Canon Kabushiki Kaisha

Canon Kabushiki Kaisha Kaisha

Yoshinori Tagawa

Hiroyuki Murayama

Kenji Fujii

Jun Yamamuro

Kazuhiro Asai

Satoshi Ibe

Masaki Ohsumi

Makoto Watanabe

Toshiaki Kurosu

Shuji Koyama

Masataka Nagai

Yoshinobu Urayama

Taichi Yonemoto

Hiroto Komiyama

Junichi Kobayashi

Takanobu Manabe

Keiji Watanabe

Mitsuru Chida

Hideo Tamura

Shingo Nagata

Kouji Hasegawa

Shiro Sujaku

Masahiko Kubota

Masahisa Watanabe

Akihiko Okano

Masaki Osumi

Takeshi Terada

Maki Kato

Yoshiyuki Imanaka

Yoshiaki Suzuki

Tamaki Sato

Hiroyuki Abo

Shuhei Oya

Keiji Edamatsu

Mitsunori Toshishige

Tadanobu Nagami

Souta Takeuchi

Koji Sasaki

Yoshiaki Kurihara

Noriyasu Ozaki

Tatsuya Masukawa

Masashi Miyagawa

Aya Yoshihira

Shoji Shiba

Kousuke Kubo

Yasushi Iijima

Jun Kawai

Yasunori Takei

Isamu Horiuchi

Kazumasa Matsushita

Hiroe Ishikura

Yuuji Tamaru

Wataru Hiyama

Kouji Sasaki

Tsuyoshi Takahashi

Masamichi Yoshinari

Watanabe Makoto

Kurosu Toshiaki

Manabe Takanobu

Fujii Kenji

According to an aspect of the present invention, a liquid discharge head includes a discharge outlet configured to discharge a liquid, wherein a division member dividing the discharge outlet into a plurality of regions is formed in the discharge outlet when viewed from a position facing the discharge outlet, wherein, when a direction in which the liquid is discharged from the discharge outlet is a direction upward from bottom, the division member has a first surface and a second surface facing upward, and wherein the second surface is disposed at the bottom lower than the first surface.

Liquid discharge 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 recording head having a substrate and a channel forming member configured to form a flow channel, a supply port formed at the substrate so as to penetrate through the substrate, the flow channel communicates with the supply port, and a member formed of an organic material and configured to connect two surfaces forming the supply port and opposing each other with the supply port interposed therebetween.

Recording 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 liquid ejection head includes a print element board and an electric wiring board electrically connected to a bump of the print element board using an interconnecting wire. The bump has a first surface and a second surface. The height of the second surface from a surface of a base plate is higher than that of the first surface. The first surface has a protrusion formed therein, and the bump is connected to the interconnecting wire in the second surface.

Liquid ejection head and method for manufacturing liquid ejection head

A liquid ejection head includes a substrate which has an energy-generating element that generates energy to be utilized for ejecting a liquid, and a supply orifice for supplying the liquid to the energy-generating element; and an ejection orifice forming member that has a plurality of ejection orifices through which the liquid is ejected, and at least one beam-like projection which projects toward the substrate and extends along an array direction of the ejection orifices at a position corresponding to the supply orifice. A sectional area perpendicular to the array direction of the ejection orifices at the central part of the beam-like projection in the array direction of the ejection orifices is larger than a sectional area in the direction perpendicular to the array direction of the ejection orifices at both ends of the beam-like projection in the array direction.

Liquid ejection head

An object of the present invention is to provide a liquid ejection head capable of suppressing the capture of bubbles into the liquid ejection head including ejection ports having different opening areas so as to satisfactorily fill a liquid channel and the ejection ports with liquid. In order to achieve the object, the liquid ejection head according to the present invention includes a liquid supply port communicating with a plurality of kinds of ejection ports, and further, a defoaming opening communicating with another ejection port except an ejection port having a large opening area out of the plurality of kinds of ejection ports via a defoaming channel.

