Patents by Inventor Kanetaka Sekiguchi

Kanetaka Sekiguchi 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: 7609359
    Abstract: A plurality of projections are formed on one of a pair of substrates in a manner to surround a display area, thereafter a mask for shielding the outside of the display area on the substrate is placed such that the mask is in contact with the projections, and a deposition film is deposited within the display area with the mask being placed. After the mask is removed, a sealing material is placed in a region where the projections are formed. Then, another substrate of the pair of substrates is placed opposed to the one substrate having the projections formed thereon.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: October 27, 2009
    Assignee: Citizen Holdings Co., Ltd.
    Inventor: Kanetaka Sekiguchi
  • Patent number: 7583335
    Abstract: A liquid crystal display device comprising: a first substrate (1) made of a transparent material, provided with signal electrodes and/or display electrodes (9) formed on one face thereof; a second substrate (2) made of a transparent material, provided with opposed electrodes (12) formed thereon; and liquid crystal sealed in-between the first substrate (1) and the second substrate (2) oppositely disposed opposite to each other with a predetermined gap interposed therebetween such that each of the signal electrodes or the display electrodes (9) face each of the opposed electrodes (12) so as to form a pixel. Further, a white diffusing film (22) and a reflector (25) are disposed in that order from of the first substrate (1) side on the second substrate (2).
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: September 1, 2009
    Assignee: Citizen Holdings Co., Ltd.
    Inventor: Kanetaka Sekiguchi
  • Patent number: 7489381
    Abstract: A liquid-crystal optical element comprises a plurality of wiring electrodes formed between a plurality of segment electrodes and a lower transparent substrate and connected electrically to the segment electrodes, individually, and a plurality of contact electrodes connected to the segment electrodes and the corresponding wiring electrodes. The adjacent segment electrodes are different in height position above the lower transparent substrate. A contact electrode that is connected to that one of each two adjacent segment electrodes which is situated on the side of a liquid crystal layer is connected to the destination segment electrode inside its edge, when viewed along a section formed by cutting the segment electrode in the direction perpendicular to the planes of the lower and an upper transparent substrate.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: February 10, 2009
    Assignee: Citizen Holdings Co., Ltd.
    Inventor: Kanetaka Sekiguchi
  • Patent number: 7443464
    Abstract: A partial polarization member is provided on a second substrate. The partial polarization member is provided corresponding to an aperture of a reflection film, and is not provided in other areas that overlap with reflectors of a reflection film. Therefore, light that is incident from a backlight is reflected by the reflection film and returns to the backlight, without generating loss due to absorption or the like. The light that returns to the backlight is reflected by a backlight reflection film of the backlight, and is output to the aperture of the reflection film.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: October 28, 2008
    Assignee: Citizen Holdings Co., Ltd.
    Inventor: Kanetaka Sekiguchi
  • Publication number: 20080151168
    Abstract: A liquid-crystal optical element comprises a plurality of wiring electrodes formed between a plurality of segment electrodes and a lower transparent substrate and connected electrically to the segment electrodes, individually, and a plurality of contact electrodes connected to the segment electrodes and the corresponding wiring electrodes. The adjacent segment electrodes are different in height position above the lower transparent substrate. A contact electrode that is connected to that one of each two adjacent segment electrodes which is situated on the side of a liquid crystal layer is connected to the destination segment electrode inside its edge, when viewed along a section formed by cutting the segment electrode in the direction perpendicular to the planes of the lower and an upper transparent substrate.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 26, 2008
    Inventor: Kanetaka Sekiguchi
  • Patent number: 7321414
    Abstract: A liquid crystal display panel includes a moving image display area in which the pixel portions are arranged in a matrix shape and a pictograph display area in which the pixel portions are formed in a fixed pictograph shape. Moreover, first protective elements are inserted between the respective pixel portions in the moving image display area and a drive circuit for the pixel portions and are arranged in an outer periphery of the moving image display area. Second protective elements are inserted between the respective pixel portions in the pictogram display area and a drive circuit for the pixel portions and arranged in an outer periphery of the pictogram display area.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: January 22, 2008
    Assignees: NEC LCD Technologies, Ltd, Citizen Holdings Co., Ltd
    Inventors: Kanetaka Sekiguchi, Kazutoshi Takahashi, Kosei Miyabe, Takakazu Yano, Takahiko Watanabe, Toshiaki Ishiyama, Shinya Ikeda
  • Patent number: 7215401
    Abstract: A liquid crystal display has a first substrate formed with a picture character pixel electrode for displaying a picture character represented by a fixed pattern, a second substrate formed with a common electrode opposite to the picture character pixel electrode, and a liquid crystal layer sandwiched between the first substrate and the second substrate. The picture character pixel electrode is formed on an interlayer insulating film, and is connected to a picture character signal electrode formed below the interlayer insulating film through a plurality of contact holes formed through the interlayer insulating film.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: May 8, 2007
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Toshiaki Ishiyama, Takahiko Watanabe, Shinya Ikeda, Kazutoshi Takahashi, Kosei Miyabe, Kanetaka Sekiguchi, Takakazu Yano
  • Patent number: 7170568
