Patent
   D438515
Priority
Sep 20 1999
Filed
Mar 09 2000
Issued
Mar 06 2001
Expiry
Mar 06 2015
Assg.orig
Entity
unknown
5
6
n/a
The ornamental design for a portion of heat sink, as shown and described.

FIG. 1 is a front, top and right side perspective view of a portion of heat sink showing our new design;

FIG. 2 is a front elevational view thereof, the rear elevational view being symmetrical with that shown;

FIG. 3 is a right side elevational view thereof, the left side being symmetrical with that shown;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is an enlarged cross-sectional view thereof, taken along line 6--6 of FIG. 2.

The broken-line disclosure in the views is for illustrative purposes only and forms no part of the claimed design.

Yokoyama, Hisashi, Ikai, Takeshi, Kato, Yasuhiko, Miyake, Toshihiko

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Patent Priority Assignee Title
4715438, Jun 30 1986 Unisys Corporation Staggered radial-fin heat sink device for integrated circuit package
5680880, Jun 17 1994 Mitsubishi Denki Kabushiki Kaisha Motor driven type flow rate controlling valve
5718259, Jun 17 1994 Mitsubishi Denki Kabushiki Kaisha Motor driven type flow rate controlling valve
5785116, Feb 01 1996 AVAGO TECHNOLOGIES GENERAL IP SINGAPORE PTE LTD ; AVAGO TECHNOLOGIES GENERAL IP PTE LTD Fan assisted heat sink device
5794685, Dec 17 1996 HEWLETT-PACKARD DEVELOPMENT COMPANY, L P Heat sink device having radial heat and airflow paths
D428857, Sep 03 1999 AVAGO TECHNOLOGIES GENERAL IP SINGAPORE PTE LTD ; AVAGO TECHNOLOGIES GENERAL IP PTE LTD Cooling device
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 24 2000YOKOYAMA, HISASHIMitsubishi Denki Kabushiki KaishaASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0107580293 pdf
Feb 24 2000KATO, YASUHIKOMitsubishi Denki Kabushiki KaishaASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0107580293 pdf
Feb 25 2000IKAI, TAKESHIMitsubishi Denki Kabushiki KaishaASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0107580293 pdf
Feb 25 2000MIYAKE, TOSHIHIKOMitsubishi Denki Kabushiki KaishaASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0107580293 pdf
Mar 09 2000Mitsubishi Denki Kabushiki Kaisha(assignment on the face of the patent)
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