11 Utility Patents
#412 in Tsukuba
#76,955 in Japan
#363,101 in the World
Forward Citations = 94
Company Filing History:

Ministry of International Trade & Industry

4. 1 out of 832,540 patents
Other
5. 1 out of 2
Tokyo Kokyu Rozai Co., Ltd.
where one patent can have more than one assignee
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