Canon Kabushiki Kaisha

Shogo Kawamura

Toshiaki Hirosawa

Ryoji Inoue

Hideki Ogura

Tetsuya Ohashi

Yasuo Kotaki

Riichi Saito

Takuya Iwano

Osamu Morita

Yasuhiko Osaki

Ryoichi Matsumoto

Hiromasa Amma

Genji Inada

Shin Ishimatsu

Osamu Sato

Satoshi Oikawa

Minoru Nozawa

Shuzo Iwanaga

Koichi Kubo

Toshihiro Mori

Hideo Saikawa

Michinari Mizutani

Toshimori Miyakoshi

Yasutomo Watanabe

Kazuhiko Miyahara

Ryoichiro Kurobe

Akira Yamamoto

Hiroshi Abe

Shuichi Murakami

Tetsuya Edamura

Kenta Udagawa

Isao Imamura

Nobuyuki Hatasa

Yasushi Iijima

Tetsuya Sekine

Kyota Miyazaki

Takayuki Murata

Kazuhiko Okito

Hisashi Fukai

Yoshiyuki Shino

Naruyuki Nojo

Naoki Nakajo

Yasuo Kotani

A liquid ejection head is a liquid ejection head including a printing element substrate including a plate provided with an ejection port from which ink is ejected, including: a first groove that is provided around the plate of the printing element substrate; a second groove that is provided on the printing element substrate and in communication with the first groove through a communication portion; and a resin portion that is provided in the first groove, the communication portion, and in the second groove and protrudes from the plate in a direction crossing a surface of the plate.

Liquid ejection head and method of manufacturing liquid ejection head

A liquid ejection head with which print of good print quality can be obtained and a method of manufacturing the liquid ejection head are provided. For that purpose, warped flow path members are joined to each other as flow path members used for a print head to form a flow path member warped in a direction opposite to a direction of warpage due to a temperature rise during printing.

A liquid ejection head includes an element substrate including an energy-generating element that applies ejection energy to liquid, a first electric wiring board electrically connected to the element substrate, and a second electric wiring board on which an integrated circuit element is mounted and which is electrically connected to the first electric wiring board. An electric signal is supplied to the integrated circuit element mounted on the second electric wiring board through the first electric wiring board, processed by the integrated circuit element, and supplied to the energy-generating element through the second electric wiring board and the first electric wiring board.

Liquid ejection head

A liquid ejection head can suppress the influence of static electricity and the increase of a mounting force as well as downsize and save space of the liquid ejection head. The liquid ejection head is attachable and detachable with respect to a body connector provided on a liquid ejection apparatus body. Further, the liquid ejection head includes a head connector including a terminal which can be electrically connected to the body connector and a grounding member which is held at a coverage position where the terminal is covered in a non-contacting state with the body connector. The grounding member is formed with a deformable electroconductive member, and, as the head connector is made to move to a mounting position with respect to the body connector, is pressed by the body connector and is displaced to a position apart from the coverage position. Thus, the body connector can be connected with the terminal.

Liquid ejection head and liquid ejection apparatus

A liquid ejecting head including a print element substrate including an ejection opening for ejecting a liquid, a wiring member including wiring electrically connected to the print element substrate, a connection electrically connecting the print element substrate to the wiring member, a support member supporting the wiring member, a sealing material sealing the connection, and a cover member provided on the support member. In the liquid ejecting head, the wiring member is a strip-shaped member, and a portion of the wiring member provided on a surface of the support member that supports the wiring member is covered by the sealing material and the cover member.

Liquid ejecting head

A page-wide liquid ejection head configured to be removably installed in a main body of a liquid ejection apparatus includes a connection part for liquid through which a liquid is supplied from the main body and an electrical connector through which an electric signal is supplied from the main body. In the liquid ejection head, the connection part for liquid and the electrical connector are located at one side of the liquid ejection head in the longitudinal direction and are provided to face different directions from each other.

