Another contender was General Electric's Penetron, which used three stacked layers of phosphor and attempted to change the power of the electron beam to write to the correct one.
The White Shadow | Robotech: The Shadow Chronicles | DJ Shadow | The Shadow | Shadow Cabinet | The Mask of Zorro | Batman: Shadow of the Bat | Moonlight Shadow | mask | The Shadow Out of Time | Storm Shadow | The Shadow Line | Shadow Project | Shadow Leader of the House of Commons | Shadow Chancellor of the Exchequer | Mask | Man in the Iron Mask | The Shadow over Innsmouth | The Legend of Zelda: Majora's Mask | Shadow Theatre | Shadow Raiders | Shadow on the Wall | Shadow of the Thin Man | Shadow Home Secretary | Pandemonium Shadow Show | In the Heart of the Beast Puppet and Mask Theatre | Golden Mask | Ender's Shadow | Black Mask | Vincent Black Shadow |
Masaru Ibuka refused, apparently displaying an intense personal feeling that the shadow mask design was fundamentally flawed.
Masaru Ibuka, Sony's president and co-founder, steadfastly refused to develop a system based on RCA's shadow mask design, which he considered technically deficient.