13 Utility Patents
#707 in Chiba
#62,908 in Japan
#293,513 in the World
Forward Citations = 124
Company Filing History:

Seiko Koki Kabushiki Kaisha
Mitsui Sekitan Kogyo Kabushiki Kaisha
4. 2 out of 3
Kabushiki Kaisha Mitsui Miike Seisakusho
5. 2 out of 2
Zaidan Hojin Sekitan Gijutsu Kenkyusho
where one patent can have more than one assignee
Get your Inventor Badge Today