35 Utility Patents
#3,329 in Tokyo
#15,247 in Japan
#71,626 in the World
Forward Citations = 460
Company Filing History:
Other
Kabushiki Kaisha Ultraclean Technology Research Institute
Sipec Corporation
4. 2 out of 27
Tadahiro Ohmi
5. 1 out of 439

where one patent can have more than one assignee
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