IP Library › Assignment 015819/0188
Patent Assignment
Reel/Frame 015819/0188

Merger

Recorded: 2005-03-02 Pages: 22
Assignor
JAPAN NATIONAL OIL CORPORATION
Executed: 2004-02-29
Assignee
JAPAN OIL, GAS AND METALS NATIONAL CORPORATION
1310, OMIYA-CHO, SAIWAI-KU, KAWASAKI-SHI, KANAGAWA, 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.
Assignment of Assignor's Interest Jun 11, 2002
From: TSUDA, KEIICHI; MORI, NOBUYUKI; MORIGUCHI, HIDEKI
To: JAPAN NATIONAL OIL CORPORATION; SUMITOMO ELECTRIC INDUSTRIES, LTD.
Reel/Frame 012982/0905 →
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 →