Patents by Inventor Takashi Ochiai
Takashi Ochiai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8211984Abstract: Provided are a ring-opening metathesis polymer and a hydrogenated product thereof that are useful as materials for an optical component, and a method for preparation thereof. The present invention relates to a ring-opening metathesis polymer comprising at least repeating structural units [A] represented by the following General Formula [1] and repeating structural units [B] represented by the following General Formula [2] at a constitutional molar ratio [A]/[B] of 0.1/99.9 to 100/0. The present invention relates to a ring-opening metathesis polymer comprising at least repeating structural units [A] represented by the following General Formula [1] and repeating structural units [B] represented by the following General Formula [2] at a constitutional molar ratio [A]/[B] of 0.1/99.9 to 100/0.Type: GrantFiled: January 17, 2007Date of Patent: July 3, 2012Assignee: Mitsui Chemicals, Inc.Inventors: Tadahiro Sunaga, Yuichi Okawa, Takashi Ochiai, Keiichi Ikeda
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Publication number: 20120127535Abstract: An image processing apparatus for performing screen processing on input image data via passes may include a screen processing unit, a detection unit, and a correction unit. The screen processing unit receives image data as received image data and performs screen processing on the received image data to produce screen-processed image data. The detection unit detects a difference of low frequency components between the received image data and the screen-processed image data. The correction unit corrects the screen-processed image data based on a difference detected by the detection unit. On subsequent passes, a process of at least one of the screen processing unit, the detection unit, and the correction unit is repeated to convert the input image data to screen-processed image.Type: ApplicationFiled: November 4, 2011Publication date: May 24, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Takashi Ochiai, Koji Fuse
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Publication number: 20120101289Abstract: It is an object of the present invention to provide a novel organometallic compound functioning usefully as a chain transfer agent and the like in polymerization reaction of a double-bond containing compound. The present invention provides an organometallic compound represented by the following general formula (1) and a production method thereof.Type: ApplicationFiled: June 30, 2010Publication date: April 26, 2012Inventors: Takashi Ochiai, Haruyuki Makio
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Patent number: 8143429Abstract: A process for synthesizing an organic transition metal complex compound with an atom group having an electron-donor ability, in an industrially and economically advantageous manner, without a compound having a proton-donor ability being a metal salt, and a metathesis catalyst produced with the use of the above process, are provided. A process for producing an organic transition metal complex compound in which an atom group having an electron-withdrawing ability can be converted into an atom group having a stronger electron-donor ability, by contacting an compound having a proton-donor ability with the organic transition metal complex compound with an atom group having an electron-withdrawing ability, in the presence of an basic compound, and a metathesis catalyst of which the content of an alkali metal is reduced, and which is obtainable with the use of the above process, are provided.Type: GrantFiled: October 17, 2006Date of Patent: March 27, 2012Assignee: Mitsui Chemicals, Inc.Inventors: Takashi Ochiai, Yuichi Okawa, Tadahiro Sunaga
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Publication number: 20120033277Abstract: An image processing apparatus may include a first screen processing unit, a moiré component calculation unit, a first correction unit, and a second screen processing unit. The first screen processing unit performs screen processing on image data to form screen processed image data. The moiré component calculation unit calculates an original moiré component that corresponds to a low-frequency component of the screen processed image data and a low-frequency component of the image data. The first correction unit corrects the image data based on a calculated moiré component. The second screen processing unit performs the screen processing on the corrected image data.Type: ApplicationFiled: July 26, 2011Publication date: February 9, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Koji Fuse, Takafumi Niida, Tomokazu Yanai, Takashi Ochiai
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Publication number: 20110298850Abstract: In order to control smoothness depending on accumulation of a pigment ink in the multi-pass printing, an information processing apparatus for an image forming apparatus that forms an image on the same area in a print medium by a plurality of printing scans with the same pigment ink, the information processing apparatus comprises an input unit that receives inputs of image data and a target gloss level; a storage unit that stores a plurality of pattern sets including a recording pattern for each of the printing scans; and a generation unit that generates pattern data corresponding to the recording patterns by selectively using the pattern sets based on the image data and the target gloss level; wherein at least one of the plurality of pattern sets has a different thinning ratio in the recording pattern for each of the printing scans on the same area.Type: ApplicationFiled: May 6, 2011Publication date: December 8, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Takashi Ochiai
