30 Utility Patents
#4,208 in Tokyo
#19,766 in Japan
#92,263 in the World
Forward Citations = 739
Company Filing History:
Other
Kabushiki Kaisha Watanabe Shoko
Wacom R&d Corporation
4. 4 out of 1,708

5. 4 out of 4,048
Alps Electric Co., Ltd.
where one patent can have more than one assignee
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