Abstract: A piezoelectric element includes a piezoelectric body, an external electrode, and an internal electrode. The internal electrode includes first and second internal conductors opposing each other. The first internal conductor includes first and second conductor portions continuous with each other. The second internal conductor includes a third conductor portion opposing the first conductor portion in a direction where the first and second internal conductors oppose each other, and a fourth conductor portion including a first region connected to the second conductor portion, and a second region continuous with the first region and continuous with the third conductor portion. The piezoelectric body includes a body portion located between the first and the second internal conductors, and formed with a through hole penetrating the body portion in the direction. The fourth conductor portion is located in the through hole and has a thickness increasing toward a center line of the through hole.

Abstract: A pit gate includes a gate body which is inserted between a pool portion storing water and a canal portion connected to the pool portion and is configured to change a flow state of the water, and a seal portion (6) which is accommodated in a groove-shaped accommodation recess formed in the gate body and seals between the pool portion and the gate body. The seal portion (6) includes a low-rigidity portion (10) which is relatively easily deformed by a load according to a water pressure from the pool portion side, and a high-rigidity portion (11) which is provided on the pool portion side of the low-rigidity portion and is not easily deformed relatively by the load.

Abstract: The vibration device includes a piezoelectric element having a connection terminal exposed from a main surface of the piezoelectric element, a first resin layer having conductivity and covering the connection terminal of the piezoelectric element to be electrically connected to the connection terminal, a wiring member overlapping the main surface of the piezoelectric element to cover the first resin layer, including a wire electrically connected to the first resin layer, and extending beyond one end of the piezoelectric element when viewed in a thickness direction of the piezoelectric element, and a second resin layer integrally covering the main surface of the piezoelectric element and the wiring member. The second resin layer includes a first layer in direct contact with the piezoelectric element and the wiring member, and a second layer covering the piezoelectric element and the wiring member via the first layer.

Abstract: A pit gate includes a gate body which is inserted between a pool portion storing water and a canal portion connected to the pool portion and is configured to change a flow state of the water, and a seal portion (6) which is accommodated in a groove-shaped accommodation recess formed in the gate body and seals between the pool portion and the gate body. The seal portion (6) includes a low-rigidity portion (10) which is relatively easily deformed by a load according to a water pressure from the pool portion side, and a high-rigidity portion (11) which is provided on the pool portion side of the low-rigidity portion and is not easily deformed relatively by the load.

Abstract: A rope hoist includes: a rope drum around which a wire rope can be wound; a drum motor for rotating the rope drum; a reduction gear mechanism reducing the rotation of the drum motor and transmitting the rotation to the rope drum; and a control unit controlling driving of the drum motor. The reduction gear mechanism is arranged inside a wall portion provided by being projected from a motor cover of a main body part which is an end frame member supporting the rope drum, a lead wire extended from the drum motor and a cable extended from the control unit are connected via a relay, and the relay is arranged on the outside of the wall portion surrounding the reduction gear mechanism, and housed inside a recess provided on the motor cover.

Abstract: A rope hoist includes: a rope drum around which a wire rope can be wound; a drum motor for rotating the rope drum; a reduction gear mechanism reducing the rotation of the drum motor and transmitting the rotation to the rope drum; and a control unit controlling driving of the drum motor. The reduction gear mechanism is arranged inside a wall portion provided by being projected from a motor cover of a main body part which is an end frame member supporting the rope drum, a lead wire extended from the drum motor and a cable extended from the control unit are connected via a relay, and the relay is arranged on the outside of the wall portion surrounding the reduction gear mechanism, and housed inside a recess provided on the motor cover.

Abstract: Novel uracil derivatives of the formula ##STR1## (wherein R.sub.1, R.sub.2 R.sub.3 and X are defined in the description) and their pharmaceutically acceptable salts, process for preparing the same and pharmaceutical composition containing the same are disclosed. The uracil derivatives have good antitumor activity and, therefore, are useful as antitumor preparation.

Abstract: An anti-tumor preparation containing cells of Streptococcus equisimilis and a process for preparing the preparation which comprises subjecting the cells to heat treatment in a salt solution with or without penicillin treatment.