Canon Kabushiki Kaisha

Masaki Inaba

Akira Goto

Tsuyoshi Orikasa

Kimiyuki Hayasaki

Haruhiko Terai

Toshio Kashino

Seiichiro Karita

Yutaka Koizumi

Takayuki Ono

Shin Ishimatsu

Kouichi Omata

Shuji Koyama

Masami Ikeda

Toshinori Hasegawa

Masao Furukawa

Kiyomitsu Kudo

Miki Ito

Masahiro Suzuki

Yoshiyuki Imanaka

Akio Saito

Hiroshi Sugitani

Tatsuo Furukawa

Makiko Kimura

Masaaki Izumida

Masami Kasamoto

Yuji Kamiyama

Hiroyuki Maru

Hideaki Kishida

Tomoaki Higo

Takashi Ohba

Hisashi Fukai

Toshio Tsuda

Fumio Ichikawa

Shuichi Katao

Tsuyoshi Baba

Wataru Takahashi

Tsutomu Abe

Takayuki Yamada

Ryoji Inoue

Takashi Watanabe

Kazuaki Masuda

Kazuhiko Kobayashi

Hiroki Tajima

Yohei Sato

Shigeki Fukui

Kiyomi Aono

Masayuki Nishiwaki

Ken Hosaka

Tsunenobu Satoi

Yoshihiko Yoshihara

Hiroshi Haruyama

Miki Itoh

Hiroshi Kohno

Akio Saitoh

An information processing apparatus includes an obtaining unit configured to obtain information of a plurality of labels applied to the learning data by a plurality of users, information regarding reliability of each applied label itself, and information regarding reliability of a user who applies the relevant label, wherein the information of the label is information regarding a result to be recognized in a case where the predetermined recognition is performed on the learning data and a determination unit configured to determine a label to the learning data from among the plurality of labels based on the reliability of the label itself and the reliability of the user who applies the relevant label.

Information processing apparatus, information processing method, and storage medium

A plurality of recognition positions each recognized by a recognizer as a position of a target object on an input image are acquired. At least one representative position is obtained by performing clustering for the plurality of recognition positions. The representative position is edited in accordance with an editing instruction from a user for the representative position. The input image and the representative position are saved as learning data to be used for learning of the recognizer.

Image processing apparatus, image processing method, and non-transitory computer-readable storage medium

An information processing apparatus comprises an image generation unit configured to generate, based on a first image in which a transparent object having transparency is captured and a second image in which a target object is captured, a reproduced image in which the target object which is at least partially covered by the transparent object is reproduced; and a creation unit configured to create, based on the reproduced image, a model for recognizing the target object which is at least partially covered by the transparent object.

Information processing apparatus, object recognition apparatus, method of controlling information processing apparatus, and storage medium

An information processing apparatus includes an image acquisition unit configured to acquire an image obtained by imaging a target object onto which a pattern having a bright portion and a dark portion is projected by a projection unit, an allocation unit configured to allocate, to a pixel in the image, a label corresponding to luminance of the pixel by referring to a characteristic of the pattern, and a correspondence relationship derivation unit configured to derive a correspondence relationship between a position of the pattern in a projection plane of the projection unit and a position of the pattern in the acquired image and a three-dimensional coordinate derivation unit configured to derive three-dimensional coordinates of a surface of the target object based on the derived correspondence relationship.

A common recess, grooves, and common recess and/or column members in the grooves are formed on a base board at the same time, and such board is made a second base board, which is coupled to a first base board on which elements for liquid discharging energy are formed; hence obtaining an ink jet recording head provided with a filter unit in an arbitrary position in the region formed by the ink paths and the common liquid chamber. The filter unit can be processed by a single processing in the ink paths and/or the common liquid chamber to make it possible to prevent disabled discharge from taking place due to dust particles intermingled at the time of head manufacture. In this way, the discharging stability is enhanced, making a high-speed printing possible. A workpiece is efficiently processed by a single processing which is performed to process a three-dimensional configuration with respect to the direction in which the laser beam is irradiated.

Laser process for making a filter for an ink jet

A method for manufacturing a liquid-discharging recording head can prevent deviation in the dimensions and the pitch of grooves, serving as liquid channels, and holes, serving as discharging ports, and generation of burrs around discharging ports while maintaining the grooves and the holes to desired sizes and without increasing a time required for the processing when forming the grooves and the holes by projecting a laser beam. When performing ablation processing of the liquid-channel grooves or the discharging ports in a top-plate blank by projecting the laser beam, the processing is performed by changing the energy density per unit time of the laser beam continuously or stepwise by adjusting the oscillation voltage or the oscillation frequency of the laser beam, attenuating the laser beam, or moving a substance to be processed along the optical axis.

Method for manufacturing a liquid-discharging recording head

A printing head has a plurality of heater boards, each of which includes a shift register to which printing data and selection data for selecting preheating pulse signals are applied as inputs, a latch circuit for latching the printing data, a selection-data latch circuit for latching the selection data, a selection circuit for selecting any one of a plurality of preheating pulse signals inputted in accordance with the latched selection data, and a plurality of heating resistors driven by the printing data or preheating pulse signals. Correction data, obtained by a head correcting apparatus, for performing printing at an average density by correcting the characteristics of each heater board is stored in a memory of the printing head. A printing apparatus decides the selection data in accordance with the correction data and sets the selection data in the selection-data latch circuit.

