Abstract: A flying device includes a plurality of rotary vanes, a motor element serving as a driving source for each of the plurality of rotary vanes, the motor element driving and rotating a main shaft of the rotary vanes, and a drive circuit. The motor element includes a stator, a rotor, and a pair of bearings. The stator includes a stator core having an annular yoke and a plurality of teeth projecting inward from the annular yoke, and stator windings wound respectively around the plurality of teeth of the stator core. The rotor includes a permanent magnet of a cylindrical shape located inside the stator core via a gap, the permanent magnet being positioned counter to the plurality of teeth, a rotor yoke in contact with a cylindrical inner wall surface of the permanent magnet, and a shaft pivotally supported at an axis of the rotor yoke, the shaft being connected to the main shaft.

Abstract: A flying device includes a plurality of rotary vanes, a motor element serving as a driving source for each of the plurality of rotary vanes, the motor element driving and rotating a main shaft of the rotary vanes, and a drive circuit. The motor element includes a stator, a rotor, and a pair of bearings. The stator includes a stator core having an annular yoke and a plurality of teeth projecting inward from the annular yoke, and stator windings wound respectively around the plurality of teeth of the stator core. The rotor includes a permanent magnet of a cylindrical shape located inside the stator core via a gap, the permanent magnet being positioned counter to the plurality of teeth, a rotor yoke in contact with a cylindrical inner wall surface of the permanent magnet, and a shaft pivotally supported at an axis of the rotor yoke, the shaft being connected to the main shaft.

Abstract: There are provided an inexpensive imaging device that may perform data transmission promptly and easily, and a transmission/reception system using the imaging device. The imaging device includes, an imaging section, a recording section storing data of images shot by the imaging section, a transmission section transmitting the data stored in the recording section to the outside by radio, and a controller controlling the transmission section to start data transmission after the imaging section finishes image-shooting.

Abstract: There are provided an inexpensive imaging device that may perform data transmission promptly and easily, and a transmission/reception system using the imaging device. The imaging device includes, an imaging section, a recording section storing data of images shot by the imaging section, a transmission section transmitting the data stored in the recording section to the outside by radio, and a controller controlling the transmission section to start data transmission after the imaging section finishes image-shooting.

Abstract: A signal processing circuit in a digital portable telephone apparatus having a GPS function has a phase shifter for making an I signal and a Q signal obtained by demodulating a BPSK modulated signal coincide with each other in phase and an adder for combining both the signals (I and Q signals) after the phase coincidence with each other. Therefore, a receiving IF stage normally used in a portable telephone apparatus is used also as an IF stage for a GPS receiving system.

Abstract: The invention provides an agent for conferring resistance comprising a lectin as an effective component, which are able to confer resistance against external stimuli to animal cells, particularly mammalian cells, and to their cultured cells and various tissues in the living bodies. The agent for conferring resistance to external stimulus according to the invention can confer to such animal cells and/or tissues resistance against mechanical stimuli and/or proteolytic reactions, and thereby enhance graft fixation of the cells and/or tissues, as well as transplant tissues obtained by culturing them.

Abstract: This invention provides a novel method of culturing mesenchymal stem cells whereby a remarkably larger number of mesenchymal stem cells can be obtained compared with the conventional culture methods. This culture method is characterized by adding to a medium a fibroblast growth factor (FGF) as a substance which stimulates the proliferation potency of the mesenchymal stem cells while retaining the pluripotency thereof and prolongs the life. According to the method, mesenchymal stem cells can be cultured at least over 30 generations and, moreover, about 105 to 106 times as much as cell count in the conventional culture methods can be obtained.

Abstract: A signal processing circuit in a digital portable telephone apparatus having a GPS function has a phase shifter for making an I signal and a Q signal obtained by demodulating a BPSK modulated signal coincide with each other in phase and an adder for combining both the signals (I and Q signals) after the phase coincidence with each other. Therefore, a receiving IF stage normally used in a portable telephone apparatus is used also as an IF stage for a GPS receiving system.

Abstract: An integrated oscillation circuit used for frequency conversion circuit in which UHF frequency conversion and VHF frequency conversion are selectively energized to use a common IF amplifier. The integrated oscillation circuit is used for a local oscillation circuit. The integrated oscillation circuit including a connection terminal connected to an external resonance circuit and an input line of a mode switching signal which is set at a different level in response to an operation mode, an oscillation element, a bias terminal of which is connected to the connection terminal, a detection circuit detecting the level of the mode switching signal applied to the bias terminal of the oscillation element, and a switching circuit turning on and off a power source for driving the oscillation element in response to the level detected at the detection circuit.

Abstract: An integrated oscillation circuit used for frequency conversion circuit in which UHF frequency conversion and VHF frequency conversion are selectively energized to use a common IF amplifier. The integrated oscillation circuit is used for a local oscillation circuit. The integrated oscillation circuit including a connection terminal connected to an external resonance circuit and an input line of a mode switching signal which is set at a different level in response to an operation mode, an oscillation element, a bias terminal of which is connected to the connection terminal, a detection circuit detecting the level of the mode switching signal applied to the bias terminal of the oscillation element, and a switching circuit turning on and off a power source for driving the oscillation element in response to the level detected at the detection circuit.