Canon Kabushiki Kaisha

Shuhei Oya

Makoto Watanabe

Kenji Fujii

Satoshi Ibe

Yoshinori Tagawa

Hiroyuki Murayama

Takanobu Manabe

Jun Yamamuro

Shingo Nagata

Masahisa Watanabe

Yusuke Hashimoto

Seiko Minami

Shiro Sujaku

Kouji Hasegawa

Hirohisa Fujita

Junya Hayasaka

Keiji Watanabe

Shuji Koyama

Kenji Ono

Masataka Nagai

Satoshi Ideta

Takashi Hayasaka

Tomoaki Kamagata

A liquid ejection head includes an element substrate, an electric wiring board, a cover member, and a support member having a first through hole, a second through hole, and a support surface. The element substrate includes an ejection port and a pressure chamber to supply liquid to the ejection port. The cover member is joined to the support surface with a first adhesive. The support member supports the element substrate and the electric wiring board on the support surface. The first through hole serves as a flow passage through which the liquid is supplied to the pressure chamber and the second through hole opens in the support surface. The first adhesive is disposed in an outer peripheral region of the support surface of the support member. A space surrounded by the cover member, the support member, and the first adhesive communicates with the second through hole.

Liquid ejection head and method for manufacturing the same

A liquid ejection head includes a substrate provided with an energy-generating element, an ejection orifice forming member that is formed on the substrate and includes an ejection orifice from which liquid is ejected, a reinforcing rib provided in the ejection orifice forming member, and a recess that is formed in the substrate and forms a part of a flow path of liquid, wherein the reinforcing rib is disposed in the inside of the recess.

Liquid ejection head and method of manufacturing the same

To provide dummy openings having at least one of arrangement and shape determined depending on the shape of a non-effective region.

Method of manufacturing substrate and semiconductor device

A method for manufacturing a liquid ejection head includes: a step of preparing a substrate having a first surface on which energy generation elements and a first layer are provided; and a step of forming a supply port by etching the substrate with an etching liquid or an etching gas from a second surface which is a surface opposite to the first surface so as to enable the etching liquid or the etching gas to reach the first layer, and the first layer is divided by a region which is located between a portion of the first layer covering the energy generation elements and a portion of the first layer to which the etching liquid or the etching gas is reached.

Method for manufacturing liquid ejection head

A method for imparting water repellency to a surface of a member includes a step in which a material including a compound containing a fluorine atom is deposited on a surface of a photosensitive resin layer in order to form a member including a material layer; a first exposure step in which the member is exposed to an amount of light with an exposure apparatus in order to form a latent image in the member; a development step in which the member including the latent image is developed; and a second exposure step in which the member is exposed to an amount of light with an exposure apparatus subsequent to the development step.

Method for imparting water repellency to surface of member

Performed are a non-through hole forming step of partitioning a supply path forming region of a second surface into a first region corresponding to a forming position of a beam, a second region located adjacent to the first region on both sides thereof, and a third region that is none of the first region and the second region, and forming a plurality of non-through holes in the second region and the third region, and an etching step of subjecting a silicon substrate to anisotropic etching from the second surface, to thereby form the supply path and the beam in the supply path. In the non-through hole forming step, at least one of an interval or a depth of the non-through holes is caused to differ in the second region and the third region, to thereby control the shape and dimension of the beam to be formed in the etching step.

Method of processing a silicon substrate and method of manufacturing a substrate for a liquid ejection head

A liquid discharge head includes a substrate, a heat resistor layer, and a side wall member that forms a side wall of a pressure chamber. The heat resistor layer has a heat effect portion configured to foam liquid in an interior of the pressure chamber to discharge liquid from a discharge port. The heat effect portion is apart from the substrate, at least part of a surface of the heat resistor layer is covered with a covering layer in the interior of the pressure chamber, and the covering layer extends from the interior of the pressure chamber to a position coming into contact with the side wall of the side wall member.

Liquid discharge head

A method for manufacturing a liquid discharge head. The method includes a first step of forming a telecentric measurement pattern A by exposure, the telecentric measurement pattern A being part of a measurement pattern that allows determination of inclination of a principal ray caused by an off-axis telecentric degree occurring in a projection exposing device, and a second step of forming a telecentric measurement pattern B by exposure under an exposure condition defocused from an exposure condition in the first step, the telecentric measurement pattern B being another part of the measurement pattern, which allows the determination of the inclination of the principal ray caused by the off-axis telecentric degree occurring in the projection exposing device. The off-axis telecentric degree is determined from an amount of misalignment between relative forming positions of the telecentric measurement patterns A and B and an amount of defocusing.

Method for manufacturing liquid discharge head

A device substrate includes a substrate body having an energy generating device provided thereon, where the energy generating device generates energy for ejecting liquid, an ejection port forming member disposed on the substrate body, where the ejection port forming member has a pressure chamber that surrounds the energy generating device and an ejection port that communicates with the pressure chamber, and a supply port configured to supply the liquid to the pressure chamber. The ejection port forming member has a first surface that is in contact with the substrate body and a second surface other than the first surface, and the supply port is formed in the second surface.

Device substrate, liquid ejection head, and method for manufacturing device substrate and liquid ejection head

A liquid ejection head and a printing apparatus can perform high-quality printing by suppressing the shrinkage stress of an adhesive joining a substrate and a flow path forming member and the deformation and peeling of the flow path forming member. A stress dispersing section is formed on the side surface of the substrate.

Liquid ejection head and printing apparatus

A method of manufacturing a liquid discharge head including a flow path member for forming a flow path communicating with a discharge port discharging a liquid includes forming a mold of the flow path made of a positive photosensitive resin on a substrate; applying a coated layer on the mold for forming the flow path member, which coated layer includes a solvent, an epoxy resin, and a curing agent of the epoxy resin; removing the solvent from the coated layer at a normal temperature under substantially 1 atm. so that the weight of the coated layer may become 93% or less of that thereof at a time of applying of the coated layer, and then further removing the solvent from the coated layer under a depressurized condition; curing the coated layer; and removing the mold to form the flow path.

Method of manufacturing liquid discharge head

A liquid discharge recording head comprising a plurality of recording element boards for discharging black ink and color ink, by which image quality of color ink is improved without decreasing image quality of black ink. The liquid discharge recording head including: a first recording element board including a first discharge aperture for discharging liquid; a second recording element board including a second discharge aperture, the second discharge aperture being smaller than the first discharge aperture; and a support member including a face for supporting the first recording element board and the second recording element board. A distance from the face of the support member to the second discharge aperture is longer than a distance from the face of the support member to the first discharge aperture.

Growing community of inventors

Kawasaki, Japan

Shuhei Oya