Seiko Epson Corporation

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Eiko Epson Corporation

Tsuyoshi Kitahara

Noriaki Okazawa

Minoru Usui

Takahiro Katakura

Tomoaki Takahashi

Takahiro Naka

Shinichi Nakamura

Yoshiaki Yamada

Satoru Hosono

Shinji Yasukawa

Hideaki Sonehara

Satoru Katagami

Ryoichi Tanaka

Yoshinori Miyazawa

Yoichi Miyasaka

Shuji Yonekubo

Koji Morikoshi

Kaoru Momose

Takayuki Iijima

Osamu Nakamura

Hiroshi Ishii

Hiroshi Arai

Yoshihiko Ushiyama

Hitotoshi Kimura

Hisashi Miyazawa

Munehide Kanaya

Masahiko Yoshida

Noboru Tamura

Kenji Otokita

Kazunaga Suzuki

Toshiki Usui

Norihiko Kurashima

Hirofumi Kobayashi

Toshio Kumagai

Hiroshige Owaki

Hidenori Usuda

Hironori Endo

Toshihisa Saruta

Tomohiro Sayama

Eiji Kumai

Nagamitsu Takashima

Tomoaki Abe

Masanao Matsuzawa

Tatsuya Seshimo

Katsumori Takei

Tsutomu Miyamoto

Tatsuo Furuta

Hirofumi Teramae

Hideki Morozumi

Kenichi Kanbayashi

Chang Junhua

Eizo Takahashi

Kohji Watanabe

Hiromu Hirabayashi

Tohru Fukushima

Koichi Higashimura

Takayuki Iljima

Hidetaka Sakurai

Naomi Serizawa

Makoto Fujita

Nobuaki Okazawa

A three-dimensional shaping apparatus coupled to a server includes a melting portion melting a material to form a shaping material, an ejection portion ejecting the shaping material supplied from the melting portion, a shaping stage where the shaping material ejected from the ejection portion is stacked, a moving mechanism changing a relative position of the ejection portion and the shaping stage, a shape data generation portion generating second shape data for representing a shape of a three-dimensional shaped article including a shape representing identification information for identifying the three-dimensional shaped article using first shape data and the identification information for identifying the three-dimensional shaped article, a controller controlling the melting portion and the moving mechanism according to the second shape data, thereby producing the three-dimensional shaped article, and a communication portion transmitting the identification information for identifying the three-dimensional shaped article and production information of the three-dimensional shaped article to the server.

Three-dimensional shaping apparatus, three-dimensional shaping system, and three-dimensional shaped article production method

A liquid material arrangement method is a method for arranging a liquid material in a plurality of prescribed regions on a substrate by discharging the liquid material as a droplet from a nozzle. The liquid material arrangement method includes: performing a discharge information acquiring step for acquiring discharge information of the nozzle including a landing position and a discharge quantity of the droplet discharged from the nozzle by a nozzle check; performing a second pattern generating step for generating a second dot pattern, which is an arrangement pattern for arranging a prescribed number of droplets, by selecting at least one non-discharge dot from a first dot pattern, which is an arrangement pattern for arranging more droplets than the prescribed number of droplets, based on the discharge information; and performing a liquid material arranging step for arranging the liquid material in the prescribed regions based on the second dot pattern.

Liquid material arrangement method, color filter manufacturing method, and organic EL display device manufacturing method

A liquid material arrangement method includes a first patter generating step, a dot deleting step and a liquid material arranging step. In the first pattern generating step, a first dot pattern is generated in which a first prescribed number of dots is set. In the dot deleting step, a second prescribed number of dots is deleted to generate a second dot pattern. In the liquid material arranging step, a liquid material is arranged in the prescribed region on the substrate by causing a nozzle and the substrate to scan in relative manner and discharging the liquid material based on the second dot pattern. In the dot deleting step, a dot indicator for each the first prescribed number of dots is determined based on discharge information of the nozzle, and the second prescribed number of dots is deleted based on the dot indicator.

A liquid material arrangement method includes performing a first pattern generating step, a dot deleting step, and a liquid material arranging step. The first pattern generating step includes generating a first dot pattern in which a first prescribed number of dots is set according to the prescribed region. The dot deleting step includes deleting a second prescribed number of dots from the first prescribed number of dots to generate a second dot pattern. The liquid material arranging step includes arranging a liquid material in a prescribed region on a substrate by causing a nozzle and the substrate to scan in relative manner and discharging the liquid material from the nozzle based on the second dot pattern. The performing of the dot deleting step further includes deleting at least one prohibited dot with priority with the prohibited dot being determined based on discharge information of the nozzle determined in advance.

