Showa Denko K.k.

Seiko Epson Corporation

Showa Denko Kabushiki Kaisha

Toshio Koshikawa

Hirotoshi Kamata

Shuichi Sugita

Takeo Watanabe

Kazuhiko Ooga

Nobuo Uotani

Kiyohiko Takemoto

Seiji Mochizuki

Hiroshi Takahashi

Katsura Ito

Yasunori Yamazaki

Yuji Itoh

Seiichi Tanabe

Toshimasa Mori

Kasumi Nakamura

Kenichi Nakamura

A titanium dioxide slurry for ink jet ink, which comprises water and surface-treated titanium dioxide particles dispersed in the water, the surface treatment being a treatment with an inorganic phosphoric acid compound. Also disclosed is an ink comprising the titanium dioxide slurry.

Ink jet white ink and titanium dioxide slurry therefor

Photocurable composition

An additive for inkjet printing, comprising a stabilized ascorbic acid derivative. Also disclosed are a recording solution, a method for preventing discoloration and fading of an image, and a recording sheet, each using the additive. The color change of an image can be prevented by incorporating the stabilized ascorbic acid derivative into an inkjet-printed image.

Additive for inkjet printing, recording solution, method for preventing discoloration and fading of image, and recording sheet

Photocurable paint composition for road markings

Color reversion of photocured products which have been photocured with cationic dyes and quaternary organo borates can be notably suppressed by addition of phenolic compounds, aromatic thiol compounds, amine compounds and/or phosphorous compounds.

Photocurable composition and color reversion preventing method

A photocurable composition comprising an ultraviolet radical polymerization initiator, a cationic dye with absorptions in the visible light region, a quaternary boron salt and optionally a polymerization accelerator, is irradiated with ultraviolet light and visible light either simultaneously or separately, to achieve adequate hardening in air of both the surface and the interior of the cured product, and to provide a cured product with an excellent appearance and without production of coloring substances derived from the polymerization initiator.

Photocurable composition and curing process therefor

Growing community of inventors

Chiba, Japan

Toshio Koshikawa