Liquid ejection head and fabricating method therefor

A liquid ejection head has an element substrate constituted of a substrate body having a plurality of energy generating elements for liquid ejection and a nozzle plate having a plurality of ejection ports arranged corresponding to the respective energy generating elements so as to form a plurality of ejection port rows each extending in a first direction, the rows being arranged side by side so as to expand in a second direction intersecting the first direction. The nozzle plate has also a groove section, or a plurality of hollow sections arranged to form a hollow section row, as extending in the first direction, at least between one of the opposite edges as viewed in the second direction of the nozzle plate and the ejection port row arranged close to the same edge.

A liquid ejection head is provided with a recording element substrate having a plurality of ejection orifices for ejecting a liquid, the plurality of ejection orifices being arranged to form a row of the ejection orifices. In at least some of the plurality of the ejection orifices, each having one side and another side, the area of an inner wall of the ejection orifices is set to be larger on the other side than on the one side, the one side and the other side being defined by a plane which passes through the center of the ejection orifice, intersects with the row of the ejection orifices at right angles and extends along the direction of the depth of the ejection orifice.

A liquid ejection head chip includes a liquid ejection unit having a plurality of ejection orifices for ejecting a liquid, a flow path in communication with the ejection orifices, and an energy generating element that generates energy for ejecting the liquid, the liquid ejection unit being provided on an upper surface formed of a (100) surface of a silicon single-crystal substrate. The side surfaces in at least one of two combinations of opposing side surfaces of the substrate have (111) surfaces of silicon single crystal and the angles of the (111) surfaces relative to the (100) surface are supplementary to each other.

Liquid ejection head and method for manufacturing the same

Provided is a method of manufacturing a liquid ejection head, including: forming, on a substrate, a flow path mold pattern that becomes a mold of a liquid flow path; forming a negative photosensitive resin layer on the flow path mold pattern; subjecting the negative photosensitive resin layer to exposure processing with use of a reduction projection exposing apparatus and a mask pattern having an ejection orifice mask shape for forming ejection orifices; and subjecting the negative photosensitive resin layer obtained after the exposure processing to development processing to form the ejection orifices, in which the ejection orifices are formed by correcting, by the ejection orifice mask shape, an inclination of an ejection angle due to an off-axis telecentricity caused by the reduction projection exposing apparatus so as to be close to a direction perpendicular to a surface of the substrate.

Method of manufacturing liquid ejection head

A method for manufacturing a liquid ejection head includes the steps of: disposing an etching mask layer on a substrate having a first face and a second face that is on an opposite side of the first face, the etching mask layer being disposed on the second face; forming a concave line pattern at a region of the etching mask layer other than a region where an opening for the support port is to be formed; providing an etching opening at the etching mask layer; performing anisotropic etching from a side of the second face using the etching mask layer provided with the etching opening as a mask, thus forming the supply port at the substrate; comparing the line pattern with a recess generated at the substrate, thus selecting a device chip for liquid ejection; and connecting the selected device chip to a liquid supply part.

Method for manufacturing liquid ejection head

A method for manufacturing a liquid ejecting head including an orifice plate having an ejecting orifice and a liquid channel, and a substrate having a liquid ejecting energy generating element and a liquid supply port, the method including: (1) forming a liquid channel mold of a soluble resin dissolved in (6) on the substrate; (2) coating the liquid channel mold with a photosensitive resin layer having a refractive index of n at an exposure wavelength used in (4); (3) forming an antireflective film having a refractive index of &#x221a;n&#x2212;0.2 or more to &#x221a;n+0.2 or less at the exposure wavelength used in (4) on the photosensitive resin layer; (4) exposing and developing the photosensitive resin layer and antireflective film to form the ejecting orifice; (5) forming the liquid supply port on the substrate; and (6) dissolving and removing the liquid channel mold from the liquid supply port.

Method for manufacturing liquid ejecting head

The method of manufacturing a liquid ejection head includes: forming a first protective layer on one surface of the substrate; forming the wiring layer on another surface of the substrate; forming the insulating layer on the wiring layer, and then partially removing the insulating layer to partially expose the wiring layer; forming the electrode pad on an exposed portion of the wiring layer; forming a flow path member on the another surface of the substrate; forming a second protective layer on the one surface of the substrate after the formation of the flow path member; and partially removing at least one of the first protective layer and the second protective layer, and then forming the supply port leading from the one surface of the substrate to the another surface of the substrate.

Growing community of inventors

Yokohama, Japan

Yoshinori Tagawa