Abstract: A model includes arm parts each including a rotational shaft portion, and a body part including a shaft supporting portion and being connected to and rotatable relative to the arm part. The arm part includes a projecting portion. The body part includes a recessed portion into which the projecting portion is fitted when the rotational shaft portion is inserted into the shaft supporting portion. The rotational shaft portion and the shaft supporting portion include respective locking members that are engageable with each other and limit the movement of the rotational shaft portion in an axial direction within a range between a first position where the projecting portion is fitted in the recessed portion and a second position where the projecting portion is out of the recessed portion.

Abstract: An information processing system includes an information bearing medium and an information reading unit. The information bearing medium has a two-dimensional array of unit data zones. Marks are provided on some of the unit data zones so as to form a digital code. Mark patterns of any two Y-directional adjacent unit data zone strings based on the arrangement of marks in an X-direction differ from each other. The information reading unit generates a data string on the basis of a unit signal formed from a plurality of signals output from a group of detection units that detect the marks in synchronization and recognizes the digital code of the information bearing medium on the basis of a group of the data strings sequentially obtained from the array of the unit data zones.

Abstract: An image display device includes a transparent plate which may be disposed in an inclined manner with respect to a display section of a portable terminal provided with the display section. A display displayed on the display section may be reflected on the transparent plate. A space behind the transparent plate may be viewed through the transparent plate and, at the same time, an image on the display section of the portable terminal may also be viewed while being reflected on the transparent plate.