Patents by Inventor Haruo Harada

Haruo Harada 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: 7976911
    Abstract: The invention provides a liquid crystal layer in which an additive containing an aliphatic organic compound including at least one carbon-carbon double bond is added to a cholesteric liquid crystal in an amount of approximately 3 wt % or more and approximately 10 wt % or less.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: July 12, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takashi Morikawa, Haruo Harada, Hiroshi Arisawa, Yasunori Okano, Chisato Urano, Atsushi Hirano, Taijyu Gan
  • Publication number: 20110141383
    Abstract: A writing device for writing an image to a display medium, the writing device applies a voltage between a pair of electroconductive layers and irradiates light onto a photosensitive layer. The light irradiates onto a region of the photosensitive layer that overlaps a region of the display layer where liquid crystal of a first display layer undergoes transition to the light-reflecting state, and applies a voltage between the pair of electroconductive layers for a time period such that a voltage equal to or larger than a second threshold voltage is applied to a region of the display layer unit where the liquid crystal of the first display layer is to undergo transition to the light-reflecting state, and a voltage smaller than the second threshold voltage is applied to a region of the display layer unit overlapped by a region of the photosensitive layer to which no light is irradiated.
    Type: Application
    Filed: May 10, 2010
    Publication date: June 16, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Taijyu GAN, Masahiro Sato, Haruo Harada, Takashi Morikawa, Chikara Manabe, Chisato Urano, Atsushi Hirano, Hiroshi Arisawa
  • Patent number: 7920218
    Abstract: A recording device that includes an obtainment unit that obtains image information representing an image; and a voltage application unit that applies a voltage with a frequency according to the image information obtained by the obtainment unit, to a pair of electrodes equipped with a display medium, the display medium having a multi-layered liquid-crystal phase provided between the pair of electrodes, the multi-layered liquid-crystal phase having a first layer capable of assuming a specific alignment when the applied voltage is greater than or equal to a pre-set first voltage threshold, and a second layer capable of assuming a specific alignment when the applied voltage is greater than or equal to a second voltage threshold. An application of a voltage to the pair of electrodes effecting a first voltage component and a second voltage component applied to the first layer and the second layer, respectively.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: April 5, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Chisato Urano, Takashi Morikawa, Haruo Harada, Yasunori Okano, Taijyu Gan, Atsushi Hirano, Hiroshi Arisawa
  • Patent number: 7903203
    Abstract: The invention discloses a liquid crystal display element including: a pair of display substrates each having a support and an electrode provided on one surface of the support; and a display layer provided between the electrodes of the pair of display substrates, wherein the display layer contains gelatin and liquid crystal drops or microcapsules; and the liquid crystal drops or microcapsules are densely arrayed in a monolayer, and a method of manufacturing the liquid crystal display element, including: applying to a surface of one of the display substrates which surface has the electrode, a coating solution in which liquid crystal drops or microcapsules are dispersed in a solution containing gelatin and a solvent, thereby forming a coating layer; and evaporating the solvent in the coating layer at a temperature not less than the freezing point of the gelatin to provide a display layer between the electrodes of the display substrates.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: March 8, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Haruo Harada, Hiroshi Arisawa
  • Patent number: 7903181
    Abstract: A recording device includes a first voltage application unit that applies a first voltage to a display layer; a second voltage application unit that applies a second voltage; a first irradiation unit that irradiates to the display layer first light synchronized with the application of the second voltage; a second irradiation unit that irradiates to the display layer a second light after the application of the second voltage is terminated, the second light having a third intensity if the second light is irradiated at an area corresponding to the first tone in the second liquid crystal layer, the second light not being irradiated if the second light is irradiated at an area corresponding to the second tone in the second liquid crystal layer.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: March 8, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Atsushi Hirano, Taijyu Gan, Haruo Harada, Takashi Morikawa, Chisato Urano, Yasunori Okano, Hiroshi Arisawa, Takeo Kakinuma, Chikara Manabe
  • Publication number: 20110019111
    Abstract: A display medium comprises: a pair of electrodes to which a voltage is applied; a cholesteric liquid crystal layer provided between the pair of electrodes, wherein an alignment state of the cholesteric liquid crystal layer changes depending on a strength of an electric field generated upon application of a voltage to the pair of electrodes; and an intervening layer provided in an area between a part of the cholesteric liquid crystal layer and one of the pair of electrodes such that a strength of an electric field generated in the part of the cholesteric liquid crystal layer upon application of a voltage to the pair of electrodes is different from a strength of an electric field generated in another part of the cholesteric liquid crystal layer.
