Abstract: An impact tool includes: a spindle disposed in a housing; an anvil disposed in front of the spindle and rotatably supported by the housing through a metal bearing, a rear surface of the anvil having a bearing hole in which a front end of the spindle is received; an impact mechanism configured to transmit a rotation of the spindle to the anvil; an outer groove formed on an outer periphery of the anvil and opposed to the metal bearing; and a connecting opening radially extending in the anvil and connecting the bearing hole and the outer groove to provide a communication therebetween. The outer groove is formed to have a depth in the range of 3-10% of an outer diameter of the anvil, and the connecting opening opens at a rear end of the outer groove in an axial direction of the anvil.

Abstract: An electric wheeled apparatus comprises a main body, a drive wheel supported by the main body in a rotatable manner, an electric motor configured to apply torque to the drive wheel, a battery holder configured to removably receive a plurality of battery packs, and a circuit unit configured to electrically connect one or more battery packs attached to the battery holder to the motor regardless of a number of battery packs attached to the battery holder.

Abstract: The cover is provided with engaging pieces that engage with a recessed groove provided on the outer peripheral surface of a hammer case and hold the cover on the hammer case to prevent the cover from being detached. The cover is also provided with bumper receiving portions extending from the front end of the cover and allowing the bumper to be externally attached to the cover, and engaging claws formed on the bumper receiving portions and engaging with engaged recessed portions formed on the inner peripheral surface of the bumper for holding the bumper to prevent the bumper from being detached from the cover. The cover with the bumper attached to the bumper receiving portions is provided to the hammer case.

Abstract: Three battery cells can be arranged such that one battery cell is situated on the front side of a handle portion and that the remaining two battery cells are situated on the rear side thereof while being arranged laterally side by side. Also, a handle portion can be generally of a triangular cross-sectional configuration whose apex portion is situated on the front side of the handle portion and whose base portion is situated on the rear side thereof; and the handle portion is grasped by bringing fingertips into contact with the apex portion (11a) on the front side.

Abstract: An impact tool includes: a spindle disposed in a housing; an anvil disposed in front of the spindle and rotatably supported by the housing through a metal bearing, a rear surface of the anvil having a bearing hole in which a front end of the spindle is received; an impact mechanism configured to transmit a rotation of the spindle to the anvil; an outer groove formed on an outer periphery of the anvil and opposed to the metal bearing; and a connecting opening radially extending in the anvil and connecting the bearing hole and the outer groove to provide a communication therebetween. The outer groove is formed to have a depth in the range of 3-10% of an outer diameter of the anvil, and the connecting opening opens at a rear end of the outer groove in an axial direction of the anvil.

Abstract: A nucleic acid and a protein increasing expression levels under salt stress provide a nucleic acid with a nucleic acid sequence of SEQ. ID. NO. 1 in Sequence Listing, a variant nucleic acid thereof, a protein with an amino acid sequence of SEQ. ID. NO. 2 in Sequence Listing, and a variant protein thereof. Each of the nucleic acids and the proteins increases an expression level under salt stress. The nucleic acid and the protein are capable of providing a novel protein with a function to impart salt stress tolerance to a plant, and providing a novel gene encoding the novel protein.

Abstract: A sheath as a lacrimal passage treatment instrument is provided. The sheath is composed of a flexible tube that is bendable and self-standable and has an outside diameter insertable into a lacrimal passage, and has both ends opened. One of the ends of the sheath has a decreasing wall thickness to form a taper, and slits are formed opposite to each other at the end.

Abstract: A nucleic acid and a protein increasing expression levels under salt stress provide a nucleic acid with a nucleic acid sequence of SEQ. ID. NO. 1 in Sequence Listing, a variant nucleic acid thereof, a protein with an amino acid sequence of SEQ. ID. NO. 2 in Sequence Listing, and a variant protein thereof. Each of the nucleic acids and the proteins increases an expression level under salt stress. The nucleic acid and the protein are capable of providing a novel protein with a function to impart salt stress tolerance to a plant, and providing a novel gene encoding the novel protein.

