Patents by Inventor Takashi Ebisawa
Takashi Ebisawa 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: 11127926Abstract: A method of manufacturing a display device having an organic EL device includes the steps of: forming an organic EL device over a substrate; and forming a protection film so as to cover the organic EL device. The protection film is made of a laminated film of a first insulating film containing Si, a second insulating film containing Al and a third insulating film containing Si. The step of forming the protection film includes the steps of: forming the first insulating film by a plasma CVD method so as to cover the organic EL device; forming the second insulating film over the first insulating film by an ALD method; and forming the third insulating film over the second insulating film by a plasma CVD method.Type: GrantFiled: November 27, 2016Date of Patent: September 21, 2021Assignee: THE JAPAN STEEL WORKS, LTD.Inventors: Keisuke Washio, Tatsuya Matsumoto, Junichi Shida, Takashi Ebisawa
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Patent number: 10987948Abstract: A controller performs control to: print a test pattern on a print medium, the test pattern including: a head reference straight line extending in a main scanning direction and printed by a reference print head; and head adjustment straight lines extending in the main scanning direction and printed by each of non-reference print heads at timings corresponding to timing adjustment values; and in response to input of information specifying the head adjustment straight line with a smallest print misalignment amount in the sub-scanning direction with respect to the head reference straight line for each of the non-reference print heads, determine, for each of the non-reference print heads, the timing adjustment value corresponding to the head adjustment straight line specified by the input information as an adjustment value of an ink ejection timing in the non-reference print head in normal printing.Type: GrantFiled: March 19, 2018Date of Patent: April 27, 2021Assignee: RISO KAGAKU CORPORATIONInventor: Takashi Ebisawa
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Patent number: 10833293Abstract: A method of manufacturing a display apparatus having an organic EL element includes: a step of forming the organic EL element over a substrate made of a flexible substrate; and a step of forming a protecting film 16 made of an inorganic insulating material so as to cover the organic EL element by using an ALD method. In the step of forming the protecting film 16, the protecting film 16 is formed by alternately performing a step of forming a high-density layer 16H by using an ALD method and a step of forming, by using an ALD method, a low-density layer 16L that has the same constituent element as the high-density layer 16H and has a lower density than the high-density layer 16H. The protecting film 16 has a layered structure made of one or more high-density layers 16H and one or more low-density layers 16L so that the low-density layer 16L and the high-density layer 16H are alternately layered so as to be in contact with each other.Type: GrantFiled: October 31, 2017Date of Patent: November 10, 2020Assignee: THE JAPAN STEEL WORKS, LTD.Inventors: Keisuke Washio, Tatsuya Matsumoto, Takashi Ebisawa, Junichi Shida
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Publication number: 20200238728Abstract: A controller performs control to: print a test pattern on a print medium, the test pattern including: a head reference straight line extending in a main scanning direction and printed by a reference print head; and head adjustment straight lines extending in the main scanning direction and printed by each of non-reference print heads at timings corresponding to timing adjustment values; and in response to input of information specifying the head adjustment straight line with a smallest print misalignment amount in the sub-scanning direction with respect to the head reference straight line for each of the non-reference print heads, determine, for each of the non-reference print heads, the timing adjustment value corresponding to the head adjustment straight line specified by the input information as an adjustment value of an ink ejection timing in the non-reference print head in normal printing.Type: ApplicationFiled: March 19, 2018Publication date: July 30, 2020Applicant: RISO KAGAKU CORPORATIONInventor: Takashi EBISAWA
