Sony Corporation

Akio Ohgoshi

Akira Nakayama

Shoichi Muramoto

Yuzuru Yanagisawa

Susumu Nishigaki

Yoshihiro Tsukamura

Takehisa Natori

Akira Yamanaka

A grid structure for a color cathode ray tube comprises a substantially rectangular, one-piece frame consisting of a pair of first opposed frame portions and a pair of second opposed frame portions orthogonally related to the first frame portions and being integral with the latter at ends thereof, and grid elements secured to the first frame portions and extending therebetween generally parallel to the second frame portions in a longitudinally stressed condition, the second frame portions having at least recesses therein for enhancing the resilient bending thereof under loads applied to the first frame portions in directions urging the latter toward each other.

Grid structure for color cathode ray tube

A flame detecting apparatus comprises a flame detecting electrode and an auxiliary electrode both of which are in use disposed in a flame, and means to bias the auxiliary electrode to a DC potential different from that of the detecting electrode.

Flame detecting apparatus

An indicator display tube in which indicator electrode units, each consisting of anode and cathode segments, lie in the same plane and in which all of the cathode segments are simultaneously energized and the anode electrodes are energized on a time sequential basis in such a manner that only the indicator electrode unit having its anode electrodes energized will glow at a particular time. The cathode segments of each indicator unit are connected in parallel which substantially reduces the number of leads to the display tube over conventional indicators which require a separate lead for energizing each of the cathode segments. The indicator display tube has means for preventing accidental discharge of adjacent indicator electrode units which would produce erroneous message displays.

Indicator display tube

Gas discharge display tube with barrier means for prevention of ion

Growing community of inventors

Akira Nakayama, undefined

Akio Ohgoshi