Patents by Inventor Shingo Kataoka

Shingo Kataoka 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: 20060066793
    Abstract: A high-performance liquid crystal display device is provided that can be manufactured at a low cost and a high production yield. In this liquid crystal display device, a liquid crystal composition comprising liquid crystal molecules and a polymerizable compound that can be polymerized by ultraviolet rays or by a combination of ultraviolet rays and heat is disposed between a pair of substrates; the polymerizable compound is polymerized, forming a liquid crystal layer, by an operation including irradiation of ultraviolet rays that do not contain wavelength components of not higher than 313 nm; and uneven portions are installed on the liquid crystal layer contacting surface, or a slit pattern is installed in an electrode, or uneven portions are installed on the liquid crystal layer contacting surface, and a slit pattern is installed in the electrode.
    Type: Application
    Filed: February 15, 2005
    Publication date: March 30, 2006
    Inventors: Katsufumi Ohmuro, Hideaki Tsuda, Shingo Kataoka, Jin Hirosawa
  • Patent number: 6992759
    Abstract: The present invention is a sample holder for spectrum measurement settable in a measuring chamber of a spectrophotometer and being used for measuring a spectrum of a liquid sample, which comprises a holding block (11) having a hole (111) and a light introducing path (112) being provided crosswise, and a light introducing path position adjusting means (12) being located under the holding block (11), said the light introducing path position adjusting means (12) comprising a light introducing path horizontal direction position adjusting means (12-1) and/or a light introducing path vertical direction position adjusting means (12-2), for adjusting so as to the irradiation light is introduced into the liquid sample by aligning a position of the light introducing path (112) with a propagating route of the irradiation light for spectrum measurement, said the holding block (11) further comprising a device for controlling a temperature of said liquid sample.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: January 31, 2006
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kin-ichi Nakayama, Shingo Kataoka
  • Patent number: 6977704
    Abstract: The invention relates to a liquid crystal display based on an MVA mode of multi-division alignment in which alignment states of liquid crystal molecules having a negative dielectric anisotropy are made different from each other, and provides a liquid crystal display in which a drop in transmittance is suppressed and response characteristics are improved.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: December 20, 2005
    Assignee: Fujitsu Display Technologies Corporation
    Inventor: Shingo Kataoka
  • Publication number: 20050264737
    Abstract: A liquid crystal display device which is capable of further decreasing the cost of production yet obtaining a good liquid crystal alignment, and a method of producing the same. The liquid crystal display device comprises a pair of substrates arranged facing each other; a liquid crystal sealed between the substrates; and an ultraviolet ray-cured product for controlling the alignment of the liquid crystal. The ultraviolet ray-cured product is formed near the interfaces to the substrates by polymerizing a polymerizable component mixed in the liquid crystal with light. The polymerizable component contains a polyfunctional monomer having a symmetrical structure, and the ultraviolet ray-cured product has a side-chain structure.
    Type: Application
    Filed: April 5, 2005
    Publication date: December 1, 2005
    Inventors: Shingo Kataoka, Katsufumi Ohmuro, Hideaki Tsuda, Jin Hirosawa
  • Publication number: 20050264730
    Abstract: The invention relates to a transflective liquid crystal display and a method of manufacturing the same and provides a transflective liquid crystal display which can achieve high display characteristics in both of reflective and transmissive modes and a method of manufacturing the same. The display has a pair of substrates provided opposite to each other, a liquid crystal sealed between the pair of substrates, a plurality of pixel regions each having a reflective area which reflects light from the side of one of the substrates and a transmissive area which transmits light from the side of the other of the substrates toward the one of the substrates, and an ultraviolet-hardened material which is a product of polymerization of a polymeric component mixed in the liquid crystal with ultraviolet light and which is formed at a substrate interface in the reflective area to control the alignment of the liquid crystal in the reflective area.
