17 Utility Patents
#8,866 in Tokyo
#45,339 in Japan
#210,624 in the World
Forward Citations = 315
Company Filing History:

Ryoden Semiconductor System Engineering Corporation
Taiyo Sanso Co., Ltd.
4. 1 out of 832,575 patents
Other
5. 1 out of 3,596

where one patent can have more than one assignee
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