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Patent Assignment Abstract of Title

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Total Assignments: 2

Patent #:	7145890	Issue Dt:	12/05/2006	Application #:	09807060	Filing Dt:	07/16/2001
Inventors:	Sang-Hoon Seo, Tae-Gue Kim, Tae-Hoon Park, In-Hong Lee, Sun Park
Title:	METHOD FOR CARRYING OUT HANDOFF BETWEEN MACROCELL AND MICROCELL IN HIERARCHICAL CELL STRUCTURE

Assignment: 1

Reel/Frame:

011978/0489

Recorded: 07/13/2001

Pages: 2

Conveyance:

ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors:

SEO, SANG-HOON

Exec Dt:

05/23/2001

KIM, TAE-GUE

Exec Dt:

05/23/2001

PARK, TAE-HOON

Exec Dt:

05/23/2001

LEE, IN-HONG

Exec Dt:

05/23/2001

PARK, SUN

Exec Dt:

05/23/2001

Assignee:

SK TELECOM LTD.

99 SEORIN-DONG, JONGRO-KU

SEOUL 110-110, KOREA, REPUBLIC OF

Correspondent:

BLAKELY, SOKOLOFF, TAYLOR & ZAFMAN LLP

ERIC S. HYMAN

12400 WILSHIRE BOULEVARD, 7TH FLOOR

LOS ANGELES, CALIFORNIA 90025

Assignment: 2

Reel/Frame:

017581/0922

Recorded: 05/05/2006

Pages: 3

Conveyance:

CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE NAME PREVIOUSLY RECORDED ON REEL 011978 FRAME 0489. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT TO SK TELECOM CO., LTD.

Assignors:

SEO, SANG-HOON

Exec Dt:

05/23/2001