    Type: Application
    Filed: November 10, 2004
    Publication date: December 1, 2005
    Inventors: Shingo Kataoka, Katsufumi Ohmuro, Takahiro Sasaki, Kunihiro Tashiro
  • Publication number: 20050253988
    Abstract: It is an object of the invention to provide a substrate for a liquid crystal display having optical transmittance improved without reducing the speed of a response to a tone change and a liquid crystal display utilizing the same. There is provided a drain bus line formed on an array substrate which sandwiches a liquid crystal in combination with an opposite substrate provided in a face-to-face relationship therewith, a TFT connected to the drain bus line, and a pixel electrode which has stripe-shaped electrodes, along with spaces, connected to the TFT and provided in parallel with the drain bus line, stripe-shaped electrodes in the vicinity of the drain bus line having an electrode width formed narrower than the width of internal electrodes located inside the same.
    Type: Application
    Filed: June 29, 2005
    Publication date: November 17, 2005
    Inventors: Yuichi Inoue, Kazutaka Hanaoka, Yohei Nakanishi, Masakazu Shibasaki, Kimiaki Nakamura, Yoshio Koike, Takahiro Sasaki, Shingo Kataoka
  • Patent number: 6927824
    Abstract: In a vertically aligned liquid crystal display device for controlling liquid crystal molecules alignment in voltage application by providing linear structures or linear slits consisting of a plurality of constituent units to at least one of a pair of substrates having an electrode thereon, there is provided alignment controlling means for forming an alignment singular point s=?1 of liquid crystal molecules at an intersecting point between the structures on the pixel electrode or the slits in the electrode and an edge of a pixel electrode on one of the substrates.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: August 9, 2005
    Assignee: Fujitsu Display Technologies Corporation
    Inventors: Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Kouji Tsukao, Shingo Kataoka, Kimiaki Nakamura, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Hidefumi Yoshida, Yasutoshi Tasaka, Takashi Sasabayashi, Yohei Nakanishi
  • Publication number: 20050146664
    Abstract: The invention relates to a liquid crystal display based on an MVA mode of multi-division alignment in which alignment states of liquid crystal molecules having a negative dielectric anisotropy are made different from each other, and provides a liquid crystal display in which a drop in transmittance is suppressed and response characteristics are improved.
    Type: Application
    Filed: January 5, 2005
    Publication date: July 7, 2005
    Applicant: Fujitsu Display Technologies Corporation
    Inventors: Kazutaka Hanaoka, Seiji Tanuma, Yohei Nakanishi, Kazuya Ueda, Shingo Kataoka, Takahiro Sasaki, Arihiro Takeda, Hideaki Tsuda, Takatoshi Mayama, Yuichi Inoue, Norio Sugiura
  • Publication number: 20050136196
    Abstract: In a method for manufacture of a liquid crystal display device in which a liquid crystal composition is placed between two substrates, after which ultraviolet irradiation is performed to form a liquid crystal layer, a specific polymerizable compound is used, or specific ultraviolet irradiation conditions are adopted, or processing is comprised midway through the ultraviolet irradiation to activate the molecular motion of liquid crystal molecules or to deform the liquid crystal layer. A method for manufacture of a liquid crystal display device and a liquid crystal display device manufactured by this method are provided, in which an alignment control film is rendered unnecessary, and which has such advantages as improved quality of the liquid crystal panel, enhanced production yields, streamlined manufacturing facilities, simplified processes, and reduced costs.
