8 Utility Patents
#100 in Nasushiobara
#107,031 in Japan
#518,164 in the World
Forward Citations = 45
Company Filing History:


Canon Electron Tubes & Devices Co., Ltd.
4. 1 out of 2
Toshiba Electron Tube & Devices Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today