34 Utility Patents
#49 in Tsukuba
#15,968 in Japan
#75,040 in the World
Forward Citations = 1,104
Company Filing History:



4. 1 out of 15
Hitachi Industries Co., Ltd.
5. 1 out of 18
Hitachi Instrument Engineering Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today