Patents by Inventor Manabu Izumikawa

Manabu Izumikawa 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: 7787157
    Abstract: An image reading apparatus is disclosed. The image reading apparatus provides plural sensors and a correction unit that corrects displacement of image data caused by intervals among the plural sensors and includes a first draft reading mode whose scanning direction by the sensors is the same as at the time of shading correction and a second draft reading mode whose scanning direction by the sensors is different from at the time of shading correction. The correction unit includes plural paths in which a different number of delay units are disposed in each path and changing over units that change over a connection between the sensors and the paths. The changing over units are changed over between at the time of reading image data and the shading correction in the first draft reading mode and at the time of reading image data in the second draft reading mode.
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: August 31, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Kohji Matsuda, Tatsuo Hirono, Manabu Izumikawa, Yohji Mohri, Nobuyuki Kobayashi, Masami Miyajima, Jun Sasaki
  • Publication number: 20100165016
    Abstract: A foamed liquid coating apparatus prevents curling or warping of a sheet caused by coating irregularities when coated with a preprocessing solution using a coating roller or a liquid discharge head. The foamed liquid coating apparatus includes a container holding a liquid that can be foamed. A first foamed liquid producing/transporting unit produces a foamed liquid having a foam size greater than a required foam size from the liquid supplied from the container. A second foamed liquid producing/transporting unit produces a foamed liquid having the required foam size from the foamed liquid produced by the first foamed liquid producing/transporting unit. The foamed liquid produced by the second foamed liquid producing/transporting unit is applied onto a first coating roller. The foamed liquid is further supplied from the first coating roller to a second coating roller that coats a sheet with the foamed liquid.
    Type: Application
    Filed: July 4, 2008
    Publication date: July 1, 2010
    Inventors: Minori Ichimura, Kazuyoshi Matsumoto, Manabu Izumikawa, Takeshi Takemoto, Yasuhisa Kato, Yasuo Katano
  • Patent number: 7738125
    Abstract: In an image processing apparatus, a document is read to obtain image data of the document, and a color material of an image forming unit is selected. If it is detected that reproduction of a document is prohibited, a document distinction disabling process, which inhibits reproduction of the document, is applied to the image data of the document using selected color material, and the image data subjected to the document distinction disabling process is sent to the image forming unit to form an output of the image data.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: June 15, 2010
    Assignee: Ricoh Company, Ltd.
    Inventor: Manabu Izumikawa
  • Publication number: 20090263584
    Abstract: An image quality improvement treatment liquid is disclosed that improves quality of an image formed on a medium by reacting with color materials in ink and agglutinating the color materials upon contact with the ink including water and color materials to be ionized in water or color materials to be ionized in water due to absorption with components having ionic characteristics in water. The image quality improvement treatment liquid includes at least one of cationic components and components capable of acidizing water, at least one of nonionic surfactant and amphoteric surfactant as a foaming agent, and water-insoluble fatty acid.
    Type: Application
    Filed: April 7, 2009
    Publication date: October 22, 2009
    Inventors: Yasuo Katano, Tomoaki Sugawara, Minori Ichimura, Manabu Izumikawa, Kazuyoshi Matsumoto
  • Publication number: 20090151625
    Abstract: A disclosed image forming apparatus includes an image forming unit configured to form an image on a recording medium; and a foam application unit configured to apply foam generated by foaming a liquid and/or a gel onto the recording medium. The foam application unit includes an application part configured to apply the foam onto the recording medium, a supply opening configured to supply the foam to the application part, and a spreading part configured to spread the foam on the application part. The spreading part is disposed at an angle with respect to the movement direction of the application part; and the supply opening is disposed near the most upstream portion of the spreading part with respect to the movement direction of the application part.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 18, 2009
    Applicant: RICOH COMPANY, LTD
    Inventors: Kazuyoshi MATSUMOTO, Minori Ichimura, Shinji Imoto, Manabu Izumikawa, Yasuhisa Kato, Yasuo Katano
  • Publication number: 20080316279
    Abstract: A liquid ejection head includes a nozzle plate having a nozzle that ejects liquid drops, an actuator that deforms a portion of the nozzle plate surrounding the nozzle with heat, and a flow path member opposing the nozzle plate, which forms a flow path for guiding liquid to the nozzle. A fluidity resistance path is provided in the flow path between a nozzle plate portion surrounding the nozzle and a portion of the flow path member opposing the nozzle plate portion. A fluidity resistance of the fluidity resistance path is changed by deforming the nozzle plate portion.
    Type: Application
    Filed: June 17, 2008
    Publication date: December 25, 2008
    Applicant: RICOH COMPANY, LTD.
    Inventors: Takeshi Takemoto, Yasuhisa Kato, Kazuyoshi Matsumoto, Minori Ichimura, Manabu Izumikawa
  • Publication number: 20060209332
    Abstract: In an image processing apparatus, a document is read to obtain image data of the document, and a color material of an image forming unit is selected. If it is detected that reproduction of a document is prohibited, a document distinction disabling process, which inhibits reproduction of the document, is applied to the image data of the document using selected color material, and the image data subjected to the document distinction disabling process is sent to the image forming unit to form an output of the image data.
    Type: Application
    Filed: February 8, 2006
    Publication date: September 21, 2006
    Inventor: Manabu Izumikawa
  • Publication number: 20060126125
    Abstract: An image reading apparatus is disclosed. The image reading apparatus provides plural sensors and a correction unit that corrects displacement of image data caused by intervals among the plural sensors and includes a first draft reading mode whose scanning direction by the sensors is the same as at the time of shading correction and a second draft reading mode whose scanning direction by the sensors is different from at the time of shading correction. The correction unit includes plural paths in which a different number of delay units are disposed in each path and changing over units that change over a connection between the sensors and the paths. The changing over units are changed over between at the time of reading image data and the shading correction in the first draft reading mode and at the time of reading image data in the second draft reading mode.
    Type: Application
    Filed: November 17, 2005
    Publication date: June 15, 2006
    Inventors: Kohji Matsuda, Tatsuo Hirono, Manabu Izumikawa, Yohji Mohri, Nobuyuki Kobayashi, Masami Miyajima, Jun Sasaki
  • Patent number: 7062185
    Abstract: When a reading unit reads information of a pattern image for correcting image quality printed on at least either side of a recording medium, a control unit compares the information of the pattern image for correcting image-quality with correction pattern information that is a basis of the pattern image for correcting image quality transferred to the at least either side of the recording medium, and controls an image forming unit based on a result of the comparison to correct image quality on the at least either side of the recording medium.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: June 13, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Manabu Izumikawa, Yukio Tagawa, Takashi Enami, Tatsuo Hirono, Kohichi Kanaya, Masami Miyajima, Shota Miyajima, Takeshi Kowada, Takashi Imori, Takeo Ohashi, Jun Sasaki
  • Publication number: 20050141907
    Abstract: When a reading unit reads information of a pattern image for correcting image quality printed on at least either side of a recording medium, a control unit compares the information of the pattern image for correcting image-quality with correction pattern information that is a basis of the pattern image for correcting image quality transferred to the at least either side of the recording medium, and controls an image forming unit based on a result of the comparison to correct image quality on the at least either side of the recording medium.
    Type: Application
    Filed: September 17, 2004
    Publication date: June 30, 2005
    Inventors: Manabu Izumikawa, Yukio Tagawa, Takashi Enami, Tatsuo Hirono, Kohichi Kanaya, Masami Miyajima, Shota Miyajima, Takeshi Kowada, Takashi Imori, Takeo Ohashi, Jun Sasaki