Patents by Inventor Jun Kawahara

Jun Kawahara 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).

  • Publication number: 20100225575
    Abstract: A particle dispersion for display including: first particles for display including a colorant and a first polymer having a first charging group, the first particles for display being movable in response to an electric field; a first polymeric dispersant attached to the first particles for display; second particles for display including a colorant and a second polymer having a second charging group, the second particles for display being movable in response to an electric field; a second polymeric dispersant attached to the second particles for display; and a dispersing medium in which the first particles for display and the second particles for display are dispersed, the first polymeric dispersant and the second polymeric dispersant having different weight average molecular weights so that the first particles for display and the second particles for display start moving upon application of different voltages.
    Type: Application
    Filed: September 14, 2009
    Publication date: September 9, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Rie ISHII, Jun KAWAHARA, Nami TOKUNAGA, Daisuke NAKAYAMA
  • Publication number: 20100123199
    Abstract: Provided is a semiconductor device including: a semiconductor substrate; a multi-layered wiring structure which is formed over the semiconductor substrate and in which a plurality of wiring layers, each of which is formed by a wiring and an insulating layer, are laminated; and a capacitive element having a lower electrode, a capacitor insulating layer, and an upper electrode which is embedded in the multi-layered wiring structure, wherein at least two or more of the wiring layers are provided between a lower capacitor wiring connected to the lower electrode and an upper capacitor wiring connected to the upper electrode.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 20, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventors: Jun Kawahara, Yoshihiro Hayashi, Ippei Kume
  • Patent number: 7715086
    Abstract: The invention provides a display method, and a display medium and a display device using the method thereof. The display method displays an image through a process for depositing fine metal particles, in which fine metal particles are deposited on a solid surface from an electrolyte by giving one stimulus to the electrolyte, wherein the particle size distribution of the fine metal particles that are deposited on the specific area of the solid surface, has one or more maximum peaks, and at least one of the maximum peaks satisfies the following formula (1): Pp(±30)/Pp(T)?0.5??(1) where, Pp(T) means the height of the highest peak among the maximum peaks, and Pp(±30) means the height of the distribution curve at the particle size that is ±30% from the particle size of the fine metal particles at the height of the highest peak.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: May 11, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yasuo Yamamoto, Jun Kawahara, Takayuki Takeuchi, Hiroaki Moriyama, Rie Ishii
  • Patent number: 7688496
    Abstract: The invention provides a display medium having a dimmer layer which comprises at least two kinds of charged mobile fine particles. Each of the at least two kinds of the charged mobile fine particles respectively has different coloration and a different mobility, and the charged mobile fine particles of at least one kind of the at least two kinds show coloration when in a dispersed state. The invention further provides a display device having an electric field forming unit and the dimmer layer. The invention further provides a display method which uses the display medium and includes putting the charged mobile fine particles of at least one of the kinds being dispersed while having other charged mobile fine particles not being dispersed.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: March 30, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hiroaki Moriyama, Yasuo Yamamoto, Jun Kawahara, Masaaki Abe
  • Publication number: 20090309186
    Abstract: A semiconductor device is produced by fabricating a capacitor element including a lower electrode, a capacitor insulating film, and an upper electrode, and a thin-film resistor element, in the same step. As the lower electrode of the capacitor element is lined with a lower layer wiring layer (Cu wiring), the lower electrode has extremely low resistance substantially. As such, even if the film thickness of the lower electrode becomes thinner, parasitic resistance does not increased. The resistor element is formed to have the same film thickness as that of the lower electrode of the capacitor element. Since the film thickness of the lower electrode is thin, it works as a resistor having high resistance. In the top layer of the passive element, a passive element cap insulating film is provided, which works as an etching stop layer when etching a contact of the upper electrode of the capacitor element.
