21 Utility and 2 Design Patents
#546 in Saitama 343-0827
#33,607 in Japan
#154,719 in the World
rank by utility patentsForward Citations = 201
Company Filing History:
Nihon Dempa Kogyo Co., Ltd.

Yamata Scale Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today