21 Utility Patents
#6,826 in Tokyo
#34,109 in Japan
#157,673 in the World
Forward Citations = 54
Company Filing History:
Kumiai Chemical Industry Co., Ltd.
Ihara Chemical Industry Co., Ltd.

4. 2 out of 55
Tokyo Metropolitan Institute of Medical Science
5. 2 out of 832,540 patents
Other
where one patent can have more than one assignee
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