    Type: Application
    Filed: December 25, 2007
    Publication date: December 17, 2009
    Inventors: Naoya Inoue, Ippei Kume, Jun Kawahara, Yoshihiro Hayashi
  • Patent number: 7619610
    Abstract: A display device of the present invention comprises display unit cells having a display region that shows coloration, a shield region that shields the coloration, and a horizontal projection surface area adjustment unit that relatively changes the horizontal projection surface area in the display region by increasing or decreasing the shielding region; and a display method using the display device.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: November 17, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Jun Kawahara, Rie Ishii, Takayuki Takeuchi, Hiroaki Moriyama, Yasuo Yamamoto
  • Publication number: 20090278178
    Abstract: Disclosed is a semiconductor device which includes a MIS FET on a surface of a substrate, an insulating film on the substrate to cover the MIS FET, an opening that gets to an impurity diffusing region formed in the insulating film, another opening that gets to a gate electrode or to an extension part of the gate electrode formed in the insulating film, and an electrically conductive member including mainly copper filled in each of the openings. The insulating film includes a layer including, as main components, silicon, oxygen, carbon and hydrogen (FIG. 1).
    Type: Application
    Filed: October 16, 2008
    Publication date: November 12, 2009
    Applicant: NEC CORPORATION
    Inventors: Jun Kawahara, Hironori Yamamoto, Makoto Ueki, Yoshihiro Hayashi
  • Patent number: 7609435
    Abstract: A display medium including a light-modulating layer containing charged mobile particles assuming a color at a lightness corresponding to the dispersion state of the charged mobile particles and first particles with lower mobility than the charged mobile particles. The first particles assume a color at a lightness that is outside a lightness range that the charged mobile particles can exhibit.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: October 27, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hiroaki Moriyama, Yasuo Yamamoto, Jun Kawahara, Masaaki Abe
  • Publication number: 20090201569
    Abstract: A display particle includes: a colored particle including a polymer having a charging group and a colorant; and a reactive silicone polymer or a reactive long-chain alkyl polymer, the polymer being bound to or covering the surface of the colored particle.
    Type: Application
    Filed: September 30, 2008
    Publication date: August 13, 2009
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Ryojiro AKASHI, Jun KAWAHARA
  • Patent number: 7524908
    Abstract: A copolymerized high polymer film includes plural organic polymers, as skeleton, and is manufactured by blowing more than two kinds of organic monomers of respectively specific structures, in a vapor phase condition, onto the surface of a heated substrate, through plasma being generated in a reaction chamber. As a result, manufacture of an organic high polymer film capable of further reducing the effective relative permittivity of organic polymer films as a whole can be achieved, and, at the same time, further improvement in mechanical strength of film as well as film forming speed can be achieved.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: April 28, 2009
    Assignee: NEC Corporation
    Inventors: Jun Kawahara, Keizo Kinoshita, Nobutaka Kunimi, Akinori Nakano
  • Patent number: 7480088
    Abstract: A displaying method includes forming nuclear crystals of a metal on an electrode, and depositing a metal on a surface of the nuclear crystals from a solution including a metallic ion, so as to form particles having a particle diameter corresponding to a display color.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: January 20, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Jun Kawahara, Yasuo Yamamoto, Kei Shimotani
  • Patent number: 7457024
    Abstract: The image display device of the present invention includes: a display layer that comprises a photochromic compound and whose regions, which have been irradiated with visible light, can be optically rewritten in a color corresponding to the color of visible light irradiated thereon; a light-emitting layer in which multiple luminescent elements are arranged in a matrix pattern, the elements irradiating visible light to each different region of the display layer by emitting light; and a drive unit provided with an obtaining unit that obtains image data. Based on image data obtained with the obtaining unit, the drive unit drives each luminescent element corresponding to each pixel of an image according to the image data to irradiate the visible light of a color corresponding to each pixel of the image of the image data.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: November 25, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takayuki Takeuchi, Yasuo Yamamoto, Jun Kawahara, Hiroaki Moriyama, Rie Ishii
  • Publication number: 20080274627
    Abstract: Using a cyclic siloxane compound having a vinyl group directly attached to a silicon atom and a relatively bulky substituent group containing a primary carbon vicinal to the silicon, a dielectric film, especially a low-k interlayer dielectric film can be formed by the plasma-enhanced CVD process.
