Hitachi Chemical Company, Ltd.

Hitachi Vehicle Energy, Ltd.

Naoki Kimura

Hiroyuki Tanaka

Seiji Tai

Takeshi Nojiri

Seikichi Tanno

Kazuya Satou

Kinya Aota

Toranosuke Ashizawa

Takuro Tsunaki

Ikuo Mukai

Kouichi Kajiwara

Keisuke Sawada

Fujio Hirano

Takenori Ishizu

Sho Saimaru

Yutaka Sato

Mitsuru Koseki

Yoshiyuki Horibe

Kiyoyuki Sekine

Mariko Shimamura

Ryuji Kono

Hideyuki Shibanuma

Hidemasa Kawai

Hajime Kakumaru

Kazuya Sato

Hideyasu Tsuiki

Eiji Fujita

Yumiko Wada

A lithium ion secondary battery is capable of improving the energy density and power density and excellent in high rate cycle characteristics applicable to hybrid cars, etc. The lithium ion secondary battery including a positive electrode of a lithium transition metal complex oxide, a negative electrode for absorbing/releasing lithium, and a non-aqueous electrolyte containing a lithium salt, in which the negative electrode has a negative electrode active material using a non-graphitizing carbon (spacing d(002) of 0.360 nm or more by XRD) and a graphitizing carbon (spacing d(002) of 0.339 nm or more and less than 0.360 nm by XRD) surface-modified at a thickness in a range from 10 nm to 100 nm in admixture, comprising the non-graphitizing carbon and the graphitizing carbon at a ratio in the range of 90 to 50 wt % :10 to 50 wt % and, further, graphitizing carbon having a grain size larger than that of the non-graphitizing carbon is used.

Lithium ion secondary battery

Battery

Disclosed are a phosphor pattern which comprises a substrate having unevenness and a phosphor layer formed on the inner surface of a concave portion of the substrate, wherein the phosphor pattern thickness ratio (x)/(y) satisfies a range of 0.1 to 1.5, where when the length from the bottom of the concave portion to the top of a convex portion is L (&mgr;m), (x) is a thickness of the phosphor pattern formed on an uneven wall surface at a position of 0.9&times;L from the bottom of the concave portion toward the top of the convex portion, and (y) is a thickness of the phosphor pattern formed on the uneven wall surface at a position of 0.4&times;L from the bottom of the concave portion toward the top of the convex portion, and processes for preparing the same.

Photosensitive element for preparing a phosphor pattern

A phosphor pattern for a field emission display panel (FED) is provided. The phosphor pattern is formed by a process whichh comprises the steps of: (I) forming (A) a photosensitive resin composition layer containing a phosphor on a substrate to which a conductive layer is formed; (II) selectively irradiating active light to (A) the photosensitive resin composition layer containing a phosphor, for forming a pattern; (III) selectively removing (A) the photosensitive resin composition layer to which active light has been selectively irradiated by development, to form the pattern; and (IV) calcining the pattern to remove an unnecessary portion, to form the phosphor pattern. Also provided ar this process for forming the phosphor pattern, a photosensitive element for a FED and a field emission display panel. In forming the layer on the substrate, the photosensitive resin composition layer can be provided as a layer of a photosensitive element, and the element provided on the substrate such that the layer contacts the substrate.

PROCESS FOR PREPARING PHOSPHOR PATTERN FOR FIELD EMISSION DISPLAY PANEL, PHOTOSENSITIVE ELEMENT FOR FIELD EMISSION DISPLAY PANEL, PHOSPHOR PATTERN FOR FIELD EMISSION DISPLAY PANEL AND FIELD DISPLAY PANEL

FLUORESCENT PATTERN, PROCESS FOR PREPARING THE SAME, ORGANIC ALKALI DEVELOPING SOLUTION FOR FORMING THE SAME, EMULSION DEVELOPING SOLUTION FOR FORMING THE SAME AND BACK PLATE FOR PLASMA DISPLAY USING THE SAME

Phosphor pattern, processes for preparing the same and photosensitive element to be used for the same

Fluorescent pattern, process for preparing the same, organic alkali developing solution for forming the same, emulsion developing solution for forming the same and back plate for plasma display using the same

Process for preparing phosphor pattern, phosphor pattern prepared the same and back plate for plasma display panel

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Hitachi, Japan

Naoki Kimura