92 Utility and 2 Design Patents
#1 in Sukagawa
#1,913 in Japan
#11,413 in the World
rank by utility patentsForward Citations = 241
Company Filing History:
Kantatsu Co., Ltd.
Tokyo Visionary Optics Co., Ltd.
Dart Industries Inc.
4. 1 out of 1
Kantatsu., Ltd.
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