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Publication number: 20200006706Abstract: A method of manufacturing a display apparatus having an organic EL element includes: a step of forming the organic EL element over a substrate made of a flexible substrate; and a step of forming a protecting film 16 made of an inorganic insulating material so as to cover the organic EL element by using an ALD method. In the step of forming the protecting film 16, the protecting film 16 is formed by alternately performing a step of forming a high-density layer 16H by using an ALD method and a step of forming, by using an ALD method, a low-density layer 16L that has the same constituent element as the high-density layer 16H and has a lower density than the high-density layer 16H. The protecting film 16 has a layered structure made of one or more high-density layers 16H and one or more low-density layers 16L so that the low-density layer 16L and the high-density layer 16H are alternately layered so as to be in contact with each other.Type: ApplicationFiled: October 31, 2017Publication date: January 2, 2020Inventors: Keisuke WASHIO, Tatsuya MATSUMOTO, Takashi EBISAWA, Junichi SHIDA
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Publication number: 20190263153Abstract: A controller controls first print timings in respective first print mechanisms of a first printer based on a first pulse signal outputted from a first encoder and controls second print timings in respective second print mechanisms of a second printer based on a second pulse signal outputted from a second encoder.Type: ApplicationFiled: February 19, 2019Publication date: August 29, 2019Applicant: RISO KAGAKU CORPORATIONInventors: Mamoru WAKABAYASHI, Takashi EBISAWA
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Patent number: 10235801Abstract: A method for adjusting the comfort level of a helmet includes the steps of acquiring head shape data by measuring a three-dimensional shape of a head of a wearer of a helmet, inputting inner surface shape data showing a three-dimensional shape of a helmet inner surface, acquiring space information showing a space between the head and the helmet inner surface on the basis of the head shape data and the inner surface shape data, and displaying additional images showing the space information on a display part by superimposing the additional images on i) a shape image showing the inner surface shape data or ii) the shape image showing the head shape data and the inner surface shape data.Type: GrantFiled: April 14, 2017Date of Patent: March 19, 2019Assignee: SHOEI CO., LTD.Inventor: Takashi Ebisawa
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Publication number: 20180053915Abstract: A method of manufacturing a display device having an organic EL device includes the steps of : forming an organic EL device over a substrate; and forming a protection film so as to cover the organic EL device. The protection film is made of a laminated film of a first insulating film containing Si, a second insulating film containing Al and a third insulating film containing Si. The step of forming the protection film includes the steps of: forming the first insulating film by a plasma CVD method so as to cover the organic EL device; forming the second insulating film over the first insulating film by an ALD method; and forming the third insulating film over the second insulating film by a plasma CVD method.Type: ApplicationFiled: November 27, 2016Publication date: February 22, 2018Inventors: Keisuke WASHIO, Tatsuya MATSUMOTO, Junichi SHIDA, Takashi EBISAWA
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Publication number: 20170301131Abstract: A method for adjusting the comfort level of a helmet includes the steps of acquiring head shape data by measuring a three-dimensional shape of a head of a wearer of a helmet, inputting inner surface shape data showing a three-dimensional shape of a helmet inner surface, acquiring space information showing a space between the head and the helmet inner surface on the basis of the head shape data and the inner surface shape data, and displaying additional images showing the space information on a display part by superimposing the additional images on i) a shape image showing the inner surface shape data or ii) the shape image showing the head shape data and the inner surface shape data.Type: ApplicationFiled: April 14, 2017Publication date: October 19, 2017Inventor: Takashi EBISAWA
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Patent number: 9594986Abstract: There is provided a distance calculator configured to calculate an amount of displacement of an inkjet head in the main scanning direction, and an inter-pixel distance between neighboring pixels adjacent in the main scanning direction, based on read-in test pattern image data (test image data) read from an original subjected to printing based on test pattern image data printed by discharging from a plurality of nozzles, and an image processor configured to correct image data included in a received print job so as to increase, in accordance with the amount of displacement, the amount of ink to be discharged from nozzles corresponding to positive correction target pixels whose calculated inter-pixel distance exceeds an inter-pixel threshold value (a predetermined distance).Type: GrantFiled: February 23, 2016Date of Patent: March 14, 2017Assignee: RISO KAGAKU CORPORATIONInventor: Takashi Ebisawa
