Titan Kogyo Kabushiki Kaisha

Tomoko Yoshimi

Takafumi Tanaka

Takayasu Tanaka

Makoto Komatsu

Takeshi Izumi

Takashi Sakuma

Nobuyuki Hashimoto

Toshimasa Seki

Hidenori Ishioka

Ayaka Ando

Hiroaki Uchida

Shigeru Nagaoka

Wataru Mino

Toru Kumagai

Toshiyuki Koga

Provided is a charge-adjustment powder having an excellent ability to regulate a charging property on a surface of a target to be charge-adjusted within a certain range, and to maintain the applied charge. The charge-adjustment powder is formed with particles having titanium-niobium oxide on at least a part of a surface of a core, and the content of an alkali metal is set to be 20.0 mmol/kg or less based on the whole.

Charge-adjustment powder having excellent ability to maintain applied charge, and method of manufacturing the same

Provided are a cobalt ion adsorption material which has a large adsorption capacity and which tends not to generate fine powder, and a method for producing the same. This cobalt ion adsorption material is a powder with a particle diameter of 100-1,000 μm, and contains 0.3-8.0 parts by mass of a binder constituted of a water-insoluble metal oxide or metal hydroxide fine particles with respect to 100 parts by mass of a cobalt adsorption main agent constituted of potassium hydrogen dititanate hydrate.

Cobalt ion adsorption material and method for producing same

A powder which is composed of particles that are mainly composed of calcium titanate having a perovskite crystal structure, and primary particles of which have a generally spherical shape and an average particle diameter within the range of from 20 nm to 100 nm (inclusive). This powder is produced by a method which comprises: the production of calcium titanate by subjecting a mixed liquid that contains a sugar, an alkali, a water-soluble compound containing calcium, and a compound which is obtained by deflocculating a hydrolysis product of a titanium compound with use of a monobasic acid to a high-pressure liquid-phase reaction that includes heating to a temperature of from 100° ° C. to 270° C. (inclusive),; and a subsequent calcium removal treatment.

Calcium titanate powder, method for producing same and external toner additive for electrophotography

Provided is a particulate alkaline earth metal ion adsorbent having a large adsorption capacity. The particulate alkaline earth metal ion adsorbent comprising: a potassium hydrogen dititanate hydrate represented by a chemical formula KHO&#xb7;2TiO&#xb7;nHO, wherein x is 0.5 or more and 1.3 or less, and n is greater than 0; and no binder, wherein the particulate alkaline earth metal ion adsorbent has a particle size range of 150 &#x3bc;m or more and 1000 &#x3bc;m or less.

Alkaline earth metal ion adsorbent, and production method of the same, and alkaline earth metal ion-containing liquid treatment apparatus

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Yamaguchi, Japan

Tomoko Yoshimi