Canon Kabushiki Kaisha

Nikon Corporation

Makoto Takagi

Atsushi Kandori

Masao Majima

Ryo Kasai

Nobuyuki Hirayama

Kengo Umeda

Nobuyuki Suzuki

Hidemasa Mizutani

Masataka Sakurai

Kenichi Nagae

Tatsuhito Goden

Kazunari Fujii

Takahiro Akiyama

Chienliu Chang

Sadayoshi Sakuma

Hidenori Yamato

Toru Eto

Keisuke Yamamoto

Kazuo Yamazaki

Takatsuna Aoki

Toshiyuki Ogawa

Masanobu Ohmura

Wataru Endo

Kazuhiko Kato

Tomohiko Takayama

Yoshihiko Fujimori

Norio Fujii

A liquid discharge head substrate includes a substrate, a plurality of liquid discharge elements, a liquid supply port, temperature detection elements, and a driving wiring pattern. The plurality of liquid discharge elements are arranged in a first direction on a major surface of the substrate to discharge a liquid. The liquid supply port is provided in the substrate and is spaced apart from the plurality of liquid discharge elements in a second direction crossing the first direction to supply the liquid to the plurality of liquid discharge elements. The temperature detection elements are arranged on the substrate to detect a temperature. The driving wiring pattern extends in the second direction to an end portion of the substrate to drive the temperature detection elements, is connected to an external connection terminal, and is shared between the temperature detection elements.

Liquid discharge head substrate, liquid discharge head, and liquid discharge apparatus

A liquid discharge head includes a plurality of discharge elements, a plurality of driving elements, a plurality of control circuits, a first ground wiring and a first power supply wiring configured to supply power to the plurality of discharge elements and the plurality of driving elements, and a second ground wiring and a second power supply wiring configured to supply power to the plurality of control circuits. The first ground wiring and the first power supply wiring include, in a first conductive layer of a plurality of conductive layers, a first wiring group extending in a first direction, and in a second conductive layer, a second wiring group extending in a second direction which intersects with the first direction. The second power supply wiring is arranged on one of the first conductive layer and the second conductive layer.

Liquid discharge head

An element substrate of a liquid ejection head includes: a base material; an insulating film positioned on the base material; a heating resistance element for generating heat energy for ejecting a liquid; a protective film for covering the heating resistance element; a first electrical wiring layer arranged in the insulating film, for supplying a current to the heating resistance element; a second electrical wiring layer arranged on a layer different from the first electrical wiring layer in the insulating film, for supplying a current to the heating resistance element; and at least one connecting member extending into the insulating film to connect the first electrical wiring layer and the heating resistance element, for causing the current to flow in a first direction, the heating resistance element including a connecting region, extending in a second direction intersecting the first direction, to which the at least one connecting member is connected.

Element substrate and liquid ejection head

Provided is an ultrasonic detection device including: a capacitive electromechanical transducer including a cell that includes a first electrode and a second electrode disposed so as to oppose with a space; a voltage source for developing a potential difference between the first electrode and the second electrode; and an electric circuit for converting a current, which is caused by a change in electrostatic capacitance between the first electrode and the second electrode due to vibration of the second electrode, into a voltage, in which the capacitive electromechanical transducer provides an output current with a high-pass characteristic having a first cutoff frequency with respect to a frequency, the electric circuit provides an output with a low-pass characteristic having a second cutoff frequency with respect to the frequency, and the second cutoff frequency is smaller than the first cutoff frequency.

Ultrasonic detection device and ultrasonic diagnostic device

A liquid discharging head substrate, in which driving elements for driving discharging elements are arranged, the substrate comprising a conductive film, for supplying a power-supply voltage to the driving elements, provided to cover the driving elements in a plan view, and a power-supply pad, for receiving the power-supply voltage, provided at an end of the substrate in the plan view, wherein the conductive film has an outer shape that is not linearly symmetrical in the plan view, openings are formed in the conductive film, the conductive film has a first portion and a second portion whose impedance from the pad in the conductive film is smaller than that of the first portion, and the substrate further comprises a conductive pattern connecting the first portion and the second portion.

Liquid discharging head substrate, liquid discharging head, and liquid discharging apparatus

A semiconductor device is provided. The device comprises discharge units each including a discharge element and a driving unit configured to drive the discharge element, and a terminal unit configured to supply power to the discharge units via a wiring line. The discharge units include a first discharge unit including a first discharge element of the discharge elements and a first driving unit of the driving units and a second discharge unit including a second discharge element of the discharge elements and a second driving unit of the driving units. A length of a current path from the terminal unit to the first discharge unit is longer than a length of a current path from the terminal unit to the second discharge unit and a resistance of the first driving unit is lower than a resistance of the second driving unit.

