4 Utility and 2 Design Patents
#33,871 in Tokyo
#193,190 in Japan
rank by utility patentsForward Citations = 65
Company Filing History:

Yokogawa Test & Measurement Corporation
Shikoku Kakoki Co., Ltd.
4. 1 out of 832,540 patents
Other
5. 1 out of 7,932

where one patent can have more than one assignee
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