IP Library › Assignment 012982/0905
Patent Assignment
Reel/Frame 012982/0905

Assignment of Assignor's Interest

Recorded: 2002-06-11 Pages: 3
Assignors
TSUDA, KEIICHI
Executed: 2002-05-13
MORI, NOBUYUKI
Executed: 2002-05-13
MORIGUCHI, HIDEKI
Executed: 2002-05-13
Assignees
JAPAN NATIONAL OIL CORPORATION
2-2, UCHISAIWAI-CHO 2-CHOME, CHIYODA-KU, TOKYO, JAPAN
SUMITOMO ELECTRIC INDUSTRIES, LTD.
5-33, KITAHAMA 4-CHOME, CHUO-KU, OSAKA-SHI, OSAKA, JAPAN
Covered Property (1)
Insert Chip of Oil-Drilling Tricone Bit, Manufacturing Method Thereof and Oil-Drilling Tricone Bit
Patent: 6,719,074 →
Application: 10/105,012 →
Publication: US 2003/0051924
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger Mar 2, 2005
From: JAPAN NATIONAL OIL CORPORATION
To: JAPAN OIL, GAS AND METALS NATIONAL CORPORATION
Reel/Frame 015819/0188 →
Assignment of Assignor's Interest Oct 24, 2011
From: SUMITOMO ELECTRIC INDUSTRIES, LTD.
To: JAPAN OIL, GAS AND METALS NATIONAL CORPORATION
Reel/Frame 027109/0282 →