Canon Kabushiki Kaisha

Taiho Industries Co., Ltd.

Cannon Kabushiki Kaisha

Hidemasa Mouri

Michiaki Tobita

Naonobu Eto

Mamoru Sakaki

Ryuichi Arai

Shigeo Toganoh

Takashi Akiya

Masahiko Ishida

Masahiko Higuma

Shunzo Kono

Takao Yamauchi

Akio Tajima

Shunzo Kouno

Tadao Nakaya

Takahiro Mori

Kazuo Iwata

Kenji Hasegawa

Takaaki Katakura

Kousuke Okura

Minoru Nakamuta

Toshihiro Kodera

Hiromi Shibasaki

Kosuke Ohkura

A coating agent for a base for ink-jet printing comprises an alumina dispersion containing dispersed alumina and aluminium nitrate dissolved in an aqueous dispersing medium, and a binder. This coating agent and the coated base material are free of irritating odor, contain alumina well dispersed therein, and provide printed images on the inkjet-printing materials, which images are excellent in the color density, resistance to water, resistance to light and color definition.

Inkjet-printing materials and coating agents therefor

The objective of this invention is to provide fluorescent compounds comprising a naphthalene skeleton, an electron donating group substituted at the 2- or 1-position of the naphthalene skeleton, and an electron attractive group substituted at the 6- or 4-position of the skeleton. The fluorescent compound of this invention is capable of emitting visible light having a desired color by choosing an appropriate combination of the electron donating group A, which has an electron-pushing function, and the electron attractive group B, which has an electron-pulling function.

Fluorescent substances

The object of this invention is to provide an illuminant, which can easily be produced at low cost. This invention is a carbazole derivative luminescent compound having a carbazole ring skeleton, to the nitrogen atom of which is attached an electron-donating group, and to the carbon atom of which is attached an electron-attracting group at the third position to the nitrogen atom.

Fluorescent carbazole derivative

A method for collecting medical test specimens which includes placing a sample fluid in a cup container having an outlet and pressurization mechanism to increase the internal air pressure, disposing a specimen collection film so as to provide an airtight seal of the cup container outlet, and using the pressurization mechanism to increase the air pressure in the cup so as to force the sample fluid out through the outlet and capture specimens in the sample fluid on the film.

Apparatus for collecting medical test specimens

A recording medium comprising a substrate and a non-porous ink receiving layer is provided. The ink receiving layer contains a water-insoluble polymer containing a cationic resin. The recording medium may be employed for recording by attaching droplets of a recording liquid thereon.

Recording medium with non-porous ink-receiving layer and method of use

A recording member comprises a condensation product of an isocyanate compound and a polyether-polyol. A recording member comprises a substrated and an ink-receiving layer formed thereon in which a condensation product of an isocyanate compound and a polyether-polyol is contained. A recording member comprises a condensation product of an isocyanate compound and a polyether-polyol as main component and is in the form of a film.

Recording member

Recording medium with non-porous ink-receiving layer

There are disclosed an ink-receiving composite polymer material wherein a nonvolatile organic compound is caused to penetrate into and diffuse through an ink-receiving polymer forming, from any one surface side thereof, and a recording medium for ink-jet recording wherein a nonvolatile organic compound is caused to penetrate into and diffuse through an ink-receiving layer, from the surface thereof.

Ink-receiving composite polymer material

A recording medium comprises an ink receiving layer provided on a substrate, wherein said ink receiving layer contains a cationically modified product of polyvinyl alcohol and a water soluble polymer having no active hydrogen.

Recording medium

A light-transmissive recording medium comprises a coating layer which has a surface electric resistance not more than 10.sup.14 .OMEGA./cm.sup.2, and has property of trapping a recording agent which is soluble and/or dispersible in an aqueous medium.

Light-transmissive recording medium and image formation method using the

A light-transmissive recording member comprises a light-transmissive substrate and an ink acceptor provided on said substrate, wherein powdery particles are imparted onto the surface of said ink acceptor.

Recording member and recording method using the same

A recording medium for recording with aqueous ink without direct contact of recording means therewith comprises an under layer and an upper layer provided thereon. The upper layer is formed of substantially water-resistant resin and is sufficiently thin to provide immediate water and air permeability and the under layer is more hydrophilic than the upper layer. There is also provided a recording process employing aqueous ink droplets and a recording medium as mentioned above.

Growing community of inventors

Yokohama, Japan

Hidemasa Mouri