Printing head, printing method and apparatus using same, and apparatus and method for correcting said printing head

According to the present invention, a liquid jet recording head assembly method comprises the steps of assembling a pressing member with a reference member to which an element substrate is fixed, charging a forcing spring provided for the pressing member to obtain a gap through which a grooved top plate can be inserted, assembling, by means of the gap, the grooved top plate with the element, and releasing the charging of the forcing spring and using the force exerted by the forcing spring to press the grooved top plate against the element substrate, so as to secure the grooved top plate to the element substrate.

Liquid jet recording head and assembling method therefor

A method for manufacturing liquid jet recording heads, each provided with discharge ports to discharge liquid, a discharge port plate having the discharge ports arranged therefor, and performing ablation processing of holes becoming the discharge ports by use of a mask for projecting the image of the mask onto the discharge port plate with coherent laser beam as light source, comprises the following steps of forming water-repellent layer on the surface of the discharge port plate on the liquid discharge side; and of performing the ablation processing by irradiating the laser beam from the reverse side of the surface of discharge port plate having the water-repellent layer formed thereon in a state of such surface being arranged to be under the atmosphere containing fluorine atom, and forming the discharge ports, at the same time, enabling the substance containing the fluorine atom excited by the laser beam to adhere to the surface having the water-repellent layer formed thereon. In this manner, the throughput of product manufacture is enhanced without any provision of extra processing steps to remove the byproducts to be created by the irradiation of laser beam, hence contributing to a significant cost reduction of the manufacture of liquid jet recording heads.

Method for manufacturing liquid jet recording heads and a head manufactured by such method of manufacture

An ink jet recording head includes a plurality of ink ejection outlets, a first member having a plurality of grooves in fluid communication with the ejection outlets, respectively, a second member having a plurality of energy generating elements for producing energy for ejecting ink in the grooves through the ejection outlets, and a clamping unit for clamping the first member with the second member to constitute ink passages with the grooves, wherein the clamping unit has a plurality of pressure regulating mechanism pressure regulating mechanisms, which are independently operable.

Ink jet recording apparatus

An apparatus and method for correcting printing characteristics of a full-line printhead, and producing a high-printing quality printhead at high manufacturing yield, a corrected printhead by this apparatus, and a printer employing this printhead are disclosed. According to this method, an image is printed on a printing medium by using double pulses obtained based on fluctuation of resistance of each printing unit of a printhead, and a reference OD value is determined from an OD value histogram of the printed image. A preheating pulse width is selected, based on OD values of n printed images obtained by changing the preheating pulse width n times and the reference OD value, such that an OD value on each printing element is equal or close to the reference OD value. For example, assuming that the reference value is 0.43, a preheating pulse width on printing element No. 3 is 0.875.mu. sec.

Method and apparatus for correcting printhead, printhead corrected by

Printing head, printing method and apparatus using same, and apparatus

A high-yield printhead where density unevenness is surely corrected taking into consideration various factors related to manufacturing processes of the printhead, a printer utilizing the printhead, and an apparatus and method for correcting print density unevenness by the printhead, are provided. According to the method, a plurality of correction tables generated based on the data reflecting the various factors related to manufacturing processes of the printhead are prepared in advance. A test print pattern is printed by using a full-line printhead having a memory for storing correction data, and a tendency of density distribution of the printed pattern image is analyzed. On the basis of the tendency of the density distribution obtained as a result of the analysis, the most appropriate correction table is selected from the plurality of stored correction tables. Then, correction data which is used for suppressing density unevenness is generated on the basis of the selected most appropriate correction table, and the generated correction data is transmitted to the memory of the printhead.

Method and apparatus for correcting print density by printhead,

A laser working method which can easily and accurately work a fine and complicated shape by irradiation of a laser beam is provided. When a plurality of channel grooves are laser worked on a second board constituting a liquid jet recording head and projections are laser worked on the joint surface of groove walls between the channel grooves and the like, the projections are first worked and formed by irradiating the laser beam through a first mask pattern of a high space frequency arranged by transmitting portions to work the projections and light shielding portions. After that, the channel grooves are worked and formed by irradiating the laser beam through a second mask pattern of a low space frequency arranged by transmitting portions to work the channel grooves and light shielding portions. The formation of a secondary product due to the laser working can be reduced. Even when the laser working secondary product exists, the influence by the secondary product can be reduced and the working can be performed. A fine and complicated shape can be stably and cheaply worked.

Manufacturing method of liquid jet recording head using a laser working

A laser processing method comprises at least one of a laser light source, a beam shaping optical system for shaping laser beams, a mask having specific patterns corresponding to the processing configuration of a work, an illumination optical system for illuminating the mask, and a projection optical system for focusing the pattern images of the mask on the processing surface of the work by a specific magnification. This mask is provided with an extinct portion smaller than the quotient of the resolution and specific magnification of the projection optical system. With the method thus arranged, a work can be processed to provide complicated three-dimensional grooves having irregularities in the direction of laser irradiation by one-time processing. Also, the extinct portions make it possible to easily and finely adjust the extinction so that the precision of work processing is enhanced.

Laser processing method, an ink jet recording head, and a system for

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Kawasaki, Japan

Masaki Inaba