6 Utility Patents
#25,163 in Tokyo
#139,408 in Japan
#694,683 in the World
Forward Citations = 59
Company Filing History:
Jse Corporation


4. 1 out of 2
Riken Keiko Co., Ltd.
5. 1 out of 1
Katsuhiko Watanabe Holdings Ltd.
where one patent can have more than one assignee
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