U.S. patent number D494,552 [Application Number D/183,537] was granted by the patent office on 2004-08-17 for exhaust ring for manufacturing semiconductors.
This patent grant is currently assigned to Tokyo Electron Limited. Invention is credited to Norihiko Amikura, Takashi Kitazawa, Hiroshi Koizumi, Kazuyuki Tezuka.
United States Patent |
D494,552 |
Tezuka , et al. |
August 17, 2004 |
Exhaust ring for manufacturing semiconductors
Claims
We claim the ornamental design for exhaust ring for manufacturing
semiconductors, as shown and described.
Inventors: |
Tezuka; Kazuyuki (Nirasaki,
JP), Kitazawa; Takashi (Nirasaki, JP),
Amikura; Norihiko (Nirasaki, JP), Koizumi;
Hiroshi (Nirasaki, JP) |
Assignee: |
Tokyo Electron Limited (Tokyo,
JP)
|
Appl.
No.: |
D/183,537 |
Filed: |
June 12, 2003 |
Foreign Application Priority Data
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Dec 12, 2002 [JP] |
|
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2002-034492 |
Dec 12, 2002 [JP] |
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2002-034497 |
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Current U.S.
Class: |
D13/182 |
Current International
Class: |
1303 |
Field of
Search: |
;D13/182 ;D8/399
;D15/144 ;118/666,715,733 ;219/444.1 ;414/147,217,247,935-941
;438/482,706,716,758 ;451/285 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Deshmukh; Prabhakar
Assistant Examiner: Sikder; Selina
Attorney, Agent or Firm: Ladas & Parry
Description
FIG. 1 is a front/top/right-side perspective view of an exhaust
ring for manufacturing semiconductors showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right-side elevational view thereof, the left-side
elevational view being a mirror image and, therefore, not
shown;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a reference front elevational view;
FIG. 8 is a cross-sectional view taken along line 8--8 in FIG.
7;
FIG. 9 is an enlarged, partial, cross-sectional view taken along
line 9--9 in FIG. 8; and,
FIG. 10 is an enlarged, partial, cross-sectional view taken along
line 10--10 in FIG. 8.
The exhaust ring for manufacturing semiconductors is used in a
vacuum vessel for manufacturing semiconductors.
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