22 Utility and 1 Design Patents
#62 in Mito
#31,790 in Japan
#147,290 in the World
rank by utility patentsForward Citations = 166
Company Filing History:



4. 1 out of 532

5. 1 out of 18
Hitachi Instrument Engineering Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today