Ricoh Company, Ltd.

Shinya Seno

Tsutomu Maekawa

Takao Hiraoka

Shinji Aoki

Tamotsu Aruga

Soh Noguchi

Noriyasu Takeuchi

Masayuki Koyano

Eiji Noda

Toshihiro Kanematsu

Masahiro Masuzawa

Masaru Ohgaki

Okitoshi Kimura

Hisayoshi Ohshima

Tomoko Hasegawa

Michihiko Namba

Toshiharu Hatakeyama

Nobuyuki Satoh

Hiroshi Gotou

Naohiro Toda

Yuta Nakamura

Akihiko Gotoh

Hiromi Sakaguchi

Takuya Fujita

Naoto Shimura

Tetsuto Ueda

Kenichi Taguma

Shosuke Aoai

Yoshiaki Masuda

Yukie Inoue

Yoshimi Nemoto

Shohsuke Aoai

Masahira Masuzawa

A device for fabricating a solid freeform object includes a stage that rotates, a discharging device disposed over the stage and includes a discharging head each having one or more nozzles, the discharging head for discharging a curing composition to the stage and an exposing device disposed over the stage that exposes the stage to active energy, wherein the distance between the stage and the discharging device is variable and the distance between the stage and the exposing device is variable, wherein the shorter direction of the discharging head is perpendicular to the direction from the center of rotation of the stage toward the peripheral of the stage, wherein the number of the nozzles along the shorter direction increases in the direction from the center of rotation of the stage toward the peripheral of the stage.

Device for fabricating solid freeform object and method of fabricating solid freeform object

A liquid discharging device includes a carriage carrying a head configured to discharge a liquid onto a target, the liquid including an ink, the ink consisting water, an organic solvent, a coloring material, and a plurality of polysiloxane compounds, a driving unit configured to move the carriage and the target relatively to each other, a measuring unit configured to measure the distance between the carriage and the target, an image-capturing unit configured to capture a target image, and a setting unit configured to set a liquid discharging performance of the head based on a measurement result obtained by the measuring unit and the target image obtained by the image-capturing unit.

Liquid discharging device and liquid discharging method

To provide an image forming method, including applying a pre-treatment liquid on a recording medium including a substrate and a coating layer at least on one surface of the substrate, wherein the pre-treatment liquid is applied on a surface of the recording layer with the coating layer; drying the recording medium on which the pre-treatment liquid has been applied; and forming an image on the recording medium after drying by discharging a water-based ink by inkjet method, wherein the pre-treatment liquid includes a water-soluble cationic polymer, an ammonium salt of an organic acid and water, and wherein the water-based ink includes water and negatively charged colored particles including a colorant.

Image forming method, image forming apparatus, and recorded matter

A pre-treatment liquid includes a flocculant formed of a water-soluble cationic polymer obtained by copolymerizing an amine monomer and an epihalohydrin monomer; a surface conditioner; a surfactant; a water-soluble organic solvent; and water.

Pre-treatment liquid and image forming method

A disclosed method for producing a hollow cell array structure includes a first step of layering a deformable material capable of being plastically deformed under a predetermined condition on a first substrate, the first substrate having plural, mutually separated depressions in a surface thereof, such that the deformable material forms mutually isolated spaces in the corresponding depressions; a second step of expanding the spaces in the plural depressions by inducing a gas pressure of the spaces while extending the deformable material on the first substrate, such that plural hollow cells are simultaneously formed in correspondence to the plural depressions in predetermined directions; and a third step of selectively solidifying portions of the plural hollow cells by selectively applying ultraviolet rays thereto.

Hollow cell array structure and method and apparatus for producing hollow cell array structure

An active energy ray curing type composition contains (meth)acrylic acid ester; and polyether-modified polysiloxane, wherein (meth)acrylic acid ester comprises diethylene glycol dimethacrylate and alkoxy-modified (meth)acrylic acid ester.

Active energy ray curing type composition, container that accommodates composition, inkjet discharging device having container, and cured matter

To provide a method of producing a film, comprising: ejecting a liquid B over a liquid surface of an active energy ray-curable liquid as a liquid A by an inkjet process, according to a predetermined periodic signal; and subsequently applying an active energy ray to the liquid A and the liquid B so as to perform curing and obtain a film which comprises a pattern according to any one of (1) to (4) below, (1) a smooth pattern having a periodic amplitude based upon a trigonometric function, (2) a pattern having a periodic depression, (3) a pattern in the form of a periodic flat surface, and (4) a pattern having a periodic semicylindrical shape.

