Seiko Epson Corporation

Shunsuke Watanabe

Katsumi Enomoto

Shingo Tomimatsu

Yuma Fukuzawa

Hiroaki Okui

Satoshi Oguchi

Yoshinao Miyata

Ryota Kinoshita

Motoki Takabe

Fujio Akahane

Takahiro Kanegae

Fumiya Takino

Hiroshige Owaki

Katsuhiro Okubo

Shunya Fukuda

Noriaki Okazawa

Yasunori Onishi

Toshiro Murayama

Hajime Nakao

Hiroyuki Ishii

Yukihiro Hashi

Hiroyuki Hagiwara

Kenta Anegawa

Yoichi Naganuma

Kazuaki Uchida

Akira Miyagishi

Yasuo Inaoka

Eiju Hirai

Shiro Yazaki

Tokujiro Okuno

Katsuhiko Maki

Koji Chindo

Kohei Yuwaki

Katsutomo Tsukahara

Nobuaki Ito

Masahiko Sato

Haruhisa Uezawa

Hiroki Miyajima

Hitoshi Takaai

Mutsuhiko Ota

Haruki Kobayashi

Keigo Yamasaki

Junichi Sano

Noriaki Tanaka

Shun Katsuie

Daisuke Yamada

Tadao Furuta

Hitoshi Yamada

Akira Hotta

Jun Kakizaki

There is provided a head module in which a first direction is a main scanning direction, including: a first nozzle row including a first nozzle; a second nozzle row including a second nozzle; and a third nozzle row including a third nozzle, in which a distance Pbetween the first nozzle row and the second nozzle row in the first direction and a distance Pbetween the first nozzle row and the third nozzle row in the first direction are expressed as P:P=E:Owhere a value Eis a positive even number and a value Ois a positive odd number satisfying O>E

Liquid discharge apparatus and head module

The plurality of first nozzles and the plurality of second nozzles are arranged such that a distance between nozzles adjacent to each other in a first direction is a first distance, the support body is provided with a first fixing portion for fixing the first head unit onto the support body and a second fixing portion for fixing the second head unit onto the support body, and a distance between the first fixing portion and the second fixing portion in the first direction is a second distance that is different from an integral multiple of the first distance.

Liquid discharging apparatus and support body

The flow channel forming substrate has a partition wall which is disposed between two of the outlet flow channels adjacent to each other and which partitions the outlet flow channel.

Liquid ejecting head and liquid ejecting apparatus

A liquid ejecting head includes: a flow channel forming substrate that forms an individual flow channel including a nozzle and a pressure chamber, a first common liquid chamber, and a second common liquid chamber; and a pressure generating element that causes a pressure change in a liquid in the pressure chamber, in which the first common liquid chamber is coupled to the second common liquid chamber via the individual flow channel, a compliance of the first common liquid chamber is larger than a compliance of the second common liquid chamber, and in the individual flow channel, a flow channel resistance between a first coupling portion with the first common liquid chamber and the pressure chamber is smaller than a flow channel resistance between a second coupling portion with the second common liquid chamber and the pressure chamber.

A liquid ejection head includes a flow path substrate, a first plate having a nozzle, and a second plate. A flow path substrate includes a first communication path which passes through a flow path substrate in a thickness direction and has an opening on each of a first plate side and a second plate side, and a second communication path communicating with an opening on a first plate side of a first communication path at a first plate side and extending on the second plate side. A pressure chamber communicating with a first communication path and a first flow path through which a liquid flows into a pressure chamber are formed by a part of a second plate and a part of a flow path substrate.

Liquid ejection head and liquid ejection apparatus

A flow path formation substrate to which a nozzle plate is mounted includes a pressure chamber per nozzle, an individual supply path leading to the pressure chamber, an individual recovery path communicating with a flow channel near the nozzle. A conduction unit electrically coupled through a lead electrode to a pressure generator causing a pressure of the pressure chamber to vary is located at a position where the conduction unit overlaps with a flow path area of at least one individual flow path of the individual supply path or the individual recovery path in a plan view from a lamination direction in which the nozzle plate and the flow path formation substrate are laminated.

Liquid ejecting head, liquid ejecting apparatus, and manufacturing method thereof

A liquid ejecting head including a head unit including a mounting surface on which a plurality of first terminals, to which a signal to eject ink from a nozzle is supplied, are formed, and a flexible wiring substrate including a plurality of second terminals that supply the signal to the head unit, the flexible wiring substrate bonded to the head unit with nonconductive paste while the second terminals and the first terminals are in an electrically coupled state, in which the plurality of second terminals are arranged at pitches of 50 &#x3bc;m or less, and in which protrusions in contact with surfaces of the first terminals are formed on surfaces of the second terminals, the protrusions protruding at a height exceeding a surface roughness of the second terminals.