    Type: Application
    Filed: December 7, 2004
    Publication date: June 23, 2005
    Inventor: Shingo Kataoka
  • Patent number: 6903796
    Abstract: In an MVA mode liquid crystal display device, a concentration of a photo-cured product by a photo-curing composition having a liquid skeletal structure for liquid crystal molecules upon spray or bend deformation is set to 0.3 to 3 wt %. The liquid crystal skeletal structure is formed under the tilt state to substrates, and a mean tilt angle of the liquid crystal molecules falls within a range defined by a polar angle of the liquid crystal skeletal structure and a pre-tilt angle of the liquid crystal molecules in the proximity of the substrate interface.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: June 7, 2005
    Assignee: Fujitsu Display Technologies Corporation
    Inventor: Shingo Kataoka
  • Publication number: 20050109985
    Abstract: A liquid crystal panel having a liquid crystal layer sandwiched between a pair of substrates is provide, wherein the liquid crystal layer comprises a liquid crystal and a cross-linked resin, and the cross-linked resin comprises a cross-linked structural part adhered to a liquid crystal layer contacting surface (adhered, cross-linked structural part) and a terminal part rising from the liquid crystal layer contacting surface (rising terminal part). Vertical alignment of the liquid crystal is realized at no voltage application even without help of an alignment control film.
    Type: Application
    Filed: March 22, 2004
    Publication date: May 26, 2005
    Inventors: Shingo Kataoka, Hideo Chida
  • Patent number: 6897929
    Abstract: In a vertically aligned liquid crystal display device for controlling liquid crystal molecules alignment in voltage application by providing linear structures or linear slits consisting of a plurality of constituent units to at least one of a pair of substrates having an electrode thereon, there is provided alignment controlling means for forming an alignment singular point s=?1 of liquid crystal molecules at an intersecting point between the structures on the pixel electrode or the slits in the electrode and an edge of a pixel electrode on one of the substrates.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: May 24, 2005
    Assignee: Fujitsu Display Technologies Corporation
    Inventors: Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Kouji Tsukao, Shingo Kataoka, Kimiaki Nakamura, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Hidefumi Yoshida, Yasutoshi Tasaka, Takashi Sasabayashi, Yohei Nakanishi
  • Patent number: 6888602
    Abstract: In a vertically aligned liquid crystal display device for controlling liquid crystal molecules alignment in voltage application by providing linear structures or linear slits consisting of a plurality of constituent units to at least one of a pair of substrates having an electrode thereon, there is provided alignment controlling means for forming an alignment singular point s=?1 of liquid crystal molecules at an intersecting point between the structures on the pixel electrode or the slits in the electrode and an edge of a pixel electrode on one of the substrates.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: May 3, 2005
    Assignee: Fujitsu Display Technologies Corporation
    Inventors: Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Kouji Tsukao, Shingo Kataoka, Kimiaki Nakamura, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Hidefumi Yoshida, Yasutoshi Tasaka, Takashi Sasabayashi, Yohei Nakanishi
  • Publication number: 20050018119
    Abstract: In a vertically aligned liquid crystal display device for controlling liquid crystal molecules alignment in voltage application by providing linear structures or linear slits consisting of a plurality of constituent units to at least one of a pair of substrates having an electrode thereon, there is provided alignment controlling means for forming an alignment singular point s=?1 of liquid crystal molecules at an intersecting point between the structures on the pixel electrode or the slits in the electrode and an edge of a pixel electrode on one of the substrates.
    Type: Application
    Filed: August 20, 2004
    Publication date: January 27, 2005
    Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventors: Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Kouji Tsukao, Shingo Kataoka, Kimiaki Nakamura, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Hidefumi Yoshida, Yasutoshi Tasaka, Takashi Sasabayashi, Yohei Nakanishi
  • Publication number: 20040233423
    Abstract: The present invention is a sample holder for spectrum measurement settable in a measuring chamber of a spectrophotometer and being used for measuring a spectrum of a liquid sample, which comprises a holding block (11) having a hole (111) and a light introducing path (112) being provided crosswise, and a light introducing path position adjusting means (12) being located under the holding block (11), said the light introducing path position adjusting means (12) comprising a light introducing path horizontal direction position adjusting means (12-1) and/or a light introducing path vertical direction position adjusting means (12-2), for adjusting so as to the irradiation light is introduced into the liquid sample by aligning a position of the light introducing path (112) with a propagating route of the irradiation light for spectrum measurement, said the holding block (11) further comprising a device for controlling a temperature of said liquid sample.