    Type: Application
    Filed: March 22, 2010
    Publication date: January 27, 2011
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Takashi Morikawa, Haruo Harada, Taijyu Gan, Yasunori Okano, Atsushi Hirano, Chisato Urano, Chikara Manabe, Takeo Kakinuma, Hiroshi Arisawa
  • Patent number: 7857203
    Abstract: A medium writing apparatus obtains information to be written onto a recording medium, converts the information into a suitable writable format, and then writes the converted information onto the recording medium. An ID obtaining section obtains a medium ID from the recording medium, or through an input by the user. The medium ID and information indicating the place of the written information are sent to a server, and then stored as index information correlating them with each other. When the information written onto the recording medium is to be used at a later timing, the medium ID is identified, and the index information is obtained from the server. Therefore, the original information can be obtained so as to be easily reprocessed or reused.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: December 28, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Ikutaroh Nagatsuka, Yasunori Saito, Minoru Koshimizu, Daisuke Tsuda, Tsunemasa Mita, Tsutomu Ishii, Kiyoshi Shigehiro, Takeshi Matsunaga, Takeo Kakinuma, Yoshinori Machida, Yasufumi Suwabe, Hiroshi Arisawa, Yasunari Nishikata, Haruo Harada
  • Publication number: 20100315385
    Abstract: A writing device includes: a voltage application unit that applies a voltage to a display medium including a first display layer, second display layer and a photoconductive layer; a first obtaining unit that obtains image data showing an original image; a controller that controls the voltage application unit and the irradiating unit to cause the display medium to show an overlapped image including the obtained original image and an overwritten image overwritten on the original image, the overwritten image including a point corresponding to the location shown by the location information stored in the storage unit.
    Type: Application
    Filed: November 13, 2009
    Publication date: December 16, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Taijyu GAN, Hiroshi ARISAWA, Haruo HARADA, Takashi MORIKAWA, Chisato URANO, Yasunori OKANO, Atsushi HIRANO
  • Publication number: 20100296011
    Abstract: A recording device includes a first voltage application unit that applies a first voltage to a display layer; a second voltage application unit that applies a second voltage; a first irradiation unit that irradiates to the display layer first light synchronized with the application of the second voltage; a second irradiation unit that irradiates to the display layer a second light after the application of the second voltage is terminated, the second light having a third intensity if the second light is irradiated at an area corresponding to the first tone in the second liquid crystal layer, the second light not being irradiated if the second light is irradiated at an area corresponding to the second tone in the second liquid crystal layer.
    Type: Application
    Filed: March 15, 2010
    Publication date: November 25, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Atsushi HIRANO, Taijyu Gan, Haruo Harada, Takashi Morikawa, Chisato Urano, Yasunori Okano, Hiroshi Arisawa, Takeo Kakinuma, Chikara Manabe
  • Patent number: 7817213
    Abstract: Sequentially performed are (1) an entire liquid crystal layer is initialized into a focal conic state, (2) an image is written onto the liquid crystal device by scanning with selecting exposure or non-exposure while applying a voltage that does not exceed a threshold value for a state change from the focal conic state to a homeotropic state during the non-exposure but exceeds the threshold value during the exposure and that causes the focal conic state and the homeotropic state to be bi-stable after the exposure, and (3) the application of the voltage is stopped to change a state of a portion, of which the state has changed to the homeotropic state, to the planer state. In (2), an electric field energy applied to an exposure portion of the liquid crystal layer is controlled to gradually increase from a start to an end of the series of scanning actions.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: October 19, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Haruo Harada, Yasunori Okano, Chisato Urano, Hiroshi Arisawa, Makoto Gomyo, Taijyu Gan, Yasuhiro Yamaguchi, Tomozumi Uesaka
  • Publication number: 20100259696
    Abstract: A recording device includes: a voltage application unit that applies a voltage exceeding a first threshold value to a display medium; a photosensitive layer in which an impedance changes depending on an irradiated light; and a light irradiation unit that irradiates light of a first intensity that changes the impedance of the display medium at the approximately same time as when the voltage is applied by the voltage application unit and, and when the voltage is no longer applied by the voltage application unit, irradiates light that has a second intensity lower than the first intensity and that damps the residual voltage to the second threshold value or below within a length of time equal to or less than the third threshold value.
