Sakura Color Products Corporation

Matsushita Electric Industrial Co., Ltd.

Tomohiro Sawa

Yuki Yamamoto

Naoshi Murata

Yasuyuki Yoshimura

Hiroshi Inoue

Hidetoshi Fukuo

Takeshi Omatsu

Yasunori Nakatani

Akira Hochi

Takeshi Arakawa

Hiroyoshi Yamamoto

Norimasa Kurihara

Shigeki Yoneda

Kyoko Sano

Shoko Matsumoto

Kozaburo Fujita

Mitsuharu Kawasaki

Makoto Hirotani

In a water-based ink composition of the present invention, 2.5 to 50 wt % of white-colored resin particles and 2.5 to 50 wt % of film-forming resin emulsions in a solid content are contained with respect to the total amount of the ink, the ratio of said white-colored resin particles to film-forming resin emulsions is 1:0.2 to 1:3, and not less than 20 wt % of said white-colored resin particles and film-forming resin emulsions in a solid content are contained in total.

Water-based ink composition

The glittering ink composition of the present invention contains a glass flake pigment, a water-soluble resin, a water-soluble organic solvent and water as essential ingredients. The content of the glass flake pigment is 0.01-40% by weight relative to the total amount of the ink composition. Moreover, the ink composition contains a synthetic resin emulsion as a binder component for fixing the glass flake pigment to a handwriting or a coated film in 0.01-40% by weight in solids relative to the total amount of the ink composition. The synthetic resin emulsion has an anionic property or a nonionic property and its minimum film forming temperature is not higher than 20&#xb0; C.

Aqueous glittering ink composition

An electrodeless self-ballasted fluorescent lamp includes: a luminous bulbhaving a cavity portion; an induction coilinserted in the cavity portion; a ballastelectrically connected to the induction coil; and a base, wherein the luminous bulb, the ballastand the baseare configured as one unit. The luminous bulbincludes an approximately spherical outer tubeand an inner tube. At least the surface of the upper hemisphere of the outer tubeis coated with a silicone rubberhaving the property of transmitting light.

Electrodeless self-ballasted fluorescent lamp and electrodeless discharge lamp operating apparatus

A central core type marking pen which has an ink storage portion of a central core and a pen tip connected thereto, wherein the central core contains a water-based pigment-containing ink composition which contains a thickening agent and exhibits, at 20&#xb0; C., a viscosity of not less than 45 mPa&#xb7;s and not greater than 12 mPa&#xb7;s when a stress of 0.01 and a stress of 10 Pa are applied, respectively.

Water-based pigment-containing ink composition for central core type marking pen

An aqueous glittering ink composition whose viscosity ranges from about 1,000 to about 10,000 mPa&#xb7;s, (measured by an ELD-type viscometer: 3&#xb0; R 14 cone, 0.5 rpm, at the temperature of 20&#xb0; C.) comprising

The glittering ink of the present invention contacts scaly glittering particles, a water-soluble resin, a water-soluble organic solvent, colorant and water. The said scaly glittering particles have a median diameter of at least 10 &mgr;m, a ratio of smoothness on the particle surface to a median diameter of not greater than 0.011, and a surface coating ratio of the said colorant in a written mark of not greater than 80% in a state of a dried written mark. In addition, the aqueous glittering ink of the present invention has the thixotropy index (T.I. value) of not less than 1.3, represented by the ratio of V0.5 to V1.0 (V0.5/V1.0), wherein V0.5 is the viscosity with the rotation speed of 0.5 rpm and V1.0 is the viscosity with the rotation speed of 1.0 rpm when the ink is measured by an ELD-typed viscometer (3&deg; R14 cone, at the temperature of 20&deg; C.) and the ink has the V0.5, the viscosity with the rotation speed of 0.5 rpm, of 1000&tilde;15000 mPa&middot;s.

Aqueous glittering ink

The glittering ink composition of the present invention contains a glass flake pigment, a water-soluble resin, a water-soluble organic solvent and water as essential ingredients. The content of the glass flake pigment is 0.01-40% by weight relative to the total amount of the ink composition. Moreover, the ink composition contains a synthetic resin emulsion as a binder component for fixing the glass flake pigment to a handwriting or a coated film in 0.01-40% by weight in solids relative to the total amount of the ink composition. The synthetic resin emulsion has an anionic property or a nonionic property and its minimum film forming temperature is not higher than 20&deg; C.

An aqueous metallic ink composition comprising an aluminum powder pigment, a colorant, a polysaccharide, water, a water-soluble solvent and a material selected from a polyvinyl pyrrolidone, a polyethylene oxide or a compound thereof.

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Osaka, Japan

Tomohiro Sawa