Abstract: A photoresponsive polymer includes a structural unit represented by the following general formula (1), the photoresponsive polymer being fluidized by light irradiation, and reversibly non-fluidized: [Chemical formula 1] R1—Z1?Z2—R2??General formula (1) in the formula, Z1 and Z2 each represent CH or N, and Z1?Z2, R1 represents an aromatic hydrocarbon group having a substituent Ra selected from the group consisting of an alkyl group, an alkoxy group, and a halogen atom at each of two ortho positions with respect to Z1, R2 represents an aromatic heterocyclic group with or without a substituent, and at least one of the R1 and the R2 is bonded to a group containing a structure derived from a polymerizable group.

Abstract: A composition includes an isomerized polymer containing a structural unit containing an isomerized structure and an isomerized low molecular weight compound, the composition being fluidized by light irradiation from a solid state and being reversibly non-fluidized.

Abstract: Provided is a laundry dryer including a first duct having a first outlet opening at the rear of a drum storing laundry, and a second duct with a second outlet opening at the front of the drum. The second outlet has a smaller bore allowing air passage than the first outlet. The first and second ducts are selectively switched during the drying process in response to temperature detectors which detect the dry air temperature before and after contact between the air and the laundry. A larger volume of air is blown from the first outlet under selection of the first duct than the second duct whereas the dry air is blown from the second outlet at higher pressure and higher velocity under selection of the second duct than the first duct.

Abstract: Provided is a laundry dryer including: a first duct (9) having a first outlet (8) which opens at a rear side of a drum (1) for storing laundry, and a second duct (11) with a second outlet (10) which opens at a front side of the drum (1). The second outlet (10) has a narrower cross-sectional area, through which air passes, than the first outlet (8). The first or second duct (9, 10) is selectively switched during the drying process. A larger volume of dry air is blown from the first outlet (8) under selection of the first duct (9) than the second duct (11). The dry air is blown from the second outlet (10) at higher pressure and higher velocity under selection of the second duct (11) than the first duct (9).

Abstract: A fuel tank stores fuel gas. A catalytic burning section is connected to the fuel tank for generating heat based on an oxidative reaction between the fuel supplied from the fuel tank and air. The fuel tank and the catalytic burning section are assembled as a catalytic heat generating apparatus. The catalytic heat generating apparatus is detachably installed in a housing of a heater section. The heater section has both ends provided with a pair of belt portions wound around a user's body.

Abstract: A V-shaped, air-cooled engine is provided with a cover on the front thereof, which houses a cooling fan connected to the engine's crankshaft. The interior of the cover is fitted with dividers to separate the air flow and direct it to the opposite sides of the engine, and to form a compartment for housing components of a non-contact ignition system. The non-contact ignition system is operated by the cooling fan, and is cooled by the flow of air through the cover. Components of the ignition system are permanently connected to each other, without the usual separable connectors.

Abstract: A V-shaped, air-cooled engine has a lubricant pump located in the lower portion of the crankcase, and at least partly immersed in the engine lubricating oil so that oil is contained therein at all times. Lubricating oil is pumped to the cylinders through internal passages in the crankcase, and through annular passages between the valve push rods and their tubular housings. Lubricant return passages lead through the cooling fins provided on the cylinders, so that cooling air flowing over the cylinder fins serves to cool the lubricating oil.