摘要:
In order to provide a writing instrument in which a writing direction can be visually recognized in a broad range at a visual part of a pen tip and which can surely write to end of writing, the writing instrument is endowed with a constitution in which a pen tip is equipped with a porous member as a writing part and a holding member holding the above porous member and having at least one ink guiding part through which an ink contained in a barrel is provided to a writing part held by the holding member which is a visible part enabling to visually recognize a writing direction, wherein an area ratio of the visible part is 40% or more of the pen tip protruding from a tip part of the writing instrument.
摘要:
In order to provide a thermosensitive decolorable ink composition which can readily be decolored with simple heating by rubbing and the like without using a microcapsule and is not developed again in color even after stored at very low temperature (−50° C. or lower) and which is excellent in stability with passage of time and has a vivid hue intensity, the above thermosensitive decolorable ink composition is provided with a constitution in which it contains as a colorant, color developing particles comprising at least a leuco dye, a developer and a crystalline substance and in which it further contains a decolorant comprising an amorphous resin.
摘要:
In order to provide a writing instrument in which a writing direction can be visually recognized in a broad range at a visual part of a pen tip and which can surely write to end of writing, the writing instrument is endowed with a constitution in which a pen tip is equipped with a porous member as a writing part and a holding member holding the above porous member and having at least one ink guiding part through which an ink contained in a barrel is provided to a writing part held by the holding member which is a visible part enabling to visually recognize a writing direction, wherein an area ratio of the visible part is 40% or more of the pen tip protruding from a tip part of the writing instrument.
摘要:
In order to provide a thermosensitive decolorable ink composition which can readily be decolored with simple heating by rubbing and the like without using a microcapsule and is not developed again in color even after stored at very low temperature (−50° C. or lower) and which is excellent in stability with passage of time and has a vivid hue intensity, the above thermosensitive decolorable ink composition is provided with a constitution in which it contains as a colorant, color developing particles comprising at least a leuco dye, a developer and a crystalline substance and in which it further contains a decolorant comprising an amorphous resin.
摘要:
Disclosed herein is a light-emitting device including a plurality of first light-emitting elements mounted in a matrix form on a common wiring board. Each of the first light-emitting elements has a single crystal semiconductor multilayer structure and is a semiconductor element in the form of a chip that emits light in a given band of wavelengths. When attention is focused on the plurality of first light-emitting elements that belong in a given area of all the plurality of first light-emitting elements, the orientations of the common crystal axes of the first light-emitting elements adjacent to each other at least in one of the row and column directions differ.
摘要:
A GaN based semiconductor light-emitting device is provided. The light-emitting device includes a first GaN based compound semiconductor layer of an n-conductivity type; an active layer; a second GaN based compound semiconductor layer; an underlying layer composed of a GaN based compound semiconductor, the underlying layer being disposed between the first GaN based compound semiconductor layer and the active layer; and a superlattice layer composed of a GaN based compound semiconductor doped with a p-type dopant, the superlattice layer being disposed between the active layer and the second GaN based compound semiconductor layer.
摘要:
According to one embodiment, an image forming apparatus includes: a first paper feeding unit; a second paper feeding unit; a fixing unit configured to fix a developer image transferred onto a sheet; a conveying path configured to convey sheets; a receiving unit configured to receive an execution instruction for duplex printing for continuously printing an image on one surface and on the other surface of a sheet; an acquiring unit configured to acquire, in the printing on one surface, information concerning presence or absence of an image on the other surface; and a processor configured to change, in the printing on one surface, if a result of the acquisition concerning the sheet fed from the first paper feeding unit indicates that an image is present, a paper feeding unit from the first paper feeding unit to the second paper feeding unit and performs control for re-executing the duplex printing.
摘要:
An n-type GaN layer is grown onto a sapphire substrate and a hexagonal etching mask is formed onto the n-type GaN layer as provided. The n-type GaN layer is etched to a predetermined depth by using the etching mask by the RIE method. A hexagonal prism portion whose upper surface is a C plane is formed. After the etching mask was removed, an active layer and a p-type GaN layer are sequentially grown onto the whole surface of the substrate so as to cover the hexagonal prism portion, thereby forming a light emitting device structure. After that, a p-side electrode is formed onto the p-type GaN layer of the hexagonal prism portion and an n-side electrode is formed onto the n-type GaN layer.
摘要:
Methods of crystal growth for semiconductor materials, such as nitride semiconductors, and methods of manufacturing semiconductor devices are provided. The method of crystal growth includes forming a number of island crystal regions during a first crystal growth phase and continuing growth of the island crystal regions during a second crystal growth phase while bonding of boundaries of the island crystal regions occurs. The second crystal growth phase can include a crystal growth rate that is higher than the crystal growth rate of the first crystal growth phase and/or a temperature that is lower than the first crystal growth phase. This can reduce the density of dislocations, thereby improving the performance and service life of a semiconductor device which is formed on a nitride semiconductor made in accordance with an embodiment of the present invention.
摘要:
An image forming apparatus includes a pattern formation unit which forms a first gradation screen pattern on an image carrier unit at a non-image formation operation, a gradation characteristic determination unit which determines a gradation characteristic from the first gradation pattern formed by the pattern formation unit, a first gradation correction characteristic determination unit which determines a first gradation correction characteristic from the gradation characteristic determined by the gradation characteristic determination unit, a characteristic detection unit which detects a change characteristic in the image forming apparatus just before image formation, a pattern correlation characteristic correction unit which determines a pattern correlation characteristic corresponding to the change characteristic detected by the characteristic detection unit and a second gradation correction characteristic determination unit which determines a second gradation correction characteristic by performing an arithmetic operation on the first gradation correction characteristic and the pattern correlation characteristic.