12 Utility and 1 Design Patents
#10 in Saga
#69,823 in Japan
#327,534 in the World
rank by utility patentsForward Citations = 270
Company Filing History:
Sumitomo Special Metals Co., Ltd.


4. 1 out of 7,939

5. 1 out of 900

where one patent can have more than one assignee
Get your Inventor Badge Today