Canon Kabushiki Kaisha

Nec Corporation

Tjm Design Corporation

Akio Goto

Yoshinori Misumi

Yuzuru Ishida

Maki Kato

Norihiro Yoshinari

Takahiro Matsui

Ichiro Saito

Kenji Takahashi

Atsushi Koike

Hiroshi Higuchi

Akihito Sato

Nobuko Tayama

A portable tool brackethas a hook memberhaving a mounting portionattached to a portable tool bodyand a notch portionfor hooking and holding, an insertion portionthat is inserted into a guide rail portionprovided to a holderattached to a waist beltand is detachably attached to the holder. The insertion portionhas a pair of overhang portions that overhang on both sides of the insertion portionwith respect to the hook member

Portable tool bracket and portable tool

An element substrate, according to an embodiment of this present invention, capable of detecting the behavior of a liquid at a high sensitivity, comprises: a first electrothermal transducer configured to generate heat to discharge a liquid; at least one temperature detection element arranged near the first electrothermal transducer; and a second electrothermal transducer configured to generate heat in association with a temperature detection operation by the at least one temperature detection element.

Element substrate, liquid discharge head, and printing apparatus

The liquid ejection head includes a wall member having formed therein a void for communicating between a first liquid chamber and a second liquid chamber; a first energy generation element to eject the liquid in the first liquid chamber; a second energy generation element to eject the liquid in the second liquid chamber; a first electrode arranged in a vicinity of the first energy generation element in the first liquid chamber; a second electrode for forming, between the first electrode and the second electrode, an electric field in liquid inside the first liquid chamber; and a supply port which supplies liquid to the first energy generation element. The wall member includes a channel wall defining a channel through which the second liquid chamber, the void, and the supply port communicate, and the second electrode is arranged between the second liquid chamber and the supply port in the channel.

Liquid ejection head, liquid ejection apparatus, and control method

A method of cleaning a liquid discharge head, which includes a heat generating resistor that generates thermal energy for discharging a liquid and a covering portion covering the heat generating resistor, includes alternately performing a first voltage application process and a second voltage application process multiple times, and reducing energy applied in the second voltage application process. The first voltage application process includes applying voltage between the covering portion and an electrode through the liquid to dissolve the covering portion in the liquid. The second voltage application process includes reversing relative polarities of the covering portion and the electrode in the first voltage application process and applying voltage between the covering portion and the electrode. Energy applied in the second voltage application process is reduced such that the energy applied is less than energy applied in the first voltage application process of an immediately preceding time.

Liquid discharge head cleaning method and liquid discharge apparatus

When cleaning is performed to remove kogation, which is deposited on a heat acting portion, by causing an electrochemical reaction through application of a voltage between an upper electrode and an opposing electrode, a wiring located at a periphery of the opposing electrode occludes hydrogen generated during the cleaning, thereby causing hydrogen embrittlement. A unit configured to heat the wiring connected to the opposing electrode is provided, and is driven during the cleaning or after the cleaning, to thereby force hydrogen out of the wiring. Thus, the hydrogen embrittlement of the wiring is suppressed.

Liquid ejection head, method of cleaning the same, and recording apparatus

A method for cleaning a liquid ejection head, including a flow path forming member forming a liquid flow path, a heat generating resistive element, and a coating layer covering the heat generating resistive element and in contact with the liquid, in which the heat generating resistive element is made to generate heat and the liquid is made to be ejected from ejection ports, the method including: applying a voltage to the coating layer to produce an electrochemical reaction between the coating layer and the liquid, and causing the coating layer to be eluted into the liquid, thereby removing kogation deposited on the coating layer; and causing the heat generating resistive element to generate heat and causing the liquid to be ejected from the ejection ports while a voltage is applied to the coating layer continuously or intermittently, thereby eliminating air bubbles generated due to the electrochemical reaction.

Method for cleaning liquid ejection head

A liquid discharge head has a chamber wall member forming a liquid chamber and a discharge head substrate containing a laminate of a base substrate having a surface for an element generating energy for discharging liquid. A first and second layer is formed contacting the wall. The second layer has adhesiveness with the chamber wall member higher than adhesiveness of the first layer, forming the liquid chamber with the chamber wall member. The first layer has a portion exposed from the second layer as viewed from a first direction orthogonal to the surface and contacting the chamber wail member at a position distant from the liquid chamber in a second direction orthogonal to the inner surface of the wall relative to a portion where the wall and second layer contact, and the length in the second direction of the portion of the first layer is 0.3 &#x3bc;m or more.