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Publication number: 20160288555Abstract: There is provided a distance calculator configured to calculate an amount of displacement of an inkjet head in the main scanning direction, and an inter-pixel distance between neighboring pixels adjacent in the main scanning direction, based on read-in test pattern image data (test image data) read from an original subjected to printing based on test pattern image data printed by discharging from a plurality of nozzles, and an image processor configured to correct image data included in a received print job so as to increase, in accordance with the amount of displacement, the amount of ink to be discharged from nozzles corresponding to positive correction target pixels whose calculated inter-pixel distance exceeds an inter-pixel threshold value (a predetermined distance).Type: ApplicationFiled: February 23, 2016Publication date: October 6, 2016Applicant: RISO KAGAKU CORPORATIONInventor: Takashi EBISAWA
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Patent number: 9440438Abstract: The controller is configured to: drive a color ink ejection head and a functional ink ejection head to print test images on a sheet in a plurality of types of test patterns between which a positional relationship of a dot of a color ink and a dot of a functional ink to be formed on the sheet is varied; determine an overlapping degree of the dot of the color ink and the dot of the functional ink in the respective printed test images on a basis of a color attribute of the respective printed test images; and control the functional ink ejection head in printing on a basis of a control content corresponding to at least one test pattern selected of the plurality of types of the test patterns on a basis of the determined overlapping degrees.Type: GrantFiled: September 5, 2014Date of Patent: September 13, 2016Assignee: RISO KAGAKU CORPORATIONInventor: Takashi Ebisawa
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Publication number: 20150328881Abstract: In an ejection test of a clear ink nozzle, a controller drives a printing unit to eject a clear ink and a color ink to a sheet such that a dot formed by the clear ink ejected from the clear ink nozzle and a dot formed by the color ink ejected from a color ink nozzle at least partially overlap each other on the sheet, and then determines presence and absence of misfiring in the clear ink nozzle based on a degree of spreading of the dot of the color ink on the sheet after the driving.Type: ApplicationFiled: May 1, 2015Publication date: November 19, 2015Applicant: RISO KAGAKU CORPORATIONInventor: Takashi EBISAWA
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Patent number: 9182208Abstract: In the present invention, by inputting an upper head size to a computer in addition to a front & back length-size and a right & left width-size of a head portion of a helmet wearer and by data-processing them, there is employed a configuration in which a kind of the helmet size and a shape of a pad such as a pad, in the region consisting of the head-top portion and the vicinity thereof, or the like, which fit the head portion of the helmet wearer, are to be selected. According to the present invention, it is possible to provide a selection method in which it is possible to easily select a kind of a preferable size of the helmet, and a preferable shape of the pad in the region consisting of the head-top portion and the vicinity thereof.Type: GrantFiled: December 10, 2012Date of Patent: November 10, 2015Assignee: SHOEI CO., LTD.Inventor: Takashi Ebisawa
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Patent number: 9096440Abstract: A method of producing a superconductive material involves the step (1) of applying a solution of an organic compound of metals and oxides of the metals forming a superconductive material, onto a support body to be subsequently dried, the provisional baking step (2) of causing organic components of the organic compound of the metals to undergo thermal decomposition, and the main baking process step (3) of causing transformation of the oxides of the metals into the superconductive material, thereby producing an epitaxially-grown superconductive coating material, wherein the support body is irradiated with the laser light during a period between the steps (1) and (2) from a surface of the support body, on the opposite side of the surface coated with the solution of the organic compound of the metals for forming the superconductive material.Type: GrantFiled: July 31, 2007Date of Patent: August 4, 2015Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, THE JAPAN STEEL WORKS, LTD.Inventors: Mitsugu Sohma, Tetsuo Tsuchiya, Toshiya Kumagai, Kenichi Tsukada, Kunihiko Koyanagi, Takashi Ebisawa, Hidehiko Ohtu
