46 Utility and 1 Design Patents
#706 in Yokohama
#8,816 in Japan
#42,154 in the World
rank by utility patentsForward Citations = 1,005
Company Filing History:
Hitachi, Ltd.

Hitachi Industrial Equipment Systems Co., Ltd.
4. 1 out of 4,490

5. 1 out of 46

where one patent can have more than one assignee
Get your Inventor Badge Today