    Abstract: A liquid crystal shutter device is provided with a liquid crystal cell including a first substrate (1), a second substrate (21), and liquid crystal sandwiched therebetween, pixel electrodes (11, 12) which are signal electrodes and lead-out electrodes (15) provided on the first substrate (1), counter electrodes which are common electrodes facing the pixel electrodes, provided on the second substrate (21), and a plurality of pixel rows (200, 300, 400) which are composed of pixels (2, 3, 4, etc.) formed by overlapped portions of the pixel electrodes and the counter electrodes, and the liquid crystal shutter device controls light applied to a photosensitive member continuously and relatively moving in a direction orthogonal to the pixel rows, in which the counter electrodes are provided separately for the respective pixel rows. Further, an RGB coupling electrode (46) for electrically connecting the counter electrodes of the respective pixel rows is preferably provided.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: January 30, 2007
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Kanetaka Sekiguchi, Sadao Masubuchi
  • Patent number: 7161569
    Abstract: This invention is a driving method of a liquid crystal display panel in which a liquid crystal layer is sealed between a transparent first substrate formed with a plurality of scanning electrodes and a transparent second substrate formed with a plurality of data electrodes, the electrodes being formed on respective inner faces opposing each other, and portions where the scanning electrodes and data electrodes oppose each other with the liquid crystal layer sandwiched therebetween constitute pixel portions respectively, and which performs display by an electrooptical change having a memory property in the liquid crystal layer at each pixel portion, in which selection signals are applied to the plurality of scanning electrodes and a data signal is applied to the data electrode in correspondence with the selection signal of each scanning electrode to control the individual pixel portion independently, and a plurality of selection signals having different selection periods each for selecting one scanning electrod
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: January 9, 2007
    Assignee: Citizen Watch Co., Ltd.
    Inventor: Kanetaka Sekiguchi
  • Publication number: 20060262267
    Abstract: A plurality of projections are formed on one of a pair of substrates in a manner to surround a display area, thereafter a mask for shielding the outside of the display area on the substrate is placed such that the mask is in contact with the projections, and a deposition film is deposited within the display area with the mask being placed. After the mask is removed, a sealing material is placed in a region where the projections are formed. Then, another substrate of the pair of substrates is placed opposed to the one substrate having the projections formed thereon.
    Type: Application
    Filed: May 17, 2006
    Publication date: November 23, 2006
    Applicant: CITIZEN WATCH CO., LTD.
    Inventor: Kanetaka Sekiguchi
  • Patent number: 7136138
    Abstract: A timepiece provided with a liquid crystal display panel (9) for displaying thereon at least one of time information (5) and calendar information (4), wherein a solar battery unit (12) is provided to face at least a part of a visual recognition side surface of the liquid crystal display panel (9) or an opposite-side (lower-side) surface thereof, the light being applied to a power generation portion of the solar battery unit (12) through a transmission portion of the liquid crystal display panel (9) to generate electric power or what is displayed on the liquid crystal display panel (9) being visually recognized through a transmission portion of the solar battery unit (12), a timepiece circuit and the liquid crystal display panel (9) being driven by utilizing the electric power generated by the solar battery unit (12).
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: November 14, 2006
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Kanetaka Sekiguchi, Katsumi Aota, Kozo Miyoshi, Yuichi Akiba
  • Publication number: 20060072047
    Abstract: An EL element (33) is provided on a first substrate (1) to make it possible to perform both light emission display according to the EL element (33) and reflective display according to a liquid crystal display element. An EL control switching element (17) and a liquid crystal layer switching element (18) are provided on a face of the first substrate (1) positioned on the side of a liquid crystal layer (51). The EL control switching element (17) is connected to an anode electrode (21) or a cathode electrode (24) constituting the EL element (33).
    Type: Application
    Filed: September 23, 2003
    Publication date: April 6, 2006
    Inventor: Kanetaka Sekiguchi
  • Patent number: 7019809
    Abstract: A liquid crystal display panel having a first substrate and a second substrate that are opposed to each other with a predetermined gap provided therebetween. A liquid crystal layer is sealed in the gap with a sealant, and pixel portions are formed by electrodes, the electrodes being provided on the first substrate and on the second substrate to oppose to each other via the liquid crystal layer. Lead electrodes for applying electric signals to the electrodes forming the pixel portions are provided on at least the first substrate. An insulating covering member is provided to cover at least portions of the lead electrodes outside the sealant and to overlap with at least a portion of a surface of the second substrate opposite to the liquid crystal layer side. An insulating resin is provided on the insulating covering member or between the insulating covering member and the first substrate.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: March 28, 2006
    Assignee: Citizen Watch Co., Ltd
    Inventor: Kanetaka Sekiguchi
  • Publication number: 20050253773
    Abstract: To reduce the number of panel driving circuits of a display apparatus having a plurality of display panels, and to minimize the mounting area of the display apparatus, a display apparatus with two kinds of display panels of a first display panel (4) and a second display panel (5) includes a driving circuit mounted on the first display panel (4). A driving signal from the driving circuit is transmitted to the second display panel (5) via an electrode provided on the first display panel (4). An inter-panel switching element is provided between the first display panel (4) and the second display panel (5), thereby controlling turning passage and non-passage of the second display panel (5).
