7 Utility Patents
#473 in Fukuoka
#121,533 in Japan
#596,497 in the World
Forward Citations = 57
Company Filing History:

Nippon Tansan Co., Ltd.
Honshu Seishi Kabushiki Kaisha
4. 1 out of 1
Nippan Tansan Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today