Dainichiseika Color & Chemicals Mfg. Co., Ltd.

Ukima Colour & Chemicals Mfg. Co., Ltd.

Hiroyoshi Terada

Akira Nishio

Michiei Nakamura

Shigeru Sakamoto

Mitsuo Yamazaki

Toru Kawakami

Keiji Nakajima

Kenichi Yamane

Masanori Takakamo

Takamitsu Shinoda

Motohisa Maruyama

Kanako Sato

Toshiaki Anzai

To provide a Cu&#x2014;Mn&#x2014;Fe-based complex inorganic oxide black pigment having a more vivid bluish hue than a Cu&#x2014;Mn&#x2014;Fe-based complex inorganic oxide black pigment obtained by a conventional wet method. A Cu&#x2014;Mn&#x2014;Fe-based complex inorganic oxide black pigment having a more vivid bluish hue is disclosed. The complex inorganic oxide black pigment has a spinel structure composed of oxides of copper, manganese and iron as main constituent metals, the molar ratio of copper/manganese/iron is in a range of 3 to 8/5 to 10/1, at least one divalent metal element other than the main constituent metals has been introduced, and the molar ratio of (copper+the divalent metal element)/(manganese+iron) is in a range of 1 to 1.6/2. A production process of the black pigment is also disclosed.

Composite oxide black pigment and method for producing same

A composition for a black matrix is disclosed. The composition is composed of a black pigment and a binder for the pigment. The black pigment is a compound-oxide black pigment, which comprises at least two metal oxides and has a spinel or inverse-spinel crystalline structure. Also discloses are a process for the formation of a black matrix from the composition and an article provided with a black matrix so formed.

Composition for black matrix, fabrication process of black matrix and

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Tokyo, Japan

Hiroyoshi Terada