受験番号：28IPM014

問１[0003]
SUMMARY OF THE INVENTION
However, air resistance cannot be ignored even for an object with a smoothsurface. For the transporting objects mentioned above, air resistance adversely affects
their fuel efficiency, acceleration, maximum speed, and stability. In particular, the fuelefficiency issue is directly related to environment issues such as the energy resource
issue, pollution, acid rain, and global warming, and becoming increasingly larger withthe recent increase in traffic energy. In addition, objects that fly at ultrahigh speed
have the issue of heating by friction with air (aerodynamic heating). For example, aspace shuttle reaches a speed of 7.6 km per second when reentering the atmosphere,and thus the surface temperature increases partially to as high as 1400°C or more dueto the frictional heating. Thus, it is significantly challenging to develop heat resistingmaterials and heat insulating structures for these objects, and the development of an
innovative technology for improving the durability is also an urgent issue.
[0004]The present invention is intended to solve the stated issues, and provide aninnovative structure with reduced fluid resistance on the object surface that leads to arevolutionary technology. The technology can reduce the fluid resistance on the object
surface compared with the smooth surface based on a new theory of hydromechanics,
thus improving the fuel efficiency, the acceleration, the maximum speed, and thestability of all transporting objects. In particular, the technology contributes to global
grappling with saving energy and solving the environment issues. For objects that fly
at ultrahigh speed, the technology can reduce frictional heating and various parasitedrags to improve the durability and reduce the costs of heat resisting materials andheat insulating structures.

問２Then, each bell-like core 1 was placed in position within the cavity of a mold fora final hollow molded product, as shown in Fig. 2.
The mold includes three mold parts: a mold A denoted by 20 in Fig. 2, a mold B
denoted by 30, and a mold C denoted by 40. The mold A has projections 22 and 23, themold B has projections 32 and 33, and the mold C has a projection 41.

More specifically, the core 1 has an upper projection 11 in contact with theprojection 22 of the mold A and the projection 32 of the mold B. The core 1 also has athrough-hole 12 in contact with the projection 23 of the mold A and the projection 33 of
the mold B, and these projections are separated from the interior wall of the core 1.
The core 1 also has a recess 13 in which the projection 41 of the mold C is received. Asa result, the core 1 is placed in position with the mold cavity.
Around each core 1 placed in the mold, each outer shell resin (B) 5 is injected
via an injection hole 21 illustrated in Fig. 2 at the injection molding temperature(320°C). The resin is subjected to injection molding and then cooled, resulting in amolded article integrated with the core.

Good: No cracks visually confirmed on the outer shell resin (the core not deformed, amolded article integrated with the core obtained)
Not good: Cracks visually confirmed on the outer shell resin (the core slightly deformed
during the injection molding of the resin (B))
Poor: Significant cracks visually confirmed on the outer shell resin (the coresignificantly deformed during the injection molding of resin (B))
翻訳コメント「○」は Good、 「△」は Not good、「×」は Poor と訳しました。
問３
1.

A simplified zoom lens mechanism including a lens barrel containing a fixedlens groups at both ends and two movable lens groups between the fixed lens groups
along an optical axis L, one of the movable lens groups being configured for zooming tochange a shooting magnification of a subject, another of the movable lens groups being
configured for focusing, the two movable lens groups in the lens barrel being eachmovable along the optical axis L, the zoom lens mechanism comprising:a driving shaft 5 and a driven shaft 6 provided about the optical axis L and inparallel with the optical axis L;
a driving body 8 integrated with a frame of the focusing movable lens group 4and provided on the driving shaft 5 in a slidable manner; anda driven body 9 integrated with a frame of the zooming movable lens group 3and provided on the driven shaft 6 in a slidable manner,
wherein the driving body 8 on the driving shaft 5 is capable of driving thedriven body 9 on the driven shaft 6, whereby the zooming movable lens group 3 and thefocusing movable lens group 4 are movable along the optical axis L.