Patents by Inventor Naoko Baba

Naoko Baba 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).

  • Patent number: 11561495
    Abstract: A pressing rotating member comprising a base layer, an elastic layer and a surface layer, in this order, the surface layer having pores, wherein when placing an observation region of 8 ?m long×11 ?m wide at a cross section of the surface layer in a thickness direction of the surface layer—a direction perpendicular to a circumferential direction of the pressing rotating member, a degree of orientation f of the pores observed in the observation region is 0.20 or higher, and an orientation angle ? of the pores observed in the observation region is 0° to 10°.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: January 24, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoko Kasai, Yohei Miyauchi, Yasuharu Notoya, Takuji Oishi, Yasuhiro Miyahara, Masaaki Takahashi, Yusuke Baba, Hiroki Muramatsu, Ryo Ishifuji
  • Patent number: 11553111
    Abstract: An information processing apparatus, an information processing method, and a storage medium that execute density characteristics acquisition processing at an appropriate timing are provided.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: January 10, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoko Baba, Yuji Konno, Yoshitomo Marumoto, Shin Genta, Takayuki Ushiyama, Yumi Shimokodachi, Serena Yoshikawa, Taichi Yokokawa
  • Publication number: 20220390885
    Abstract: Provided is a pressurizing member including a substrate, an elastic layer on the substrate, and a surface layer on the elastic layer, the surface layer containing a fluorine resin, wherein the surface layer has a surface resistivity of 1×1011[?/?] or less at a temperature of 25° C. when applying a DC voltage of 500 V, and a thermal conductivity ? in a thickness direction of the surface layer is 0.093 [W/(m·K)] or less.
    Type: Application
    Filed: May 27, 2022
    Publication date: December 8, 2022
    Inventors: Ryo Ishifuji, Hiroki Muramatsu, Yasuharu Notoya, Yohei Miyauchi, Naoko Kasai, Yusuke Baba, Masaaki Takahashi
  • Publication number: 20220324223
    Abstract: An inkjet printing apparatus is configured to print the image in N (N is an integer of four or more) print scanning operations of a print head for a unit region of the print medium by using N mask patterns used in the N print scanning operations. The inkjet printing apparatus includes: an obtaining unit configured to obtain defective nozzle information specifying a defective nozzle; and a correction unit configured to divide the N mask patterns into mask groups each corresponding to two or more print scanning operations and correct the mask patterns based on the defective nozzle information in each of the divided mask groups.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 13, 2022
    Inventors: Hajime Nagai, Yuji Konno, Satoshi Wada, Naoko Baba, Shingo Nishioka, Kei Yoshizawa, Junichi Saito, Serena Yoshikawa
  • Patent number: 11429050
    Abstract: An object of one embodiment of the present disclosure is to accurately suppress a color shift. One embodiment of the present disclosure is a printing apparatus including: a print head having a nozzle column including a plurality of nozzles through which ink is ejected; an acquiring unit configured to acquire a measurement value by reading a tone patch pattern printed by the print head; and a setting unit configured to set a printing characteristic based on the measurement value and a target value, and the printing apparatus further includes a determination unit configured to determine whether or not reading has been performed normally based on a variation amount calculated by using the measurement value.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: August 30, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Naoko Baba
  • Publication number: 20220253655
    Abstract: An object of the present disclosure is to implement, at a low cost, highly accurate color calibration in a printing apparatus that performs printing using fluorescent ink. One embodiment of the present invention is an image processing apparatus that includes: a processing unit configured to perform processing relating to color calibration in a printing apparatus that prints an image on a printing medium using fluorescent printing material; and an execution unit configured to perform calibration processing of the printing apparatus based on a measured value that is obtained by measuring a patch chart for obtaining information on an amount of application of the fluorescent printing material in the printing apparatus, wherein a patch included in the patch chart is printed with the fluorescent printing material and subtractive color mixture printing material and at least one dot of the subtractive color mixture printing material covers a dot of the fluorescent printing material.
