2 Utility Patents
#15,003 in Osaka
#304,293 in Japan
Forward Citations = 3
Company Filing History:
Kabushiki Kaisha Kobe Seiko Sho
Okumura Corporation
Nippon Hyumukan Kabushiki Kaisha
4. 1 out of 1
Zaidan Hohjin Doboku Kenkyu Center
5. 1 out of 2
Nittoku Kensetsu Kabushiki Kaisha
where one patent can have more than one assignee
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