23 Utility Patents
#8 in Hikari
#29,873 in Japan
#138,436 in the World
Forward Citations = 47
Company Filing History:
Nippon Steel & Sumikin Stainless Steel Corporation
Nippon Steel Corporation
Hitachi Industrial Equipment Systems Co., Ltd.
4. 2 out of 27
Nippon Steel Stainless Steel Corporation
5. 1 out of 1
Sumikin Stainless Steel Corporation
where one patent can have more than one assignee
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