    Type: Application
    Filed: February 4, 2022
    Publication date: August 11, 2022
    Inventors: Seiji Abe, Naoko Baba, Kouta Murasawa, Hiromitsu Yamaguchi, Keiji Kuriyama, Yuki Igarashi, Hiroshi Mori
  • Patent number: 11403500
    Abstract: First quantization data for printing by the first nozzle group and second quantization data for printing by the second nozzle group are generated based on multi-valued data. By use of mask patterns, first print data and second print data are generated based on the first quantization data and the second quantization data. The first mask pattern for generating first print data and the second mask pattern for generating second print data are formed so as to include a pixel in which printing of a dot is allowed in both and a pixel in which printing of a dot is not allowed in both. The pixel value of each pixel indicated by the multi-valued data has a correlation with the sum of the number of dots indicated by the first print data and the number of dots indicated by the second print data in the area corresponding to each pixel.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: August 2, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akihiro Tomida, Naoko Baba, Yoshinori Nakajima, Naomi Yamamoto, Satoshi Wada, Yumi Shimokodachi, Junichi Saito
  • Publication number: 20220206421
    Abstract: A fixing rotating member comprising a base layer, an elastic layer and a surface layer, in this order, the surface layer containing PFA and PFPE, and having pores with openings at a first surface; at least part of the pores containing the PFPE, wherein when after removing the PFPE in the pores, placing a first observation region on the first surface, defining a ratio of a sum of areas of the openings in the first observation region relative to an area of the first observation region as P1; and placing a second observation region in a cross section of the surface layer, and defining a ratio of a sum of areas of the pores in the second observation region relative to an area of the second observation region as P2, P2/P1 is 1.3 or higher.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 30, 2022
    Inventors: Yohei Miyauchi, Yasuharu Notoya, Naoko Kasai, Yusuke Baba, Masaaki Takahashi, Hiroki Muramatsu, Ryo Ishifuji
  • Publication number: 20220206420
    Abstract: A pressing rotating member comprising a base layer, an elastic layer and a surface layer, in this order, the surface layer having pores, wherein when placing an observation region of 8 ?m long×11 ?m wide at a cross section of the surface layer in a thickness direction of the surface layer—a direction perpendicular to a circumferential direction of the pressing rotating member, a degree of orientation f of the pores observed in the observation region is 0.20 or higher, and an orientation angle ? of the pores observed in the observation region is 0° to 10°.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 30, 2022
    Inventors: Naoko Kasai, Yohei Miyauchi, Yasuharu Notoya, Takuji Oishi, Yasuhiro Miyahara, Masaaki Takahashi, Yusuke Baba, Hiroki Muramatsu, Ryo Ishifuji
  • Publication number: 20220206419
    Abstract: Provided is a fixing rotating member capable of maintaining high toner releasability over longer periods of time than in conventional instances and that is capable of maintaining abrasion resistance against paper; the fixing rotating member comprises a base layer, an elastic layer, and a surface layer, in this order; the surface layer containing a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer and a perfluoropolyether; the tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer having pores formed therein; the surface layer has pores with openings at a first surface thereof, and constituting an outer surface of the fixing rotating member; at least part of the pores containing the perfluoropolyether; a content of the perfluoropolyether in the surface layer is 20 mass % to 60 mass %; and a degree of orientation A of molecules of the tetrafluoroethylene-perfluoroalkyl vinyl ether in a direction perpendicular to a circumferential direction of the surface layer is 35 to 75%.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 30, 2022
    Inventors: Hiroki Muramatsu, Ryo Ishifuji, Yohei Miyauchi, Yasuharu Notoya, Yusuke Baba, Masaaki Takahashi, Naoko Kasai
  • Publication number: 20220097422
    Abstract: Provided are an image printing apparatus and a method of controlling the same which are capable of appropriately correcting the conveyance amount in each of a plurality of conveyance paths. In a case of conveying a print medium along a first conveyance path, a controller controls the driving of a conveyance motor based on first information. In a case of conveying the print medium along a second conveyance path, the controller controls the driving of the conveyance motor based on second information, which is different from the first information.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 31, 2022
    Inventors: Serena Yoshikawa, Naoko Baba, Yuji Konno, Yoshitomo Marumoto, Shin Genta, Takayuki Ushiyama, Yumi Shimokodachi, Taichi Yokokawa
  • Publication number: 20220080754
    Abstract: To provide a technology capable of appropriately suppressing deterioration in cutting accuracy of a slitter although the rigidity of a print medium changes, a printing apparatus is equipped with: a first conveyance unit configured to convey a print medium; a printing unit configured to print an image by applying ink to the print medium conveyed by the first conveyance unit; a cutting unit disposed on a downstream side in a conveyance direction in which the print medium is conveyed by the first conveyance unit and configured to cut the print medium, which is conveyed by the first conveyance unit, along the conveyance direction; and a second conveyance unit disposed on the cutting unit, and the printing apparatus includes a correction unit configured to correct a parameter related to conveyance of at least one of the first conveyance unit and the second conveyance unit, based on information about the print medium.