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Publication number: 20110267394Abstract: The relationship between the applying amounts of colored inks and the thickness of the layer of a color material formed on a recording medium, and the relationship between the applying amount of uncolored ink and the thickness of the layer of the color material formed on the recording medium are acquired. Based on the relationships between the applying amounts and the thickness of the layer of the color material, the applying amounts of colored inks and the applying amount of uncolored ink are determined to substantially uniform the thickness of the layer of the color material when forming an image on a recording medium. A color separation table for color-separating image data is generated based on the applying amounts of colored inks and the applying amount of uncolored ink.Type: ApplicationFiled: February 8, 2010Publication date: November 3, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Takashi Ochiai, Takuya Shimada, Hiromitsu Nishikawa, Takayuki Jinno
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Patent number: 8038247Abstract: A recording apparatus for recording an image on a recording medium by scanning the recording medium with a recording head for discharging ink includes a thinning unit configured to thin data for discharging ink by the recording head on a plurality of areas formed by dividing scanning regions including at least a first scanning region and a second scanning region to be recorded each by one scan of the recording head in the scan direction, and a recording head drive unit configured to discharge ink by driving the recording head based on data which has been thinned by the thinning unit, wherein a boundary between the areas in the first scanning region is located in a different position from that of a boundary between areas in the second scanning region, which is adjacent to the first scanning region, in the scan direction.Type: GrantFiled: January 29, 2009Date of Patent: October 18, 2011Assignee: Canon Kabushiki KaishaInventors: Hiromitsu Yamaguchi, Tsuyoshi Shibata, Takashi Ochiai, Eri Noguchi, Makoto Akahira
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Publication number: 20110194760Abstract: In generating image data for use in image formation by multi-pass recording, the position of a pixel of interest to be color separated relative to a recording region corresponding to the conveyance distance of a recording medium in one pass of the multi-pass recording is determined, a color separation table corresponding to the result of the determination is selected, and image data of the pixel of interest is color separated using the selected color separation table.Type: ApplicationFiled: January 20, 2011Publication date: August 11, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Takashi Ochiai, Kaori Taya, Takayuki Jinno, Yoshinori Shindo
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Patent number: 7963623Abstract: An ink jet printing apparatus and an ink jet printing method are provided which use a printing head having a plurality of ejection opening arrays and enable high quality printing without causing uneven density in a conveying direction. For this purpose, by providing a plurality of ejection opening arrays to chips constituting the printing head and changing data assigning ratio of each ejection opening array, deviation in impact positions depending on the distance between the ejection opening arrays becomes inconspicuous.Type: GrantFiled: May 1, 2009Date of Patent: June 21, 2011Assignee: Canon Kabushiki KaishaInventors: Takashi Ochiai, Hitoshi Tsuboi, Satoshi Wada
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Publication number: 20110043561Abstract: An information processing apparatus is provided for a recording apparatus that records an image on a recording medium using a recording head. The recording head includes recording element arrays arranged in parallel, and in which recording elements that discharge recording material are aligned. The information processing apparatus includes an acquisition unit and a setting unit. The acquisition unit acquires displacement information of an impact position of the recording material recorded by at least one of the recording element arrays. The setting unit sets a distribution rate of the recording material for each recording element array according to the displacement information.Type: ApplicationFiled: August 10, 2010Publication date: February 24, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Koji Fuse, Takashi Ochiai
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Patent number: 7837283Abstract: In a multipass printing system, a quality image is printed even when the number of passes is reduced to increase a printing speed. For this purpose, in a multipass printing system which repetitively alternates a printing scan, which causes the print head to eject ink from the nozzles as it moves in the main scan direction, and a feeding operation, which feeds a print medium in a sub scan direction, the feed distance of the print medium is set according to a density of an image being printed on the print medium.Type: GrantFiled: March 29, 2005Date of Patent: November 23, 2010Assignee: Canon Kabushiki KaishaInventors: Eri Goto, Tsuyoshi Shibata, Hiromitsu Yamaguchi, Takashi Ochiai
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Patent number: 7726763Abstract: An ink jet printing apparatus and an ink jet printing method can enable high quality printing, without causing uneven thickness in a conveying direction, using a printing head having a plurality of ejection port arrays. To this end, the printing is performed by making distribution ratios of printing in each ejection port array in the printing head different from one another according to gradation.Type: GrantFiled: December 4, 2007Date of Patent: June 1, 2010Assignee: Canon Kabushiki KaishaInventors: Takashi Ochiai, Hitoshi Tsuboi, Satoshi Wada