Abstract: A nucleic acid and a protein increasing expression levels under salt stress provide a nucleic acid with a nucleic acid sequence of SEQ. ID. NO. 1 in Sequence Listing, a variant nucleic acid thereof, a protein with an amino acid sequence of SEQ. ID. NO. 2 in Sequence Listing, and a variant protein thereof. Each of the nucleic acids and the proteins increases an expression level under salt stress. The nucleic acid and the protein are capable of providing a novel protein with a function to impart salt stress tolerance to a plant, and providing a novel gene encoding the novel protein.

Abstract: An impact driver (1) includes a main housing (2) encasing a motor (5); an internal gear case (8) which is secured by screws to the main housing (2) and is provided with an externally threaded portion (12); and a hammer case (13) with an internally threaded portion (14) which is adapted for threadable engagement with the externally threaded portion (12) of the internal gear case (8) so as to couple the hammer case (13) to the internal gear case (8). The impact driver (1) additionally includes a rotation stop mechanism comprised of a rack (24) disposed within a forward extending portion (23) of the main housing (2) for meshing with dimples (27) formed in the outer surface of the hammer case (13). By fixing the rack (24) with a feed screw (26) disposed transversely in the forward extending portion (23), the hammer case (13) is prevented from rotation with respect to the internal gear case (8) after assembly of the impact driver (1).

Abstract: A nucleic acid and a protein increasing expression levels under salt stress provide a nucleic acid with a nucleic acid sequence of SEQ. ID. NO. 1 in Sequence Listing, a variant nucleic acid thereof, a protein with an amino acid sequence of SEQ. ID. NO. 2 in Sequence Listing, and a variant protein thereof. Each of the nucleic acids and the proteins increases an expression level under salt stress. The nucleic acid and the protein are capable of providing a novel protein with a function to impart salt stress tolerance to a plant, and providing a novel gene encoding the novel protein.

Abstract: An impact driver (1) includes a main housing (2) encasing a motor (5); an internal gear case (8) which is secured by screws to the main housing (2) and is provided with an externally threaded portion (12); and a hammer case (13) with an internally threaded portion (14) which is adapted for threadable engagement with the externally threaded portion (12) of the internal gear case (8) so as to couple the hammer case (13) to the internal gear case (8). The impact driver (1) additionally includes a rotation stop mechanism comprised of a rack (24) disposed within a forward extending portion (23) of the main housing (2) for meshing with dimples (27) formed in the outer surface of the hammer case (13). By fixing the rack (24) with a feed screw (26) disposed transversely in the forward extending portion (23), the hammer case (13) is prevented from rotation with respect to the internal gear case (8) after assembly of the impact driver (1).

Abstract: A battery-charging system is provided that does not require removal of batteries from an impact screwdriver (1) for recharging. The battery-charging system includes the impact screwdriver and a charger (20). The impact screwdriver (1) has a nose (3a) to which a tool bit is attached. The impact screwdriver additionally includes a grip handle (4) containing a battery unit (5) whose terminals (10) for recharging are exposed in a surface of a protrusion (7) of the grip handle. The charger (20) includes a charger circuit encased in an enclosure having a base (21) covered with a housing (22). The housing of the charger is provided with a first receiving recess (29) which can receive the nose (3a) of the screwdriver and a second receiving recess (30) which can receive the protrusion (7) of the screwdriver. The system additionally includes a pair of charge terminals of the charger circuit that resiliently projects into the second receiving recess (30).

Abstract: A multi-layered film preparation is disclosed having a drug-containing layer which contains at least one water-soluble high molecular weight compound as a main base material, a layer which is made difficult to dissolve in water and positioned at one side of the drug-containing layer and a powdery adhesive compound positioned at the other side of the drug-containing layer.

Abstract: A recombinant protein capable of constituting a recombinant L-methionine .gamma.-lyase or a variant thereof, a recombinant oligomeric enzyme, preferably tetrameric enzyme, consisting of the recombinant protein, a DNA molecule encoding the same, an expression vector containing the DNA molecule, a host cell harboring the expression vector, a method of preparing the recombinant L-methionine .gamma.-lyase, and anti-tumor agent comprising the recombinant L-methionine .gamma.-lyase or a variant thereof are provided.