    Type: Application
    Filed: October 14, 2003
    Publication date: November 25, 2004
    Applicant: Nippon Shokubai Co., Ltd.
    Inventors: Kin-ichi Nakayama, Shingo Kataoka
  • Publication number: 20040188653
    Abstract: The invention relates to a liquid crystal display utilizing a vertically aligned state of liquid crystal molecules when no voltage is applied and to a method of manufacturing the same. The invention is aimed at providing a liquid crystal display and a method of manufacturing the same in which the existing step for forming vertical alignment films can be omitted to achieve a cost reduction.
    Type: Application
    Filed: March 25, 2004
    Publication date: September 30, 2004
    Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventors: Shingo Kataoka, Hideaki Tsuda, Katsufumi Ohmuro, Jin Hirosawa, Seiji Tanuma, Yoshio Koike
  • Publication number: 20040169806
    Abstract: In a vertically aligned liquid crystal display device for controlling liquid crystal molecules alignment in voltage application by providing linear structures or linear slits consisting of a plurality of constituent units to at least one of a pair of substrates having an electrode thereon, there is provided alignment controlling means for forming an alignment singular point s=−1 of liquid crystal molecules at an intersecting point between the structures on the pixel electrode or the slits in the electrode and an edge of a pixel electrode on one of the substrates.
    Type: Application
    Filed: March 2, 2004
    Publication date: September 2, 2004
    Applicants: Fujitsu Limited, FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventors: Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Kouji Tsukao, Shingo Kataoka, Kimiaki Nakamura, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Hidefumi Shida, Yasutoshi Tasaka, Takashi Sasabayashi, Yohei Nakanishi
  • Patent number: 6774192
    Abstract: The present invention provides: a photosensitive resin composition, which can form uniform coating films having higher coating film strength without causing surface contamination, decrease of evenness of coating films, decrease of film thickness, and coloring by decomposition in heat treatment of subsequent steps, and has good sensitivity of exposure. The photosensitive resin composition comprises a lactone-ring-containing polymer (A) as an essential component, wherein: the lactone-ring-containing polymer (A) is obtained by carrying out polymerization of comonomers and lactonization at the same time wherein the comonomers include a 2-(hydroxyalkyl)acrylate ester and an acidic-group-containing monomer; and the lactone-ring-containing polymer (A) is obtained by almost quantitatively carrying out lactonization of a 2-(hydroxyalkyl)acrylate ester structural unit.
    Type: Grant
    Filed: December 2, 2001
    Date of Patent: August 10, 2004
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hideo Asano, Kenichi Ueda, Minoru Yamaguchi, Masatoshi Yoshida, Tomomasa Kaneko, Shingo Kataoka
  • Publication number: 20040141126
    Abstract: A slit pattern, which is an orientation control element extending in an oblique direction relative to an edge of a pixel electrode on a surface of a TFT substrate, is formed in the pixel electrode to extend in a substantially parallel direction to an extending direction of a bank-shaped pattern. Furthermore, as an orientation control element, fine slit patterns (concave portions in the pixel electrode) are formed locally in a part near the edge of the pixel electrode except in the pixel electrode to extend in an oblique direction relative to an extending direction of the edge.
    Type: Application
    Filed: September 18, 2003
    Publication date: July 22, 2004
    Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventors: Arihiro Takeda, Shingo Kataoka
  • Publication number: 20040131798
    Abstract: A liquid crystal display device provided with monostable ferroelectric liquid crystals suited for a field sequential drive for displaying dynamic images, or a liquid crystal display device featuring excellent contrast as a result of obtaining good alignment. An upper substrate on which is arranged an upper alignment control layer that is formed on an upper electrode and is performed an aligning treatment, is stuck together with a lower substrate on which is arranged a lower alignment control layer that is formed on a lower electrode and is performed an aligning treatment in the same direction as the upper alignment control layer.
    Type: Application
    Filed: October 31, 2003
    Publication date: July 8, 2004
    Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventor: Shingo Kataoka