Titan Kogyo Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Toshimasa Seki

Nobuyuki Hashimoto

Kiyoshi Nakahara

Hidenori Ishioka

Takafumi Tanaka

Tomoko Yoshimi

Takayasu Tanaka

Wataru Mino

Norio Takami

Hiroki Inagaki

Yasuhiro Harada

Makoto Komatsu

Takeshi Izumi

Takashi Sakuma

Toshiyuki Koga

Toru Kumagai

Takuya Iwasaki

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

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

The present invention provides a particulate cobalt ion adsorbent which has a high adsorption capacity. A particulate cobalt ion adsorbent which contains potassium hydrogen dititanate hydrate represented by chemical formula KHO.2TiO.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 cobalt ion adsorbent has a particle size range of 150 μm or more and 1000 μm or less.

Cobalt ion adsorbent, method for producing same and treatment apparatus for cobalt ion-containing liquid

An electrode active material comprising in major proportions a monoclinic titanium-niobium composite oxide represented by the formula TiNbO, wherein X is from 1.90 or more to less than 2.00.

Titanium-niobium composite oxide-based electrode active material and lithium secondary battery using the same

The present invention provides a novel titanium-based composite oxide being usable as an electrode material for a lithium secondary battery and having a high capacity and an excellent cycle stability, a method for producing the same and a lithium secondary battery using the titanium-based composite oxide. Disclosed is a compound obtained by compositing titanium oxide with elements other than titanium, specifically a titanium-based composite oxide wherein the relevant chemical formula is TiMO, M is the element Nb or the element P, or a combination of these two elements in an optional ratio therebetween, x is such that 0&#x3c;x&#x3c;0.17, y is such that 1.8&#x2266;y&#x2266;2.1, x is the sum of Nb and P when M is a combination of the element Nb and the element P, and the present invention provides a lithium secondary battery using as an electrode the titanium-based composite oxide.

Titanium oxide-based compound for electrode and lithium secondary battery using the same

For the purpose of increasing the electric capacity of lithium secondary batteries comprising titanium-based negative electrode materials, the present invention aims to produce a titanium oxide compound whose crystal structure, crystallite size, specific surface area and primary particle size are controlled, and to provide a lithium secondary battery comprising such a compound. The present invention produces a lithium secondary battery by using, as an electrode active material, a titanium oxide compound for use in an electrode, which is represented by TiO.(HO)a.(AO)b (wherein A is Na or K, a is 0&#x3c;a=1, and b is 0&#x3c;b=0.1) and has a main peak at 2&#x3b8;=20&#xb0; to 30&#xb0; and a minor peak at 2&#x3b8;=45&#xb0; to 55&#xb0; in its X-ray diffraction pattern, wherein the crystallite size determined from the main peak ranges from 40 &#x212b; more to 500 &#x212b; or less.

Titanium oxide compound for use in electrode and lithium secondary battery comprising the same

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Ube, Japan

Toshimasa Seki