67 Utility and 2 Design Patents
#221 in Kawasaki
#4,090 in Japan
#21,649 in the World
rank by utility patentsForward Citations = 991
Company Filing History:

Ohi Seisakusho Co., Ltd.

4. 5 out of 831,952 patents
Other
5. 4 out of 52,568

where one patent can have more than one assignee
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