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Dive into the research topics where Yasuhiko Uehara is active.

Publication


Featured researches published by Yasuhiko Uehara.


Journal of Luminescence | 1997

Reduction of degradation of Y3(Al,Ga)5O12:Tb phosphors by Sc doping

Hidetsugu Matsukiyo; Hisashi Toyama; Yasuhiko Uehara; Hajime Yamamoto

Copyright (c) 1997 Elsevier Science B.V. All rights reserved.It was found that introduction of Sc into Y 3 (Al,Ga) 5 O 12 :Tb is effective for reducing the phosphor degradation by electron bombardment. Thermoluminescence (TL) measurements show that no new TL active traps related to Sc are formed in the phosphor lattice. It was also observed that the TL intensity decreases with an increase in Sc concentration. It is proposed that this effect of the Sc doping is related to the more closed packing of the lattice.


Archive | 1992

Phosphor and cathode-ray tube using the same

Hidetsugu Matsukiyo; Teruki Suzuki; Hajime Yamamoto; Yasuhiko Uehara; Yasukazu Morita; Yoshihiro Koseki; Hiromichi Yamada; Shigeo Fujino; Takashi Hase; Tsutomu Yamada; Susumu Omatoi


Archive | 1995

Green-emitting phosphor and cathode-ray tube employing it

Tsutomu Yamada; Yasuo Oguri; Takashi Hase; Yasuhiko Uehara; Hisashi Toyama


Archive | 1988

Projection cathode-ray tube with green emitting phosphor screen

Yasukazu Morita; Yasuhiko Uehara


Journal of The Electrochemical Society | 1987

An Orange‐Emitting Phosphor (Ca, Mg)S:Mn, for Terminal Display Tubes

Hajime Yamamoto; Kohichi Megumi; Hiroyuki Kasano; Osam Kanehisa; Yasuhiko Uehara; Yasukazu Morita


Journal of The Electrochemical Society | 1987

Hydrolysis Reactions of CaAs Phosphors

Teruki Suzuki; Hajime Yamamoto; Kohichi Megumi; Osam Kanehisa; Yasukazu Morita; Naomitsu Watanabe; Yasuhiko Uehara


Archive | 1977

Green emitting fluorescent composition and color television cathode ray tube using the same

Yasuhiko Uehara; Susumu Ohmatoi


Archive | 1977

Process for the production of color television picture tubes

Koichi Mitobe; Yasuhiko Uehara


Archive | 1995

Field-sequential projection display

Masanori Ogino; Tetsuo Asano; Yasuhiko Uehara


Archive | 1994

Green light-emitting fluorescent material and cathode-ray tube produced by using the material

Takashi Hase; Yasuo Oguri; Hisashi Toyama; Yasuhiko Uehara; Tsutomu Yamada; 保彦 上原; 久 外山; 康生 小栗; 山田 勉; 堯 長谷

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