16 Utility Patents
#9,520 in Tokyo
#49,095 in Japan
#228,090 in the World
Forward Citations = 63
Company Filing History:
Sumco Corporation
Sumitomo Mitsubishi Silicon Corporation
Koike Sanso Kogyo Co., Ltd.
4. 2 out of 929
Sumitomo Metal Industries, Inc.
5. 1 out of 1
Enidine Co., Ltd.
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