Abstract: An information processing method for use in a computer includes: acquiring a charging state and a deterioration state of a battery; determining an upper limit of the charging state of the battery based on the deterioration state; determining a charging plan of the battery based on the upper limit of the charging state determined and the charging state; and outputting the charging plan determined.

Abstract: A printer controller obtains high-speed bitmap generation processing while maintaining flexibility in macro definition when generating bitmap data from a macro-formed data. A processing unit calls macro data from a memory storing macro data to generate bitmap data. The processing unit determines effectiveness of bitmapping the macro instruction, to store into memory the bitmap data only when the bitmapped data is determined effective. Even in case of macro definition having degree of freedom, the data can be retained in a bitmap form. This enables to omit command analysis and expansion next time or after in macro control having flexibility in macro definition.

Abstract: An electromagnetic clutch includes a first magnetic member with a large-diameter cylindrical portion made of a magnetic metal and a second magnetic member with a small-diameter cylindrical portion made of a magnetic metal and contained in the large-diameter cylindrical portion are joined to an annular member of a non-magnetic material interposed between the large and small-diameter cylindrical portions to constitute a magnetic path forming member. The outer and inner circumferential edges of the annular member are welded to the large-diameter cylindrical portion and the small-diameter cylindrical portion, with the front end surface of the annular member receding a second predetermined distance (L2) from the front end surfaces of the large and small-diameter cylindrical portions. Then, the front end surfaces of the large and small-diameter cylindrical portions are cut until the receded distance of the front end surface of the annular member becomes a first predetermined distance (L1).

Abstract: An electromagnetic clutch is disclosed having a magnetic path forming member with a clutch contact surface which is large in area for magnetic path as well as good in flatness. The electromagnetic clutch is provided to be of the type that a first magnetic member with a large-diameter cylindrical portion made of a magnetic metal and a second magnetic member with a small-diameter cylindrical portion made of a magnetic metal and contained in the large-diameter cylindrical portion are bodily joined to an annular member of a non-magnetic material interposed between the large and small-diameter cylindrical portions to constitute a magnetic path forming member. In the electromagnetic clutch of the type, a friction clutch is arranged between a clutch contact surface formed at the front end surface of the magnetic path forming member and an armature, while an electromagnet is arranged behind the magnetic path forming member for generating magnetic flux between the large and small-diameter cylindrical portions.

Abstract: A printer controller obtains high-speed bitmap generation processing while maintaining flexibility in macro definition when generating bitmap data from a macro-formed data. A processing unit calls macro data from a memory storing macro data to generate bitmap data. The processing unit determines effectiveness of bitmapping the macro instruction, to store into memory the bitmap data only when the bitmapped data is determined effective. Even in case of macro definition having degree of freedom, the data can be retained in a bitmap form. This enables to omit command analysis and expansion next time or after in macro control having flexibility in macro definition.