    Type: Application
    Filed: September 25, 2003
    Publication date: November 17, 2005
    Inventor: Kanetaka Sekiguchi
  • Publication number: 20050253976
    Abstract: A liquid crystal display panel includes a moving image display area in which the pixel portions are arranged in a matrix shape and a pictograph display area in which the pixel portions are formed in a fixed pictograph shape. Moreover, first protective elements are inserted between the respective pixel portions in the moving image display area and a drive circuit for the pixel portions and are arranged in an outer periphery of the moving image display area. Second protective elements are inserted between the respective pixel portions in the pictograph display area and a drive circuit for the pixel portions and arranged in an outer periphery of the pictograph display area.
    Type: Application
    Filed: April 11, 2003
    Publication date: November 17, 2005
    Inventors: Kanetaka Sekiguchi, Kazutoshi Takahashi, Kosei Miyabe, Takakazu Yano, Takahiko Watanabe, Toshiaki Ishiyama, Shinya Ikeda
  • Publication number: 20050212995
    Abstract: A partial polarization member is provided on a second substrate. The partial polarization member is provided corresponding to an aperture of a reflection film, and is not provided in other areas that overlap with reflectors of a reflection film. Therefore, light that is incident from a backlight is reflected by the reflection film and returns to the backlight, without generating loss due to absorption or the like. The light that returns to the backlight is reflected by a backlight reflection film of the backlight, and is output to the aperture of the reflection film.
    Type: Application
    Filed: March 23, 2005
    Publication date: September 29, 2005
    Inventor: Kanetaka Sekiguchi
  • Patent number: 6937301
    Abstract: A watch unit having a time-displaying section, including a reflection-type polarizing film 14 disposed on an upper portion or a lower portion of the time-displaying section or a portion comprising a part of the time-displaying section, an optical modulation section which varies the ratio of a transmission axis to a reflection axis of the reflection-type polarizing film 14, and a shutter function to shield a portion of or all of the watch unit having the time-display section by varying the reflection intensity and the transmission intensity in relation to the light incident direction using the reflection-type polarinzing film 14 and the optical modulation section, to enhance the appearance and to improve the versatility of the watch unit.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: August 30, 2005
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Kanetaka Sekiguchi, Masafumi Ide, Takashi Akiyama, Masami Kikuchi, Yuichi Akiba, Koji Nakagawa, Koichi Hoshino, Takashi Toida
  • Publication number: 20050174510
    Abstract: A difference in potential between a common power supply voltage and a data signal voltage required for driving an active-type liquid crystal display device is used, thereby making it possible to display a pictogram without additionally input a new signal to an opposite side. Moreover, a gray scale of a data signal is adjusted, thereby reducing a direct-current component in pictogram driving. A pictogram electrode in a pictogram display area is driven by a part of extra output terminals of a data driver for driving a moving image display area. With this, in a liquid crystal display device using thin-film transistors (TFTs) with a common substrate being an electrode on its entire surface, a simple structure including a moving image area and a pictogram display area is provided.
    Type: Application
    Filed: April 11, 2003
    Publication date: August 11, 2005
    Inventors: Takakazu Yano, Kazutoshi Takahashi, Kosei Miyabe, Kanetaka Sekiguchi, Takahiko Watanabe, Toshiaki Ishiyama, Shinya Ikeda
  • Patent number: 6847428
    Abstract: A liquid crystal display panel in which a signal electrode provided on a first substrate (1), a counter electrode provided on a second substrate (2), and a liquid crystal layer (18) between the substrates, and which carries out display without polarizers by changing the degree of transmission and scattering by means of a voltage applied to a pixel part. A light source part (27) is provided along the periphery of both substrates (1, 2), and a polarization separating device (30) is provided between the liquid crystal panel and the light source part (27).
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: January 25, 2005
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Kanetaka Sekiguchi, Nobuyuki Hashimoto, Koichi Hoshino, Masami Kikuchi
  • Patent number: 6819374
    Abstract: A liquid crystal display panel has a first substrate and a second substrate composed of a transparent material and disposed opposite each other across a gap, display electrodes provided on one of the opposed surfaces of the first and second substrates, transparent counter electrodes provided on the other opposed surface, a region between each display electrode and an opposed counter electrode constituting a pixel region, a liquid crystal layer filled in the gap between the first substrate and the second substrate, and a color filter or a reflecting film provided at each pixel region. The color filter or the reflecting film at each pixel region is disposed as divided into multiple segments and light transmitting portions are provided around the color filter or reflecting film. Otherwise each color filter or reflecting film is partially provided with multiple openings or other portions with high light transmittance.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: November 16, 2004
    Inventor: Kanetaka Sekiguchi