7 Utility Patents
#172 in Sakura
#121,533 in Japan
#596,497 in the World
Forward Citations = 33
Company Filing History:
Yachiyo Industry Co., Ltd.
Nishikawa Rubber Co., Ltd.

4. 1 out of 12
Yachiyo Kogyo Kabushiki Kaisha
5. 1 out of 21,756

where one patent can have more than one assignee
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