Method of producing film by inkjet process, and film

An ultraviolet crosslinking ink including a radically polymerizable and anionically polymerizable monomer; a photoradical generator; and a photo-base generator. An inkjet recording method including ejecting an ultraviolet crosslinking ink including a radically polymerizable and anionically polymerizable monomer; a photoradical generator; a photo-base generator; and a colorant, toward a surface of a recording material to form an ink image, and irradiating the ink image with ultraviolet light using a light emitting diode.

Ultraviolet crosslinking ink and inkjet recording method

An ultraviolet crosslinking inkjet ink including a radically polymerizable monomer including a methacrylate and no acrylate; and a photoradical generator. An ink cartridge including the ultraviolet crosslinking inkjet ink and a container containing the ultraviolet crosslinking inkjet ink therein. An image forming method including ejecting droplets of the ultraviolet crosslinking inkjet ink toward a recording material to form an image on the recording material; and irradiating the image with ultraviolet light to crosslink the image. An image forming apparatus including a recording device to eject droplets of the ultraviolet crosslinking inkjet ink toward a recording material to form an image on the recording material; and an ultraviolet irradiator to irradiate the image with ultraviolet light to crosslink the image.

Ultraviolet crosslinking inkjet ink, ink cartridge containing same, and image forming method and apparatus using same

A method of ink jet recording including forming an uncured first ink layer of a first ultraviolet curable ink A on a recording medium, forming an uncured second ink layer having a recording pattern inside the uncured first ink layer of the ink A by discharging a second ultraviolet curable ink B from an ink jet head, and curing the uncured first ink layer by irradiating the uncured first ink layer with ultraviolet light after forming the uncured second ink layer, wherein the ink A contains a photoradical generator and the ink B contains a photobase generator and a coloring agent.

Ink jet recording method

A disclosed method of manufacturing an image display element structure includes a coating step of coating a substrate surface including a plurality of recessed portions arranged at predetermined intervals, with a coating material that is plastic-deformable, in such a manner as to maintain spaces in the recessed portions; and an expanding step of forming gaps in the coating material coating the substrate surface by expanding gas in the spaces, wherein the gaps correspond to the recessed portions; and a peeling step of peeling off the coating material in which the gaps have been formed, from the substrate surface.

Manufacturing method and manufacturing apparatus for hollow structure of image display element

A display panel includes a sheet having first and second spaced apart surfaces defining a space therebetween and a plurality of partitions extending from the first surface to the second surface and dividing the space into a plurality of cells, wherein the thickness of each partition is in a range of 0.01 to 10 &#x3bc;m.

Display panel, method of manufacturing a display panel, and display unit

A display element includes a hollow structure. The hollow structure includes plural cells disposed in a plane, each having an opening in a first wall of the hollow structure, and a partition wall separating the adjacent cells. A solvent having one or more types of white particles and/or colored particles dispersed therein is disposed in the cells. The openings are sealed with a resin insoluble in the solvent. A thickness of the partition wall separating the adjacent cells is 0.01 &#x3bc;m or greater but not greater than 10 &#x3bc;m.

Display element, image display device, and image display system

A resin molding device, resin molding method and resin molded product capable of guiding a sink to an optional position to perform a precise molding. A resin molding metal mold includes a gate formed in the central part of a cavity, a stepped part increasing the opening diameter of the cavity in the circumferential direction orthogonal to the flowing direction of a molten resin introduced into the cavity from the gate, and a fine outside air inlet part circumferentially formed on the outer part from the stepped part. The outside air inlet part is formed of a porous material and allowed to communicate with the outside of the resin molding metal mold through a communicating passage. Accordingly, the molten resin injected into the cavity from the gate is cooled with the outside air introduced from the outside air inlet part formed in the area except a transfer part after the reduction in resin pressure by the stepped part to generate a sink, forming a non-transfer part, so that the transfer property of the transfer part can be improved to enhance the shape precision of the molded product.

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Kanagawa, Japan

Shinya Seno