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

A page-wide type liquid ejection head includes a plurality of recording element substrates, each having an ejection port array including a plurality of ejection ports, each ejection port communicating with a pressure chamber including therein a recording element, and a liquid supply path for supplying a liquid to the pressure chamber. The liquid ejection head also includes a flow path member mounting the recording element substrates arranged thereon. The flow path member includes common supply flow paths and individual supply flow paths that connect the liquid supply path to the common supply flow paths, and the individual supply flow paths include portions running obliquely to the direction orthogonal to the longitudinal direction of the liquid ejection head.

Provided are a molding method for efficiently and accurately performing molding of a layered component made of a thermosetting resin by a simple mechanism, and molded articles. For this purpose, primary molding for molding a plurality of divided bodies and secondary molding for joining the plurality of divided bodies with one another are performed sequentially.

Transfer molding method, transfer molding device, and molded article

There is provided a molding method for efficiently and accurately molding a hollow part of a thermosetting resin with a simple mechanism, a mold, and a molded article. A mold used for molding of a thermosetting resin includes an upper mold, an intermediate mold, and a lower mold which can be stacked with each other. Primary molding for molding segment parts and secondary molding for bonding the segment parts are sequentially performed by placing or retracting the intermediate mold to switch between a runner for primary molding and a runner for secondary molding.

Transfer molding method, mold, and molded article

The invention provides a molding material including a liquid epoxy resin composition containing an epoxy resin, a curing agent or a curing catalyst, a filler, a thixotropy-imparting agent, and a wetting dispersant.

Molding material and liquid ejection flow path member using the same

A liquid discharge head includes an element substrate including an energy generating element; a supporting member adhesively supporting the element substrate; a sheet member adhesively bonded to the supporting member to adjoin the inner surface of an opening accommodating the element substrate in the sheet member and an end section of the element substrate; a wiring substrate bonded to the sheet member to adjoin the inner surface of an opening accommodating the element substrate in the wiring substrate and the end section of the element substrate and including a wire electrically connected to the energy generating element; and a sealant sealing a part electrical connecting the wiring substrate and element substrate, wherein the height of a wiring substrate surface opposite to that contacting the sheet member from supporting member is smaller than the element substrate surface opposite to that contacting the supporting member from the supporting member.

Liquid discharge head and method of producing liquid discharge head

A liquid container includes an air-tight liquid-storage chamber or reservoir, a movable member for agitating liquid, and a protrusion portion for supporting the movable member. The movable member and the protrusion portion are disposed in the liquid-storage chamber. The movable member includes a first end that is linearly movable along the protrusion portion and a second end that is free.

Liquid container

A liquid discharge recording head includes: a recording element substrate, an electric wiring board, and a supporting plate that supports the recording element substrate and the electric wiring board, with a gap formed between the recording element substrate and the electric wiring board, and a connecting member that electrically connects, across the gap, an electrode provided in the recording element substrate and an electrode terminal provided in the electric wiring board. A first resin agent that is filled in the gap, a second resin agent seals the electrode, the electrode terminal, and the connecting member, and a third resin agent that is provided between the first resin agent and the supporting plate and has a lower modulus of elasticity than the first resin agent and the second resin agent.

Liquid discharge recording head and method of manufacturing the same

A recording head includes a recording element substrate having a plurality of discharge ports discharging a liquid and energy generating elements generating energy used to discharge the liquid from the discharge ports; an electrical wiring substrate having an opening portion in which the recording element substrate is provided and for applying a driving signal to the recording element substrate; an electrical connection portion in which an electrode portion of the recording element substrate and an electrode portion of the electrical wiring substrate are electrically connected to each other by a wire; and a sealing material covering and sealing the electrical connection portion. The electrical connection portion is provided with a reference member as a reference of at least one of an upper limit position and a lower limit position of the height of the surface of the sealing material with respect to the thickness direction of the recording element substrate.

Recording head

An ink tank includes a stirrer supported in a freely moveable manner near an inner wall of an ink storage chamber. When the stirrer moves closest to the inner wall, a predetermined gap is formed between opposing surfaces of the inner wall and the stirrer.

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Numazu, Japan

Shogo Kawamura