    Type: Application
    Filed: November 2, 2009
    Publication date: October 14, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Atsushi HIRANO, Taijyu GAN, Haruo HARADA, Takashi MORIKAWA, Chisato URANO, Yasunori OKANO, Hiroshi ARISAWA
  • Publication number: 20100245291
    Abstract: A writing apparatus includes: a voltage application unit that applies a voltage to a display medium whose display changes according to an irradiation of light and an applied voltage; an optical output unit that irradiates light toward the display medium; and a controller that (i) receives a position signal that has been output from an apparatus upon contact with an input device, the position signal indicating a position of the contact with the input device, (ii) specifies, based on the received position signal, a position on the display medium at which a display is to be changed, and (iii) controls the optical output unit so that light is irradiated toward the specified position on the display medium for a predetermined time period.
    Type: Application
    Filed: August 3, 2009
    Publication date: September 30, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Haruo HARADA, Taijyu GAN, Hiroshi ARISAWA, Yasunori OKANO, Chisato URANO, Takashi MORIKAWA, Atsushi HIRANO
  • Publication number: 20100243341
    Abstract: A writing device includes: a display medium including: a first display layer; a second display layer stacked on the first display layer; a first conductive layer and a second conductive layer sandwiching the first display layer and the second display layer; and a photosensitive layer located between the first conductive layer and the second conductive layer; a voltage-applying unit that applies a bias voltage to the first conductive layer and the second conductive layer, a frequency of the bias voltage differing between a case in which a state of the first display layer and a state of the second display layer are changed simultaneously, and a case in which a state of the first display layer and a state of the second display layer are changed separately; and a light outputting unit that irradiates light to the display medium.
    Type: Application
    Filed: June 30, 2009
    Publication date: September 30, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Haruo HARADA, Chisato URANO, Hiroshi ARISAWA, Yasunori OKANO, Taijyu GAN, Takashi MORIKAWA, Atsushi HIRANO
  • Publication number: 20100231829
    Abstract: An optical recording display medium comprises: a display layer whose display changes according to an applied voltage; a photoconductive layer that is provided opposing the display layer and changes a voltage applied to the display layer according to irradiated light; and a selective transmission layer that is provided on a light path to where light irradiated toward the photoconductive layer arrives at the photoconductive layer, and whose transmissivity with respect to the irradiated light increases as an intensity of the irradiated light increases.
    Type: Application
    Filed: August 13, 2009
    Publication date: September 16, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takashi MORIKAWA, Hiroshi ARISAWA, Haruo HARADA, Chisato URANO, Yasunori OKANO, Atsushi HIRANO, Taijyu GAN
  • Publication number: 20100225838
    Abstract: A recording device that includes an obtainment unit that obtains image information representing an image; and a voltage application unit that applies a voltage with a frequency according to the image information obtained by the obtainment unit, to a pair of electrodes equipped with a display medium, the display medium having a multi-layered liquid-crystal phase provided between the pair of electrodes, the multi-layered liquid-crystal phase having a first layer capable of assuming a specific alignment when the applied voltage is greater than or equal to a pre-set first voltage threshold, and a second layer capable of assuming a specific alignment when the applied voltage is greater than or equal to a second voltage threshold. An application of a voltage to the pair of electrodes effecting a first voltage component and a second voltage component applied to the first layer and the second layer, respectively.
    Type: Application
    Filed: July 27, 2009
    Publication date: September 9, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Chisato URANO, Takashi MORIKAWA, Haruo HARADA, Yasunori OKANO, Taijyu GAN, Atsushi HIRANO, Hiroshi ARISAWA
  • Publication number: 20100209629
    Abstract: The invention provides a liquid crystal layer in which an additive containing an aliphatic organic compound including at least one carbon-carbon double bond is added to a cholesteric liquid crystal in an amount of approximately 3 wt % or more and approximately 10 wt % or less.