Liquid discharge head and method for producing liquid discharge head

A liquid ejection head includes a substrate and a flow path forming member. Energy generating elements that generate energy with which a liquid is ejected are formed on the substrate. The flow path forming member is disposed on the substrate and a flow path which encloses the energy generating elements is formed using the flow path forming member. Plural ejection ports that are in communication with the flow path are formed in the flow path forming member. A groove portion extending obliquely with respect to an X direction in which adjoining ejection ports are arranged is formed between the adjoining ejection ports in the flow path forming member.

Liquid ejection head, liquid ejecting apparatus, and method for manufacturing liquid ejection head

A method of cleaning a liquid discharge head having a substrate provided with a supply port, a heat-generating resistor covered with a covering layer, a liquid chamber forming member configured to form a liquid chamber, and at least one electrode and being configured to discharge liquid supplied to the liquid chamber from the supply port by causing the heat-generating resistor to generate heat, includes applying a voltage to the covering layer and the electrode to cause an electrochemical reaction between the covering layer and the liquid and dissolve the covering layer into the liquid to remove kogations accumulated on the covering layer, in which the covering layer and the electrode to which the voltage is to be applied are not provided in the same liquid chamber having the same cross-sectional area in a direction from the covering layer toward the electrode.

Method of cleaning liquid discharge head

A liquid discharge head includes a substrate and a flow-path-forming member that forms a plurality of flow paths and discharge ports that are in communication with the flow paths on the substrate. Liquid is to be discharged from the discharge ports. A space is formed between the plurality of flow paths and is filled with a filling material. In the case where a direction in which the liquid is to be discharged from the discharge ports is an upward direction, a top surface of the filling material is positioned at the same height as a face surface of the flow-path-forming member or is positioned higher than the face surface of the flow-path-forming member in the upward direction.

Liquid discharge head and method of manufacturing the same

A method for cleaning a liquid ejection head which includes applying a voltage to a coating layer of the liquid ejection head to cause the coating layer to be eluted in a liquid so that kogation deposited on a coating layer is removed. When removing kogation deposited on the coating layer, temperatures of the liquids in the liquid chambers are selectively changed among a plurality of liquid chambers.

A process for producing a liquid ejection head including a silicon substrate having a first surface and a second surface that is a surface on an opposite side to the first surface, an ejection energy generating element which is formed on a side of the first surface side and generates energy for ejecting a liquid, a cavity formed in the second surface and a liquid supply port which is formed in a bottom part of the cavity and communicates with the first surface, including, in the following order: (1) forming the cavity in the second surface of the silicon substrate by a first crystal anisotropic etching; (2) forming a chemical leading hollow in a slope of the cavity; (3) expanding the cavity by a second crystal anisotropic etching; and (4) forming the liquid supply port in a bottom face of the cavity by dry etching with the use of an ion.

Process for producing a liquid ejection head

Provided is an ink jet recording head, including: an ink ejection portion, in which heat is applied to ink supplied inside thereof, thereby providing the ink with a pressure for ejecting the ink outside; a substrate having a first surface on which the ink ejection portion is provided and a second surface on an opposite side to the first surface, the second surface having at least one recess; and a heat radiation member for releasing heat outside, the heat being transmitted from the ink ejection portion to the substrate, the heat radiation member having a protrusion with a shape corresponding to a shape of the recess, the protrusion being embedded in the recess so that the protrusion is provided in direct contact with the recess.

Ink jet recording head and method of producing the same

A card type optical transceiver module includes: an optical receptacle having a photoelectric component for converting electrical signals into optical signals and optical signals into electrical signals, an electrical connector electrically connected to an electronic device, a motherboard and a childboard which are separately formed and electrically connect the optical receptacle and the electrical connector, a first cutaway portion provided in the motherboard, and a group of pins electrically connect the boards. The optical receptacle is supported in a housing forming an outer contour of the module. The first cutaway portion accepts the optical receptacle inside to avoid interference between the optical receptacle and the motherboard. The childboard is supported by the housing, and the motherboard is supported by the group of pins and incorporated in the housing, and the electrical connector is provided on an edge surface of the housing.

Card type optical transceiver module

An optical waveguide module in which transmitted signal light emitted from a laser light-emitting element passes through a first optical waveguide and a second optical waveguide to strike a transmitting/receiving medium such as an optical fiber, and a signal light from the transmitting/receiving medium passes through the second optical waveguide and is received by a light-receiving element , the optical waveguide module comprising, a first light-blocking resin covering part , which covers a light-emitting coupling part coupling the laser light-emitting element and the first optical waveguide , and a second light-block resin covering part , which covers a light-receiving coupling part coupling the light-receiving element and the second optical waveguide

Growing community of inventors

Tokyo, Japan

Akio Goto