41 Utility Patents
#2,422 in Tokyo
#11,121 in Japan
#53,117 in the World
Forward Citations = 396
Company Filing History:



4. 5 out of 34
Shibaura Institute of Technology
5. 5 out of 475
Denki Kagaku Kogyo Kabushiki Kaisha
where one patent can have more than one assignee
Get your Inventor Badge Today