Abstract: An object of the present invention is to provide a compound or a salt thereof having anti-HBV activity, a pharmaceutical composition, an anti-hepatitis B virus agent, a production inhibitor of DNA of a hepatitis B virus, and a production or secretion inhibitor of a hepatitis B surface antigen. According to the present invention, provided are a compound represented by General Formula [1] or a salt thereof: (in the formula, R1 represents a benzothiazolyl group which may be substituted (in which a carbon atom constituting the 6-membered ring of the benzothiazolyl group of R1 is bonded to the nitrogen atom of the pyridone ring); R2 represents a C2-6 alkenyl group which may be substituted, or the like; and R3 represents a hydrogen atom or the like).

Abstract: An object of the present invention is to provide a compound or a salt thereof having anti-HBV activity, a pharmaceutical composition, an anti-hepatitis B virus agent, a production inhibitor of DNA of a hepatitis B virus, and a production or secretion inhibitor of a hepatitis B surface antigen. According to the present invention, provided are a compound represented by General Formula [1] or a salt thereof: (in the formula, R1 represents a benzothiazolyl group which may be substituted (in which a carbon atom constituting the 6-membered ring of the benzothiazolyl group of R1 is bonded to the nitrogen atom of the pyridone ring); R2 represents a C2-6 alkenyl group which may be substituted, or the like; and R3 represents a hydrogen atom or the like).

Abstract: The object is to provide an Fms-like tyrosine kinase 3 (FLT3) inhibitor useful as a therapeutic agent for acute myeloid leukemia (AML). A novel nitrogen-containing heterocyclic compound represented by the general formula [1] or a salt thereof is provided. The compound or a salt thereof of the present invention can be used as an active ingredient of a pharmaceutical composition for a treatment of a disease or condition relating to FLT3, such as acute myeloid leukemia (AML) and acute promyelocytic leukemia (APL).

Abstract: The object is to provide an Fms-like tyrosine kinase 3 (FLT3) inhibitor useful as a therapeutic agent for acute myeloid leukemia (AML). A novel nitrogen-containing heterocyclic compound represented by the general formula [1] or a salt thereof is provided. The compound or a salt thereof of the present invention can be used as an active ingredient of a pharmaceutical composition for a treatment of a disease or condition relating to FLT3, such as acute myeloid leukemia (AML) and acute promyelocytic leukemia (APL).

Abstract: An eccentric crankshaft is connected to a rotary driving device, and a rocking unit is connected to the eccentric crankshaft. Pin roller rolling gear teeth, each having a trochoid tooth-shape, are provided in the rocking unit. When the rocking unit rocks in accordance with eccentric rotation of the eccentric crankshaft, the trochoid shape of the pin roller rolling gear teeth meshes with pin rollers and thus gives a thrust to the pin rollers, thereby driving footsteps.

Abstract: An eccentric crankshaft (8) is connected to a rotary driving device (6), and a rocking unit (10) is connected to the eccentric crankshaft (8). Pin roller rolling gear teeth (11), each having a trochoid tooth-shape, are provided in the rocking unit (10). When the rocking unit (11) rocks in accordance with eccentric rotation of the eccentric crankshaft (8), the trochoid shape of the pin roller rolling gear teeth (11) meshes with pin rollers (5a) and thus gives a thrust to the pin rollers (5a), thereby driving footsteps (2).

Abstract: A conveyor apparatus 20 according to the present invention comprises a tread guide rail 4 which is provided on a structure 120, and a plurality to treads 2 which moves along the tread guide rail 4. The plurality of treads 2 are connected by a chain 5 having pin rollers 5a. An eccentrically rotatable eccentric crank shaft 8 is connected to a rotation drive unit 6. The eccentric crank shaft 8 is connected to an oscillating body 10 which oscillates in accordance with the eccentric rotation of the eccentric crank shaft 8. The oscillating body 10 is provided with pin roller rolling teeth 11 having a trochoid tooth profile for giving thrust to the pin rollers 5a in accordance with the oscillation of the oscillating body 10.

Abstract: A dual-purpose escalator for a wheelchair including a plurality of steps linked in an endless form and a main-frame having a running path for the steps. The steps include a plurality of specialized steps for loading a wheelchair. The escalator further includes an activating apparatus provided on the running path for causing the specialized steps to alter a configuration thereof to a first state for a wheelchair loading operation mode or to restore the configuration to a second state for normal operation mode. Each of the specialized steps includes a toothed rotor. The activating apparatus includes an engagement member for engaging with the toothed rotor. Each of the toothed rotors is rotated by engaging with the engagement member for causing one of the specialized steps to alter the configuration to the first state when the steps are running in the running path in the wheelchair loading operation mode, respectively.

Abstract: An escalator is arranged such that a first special step having a movable footplate capable of rising and falling is combined with a second special step adjacent to the upstream side of the first special step and having a projectable and retractable lift mechanism. The projectable and retractable lift mechanism supports the movable footplate of the first special step in part of a plurality of running steps provided endlessly in a line. When mounting a wheelchair, the movable footplate runs along the inclined path area with the movable footplate supported at the same height as the second special step by operating the lift mechanism in the horizontal path area of the travel path. The movable footplate ensures a rearward footplate dimension sufficient to carry the wheelchair.