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Patent number: 7726767Abstract: There is provided an ink jet printing apparatus capable of printing an image having few joining stripes. Dot count is performed regarding an image printed in the vicinity of the joining stripe, and print duty is judged. Next, a dot count value is determined from the print duty. Then, a print data correction rank is determined beforehand in accordance with properties of the printing apparatus, and image data to be printed in the vicinity of the joining stripe is added or thinned out. Thus, an image can be printed which has few black and white stripes.Type: GrantFiled: June 13, 2007Date of Patent: June 1, 2010Assignee: Canon Kabushiki KaishaInventors: Eri Noguchi, Tsuyoshi Shibata, Hiromitsu Yamaguchi, Takashi Ochiai
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Publication number: 20100118318Abstract: An image recording apparatus acquires, from image data, gradation information in a region corresponding to a connected portion at which recording chips are overlapped with each other, sets, based on the acquired gradation information, control information for controlling recording rates of respective recording elements of a plurality of recording chips that are connected in an overlapped state, and according to the set control information, generates, from the image data, dot data for respective recording elements of the plurality of recording chips that are connected in the overlapped state.Type: ApplicationFiled: November 9, 2009Publication date: May 13, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Koji Fuse, Takashi Ochiai
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Publication number: 20090262372Abstract: Image data of a pixel of interest is inputted, diffusion data diffused from errors occurred by decrease of a tonal number of image data is added to the image data of the pixel of interest, the tonal number of the image data of the pixel of interest, to which the diffusion data has been added, is decreased using an error diffusion method or minimized average error method, and an error occurred in the decrease of the tonal number for the pixel of interest is diffused to pixels close to the pixel of interest. Further, the errors occurred by the decrease of the tonal number of the image data in a predetermined image region are integrated as an integrated error, and a threshold value used in the error diffusion method or minimized average error method is set based on the image data of the pixel of interest and the integrated error.Type: ApplicationFiled: April 14, 2009Publication date: October 22, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Shoei Moribe, Takashi Ochiai
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Patent number: 7585039Abstract: An ink jet printing apparatus and an ink jet printing method are provided which use a printing head having a plurality of ejection opening arrays and enable high quality printing without causing uneven density in a conveying direction. For this purpose, by providing a plurality of ejection opening arrays to chips constituting the printing head and changing data assigning ratio of each ejection opening array, deviation in impact positions depending on the distance between the ejection opening arrays becomes inconspicuous.Type: GrantFiled: December 10, 2007Date of Patent: September 8, 2009Assignee: Canon Kabushiki KaishaInventors: Takashi Ochiai, Hitoshi Tsuboi, Satoshi Wada
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Patent number: 7585040Abstract: A printing apparatus divides printing elements of a printhead into blocks, time-divisionally drives the printing elements, and prints a halftone image on a printing medium in accordance with a result obtained by performing digital-halftoning for input multi-valued image data in each matrix of a predetermined size. The apparatus includes a scanner for reciprocally scanning the printhead, a conveyor for conveying the printing medium in a direction different from a scanning direction of the printhead, and a controller for printing a halftone image in each matrix. An arrayed direction of the printing elements is the convey direction of the conveyor. The controller sets a size of the block to be equal to or an integral multiple of a size of the matrix in the convey direction. The digital-halftoning increases the number of dots from a center of the matrix as a density expressed by the multi-valued image data increases.Type: GrantFiled: December 7, 2005Date of Patent: September 8, 2009Assignee: Canon Kabushiki KaishaInventors: Takashi Ochiai, Tsuyoshi Shibata, Hiromitsu Yamaguchi, Eri Goto
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Publication number: 20090219340Abstract: An ink jet printing apparatus and an ink jet printing method are provided which use a printing head having a plurality of ejection opening arrays and enable high quality printing without causing uneven density in a conveying direction. For this purpose, by providing a plurality of ejection opening arrays to chips constituting the printing head and changing data assigning ratio of each ejection opening array, deviation in impact positions depending on the distance between the ejection opening arrays becomes inconspicuous.Type: ApplicationFiled: May 1, 2009Publication date: September 3, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Takashi Ochiai, Hitoshi Tsuboi, Satoshi Wada
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Publication number: 20090215974Abstract: Provided are a ring-opening metathesis polymer and a hydrogenated product thereof that are useful as materials for an optical component, and a method for preparation thereof. The present invention relates to a ring-opening metathesis polymer comprising at least repeating structural units [A] represented by the following General Formula [1] and repeating structural units [B] represented by the following General Formula [2] at a constitutional molar ratio [A]/[B] of 0.1/99.9 to 100/0. The present invention relates to a ring-opening metathesis polymer comprising at least repeating structural units [A] represented by the following General Formula [1] and repeating structural units [B] represented by the following General Formula [2] at a constitutional molar ratio [A]/[B] of 0.1/99.9 to 100/0.Type: ApplicationFiled: July 17, 2007Publication date: August 27, 2009Applicant: MITSUI CHEMICALS INCInventors: Tadahiro Sunaga, Yuichi Okawa, Takashi Ochiai, Keiichi Ikeda