Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Obayashi Corp
Takenaka Corp
Takenaka Civil Engineering and Construction Co Ltd
Original Assignee
Obayashi Corp
Takenaka Corp
Takenaka Civil Engineering and Construction Co Ltd