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Patent Assignment Abstract of Title

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Total Assignments: 2

Patent #:	7833681	Issue Dt:	11/16/2010	Application #:	11898587	Filing Dt:	09/13/2007
Publication #:	20080070132	Pub Dt:	03/20/2008
Inventors:	Masahiro Hashimoto, Tomoyuki Enomoto, Takahiro Sakaguchi, Rikimaru Sakamoto et al
Title:	MASK BLANK AND MASK

Assignment: 1

Reel/Frame:

020238/0038

Recorded: 12/11/2007

Pages: 3

Conveyance:

ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors:

HASHIMOTO, MASAHIRO

Exec Dt:

11/12/2007

ENOMOTO, TOMOYUKI

Exec Dt:

11/12/2007

SAKAGUCHI, TAKAHIRO

Exec Dt:

11/12/2007

SAKAMOTO, RIKIMARU

Exec Dt:

11/12/2007

NAGAI, MASAKI

Exec Dt:

11/12/2007

Assignees:

HOYA CORPORATION

7-5, NAKA-OCHIAI 2-CHOME

SHINJUKU-KU, TOKYO, JAPAN

NISSAN CHEMICAL INDUSTRIES LTD.

7-1, KANDA-NISHIKI-CHO 3-CHOME

CHIYODA-KU, TOKYO, JAPAN

Correspondent:

JAMES A. OLIFF

OLIFF & BERRIDGE, PLC

P.O. BOX 320850

ALEXANDRIA, VA 22320-4850

Assignment: 2

Reel/Frame:

020443/0172

Recorded: 01/30/2008

Pages: 6

Conveyance:

CORRECTIVE ASSIGNMENT TO CORRECT THE SECOND ASSIGNEE'S NAME PREVIOUSLY RECORDED ON REEL 020238, FRAME 0038. ASSIGNORS HEREBY CONFIRM THE ASSIGNMENT OF THE ENTIRE INTEREST.

Assignors:

HASHIMOTO, MASAHIRO

Exec Dt:

11/12/2007