22 Utility and 4 Design Patents
#6,359 in Tokyo
#31,787 in Japan
#147,259 in the World
rank by utility patentsForward Citations = 276
Company Filing History:

Oki Electric Industry Co., Ltd.
Mitsubishi Kasei Corporation
4. 1 out of 27,375

5. 1 out of 18
Nihon Kaiheiki Industrial Company, Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today