29 Utility Patents
#1,542 in Yokohama
#20,902 in Japan
#97,873 in the World
Forward Citations = 350
Company Filing History:

Nippon Oil Corporation
Other
4. 2 out of 149
Hitachi Powdered Metals Co., Ltd.
5. 1 out of 2,464

where one patent can have more than one assignee
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