18IPM020up.txt
受験番号：18IPM020============================================================================

問1[0002] Fig. 1 is a view illustrating one example of a conventionalorganic-material ejection nozzle. The ejection nozzle 10 is coupled to an outerwall 21 by, e.g., a threaded coupler 12, and the outer wall 21 defines a chamber
20.
[0003] In vapor deposition, the chamber 20 and the ejection nozzle 10 contact avaporized source material passing through an ejection hole 11, so thathigh-temperature states of the chamber 20 and the ejection nozzle 10 are
established by heat transferred from the vaporized source material. Aftercompletion of the vapor deposition, low-temperature states of the chamber 20 andthe ejection nozzle 10 are established again. In course of repetition of thevapor deposition, the chamber 20 and the ejection nozzle 10 are subjected to acyclic load which is caused by repeated expansion and contraction of the chamber
20 and the ejection nozzle 10 due to the heat. Such a cyclic load due to heat
may unfortunately cause slack and/or crack in a portion of the threaded coupler
12 for coupling the ejection nozzle 10 to the outer wall 21 defining the chamber
20, leading to a fine clearance formed between the ejection nozzle 10 and theouter wall 21 defining the chamber 20.
[0004] In the event of such damage to the coupler for coupling the ejection
nozzle and the chamber, the vaporized source material in the chamber may leakout to the outside from the damaged portion of the coupler, which may result in
not only the expensive source material being lost but also an area different
from a substrate being soiled with the source material having leaked.
問2[0010] Fig. 1 is a cross-sectional view illustrating a porous plastic bearing
according to Embodiment 1, and Fig. 2 is a cross-sectional view taken along line
II-II in Fig. 1. In Figs. 1 and 2, reference numeral 1 denotes a shaft (arotation shaft), and reference numeral 2 denotes a plain bearing formed of
porous plastic. The shaft 1 is rotatably borne by the plain bearing 2. The
plain bearing 2 is constituted by a collective sintered body of plastic
particles 3 formed of ABS resin, and lubricating oil 4 with which the collective
sintered body is impregnated. Reference numeral 3a denotes pores formed between
the plastic particles 3. The lubricating oil 4 flows through these pores 3a andexudes from the pores 3a to an inner circumferential surface of the plain
bearing 2.
[0011] More specifically, the plain bearing 2 is formed by sintering of acollection of a multiplicity of the plastic particles 3 (more than one plastic
particle 3) each having a deposition of 0.004-4 cube mm, which collection has aporosity of 10-30 %.
[0012] Rotation of the shaft 1 generates a negative pressure on an opposite
side from a loaded side between the shaft 1 and the inner circumferential
surface of the plain bearing 2. Thus, the lubricating oil 4 spreading between
the plastic particles 3 of the plain bearing 2 exudes to the inner
circumferential surface of the plain bearing 2 and flows to a loaded portion of
the inner circumferential surface of the plain bearing 2 which is nearest to theページ(1)18IPM020up.txt
shaft 1 among the inner circumferential surface. A positive pressure isgenerated at this loaded portion, which avoids a contact between the shaft 1 andthe plain bearing 2, resulting in a reduced frictional resistance between theshaft 1 and the plain bearing 2.
コメント：[0010]のII-II線は、図１を見るとI-I線となっておりますが、II-II線が正しいと考えそのまま訳しました。図面を修正するべきと考えます。
問3(1) stepの語を使用するクレーム
1. A method for manufacturing a gear, comprising:a gear processing step of machining steel to obtain a gear having apredetermined shape; anda quenching step of quenching the gear by heating the obtained gear tocause a change thereof to an Austenite phase and thereafter rapidly cooling thegear to cause a change thereof to a Martensite phase under an atmosphere
containing carbonization gas and ammonia gas,
wherein the quenching step comprises a step of adjusting an amount ofretained austenite on an uppermost surface including a tooth surface of thegear, to 40-80 % of a volume of the steel.
(2) stepの語を使用しないクレーム
1. A method for manufacturing a gear, comprising:machining steel to obtain a gear having a predetermined shape; andquenching the gear by heating the obtained gear to cause a change
thereof to an Austenite phase and thereafter rapidly cooling the gear to cause achange thereof to a Martensite phase under an atmosphere containing
carbonization gas and ammonia gas,
wherein in the quenching, an amount of retained austenite on an
uppermost surface including a tooth surface of the gear is adjusted to 40-80 %of a volume of the steel.

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