22 Utility Patents
#6,422 in Tokyo
#31,957 in Japan
#148,495 in the World
Forward Citations = 39
Company Filing History:

Unizeo Co., Ltd.
Mitsui Minings & Melting Co., Ltd.
4. 2 out of 4
Nat'l University Corp. Yokohama Nat'l University
5. 1 out of 163

where one patent can have more than one assignee
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