A head unit includes a plurality of nozzle groups. Each group has a plurality of nozzles discharging liquid as liquid droplets. The nozzles are arranged at an approximately equal distance from one another when viewed from a first direction. The nozzle groups are arranged at the distance when viewed from the first direction and in a direction intersecting with the first direction, and adjacent nozzles of the nozzle groups adjacent when viewed from the first direction discharge an approximately equal amount of the liquid droplet.

Head unit, liquid droplet discharging apparatus, method for discharging liquid, and methods for manufacturing color filter, organic EL element and wiring substrate

An ink-jet recording head has a plate-shaped member including a first layer with a partition wall formed by a first etching process and defining a pressure chamber, an ink inlet passage and a common ink storage chamber, a second layer with a land formed by a second etching process so as to correspond to the pressure chamber, and an intermediate layer sandwiched between the first and the second layers. The recording head also has a pressure producing device disposed with its extremity in contact with the land, and a nozzle plate with a nozzle hole bonded to the front surface of the plate-shaped member. An ink particle is jetted through the nozzle hole when the pressure in the pressure chamber is changed by the pressure producing device.

Method of manufacturing an ink-jet recording head

Common internal electrodesand segment internal electrodesare laminated alternately with a piezoelectric materialbetween and a common external electrodeand a segment external electrodeare provided on the surface, forming a drive vibrator. A free end partof the drive vibratoris formed with an active region L and can be expanded and contracted in the length direction of the vibrator. A piezoelectric materialof the outermost layer in the free end partcan be operated based on the potential difference between the external and internal electrodes and a portion of the active region L in the external electrode is used as a trimming portion with an effective length x varied by trimming.

Manufacturing method of piezoelectric vibrator unit, manufacturing method of liquid jet head, piezoelectric vibrator unit, and liquid jet head

The present invention relates to a method of manufacturing a piezoelectric vibration element unit used for an inkjet recording head. The method includes the steps of alternately laminating conductive layers and piezoelectric material layers, sintering a laminated structure after the conductive layers and the piezoelectric layers are laminated to a predetermined thickness, forming external connection electrodes on surfaces of the sintered structure, and fixing a non-vibration region of the sintered structure onto a fixing plate. A region of the structure where the conductive layers are formed is cut into drive piezoelectric vibration elements, and a region of the structure where the conductive layers are not formed is cut into a dummy piezoelectric element.

Method of manufacturing a piezoelectric vibration element for an inkjet recording head

A nozzle plate of the invention has nozzle opening including a taper partfor guiding ink in a pressure generation chamber and a straight pore partformed contiguous with the taper part.

Method of manufacturing a nozzle plate

An ink jet headof linear form which consists of a plurality of nozzlesarranged as a nozzle rowis provided in an ink jet device for manufacture of a color filter. Filter element materialfrom the nozzleswhich differ from the motherboardis discharged four superimposed times by the plurality of nozzles, and is formed to a predetermined film thickness upon a single filter element. It is possible to prevent the occurrence of undesirable deviations in film thickness between different ones of the filter elements, so that it is possible to flatten and make even the optical transparency characteristic of the resulting color filter

Liquid drop discharge head, discharge method and discharge device; electro optical device, method of manufacture thereof, and device for manufacture thereof; color filter, method of manufacture thereof, and device for manufacture thereof; and device incorporating backing, method of manufacture thereof, and device for manufacture thereof

Ink jet liquid injector

A nozzle plate () having a nozzle opening () formed thereon, a passage forming substrate () having a pressure chamber (), an ink supply port () and a common ink chamber () formed sequentially to communicate with the nozzle opening (), and a vibrating plate () for being deformed to pressurize the pressure chamber () are provided and laminated to constitute a passage unit (). The passage forming substrate () is fabricated by an insert molding using a reinforcing plate () as a core and a portion to be an ink passage is partitioned and formed by a resin ().

Method of manufacturing an ink jet type recording head

A piezoelectric vibrator unit comprises: at least one piezoelectric vibrator including: common internal electrode layers and segment internal electrode layers arranged alternately; piezoelectric layers, each interposed between adjacent pair of the common and segment internal electrode layers; and external electrodes formed on an exterior of the piezoelectric vibrator and electrically connected respectively to the common internal electrode layers and the segment internal electrode layers; and a fixing member to which a surface of the piezoelectric vibrator is fixed. The piezoelectric vibrator is displaceable in a direction perpendicular to a lamination direction in which the internal electrode layers and piezoelectric layers are laminated. The magnitude of electric fields applied to the piezoelectric layers is non-uniform.

Piezoelectric vibrator unit

Growing community of inventors

Nagano, Japan

Tsuyoshi Kitahara