Seiko Epson Corporation

Fujimori Kogyo Co., Ltd.

Sony Corporation

Epson Imaging Devices Corporation

Hiroshi Wada

Toru Takahashi

Takamitsu Kondo

Kazuyoshi Tanase

Chiyoaki Iijima

Shinji Wada

Eiji Okamoto

Toshimitsu Hirai

Osamu Okumura

Masaya Ishida

Takashi Yamada

Kenji Hashimoto

Rinjiro Ichikawa

Hitoshi Nishizawa

Toru Miyamoto

Toshio Tanaka

Akio Kobayashi

Tsuyoshi Maeda

Yoichi Momose

Shinichi Nakamura

Akihiko Tsunoya

Satoru Miura

Kimitaka Kamijo

Kunihiko Yano

Takeyoshi Ushiki

Masakatsu Higa

Hisanori Kawakami

Yuzuru Sato

Kanemitsu Kubota

Hiroshi Ohara

Toshihiko Tsuchihashi

Mitsuhisa Ando

Naoki Maruyama

Satoshi Kamada

Masataka Shiramizu

Kenichi Tanaka

Yasushi Kasajima

Saori Eisaki

A three-dimensional shaped article production method for producing a three-dimensional shaped article by stacking layers to form a stacked body includes a constituent layer formation step of forming a constituent layer which corresponds to a constituent region of the three-dimensional shaped article, a support layer formation step of forming a support layer which is in contact with the constituent layer and supports the constituent layer, and a sintering step of sintering the constituent layer, wherein the support layer is configured such that as compared with the volume decrement accompanying the sintering step of a space surrounded by the constituent layer from at least two directions, the volume decrement accompanying the sintering step of the support layer which supports the constituent layer in the space is larger.

Three-dimensional shaped article production method

A three-dimensional shaped article production method for producing a three-dimensional shaped article by stacking layers to form a stacked body includes a first layer formation step of forming a first layer on a support by supplying a first composition containing first particles and a binder, a second layer formation step of forming a second layer composed of one layer or a plurality of layers on the first layer by supplying a second composition containing second particles and a binder, and a separation step of separating the second layer from the support through the first layer, wherein after the separation step, a sintering step of sintering the second layer is performed.

An encoder includes a light emitting portion emitting light, an optical element portion splitting the light into a first beam and a second beam, an optical scale receiving the first beam and the second beam from the optical element portion, and a light receiving portion receiving the first beam and the second beam from the optical scale and outputting a signal in accordance with intensity of the received light, in which the optical element portion includes a prism on which the light is incident, a beam splitter disposed on the prism and splitting the light incident on the prism into the first beam heading for the optical scale and the second beam heading for an inside of the prism, and a first mirror portion disposed on the prism and reflecting the second beam from the beam splitter toward the optical scale.

Encoder, printer, and robot

An encoder includes an optical scale including a scale portion that is constituted with a polarizer, a light emitting portion which emits light, an optical element unit which divides the light into first light and second light and makes the first and second lights incident onto the scale portion, and a light receiving portion which receives the first light and the second light from the scale unit and outputs a signal corresponding to intensities of the received first light and second light, and in which the first light and the second light overlap other within a plane of the scale portion.

An encoder includes an optical scale that has a phase difference plate, a light source section that irradiates the phase difference plate with light, and a light receiving section that receives the light from the phase difference plate, and outputs a signal corresponding to a received light intensity. The light emitted from the light source section is linearly polarized, and the light receiving section outputs a signal corresponding to a polarization state of the light from the phase difference plate.

Encoder, robot, and printer

The color of object data that indicates the shape and the color of an object is reproduced faithfully when modeling an object. A model is formed by discharging droplets having the same color from droplet discharging units onto a medium, based on the same reference signal. Colorimetry is performed on the model, and a first-portion and a second-portion having a color with a higher density are specified. The liquid amount of droplets per unit area to be discharged from droplets discharging units that formed the first-portion and the liquid amount of droplets per unit area to be discharged from droplets discharging units that formed the second-portion are adjusted such that a difference in density of colors to be reproduced decreases. The object is modeled by repeating processing for discharging droplets from the droplet discharging units based on the object data.

