64 Utility Patents
#9 in Aichi-ken
#4,533 in Japan
#23,619 in the World
Forward Citations = 1,455
Company Filing History:

Sumita Optical Glass, Inc.
Other
where one patent can have more than one assignee
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#9 in Aichi-ken
#4,533 in Japan
#23,619 in the World
Company Filing History:

Get your Inventor Badge Today