Abstract: An arithmetic device and an electronic device having small power consumption is provided. An arithmetic device and an electronic device capable of high-speed operation is provided. An arithmetic device and an electronic device capable of suppressing heat generation is provided. The arithmetic device includes a first arithmetic portion and a second arithmetic portion. The first arithmetic portion includes a first CPU core and a second CPU core. The second arithmetic portion includes a first GPU core and a second GPU core. The CPU cores each have a power gating function and each include a first data retention circuit electrically connected to a flip-flop. The first GPU core includes a second data retention circuit capable of retaining an analog value and reading out the analog value as digital data of two or more bits. The second GPU core includes a third data retention circuit capable of retaining a digital value and reading out the digital value as digital data of one bit.

Abstract: A lever of a metallic binding band is gripped by holding pieces. A pair of forming pieces are located in the loop section of the binding section of the metallic binding band. Forming pieces having outer circumferential arc faces are offset from each other laterally so that the binding section is expanded by the forming pieces into true circle.

Abstract: A rotary switch has a case, a housing, and a rotor rotatably arranged in a chamber of the housing. The housing carries a pair of projections on both side walls and a pair of corner projections together with a pair of grooves defined in the bottom center thereof, while the case has a pair of bent legs in the center of which are defined holes to receive the side wall projections of the housing and the undersurface of which extend to form a pair of depending lugs which may be crimped inwardly into a pair of grooves defined in the housing. A contact member positioned between the rotor and the housing carries a plurality of contact fingers provided with contact projections having contact points one of which may be contacted, in accordance with the rotation of the rotor, on one of the terminal lead contacts spaced around the housing chamber caused by slidable touching on one of the contact projections by means of a cam pattern provided on a circuit board attached to the rotor.

Abstract: A rotary switch has a case, a housing, and a rotor rotatably arranged in a chamber of the housing. The housing carries a pair of projections on both side walls and a pair of corner projections together with a pair of grooves defined in the bottom center thereof, while the case has a pair of bent legs in the center of which are defined holes to receive the side wall projections of the housing and the undersurface of which extend to form a pair of depending lugs which may be crimped inwardly into a pair of grooves defined in the housing. A contact member positioned between rotor and the housing carries a plurality of contact fingers provided with contact projections having contact points one of which may be contacted, in accordance with the rotation of the rotor, on one of the terminal lead contacts spaced around the housing chamber caused by slidable touching on one of the contact projections by means of a cam pattern provided on a circuit board attached to the rotor.

Abstract: A rotary selector switch having a wiper which is arranged on a rotor rotatably held in a cavity formed by a housing and case and is slidingly rotated on the housing base on which are disposed fixed contact elements, thereby to connect electrically at least one of the fixed contact elements to one of the remaining fixed contact elements, in which vertical walls of dovetail portions constituting a ridge projecting from the rotor base are arranged to abut in turn against side walls of ridges extended from an annular ledge arranged at an inner side of the housing corresponding to the rotation of the rotor whereby the rotation of the rotor is stopped; a slot defined in one of the dovetail portions of the ridge arranged on the rotor base is engaged in turn with one of the projections arranged on the housing base corresponding to the rotation of the rotor whereby an audible click may be caught; a slit defined in the housing base between the fixed contact elements disposed thereon aids to cut off a chain of undesirab

Abstract: A DIP rotary code switch provided with a plurality of terminals arranged on a circuit board embedded in a base includes a rotor, conductive patterns disposed, on the bottom surface of the rotor the rotor being rotatably mounted in a cavity formed by a housing and a base, a contact member holder having a center boss on the upper surface thereof which rotatably supports the rotor and having slots extending therethrough and a contact member provided with an apex head fitted respectively into a slot extending through the contact member holder, the apex head intermittently contacting conductive patterns of the rotor when rotated and the contact member having two legs fitted respectively into slits extending in a the base to be electrically connected to conductive elements arranged on the surface of the circuit board embedded in the base.

Abstract: A positive-working photosensitive composition comprising (a) an o-quinonediazide compound and (b) a condensed resin containing a condensation unit composed of an aromatic compound having a carboxylic group and a phenolic ahydroxyl group, and an aldehyde or ketone is disclosed. Said condensation unit has the following formula (I): ##STR1## wherein R.sub.1 is a hydrogen atom, a hydroxyl group, an acyloxy group, an alkyl group, an alkoxy group or a halogen atom, which may be the same or different when n is 2; R.sub.2 and R.sub.3 are each a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms, a phenyl group or a substituted phenyl group, which may be the same or different; and n is 1 or 2.

Abstract: A posi-type photosensitive composition having enhanced sensitivity is prepared by incorporating a specific sensitizer selected from gallic acid, its derivative, naphthoquinone compound and its derivative in a quinonediazide type photosensitive material. The composition is free from lowering in development tolerance and other properties.

Abstract: A developing process suitable to treat a positive photosensitive lithographic printing plate comprising a photosensitive layer containing, as the photosensitive constituent, an o-quinonediazide compound provided on an aluminium plate. A positive photo-sensitive lithographic printing plate is exposed imagewise and then developed with a developing solution containing an aqueous solution of an alkali metal silicate in which the alkali metal is essentially constituted by potassium. With the method, development treatment can be conducted stably for a long period without generating insolubes in the developing solution even when an extremely large quantity of positive photosensitive lithographic plates are treated.