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Patent number: 9004634Abstract: An inkjet printer includes nozzle rows aligned along a printing direction along which printing on a print medium is executed, and a controller configured to control ejection of the ink droplets from the nozzle rows. The nozzle rows include a pair of an upstream nozzle row and a downstream nozzle row. The upstream nozzle row is positioned just upstream from the downstream nozzle row along the printing direction. The controller controls ejection of the ink droplets from the upstream nozzle row and the downstream nozzle row so that propulsive forces applied to ink droplets ejected from the downstream nozzle row are made larger, based on image data associated with the upstream nozzle row, than propulsive forces applied to ink droplets ejected from the upstream nozzle row. The inkjet printer can restrict degradation of print quality by landing the ink droplets ejected from the downstream nozzle at their target positions.Type: GrantFiled: March 14, 2013Date of Patent: April 14, 2015Assignee: Riso Kagaku CorporationInventors: Toshihide Maesaka, Mamoru Saitou, Takashi Ebisawa, Ryo Terakado
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Publication number: 20150077452Abstract: The controller is configured to: drive a color ink ejection head and a functional ink ejection head to print test images on a sheet in a plurality of types of test patterns between which a positional relationship of a dot of a color ink and a dot of a functional ink to be formed on the sheet is varied; determine an overlapping degree of the dot of the color ink and the dot of the functional ink in the respective printed test images on a basis of a color attribute of the respective printed test images; and control the functional ink ejection head in printing on a basis of a control content corresponding to at least one test pattern selected of the plurality of types of the test patterns on a basis of the determined overlapping degrees.Type: ApplicationFiled: September 5, 2014Publication date: March 19, 2015Inventor: Takashi EBISAWA
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Patent number: 8926046Abstract: An image forming apparatus includes at least one inkjet head which is disposed above a feed path of a print medium and on which plural nozzles are aligned along a primary sweeping direction perpendicular to a feed direction of the print medium fed along the feed path. The image forming apparatus forms images by ejecting ink droplets from the nozzles. The image forming apparatus includes a controller that is operable to compensate ejection timings of ink droplets to be ejected from the nozzles onto the print medium based on ejection density of the ink droplets. The image forming apparatus can form good images that are not affected by ink dot displacements caused by feed airflow even when the ink dot displacements are affected by self-induced airflow.Type: GrantFiled: September 12, 2013Date of Patent: January 6, 2015Assignee: Riso Kagaku CorporationInventors: Mamoru Saitou, Takashi Ebisawa, Ryo Terakado, Toshihide Maesaka
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Patent number: 8885216Abstract: A specific gamut of colors extending a reproduction range of colors in a color space is set to make for any ink color belonging to the specific gamut a conversion from CMYK dot pattern data into numbers of ink drops to be discharged from an inkjet head, using as a lookup table an extended pattern table having a maximal drop number ‘7’. For ink colors belonging to a gamut of colors outside the specific gamut, a default pattern table having a maximal drop number ‘5’ is used as a lookup table for the conversion from CMYK dot pattern data into ink drop numbers.Type: GrantFiled: May 22, 2012Date of Patent: November 11, 2014Assignee: Riso Kagaku CorporationInventors: Mitsuaki Ishitoya, Takashi Ebisawa, Yoshiyuki Okada
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Patent number: 8857941Abstract: Displacement information indicating a displacement amount of landing position in a main scanning direction of ink droplets discharged respectively from the nozzle of the head module of the same array of the line head of each color is acquired for each head module of the same array (steps S5, S7). Based on the displacement information and concentration information for each array, a color degree of an image when the discharge amount of ink droplets discharged from a nozzle of a head module of each color is not adjusted is specified for each head module of each array (step S9). A correction voltage value of a drive signal for the discharge of the nozzle of the head module of each color, which is suitable to return the specified color degree to “0”, is calculated (step S11) and each corresponding nozzle is driven by the drive signal of the correction voltage value.Type: GrantFiled: September 21, 2011Date of Patent: October 14, 2014Assignee: Riso Kagaku CorporationInventor: Takashi Ebisawa