Abstract: One or more embodiments of the present invention provide a microbial strain with improved productivity of ?-glutamylcysteine, bis-?-glutamylcystine, ?-glutamylcystine, reduced glutathione, and/or oxidized glutathione. Such microbial strain has disruption of [1] a gene encoding ?-glutamyltransferase and [2] a gene encoding phosphoglycerate mutase and enhanced expression of [3] a gene encoding glutamate-cysteine ligase and/or a gene encoding glutathione synthetase or [4] a gene encoding bifunctional glutathione synthetase. This invention also discloses a method for producing the substances mentioned above via culture of the microbial strain.

Abstract: A stator is improved in work efficiency of mounting to a stator core is provided. The stator includes insulators sandwiching the stator core therebetween. The stator core includes a plurality of teeth that radially projects. Each of the insulators includes a plurality of tooth covering portions that radially projects. The tooth covering portions cover the teeth. In a facing portion of one of the insulators facing the stator core, a peripheral portion projects more than a center portion. In a facing portion of the other of the insulators facing the stator core, a center portion projects more than a peripheral portion.

Abstract: A stator used for a motor and having excellent vibration resistance, waterproofness, and an insulating property. The stator used for a motor includes a stator core having a plurality of teeth arranged at substantially equal intervals on a same circumference, and an insulator covering the teeth, and coil portions are formed by wires being winded around portions of the insulator that covers the plurality of teeth. The insulator includes first wall portions provided on the center axis side with respect to the coil portion, and molded portions formed, by resin, on the center axis side with respect to the first wall portions. Wire extended portions of the wire pulled out from the coil portion straddle the first wall portions. Wire terminal end portions are connected to bus rings. The bus rings are embedded in the molded portions.

Abstract: A stator is improved in work efficiency of mounting to a stator core is provided. The stator includes insulators sandwiching the stator core therebetween. The stator core includes a plurality of teeth that radially projects. Each of the insulators includes a plurality of tooth covering portions that radially projects. The tooth covering portions cover the teeth. In a facing portion of one of the insulators facing the stator core, a peripheral portion projects more than a center portion. In a facing portion of the other of the insulators facing the stator core, a center portion projects more than a peripheral portion.

Abstract: A stator used for a motor and having excellent vibration resistance, waterproofness, and an insulating property. The stator used for a motor includes a stator core having a plurality of teeth arranged at substantially equal intervals on a same circumference, and an insulator covering the teeth, and coil portions are formed by wires being winded around portions of the insulator that covers the plurality of teeth. The insulator includes first wall portions provided on the center axis side with respect to the coil portion, and molded portions formed, by resin, on the center axis side with respect to the first wall portions. Wire extended portions of the wire pulled out from the coil portion straddle the first wall portions. Wire terminal end portions are connected to bus rings. The bus rings are embedded in the molded portions.

Abstract: In a rotary electric device for a power working machine capable of being braked by a brake mechanism, a cover having a bottomed cylindrical shape and covering a yoke of the device, includes: a cover cylindrical portion concentrically surrounding an outer peripheral surface of a cylindrical portion of the yoke with an annular clearance therebetween, and having an outer peripheral surface with which a brake shoe is capable of being placed in pressure contact; and a cover bottom wall portion continuous to one end of the cover cylindrical portion, and connected to a bottom wall portion of the yoke. A ventilation clearance communicating with the annular clearance is formed between the bottom wall portion and the cover bottom wall portion. Vent holes communicating the ventilation clearance with an outside of the yoke are provided through the bottom wall portion and the cover bottom wall portion.

Abstract: In a rotary electric device for a power working machine capable of being braked by a brake mechanism, a cover having a bottomed cylindrical shape and covering a yoke of the device, includes: a cover cylindrical portion concentrically surrounding an outer peripheral surface of a cylindrical portion of the yoke with an annular clearance therebetween, and having an outer peripheral surface with which a brake shoe is capable of being placed in pressure contact; and a cover bottom wall portion continuous to one end of the cover cylindrical portion, and connected to a bottom wall portion of the yoke. A ventilation clearance communicating with the annular clearance is formed between the bottom wall portion and the cover bottom wall portion. Vent holes communicating the ventilation clearance with an outside of the yoke are provided through the bottom wall portion and the cover bottom wall portion.