    Type: Application
    Filed: July 24, 2009
    Publication date: August 19, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takashi MORIKAWA, Haruo HARADA, Hiroshi ARISAWA, Yasunori OKANO, Chisato URANO, Atsushi HIRANO, Taijyu GAN
  • Patent number: 7619600
    Abstract: A driving method of a liquid crystal device for recording an image, the liquid crystal device including a liquid crystal layer having a cholesteric liquid crystal, a photoconductor layer accumulated on the liquid crystal layer, and electrodes, includes initializing an entire liquid crystal layer to a focal conic texture by applying a voltage exceeding a threshold value of transition from a planar texture to a focal conic texture, exposing the liquid crystal device imagewise while applying a voltage not exceeding a threshold value from the focal conic texture to a homeotropic texture upon non-exposure but exceeding the threshold value upon exposure and that provides bistability of the focal conic texture and the homeotropic texture with hysteresis upon non-exposure, and fixing a displayed image by releasing an application of voltage to change a part of the liquid crystal layer changed to the homeotropic texture to the planar texture.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: November 17, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Haruo Harada, Hiroshi Arisawa, Yasunori Okano, Makoto Gomyou, Taijyu Gan
  • Publication number: 20090255985
    Abstract: A medium writing apparatus obtains information to be written onto a recording medium, converts the information into a suitable writable format, and then writes the converted information onto the recording medium. An ID obtaining section obtains a medium ID from the recording medium, or through an input by the user. The medium ID and information indicating the place of the written information are sent to a server, and then stored as index information correlating them with each other. When the information written onto the recording medium is to be used at a later timing, the medium ID is identified, and the index information is obtained from the server. Therefore, the original information can be obtained so as to be easily reprocessed or reused.
    Type: Application
    Filed: June 12, 2009
    Publication date: October 15, 2009
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Ikutaroh Nagatsuka, Yasunori Saito, Minoru Koshimizu, Daisuke Tsuda, Tsunemasa Mita, Tsutomu Ishii, Kiyoshi Shigehiro, Takeshi Matsunaga, Takeo Kakinuma, Yoshinori Machida, Yasufumi Suwabe, Hiroshi Arisawa, Yasunari Nishikata, Haruo Harada
  • Publication number: 20090231501
    Abstract: Sequentially performed are (1) an entire liquid crystal layer is initialized into a focal conic state, (2) an image is written onto the liquid crystal device by scanning with selecting exposure or non-exposure while applying a voltage that does not exceed a threshold value for a state change from the focal conic state to a homeotropic state during the non-exposure but exceeds the threshold value during the exposure and that causes the focal conic state and the homeotropic state to be bi-stable after the exposure, and (3) the application of the voltage is stopped to change a state of a portion, of which the state has changed to the homeotropic state, to the planer state. In (2), an electric field energy applied to an exposure portion of the liquid crystal layer is controlled to gradually increase from a start to an end of the series of scanning actions.
    Type: Application
    Filed: October 8, 2008
    Publication date: September 17, 2009
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Haruo HARADA, Yasunori OKANO, Chisato URANO, Hiroshi ARISAWA, Makoto GOMYO, Taiju GAN, Yasuhiro YAMAGUCHI, Tomozumi UESAKA
  • Patent number: 7578429
    Abstract: A medium writing apparatus obtains information to be written onto a recording medium, converts the information into a suitable writable format, and then writes the converted information onto the recording medium. An ID obtaining section obtains a medium ID from the recording medium, or through an input by the user. The medium ID and information indicating the place of the written information are sent to a server, and then stored as index information correlating them with each other. When the information written onto the recording medium is to be used at a later timing, the medium ID is identified, and the index information is obtained from the server. Therefore, the original information can be obtained so as to be easily reprocessed or reused.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: August 25, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Ikutaroh Nagatsuka, Yasunori Saito, Minoru Koshimizu, Daisuke Tsuda, Tsunemasa Mita, Tsutomu Ishii, Kiyoshi Shigehiro, Takeshi Matsunaga, Takeo Kakinuma, Yoshinori Machida, Yasufumi Suwabe, Hiroshi Arisawa, Yasunari Nishikata, Haruo Harada