Fujifilm Corporation

Fuji Photo Film Company, Limited

Hideki Maeta

Tadahisa Sato

Yuki Shimizu

Naoto Ohshima

Hirotomo Sasaki

Yasuhiro Shimada

Jun Tanabe

Hirokazu Kyota

Yoshio Shimura

Masaki Okazaki

Ken Kawata

Minoru Sakai

Nobuaki Inoue

Toshiya Kojima

Hiroyuki Suzuki

Hideyuki Nishikawa

Toshihide Ezoe

Takahiro Goto

Tsutomu Takatsuka

Naoki Kusunoki

Masayuki Negoro

Masaru Takasaki

Koh Kamada

A method of producing a dispersion of organic fine particles having a volume average particle diameter (Mv) of 10 nm to 100 nm, which has the step of: subjecting an organic fine particle dispersion liquid containing a high molecular compound to heating treatment under flowing through a channel.

Method of producing an organic fine particle dispersion, organic fine particle dispersion obtained by the same, and ink-jet recording ink and paint using the dispersion

An organic-pigment aqueous dispersion, containing a pigment at a concentration of 6 to 30 mass %, and having a haze of 0.3 to 10%, as determined by enclosing the dispersion in a transparent glass cell of optical distance 0.2 mm and analyzing with integrating-sphere photoelectric photometry; and a colored coating composition using the same.

Organic-pigment aqueous dispersion, method of producing the same, and colored coating composition and coated article using the same

A method of producing fine particles of metal complex pigment, containing the step of reacting a solution of an alkali metal salt of a ligand that constitutes the metal complex with a solution of salts of a metal that constitutes the metal complex, in the course of a laminar flow in a channel; and a method of producing fine particles of metal complex pigment, containing the step of bringing a solution of an alkali metal salt of a ligand that constitutes the metal complex and a solution of salts of a metal that constitutes the metal complex into contact with each other in a channel having an equivalent diameter of 1 mm or less to form a liquid flow.

Method of producing fine particles of metal complex pigment and dispersion containing fine particles of metal complex pigment obtained by the method

The image forming apparatus includes a recording head which ejects droplets of a liquid onto a recording medium, the liquid containing fine particles of an organic pigment manufactured by the steps of: flowing a solution of an organic pigment dissolved in an alkaline or acidic aqueous medium through a channel which provides a laminar flow; and changing a hydrogen ion exponent (pH) of the solution in a course of the laminar flow.

Image forming apparatus and droplet ejection control method

The inkjet recording apparatus includes: a recording head including nozzles which discharge droplets of ink onto a recording medium for printing, the ink containing fine particles of an organic pigment manufactured by the steps of: flowing a solution of an organic pigment dissolved in an alkaline or acidic aqueous medium through a channel which provides a laminar flow; and changing a hydrogen ion exponent (pH) of the solution in a course of the laminar flow; a computing device which computes a non-operational time period for one of the nozzles; a calculating device which calculates a predicted non-operational time period until a next operation of the one of the nozzles; and a preliminary discharge control device which performs control whereby preliminary discharge of the one of the nozzles is carried out if a total of the non-operational time period and the predicted non-operational time period exceeds a reference time period.

Inkjet recording apparatus

A method of producing an organic pigment dispersion liquid, which has the steps of: providing an alkaline or acidic solution with an organic pigment dissolved therein and an aqueous medium, wherein a polymerizable compound is contained in at least one of the organic pigment solution and the aqueous medium; mixing the organic pigment solution and the aqueous medium; and thereby forming the pigment as fine particles; then polymerizing the polymerizable compound to form a polymer immobile from the pigment fine particles.

Method or producing an organic pigment dispersion liquid and organic pigment fine particles obtained by the method

A method of producing a dispersion of a pigment, comprising: bringing a solution in which an organic pigment is dissolved, and an aqueous medium, into contact with each other in a channel having an equivalent diameter of 1 mm or less, thereby making the pigment into a fine particle thereof, wherein at least one of the solution and the aqueous medium comprises at least one anionic dispersing agent.

Organic pigment fine-particle, and method of producing the same

A silver halide emulsion which exhibits high sensitivity, high contrast, little sensitivity variation with humidity conditions at the time of exposure, and excellent reciprocity law properties at high illumination intensities. Also, a method of preparing the emulsion in a stable manner, and a silver halide color photographic photosensitive material and an image forming method that use the emulsion. The emulsion includes a mesoionic compound having a thiolate structure or a protonated thiolate structure, and the emulsion is sensitized by an Au (III) compound. The emulsion preferably contains an oxidatively dimerized form of a mesoionic compound having a thiolate structure, and a silver chloride content of at least 90 mol %.

Silver halide emulsion, method of preparing the same, and silver halide color photographic photosensitive material and image-forming method using the emulsion

A method of producing a fine particle of an organic pigment, containing the steps of: flowing a solution of an organic pigment dissolved in an alkaline or acidic aqueous medium, through a channel which provides a laminar flow; and changing a pH of the solution in the course of the laminar flow.

There is disclosed a 1H-pyrrole-[1,2-b][1,2,4]triazole compound represented by formula (I):wherein R is an alkyl group; R, R, R, R', R&#x2032;, and R&#x2032; each are a hydrogen atom or an alkyl group; Rand R, and R&#x2032; and R&#x2032; may bond together to form a ring, respectively; Ris a hydrogen atom or an alkyl group, and X is heterocyclic group, a substituted amino group, or an aryl group. The compound is useful as a photographic cyan coupler. There is also disclosed synthetic intermediates of the compound and a production method of the intermediates.

1H-1,2,4-triazole-5-yl-acetic ester compound

1H-pyrrolo-&lsqb;1,2-b&rsqb;&lsqb;1,2,4,&rsqb;triazole compound and its synthetic intermediate, and method of preparing a 1H-1,2,4-triazole-5-yl-acetic acid ester compound

Heat-developable photosensitive material

Disclosed are a liquid crystal display provided with an optical compensatory sheet comprising an optically anisotropic layer which has negative birefringence and comprises a polymer having a discotic structure in its molecule, and an optical compensatory sheet which comprises a transparent support, an orientation layer provided thereon and the optically anisotropic layer provided on the orientation layer. Further, a process for preparation of the optical compensatory sheet and a liquid crystal composition which is useful as material for preparing the optical compensatory sheet are also disclosed.

Growing community of inventors

Minami-ashigara, Japan

Hideki Maeta