17 Utility Patents
#173 in Itami
#45,417 in Japan
#211,353 in the World
Forward Citations = 407
Company Filing History:

Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co., Ltd.
Ryoden Kasei Co., Ltd.
4. 1 out of 1
The Nippon Corrosion Engineering Co., Ltd.
5. 1 out of 1,281

where one patent can have more than one assignee
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