Semiconductor device, liquid discharge head, liquid discharge head cartridge, and printing apparatus

A print element substrate and a printing device which can suppress lowering of an image quality are provided. For that purpose, a heater, a sub-heater, and a driver are arranged in each heating area, and a plurality of the heating areas is arrayed on the print element substrate.

Print element substrate and printing device

Provided is a control apparatus and control method for a capacitive electromechanical transducer with small decrease in transmission/reception efficiency, and with sets of transmission/reception characteristics with different frequency ranges. The apparatus has cells each including first and second electrodes facing each other via a gap; includes a driving/detecting unit and an external stress applying unit. The driving/detecting unit performs at least one of causing the second electrode to vibrate and transmit elastic waves by generating an AC electrostatic attractive force between the electrodes, and detecting a change of capacitance between the electrodes, the change being caused by the second electrode vibrating upon receipt of elastic waves. The external stress applying unit changes the external stress applied to the second electrode. The driving/detecting unit adjusts frequency characteristics by changing a parameter defining the frequency domain used in a transmitting/receiving operation, corresponding to the change of the external stress.

Control apparatus for capacitive electromechanical transducer, and method of controlling the capacitive electromechanical transducer

According to an aspect of the present disclosure, a liquid discharge head substrate includes a substrate having a parallelogram shape, a plurality of liquid discharge elements disposed on the substrate, a plurality of power supply terminals disposed along a first side of the substrate, and a first wiring, having a lattice shape, connected to the plurality of power supply terminals. On the substrate, the first side and a third side form an obtuse angle, and the first side and a fourth side form an acute angle. In the plurality of power supply terminals, the number of power supply terminals at positions closer to the third side than to the fourth side is larger than the number of power supply terminals at positions closer to the fourth side than to the third side.

Liquid discharge head substrate, liquid discharge head, and recording apparatus

The present invention relates to an electromechanical transducer capable of arbitrarily varying the amount of deflection of a vibrating membrane for every element. The electromechanical transducer includes a plurality of elements including at least one cell that includes a first electrode and a second electrode opposed to the first electrode with a gap sandwiched therebetween and a direct-current voltage applying unit configured to be provided for each element and to separately apply a direct-current voltage to the first electrodes in each element. The first electrodes and the second electrodes are electrically separated for every element.

Capacitive electromechanical transducer

A liquid discharge component includes discharge units arrayed to form columns each extending in a first direction and rows each extending in a second direction. Each discharge unit includes an element configured to apply energy to a liquid, and a driving circuit configured to drive the element. The component includes a logic circuit configured to control the driving circuit. The number of the columns is smaller than the number of the plurality of rows. The logic circuit includes shift registers configured to transfer, in the second direction, data to be supplied to the driving circuits. The shift register is configured to supply data to the discharge units of at least one row; the shift register includes flip-flops arranged in the second direction.

Liquid discharge component and liquid discharge apparatus

A liquid discharging substrate on which a plurality of discharging elements are arrayed, comprising a driving portion configured to drive the plurality of discharging elements, a detecting portion including a metal pattern arranged via an insulating member on a corner region of the substrate, and configured to detect damage to the corner region when the metal pattern breaks, and a controlling portion configured to stop the driving portion when the detecting portion detects that the corner region has been damaged.

Liquid discharging substrate, printhead, and printing apparatus

A liquid discharge component includes discharge units arrayed to form columns each extending in a first direction and rows each extending in a second direction. Each discharge unit includes an element configured to apply energy to a liquid, and a driving circuit configured to drive the element. The component includes a logic circuit configured to control the driving circuit. The number of the columns is smaller than the number of the plurality of rows. The logic circuit includes shift registers configured to transfer, in the second direction, data to be supplied to the driving circuits. The shift register is configured to supply data to the discharge units of at least one row, the shift register includes flip-flops arranged in the second direction.

A capacitive detection type electro-mechanical transducer comprises; a cell formed by a first electrode arranged on a substrate and a second electrode arranged on a vibration film, and a detection circuit for detecting a displacement of the vibration film, based on a capacity change between the first and second electrodes, wherein a plurality of the cells are classified into a plurality of groups, each one includes at least two cells, and the first electrodes or the second electrodes of the cells of the same one group are commonly connected to the same one detection circuit, and an addition circuit for adding, into single information, signals from the plurality of detection circuits corresponding to the plurality of groups, and for outputting the information, and a capacitive load for each one of the detectors are formulated to be dispersedly arranged.

Growing community of inventors

Yokohama, Japan

Makoto Takagi