Three-dimensional modeling apparatus, three-dimensional modeling method and computer program

A three-dimensional modeling apparatus is provided with a head unit for modeling an object by discharging a liquid into each unit grille and a control unit for controlling the head unit. The control unit controls the head unit so as to discharge a designated type of colored liquid into a first unit grille out of two unit grilles adjacent to each other in a direction from a surface of the object to the interior, and discharge, into a second unit grille, one or more types of colored liquids that includes at least one colored liquid of the same type as the colored liquid discharged into the first unit grille, so as to be able to express a color of the surface of the object using the colored liquid discharged into the first unit grille and the one or more colored liquids discharged into the second unit grille.

Three-dimensional modeling apparatus and manufacturing method

A printing apparatus is provided in which a position of a joint of a first yellow nozzle group and a second yellow nozzle group in a predetermined direction is offset from a position of a joint of a first magenta nozzle group and a second magenta nozzle group in a predetermined position and a position of a joint of a first cyan nozzle group and a second cyan nozzle group in the predetermined position, and the position of the joint of the first magenta nozzle group and the second magenta nozzle group in the predetermined position is the same as the position of the joint of the first cyan nozzle group and the second cyan nozzle group in the predetermined direction.

Printing apparatus and printing method

There is provided a liquid discharging apparatus including: a first nozzle row and a second nozzle row in which nozzles for discharging liquid are lined up in a predetermined direction; and a control unit, in which the control unit, when a value of the input data of the image is at least in a partial range, obtains a corrected discharging rate which is a discharging rate smaller than a discharging rate in the non-overlapped region with respect to the value of the input data at least in the partial range of the input data, and discharges the liquid from the nozzles of the first nozzle row and the second nozzle row depending on the corrected discharging rate, and a predetermined recording duty which is a recording duty higher than a recording duty in the non-overlapped region, in the overlapped region.

Liquid discharging apparatus and liquid discharging method

A printing apparatus includes: a supporting member which supports a medium; a transport device which transports the medium; first to fourth heads which eject first to fourth radiation curable type inks; a first irradiation section; a second irradiation section; a third irradiation section; and a fourth irradiation section which is arranged on the downstream side of the fourth head, in which the radiation rays respectively irradiated from the first irradiation section to the third irradiation section have a peak wavelength of 350 nm to 450 nm, and coloring materials included in the third ink and the fourth ink have higher absorption properties of the radiation rays with the peak wavelength than coloring materials included in the first ink and the second ink.

Printing apparatus

A printer or the like is provided that can increase adhesiveness between cured photo curable ink and a print medium as necessary. The printer includes a discharge unitthat discharges UV ink on a print medium S, an ultraviolet ray irradiation unitthat is set to a first mode in which, of a first light for curing the UV ink and a second light with higher curing properties than the first light, only the first light is irradiated on the print medium S on which the UV ink has been discharged, or a second mode in which at least the second light is irradiated, an adhesiveness information acquisition unit that acquires adhesiveness information related to ink adhesiveness which is adhesiveness between the UV ink and the print medium S when the UV ink is cured using the first light, and a control unit that sets the ultraviolet ray irradiation unitto the second mode when the acquired adhesiveness information is designated information related to low ink adhesiveness.

Printer, printer control method, and light irradiation device

A printing apparatus including a head section which discharges a color ink which is cured due to irradiation of light and a clear ink which is cured due to the irradiation of light, an irradiation section which irradiates the light, and a storage section which stores a relationship between a total amount of color duty which is an amount of the color ink which is discharged per unit region and clear duty which is an amount of the clear ink which is discharged per unit region, and glossiness of an image which is printed using the color ink and the clear ink which have been discharged, wherein, according to the color duty in a certain region in the image, the clear duty in the region is determined based on the relationship so that the glossiness of the image is a predetermined value.

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Azumino, Japan

Hiroshi Wada