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Featured researches published by Yasuhisa Ohtake.


Displays | 1988

Characteristics of chromium-added Invar with regard to shadow masks for high-resolution colour television tubes

Michihiko Inaba; Michio Sato; Emiko Higashinakagawa; Yasuhisa Ohtake

Abstract The characteristics of chromium-added Invar for use in shadow masks were studied, and the following advantages found for this metal. (1) The yield strength of the alloy decreases with increased added chromium, up to 5 wt%, on annealing, resulting in good formability. (2) The crystal orientation was textured to the {100} plane by hard cold rolling and annealing to allow easy etching. (3) The adherence of oxide to metal is better than that on Invar. (4) Magnetic properties caused no problem for use as a shadow mask.


Archive | 2000

Shadow mask for color cathode ray tube

Yasuhisa Ohtake; Seiji Sago; Yasushi Magaki


Archive | 1984

Method of manufacturing a shadow mask for a color cathode ray tube

Yasuhisa Ohtake; Hiroshi Tanaka; Koichiro Patent Division Toshiba Corp. Oka


Archive | 1994

Shadow mask plate material and shadow mask

Koichi Teshima; Yoshinori Fujimori; Shin-ichi Nakamura; Masayuki Fukuda; Michihiko Inaba; Emiko Higashinakagawa; Yasuhisa Ohtake; Eiichi Akiyoshi


Archive | 1995

Color cathode ray tube and method of manufacturing the same

Sachiko Muramatsu; Yasuhisa Ohtake


Archive | 1987

Shadow mask, and method of manufacturing the same

Emiko Higashinakagawa; Yasuhisa Ohtake; Masaharu Kanto; Fumio Mori


Archive | 1984

FRONT END ELEMENTS FOR A COLOUR CATHODE RAY TUBE

Michihiko Inaba; Masaharu Kanto; Satoshi Shikanai; Yasuhisa Ohtake


Archive | 1985

Material for in-tube components and method of manufacturing it

Michihiko Inaba; Tetsuo Fujiwara; Masaharu Kanto; Yasuhisa Ohtake


Archive | 1995

Color cathode ray tube and method of manufacturing shadow mask

Yasuhisa Ohtake; Seiji Sago; Mitsuaki Yamazaki; Sachiko Muramatsu


Archive | 1995

Shadow mask for color cathode ray tube, shadow mask printing negative plate used for manufacture of the shadow mask, and method and manufacturing the negative plate

Yasuhisa Ohtake; Seiji Sago; Yasushi Magaki

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