Abstract: An injector for injecting a fertilized ovum(ova) or a sperm(s) for artificial insemination into a uterine body, by which an injection pipe can be introduced smoothly into a uterus, is disclosed. An injector for a fertilized ovum(ova) or a sperm(s) of the invention is characterized in that it comprises a guide pipe for insertion into a uterine body, an injection pipe which is inserted into the guide pipe and has a length longer than the guide pipe, and a nozzle connected to a frontal end of the injection pipe, wherein the injection pipe comprises a flexible 1st pipe section constituting a frontal side of the injection pipe, and a 2nd pipe section being more rigid than the 1st pipe section and constituting a rear side of the injection pipe.

Abstract: An injector for injecting a fertilized ovum(ova) or a sperm(s) for artificial insemination into a uterine body, by which an injection pipe can be introduced smoothly into a uterus, is disclosed. An injector for a fertilized ovum(ova) or a sperm(s) of the invention is characterized in that it comprises a guide pipe for insertion into a uterine body, an injection pipe which is inserted into the guide pipe and has a length longer than the guide pipe, and a nozzle connected to a frontal end of the injection pipe, wherein the injection pipe comprises a flexible 1st pipe section constituting a frontal side of the injection pipe, and a 2nd pipe section being more rigid than the 1st pipe section and constituting a rear side of the injection pipe.

Abstract: A semiconductor device includes a semiconductor element having a plurality of element electrodes and a ball electrode electrically connected to at least one element electrode out of the plurality of element electrodes. The ball electrode is made of a Sn—Zn-based lead-free solder including 7 through 9.5 wt % of zinc and the remaining of tin.

Abstract: A semiconductor device includes a semiconductor element having a plurality of element electrodes and a ball electrode electrically connected to at least one element electrode out of the plurality of element electrodes. The ball electrode is made of a Sn—Zn-based lead-free solder including 7 through 9.5 wt % of zinc and the remaining of tin.

Abstract: The present invention is directed to a motor rotation speed controlling apparatus including a comparator, a detecting circuit for detecting a feedback signal of a motor, a motor driving transistor, and a circuit for changing the level of a constant voltage fed to the comparator. The comparator compares a saw-tooth voltage with a constant voltage and outputs a signal which has a duty cycle corresponding to the result of the comparison. The motor driving transistor drives the motor in response to the output signal from the comparator. To change the duty cycle of the output signal from the comparator, a circuit is used that changes the level of the constant voltage in response to a feedback signal detected by the detecting circuit.

Abstract: A slide switch comprising a box-shaped housing base member, a switching contact mechanism housed within the base member, an electrically insulating flexible film member having an external configuration permitting it to be housed within the base member, a striker mounted on the film member, and a cover member mounted on the base member.