16 Utility and 1 Design Patents
#4,465 in Kanagawa
#49,095 in Japan
#228,090 in the World
rank by utility patentsForward Citations = 440
Company Filing History:
Tokyo Ohka Kogyo Co., Ltd.
Tokyo Ohka Kogyo Kabushiki Kaisha
Tokyo Denshi Kagaku Kabushiki Kaisha
4. 2 out of 7
Tokyo Denshi Kagaku Co., Ltd.
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