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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
02/02/1993
Application #:
07689941
Filing Dt:
05/28/1991
Inventors:
ISAO HARADA, HISASHI HOKONOHARA, TOSHIAKI YAMAGUCHI
Title:
METHOD FOR PURIFYING NITROGEN TRIFLUORIDE GAS
Assignment: 1
Reel/Frame:
005842/0813Recorded: 05/28/1991Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
Exec Dt:
04/26/1991
Exec Dt:
04/26/1991
Exec Dt:
04/26/1991
Assignee:
2-5, KASUMIGASEKI 3-CHOME, CHIYODA-KU
TOKYO 100, JAPAN
Correspondent:
FISHER, CHRISTEN & SABOL
2000 L STREET, N. W.
STE. 590
WASHINGTON, DC 20036
Assignment: 2
Reel/Frame:
009146/0377Recorded: 05/04/1998Pages: 22
Conveyance:
MERGER (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
12/19/1997
Assignee:
2-5, KASUMIGASEKI 3-CHOME CHIYODA-KU
TOKYO, JAPAN
Correspondent:
BURNS, DOANE, SWECKER & MATHIS, L.L.P.
ROBERT G. MUKAI
P.O. BOX 1404
ALEXANDRIA, VIRGINIA 22313-1404

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