200 sec.sup.?1, an ink consumption of the oil-based ballpoint pen per a writing distance of 100 m is 80 mg or more, and a ratio of a ball diameter B (mm) to an ink consumption A (mg) per a writing distance of 100 m satisfies 100<A/B<600.

A writing system includes a silicone finger pen covering including a first end portion and a second end portion. The first end portion includes a magnet and the second end portion includes an opening configured to receive an index finger of an end user. An interchangeable pen tip includes a first section and a second section. The first section is configured to contact a writing surface and the second section includes a metal surface configured to magnetically secure to the magnet. A pen tips casing includes a lid portion and a bottom portion. The bottom portion includes a plurality of slots configured to receive a plurality of interchangeable pen tips. The silicone finger pen covering can be an electronic silicone finger pen covering and a non-electronic silicone finger pen covering. The electronic silicone finger pen covering further includes a battery, a processor, and a button.