Liquid ejecting head, liquid ejecting apparatus, and wiring substrate

A head includes a flow path substrate including a flow path of the liquid in the flow path substrate, a nozzle plate which is attached to the flow path substrate and in which the nozzle is formed, a pressure chamber substrate that is attached to a location facing the nozzle plate with the flow path substrate interposed therebetween and that has a pressure chamber, and a pressure generation portion that operates according to an electrical signal from a wiring substrate coupled to an electrode provided on the pressure chamber substrate and that changes a pressure of the pressure chamber to eject the liquid from the nozzle, in which the nozzle plate and the wiring substrate are disposed such that the nozzle plate does not overlap a coupling portion between the wiring substrate and the electrode when viewed in a thickness direction of the flow path substrate.

Liquid ejection head, liquid ejection apparatus, and method of manufacturing liquid ejection head

A head includes a first flow path forming member in which a first flow path communicating with a nozzle opening is formed, a sealing member which seals an opening of the first flow path, and a second flow path forming member which has a second flow path to supply a liquid to the first flow path. A communication portion of the first flow path communicates with a communication portion of the second flow path via a communication port of the sealing member interposed therebetween. The sealing member includes a diaphragm layer which forms one surface of the first flow path and a resin layer laminated on the diaphragm layer, and at least a part of an inside wall of the communication port is covered with a resin cover layer formed from a second resin different from a first resin which forms the resin layer.

Liquid ejecting head and liquid ejecting system with a sealing member

A liquid ejecting head including a head unit including a liquid ejecting unit that ejects a liquid from a nozzle, a drive circuit that drives the liquid ejecting unit, a containing body in which a space that stores the liquid is formed; a fixing plate which contacts the head unit on a nozzle side of the head unit; and a support that contacts the fixing plate and that supports the head unit, in which the support is formed of a material having a thermal conductivity higher than that of the containing body.

A flow path forming substrate on which a nozzle plate including a plurality of nozzles is mounted forms a supply flow path from a shared supply path shared for liquid supply to the plurality of nozzles, and an individual supply path branching from the shared supply path and leading to a pressure chamber for each of the nozzles, and forms a collecting flow path from an individual collecting path for each of the nozzles communicated with the communication flow path for each of the nozzles communicating with the nozzles and pressure chambers, and a shared collecting path shared for liquid collection from the plurality of nozzles by joining to the individual collecting path. The shared supply path is liquid-tightly closed by a supply-side flexible plate having flexibility, and the collecting flow path is liquid-tightly closed by a collecting-side flexible plate having flexibility over a flow path area.

An atomic oscillator includes an atom cell that accommodates an alkali metal atom therein, a container that houses the atom cell, a substrate on which the container is disposed, and a thermally insulating mount that is fixed to the substrate and positions the container relative to the substrate.

Atomic oscillator

An atomic oscillator includes a light source unit including a light source and a first temperature control device controlling the light source to have a first temperature, an atom cell unit including an atom cell accommodating an alkali metal atom and that light emitted from the light source enters and a second temperature control device controlling the atom cell to have a second temperature different from the first temperature, and a container accommodating the light source unit and the atom cell unit and has a first surface and a second surface different from the first surface. The light source unit is mounted to the first surface, and an air gap is present between the light source unit and the second surface. The atom cell unit is mounted to the second surface, and an air gap is present between the atom cell unit and the first surface.

An atomic oscillator includes an atom cell that accommodates an alkali metal atom, a container that accommodates the atom cell, a heating device that is disposed in the container and heats the atom cell, a substrate on which the container is disposed, and a positioning member that is disposed on the substrate and positions the container. The atom cell is pressed against the container toward the heating device. The heating device is pressed against the container toward the atom cell, and the container is in turn pressed against the positioning member.

Atomic Oscillator

A liquid ejecting apparatus includes a head unit capable of ejecting a liquid from a nozzle provided in a nozzle surface of a nozzle plate, an anchoring plate in which the head unit is anchored and that is provided with an opening region that exposes the nozzle surface, and a wiper member that wipes an anchoring plate exposed-surface located on the opposite side of the head unit of the anchoring plate and the nozzle surface. When an angle of contact between the nozzle surface and the liquid is taken as &#x3b8;n, an angle of contact between the anchoring plate exposed-surface and the liquid is taken as &#x3b8;s, and an angle of contact between the wiper member and the liquid is taken as &#x3b8;w, the relationship &#x3b8;n&#x3e;&#x3b8;s&#x3e;&#x3b8;w&#x3e;90&#xb0; is fulfilled.

Liquid ejecting apparatus

Growing community of inventors

Matsumoto, Japan

Shunsuke Watanabe