Abstract: Provided are: an Mn ferrite powder characterized by including a plurality of ferrite particles, having a volume-average particle diameter of 1-10 ?m, and having a 2.106 ?m volume-based cumulative distribution (sieved) of 0.1-50.0 vol %; and a resin composition characterized by including said powder and a resin material.

Abstract: An electric motor 1 and a worm gear 11 were housed in a case, an output shaft 2 of the electric motor 1 and a fitting hole 11C of the worm gear 11 were fitted so as to be capable of freely transmitting torque and of freely moving relatively in a direction of an axis X, and a tip of the output shaft 2 and an inner end of the fitting hole 11C set a gap D of separation in the direction of the axis X. Furthermore, a support section 30 making contact with an end section of a shaft section 11A of the worm gear 11 at the side of the electric motor 1 thereof was provided inside the case, and a thrust force resulting from dynamic inertia of the wheel gear 11 upon stopping of the electric motor 1 and acting on the worm gear 11 was borne by the support section 30.

Abstract: This invention provides an automotive door lock device capable of securely preventing a dropout of an operation connecting portion of an operation device from an operating lever connecting portion of an operating lever member. The automotive door lock device includes a housing having a housing body including an opening portion and a cover portion formed integrally with the housing body for opening and closing the opening portion. An operating lever member is placed in the housing and has an operating lever connecting portion. The operation device has an operation connecting portion to be connected to the operating lever connecting portion. The cover portion of the housing has a projecting portion for preventing a dropout of the operation connecting portion of the operation device.

Abstract: An electric motor 1 and a worm gear 11 were housed in a case, an output shaft 2 of the electric motor 1 and a fitting hole 11C of the worm gear 11 were fitted so as to be capable of freely transmitting torque and of freely moving relatively in a direction of an axis X, and a tip of the output shaft 2 and an inner end of the fitting hole 11C set a gap D of separation in the direction of the axis X. Furthermore, a support section 30 making contact with an end section of a shaft section 11A of the worm gear 11 at the side of the electric motor 1 thereof was provided inside the case, and a thrust force resulting from dynamic inertia of the wheel gear 11 upon stopping of the electric motor 1 and acting on the worm gear 11 was borne by the support section 30.

Abstract: This invention provides an automotive door lock device capable of securely preventing a dropout of an operation connecting portion of operation means from an operating lever connecting portion of an operating lever member. In an automotive door lock device comprising a housing 10 having a housing body including an opening portion 13, and a cover portion 122b formed integrally with the housing body 12 for opening and closing the opening portion 13; an operating lever member 21 placed in the housing 10 and having an operating lever connecting portion 21c; and operation means 52 having an operation connecting portion 52a to be connected to the operating lever connecting portion 21c, the automotive door lock device of the present invention is characterized in that the cover portion 122b of the housing has a projecting portion 122c for preventing a dropout of the operation connecting portion 52a of the operation means 52.