    Type: Application
    Filed: May 1, 2008
    Publication date: November 6, 2008
    Applicants: SHIN-ETSU CHEMICAL CO., LTD., NEC CORPORATION
    Inventors: Yoshitaka HAMADA, Jun KAWAHARA
  • Patent number: 7439315
    Abstract: A copolymer film having a decreased dielectric constant which is produced by supplying at least two organic monomers as raw materials, forming a film of a copolymer comprising a backbone based on said at least two monomers on a surface of a substrate, and heating the copolymer film at a temperature higher than a temperature at which the copolymer film is formed.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: October 21, 2008
    Assignee: NEC Corporation
    Inventors: Nobutaka Kunimi, Jun Kawahara, Akinori Nakano, Keizo Kinoshita
  • Patent number: 7436577
    Abstract: The present invention provides a display medium comprising a display layer which selectively displays white or black color, and a light-modulating layer provided on the display layer including mobile fine particles which show coloration in a dispersed state, a display device using the display medium, and a display method using the display medium.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: October 14, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hiroaki Moriyama, Yasuo Yamamoto, Jun Kawahara, Rie Ishii, Takayuki Takeuchi
  • Publication number: 20070297040
    Abstract: A predetermined image is displayed forming an electric field in an electrolytic layer comprising an electrolytic solution containing at least a metal ion, thereby, depositing the metal ion in the electrolytic solution layer as a polygonal metal particle.
    Type: Application
    Filed: November 16, 2006
    Publication date: December 27, 2007
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kei Shimotani, Jun Kawahara, Satoshi Tatsuura, Yasuo Yamamoto
  • Publication number: 20070284261
    Abstract: The present invention provides a method for manufacturing silver triangular pyramid particles including: forming an electric field in an electrolytic solution including silver ions and a surfactant to reduce the silver ions into silver triangular pyramid particles.
    Type: Application
    Filed: November 16, 2006
    Publication date: December 13, 2007
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kei Shimotani, Jun Kawahara, Satoshi Tatsuura, Yasuo Yamamoto
  • Publication number: 20070279378
    Abstract: The present invention provides a display medium including: a pair of substrates at least one of which has transparency; supporting members which partition a space between the pair of substrates into plural cells along surfaces of the substrates; metal ions which are injected into the plural cells and are deposited as metal fine particles by an electric field generated in the cells; and plural electrodes that have two or more types of electrode regions having different areas and that are provided in each of the cells on at least one of the pair of substrates.
    Type: Application
    Filed: November 20, 2006
    Publication date: December 6, 2007
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takayuki Takeuchi, Satoshi Tatsuura, Kei Shimotani, Jun Kawahara, Yasuo Yamamoto
  • Publication number: 20070236768
    Abstract: The invention provides a display method for displaying an image by deposition of metal fine particles. The display method includes at least depositing metal fine particles, from an electrolytic solution that has at least a metal ion of the metal particles and that is provided between a pair of substrates having at least one translucent substrate, onto a surface of any one of the pair of substrates by imparting one stimulus. A concentration of the metal ion of the metal fine particles in the electrolytic solution after imparting the stimulus is about 200 mmol/l or less. The invention further provides a display device which uses the display method.
    Type: Application
    Filed: November 15, 2006
    Publication date: October 11, 2007
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Jun Kawahara, Satoshi Tatsuura, Kei Shimotani, Yasuo Yamamoto
  • Publication number: 20070126694
    Abstract: A display medium including a light-modulating layer containing charged mobile particles assuming a color at a lightness corresponding to the dispersion state of the charged mobile particles and first particles with lower mobility than the charged mobile particles. The first particles assume a color at a lightness that is outside a lightness range that the charged mobile particles can exhibit.
    Type: Application
    Filed: June 7, 2006
    Publication date: June 7, 2007
    Inventors: Hiroaki Moriyama, Yasuo Yamamoto, Jun Kawahara, Masaaki Abe