In an inkjet head, 4n rows (n: a natural number) parallel to each other are formed in each of which nozzles are arranged on an ink ejection face of the inkjet head in one direction. All the nozzles constituting each row are arranged such that projection points of the nozzles obtained by projecting the nozzles on an imaginary straight line extending parallel to each row, from a direction parallel to a plane including the rows, and perpendicular to each row, are arranged on the imaginary straight ...

Directional light beam generators are implemented in waveguides with tilted core structures. The waveguides have cores, cladding and jacket layers. A directional light beam with small divergent beam angle is generated after propagating through the waveguides. Divergent light beams with large beam sizes can be converted into beams with small sizes.

An actuator unit for a laminated ink jet recording head includes: a first cover member for forming a vibrating member having piezoelectric vibrators on a surface thereof; a spacer for forming pressure generating chambers with a surface thereof sealed by the first cover member; a second cover member having ink jetting outlets and ink flowing inlets, each ink jetting outlet causing the corresponding pressure generating chamber to communicate with a corresponding nozzle opening of a flow path unit ...

An animal trap includes a transparent lampshade-shaped cup slidably held on a vertical supporting pipe standing on a base plate, which cup is normally hanged on an upper portion of the supporting pipe by a biasing lever pivotally secured on a pair of fixed levers as locked by a horizontal bar secured with a bait rope having a bait mounted on a lower end of the rope, whereby upon a taking of the bait by an animal, the horizontal bar as clamped between the fixed levers and the biasing lever will b...

A recess is formed in a surface confronting an actuator unit of an ink supply inlet forming substrate. When a flow path unit and the actuator unit are bonded together using a fusible film, thermally expanded air is released into the recess to thereby reduce pressure. Further, by arranging the recess at a position confronting a pressure generating chamber, an air layer formed by the recess is allowed to function as a vibration shielding member.

A system extracts a set of size invariant, rotation invariant features from pixel data of a character and sends the set of features to a statistical decision tree to effectuate automatic recognition of a character. The set of extracted features includes a group of features that is extracted by dividing a circle bounding the character into eight rings and 24 slices and counting the number of character pixels contained in each ring and in each slice. Various Fourier transforms, autocorrelations, m...

Apparatus for the continuous wet treatment of a textile web is disclosed, wherein the web is guided along a zig-zag path through a bath which is formed by treatment liquid flowing in counter current to the direction of movement of the textile web. The bath is contained in a channel shaped vessel, and a plurality of perforated deflecting rollers are positioned within the vessel and form between them a zig-zag-like path for guiding the textile web through the vessel and thus through the bath in me...

A liquid ejecting head includes a passage unit, having a nozzle opening, a pressure generating chamber communicating with the nozzle opening, and a reservoir holding a liquid to be supplying to the pressure generating chamber, a head case on which the passage unit is attached, a pressure generating element for applying variance of pressure to the pressure generating chambers, accommodated in a space defined in the head case, and a head substrate closing an opening of the space of the head case. ...

The rotating electric machine has a stator coil wound around a stator, a magnetic pole and a signal rotor fixed to a rotor, and a detection stator, disposed opposite to the signal rotor, for detecting the rotational position of the rotor, characterized by further comprising an adjuster for adjusting the position of the signal rotor or the detection stator by supplying a direct current to a predetermined phase of the stator coil and then a direct current to a different phase from the predetermine...

A semiconductor device has P-type semiconductor body, a plurality of N-type wells formed in a surface area of the semiconductor body, and potential setting member for setting the potentials of the wells. This member has an N.sup.+ -type layer formed in the semiconductor body in contact with bottom surfaces of the wells, and an electrode formed on one of the wells.