    Type: Application
    Filed: August 23, 2021
    Publication date: March 17, 2022
    Inventors: Hiroshi Kawafuji, Hiroshi Taira, Kazuhiko Sato, Taku Yokozawa, Noboru Kunimine, Akiko Aichi, Satoshi Azuma, Sae Mogi, Kei Yoshizawa, Shingo Nishioka, Junichi Saito, Hajime Nagai, Naoko Baba, Yuji Konno, Serena Yoshikawa, Satoshi Wada
  • Publication number: 20220072878
    Abstract: A printing apparatus includes an image processing unit and generates a product by performing printing on a print medium conveyed in a conveyance direction intersecting a width direction, based on data for printing, and then cutting a width-direction end portion of a printed image, wherein the image processing unit calculates a first ink application amount of a first area formed at one end portion in the width direction on a leading edge side of the image which is located on a downstream side in the conveyance direction during printing and a second ink application amount of a second area formed at the other end in the width direction on the leading edge and enlarges the image data at a predetermined ratio to obtain the data for printing in a case where at least one of the first ink application amount and the second ink application amount exceeds a threshold value.
    Type: Application
    Filed: September 20, 2021
    Publication date: March 10, 2022
    Inventors: Yuji Konno, Satoshi Wada, Naoko Baba, Hajime Nagai, Shingo Nishioka, Kei Yoshizawa, Junichi Saito, Serena Yoshikawa
  • Publication number: 20210321018
    Abstract: An information processing apparatus, an information processing method, and a storage medium that execute density characteristics acquisition processing at an appropriate timing are provided.
    Type: Application
    Filed: April 9, 2021
    Publication date: October 14, 2021
    Inventors: Naoko Baba, Yuji Konno, Yoshitomo Marumoto, Shin Genta, Takayuki Ushiyama, Yumi Shimokodachi, Serena Yoshikawa, Taichi Yokokawa
  • Publication number: 20210312249
    Abstract: First quantization data for printing by the first nozzle group and second quantization data for printing by the second nozzle group are generated based on multi-valued data. By use of mask patterns, first print data and second print data are generated based on the first quantization data and the second quantization data. The first mask pattern for generating first print data and the second mask pattern for generating second print data are formed so as to include a pixel in which printing of a dot is allowed in both and a pixel in which printing of a dot is not allowed in both. The pixel value of each pixel indicated by the multi-valued data has a correlation with the sum of the number of dots indicated by the first print data and the number of dots indicated by the second print data in the area corresponding to each pixel.
    Type: Application
    Filed: March 25, 2021
    Publication date: October 7, 2021
    Inventors: Akihiro Tomida, Naoko Baba, Yoshinori Nakajima, Naomi Yamamoto, Satoshi Wada, Yumi Shimokodachi, Junichi Saito
  • Patent number: 11124005
    Abstract: With a conventional method of estimating an application amount of a clear recording material from a color of a patch, it is difficult to realize high accuracy, similar colors are sometimes exhibited in measurement results even if there is a significant difference in the application amount of a clear ink. In contrast, with a disclosed configuration of estimating an application amount of a clear recording material from a reflection intensity of a patch, measurement results that exhibit a one-dimensional increase of a relationship between the application amount of the clear recording material and the reflection intensity are acquired, so that the accuracy of application amount estimation increases.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: September 21, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Naoko Baba
  • Publication number: 20210026283
    Abstract: An object of one embodiment of the present disclosure is to accurately suppress a color shift. One embodiment of the present disclosure is a printing apparatus including: a print head having a nozzle column including a plurality of nozzles through which ink is ejected; an acquiring unit configured to acquire a measurement value by reading a tone patch pattern printed by the print head; and a setting unit configured to set a printing characteristic based on the measurement value and a target value, and the printing apparatus further includes a determination unit configured to determine whether or not reading has been performed normally based on a variation amount calculated by using the measurement value.
    Type: Application
    Filed: July 15, 2020
    Publication date: January 28, 2021
    Inventor: Naoko Baba
  • Publication number: 20200247163
    Abstract: With a conventional method of estimating an application amount of a clear recording material from a color of a patch, it is difficult to realize high accuracy, similar colors are sometimes exhibited in measurement results even if there is a significant difference in the application amount of a clear ink. In contrast, with a disclosed configuration of estimating an application amount of a clear recording material from a reflection intensity of a patch, measurement results that exhibit a one-dimensional increase of a relationship between the application amount of the clear recording material and the reflection intensity are acquired, so that the accuracy of application amount estimation increases.
    Type: Application
    Filed: January 28, 2020
    Publication date: August 6, 2020
    Inventor: Naoko Baba
  • Patent number: 10457067
    Abstract: Each area in a test pattern for performing color shift correction is recorded by a discharge port at an edge portion in many times of scanning and by a discharge port other than the discharge port at the edge portion in fewer times of scanning.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 29, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoko Baba, Kazuki Narumi
  • Publication number: 20180117928
    Abstract: Each area in a test pattern for performing color shift correction is recorded by a discharge port at an edge portion in many times of scanning and by a discharge port other than the discharge port at the edge portion in fewer times of scanning.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 3, 2018
    Inventors: Naoko Baba, Kazuki Narumi