Patents by Inventor Hideki Yoshinaga
Hideki Yoshinaga 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).
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Patent number: 8552643Abstract: A display apparatus has a region where a plurality of grooves are arranged along contours of a display region so as to extend in a direction across the contours of the display region and where an organic protective film is provided so as to cover the grooves and a region, surrounding the region where the grooves are provided, where the grooves and the organic protective film are not provided.Type: GrantFiled: November 12, 2010Date of Patent: October 8, 2013Assignee: Canon Kabushiki KaishaInventor: Hideki Yoshinaga
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Patent number: 8416174Abstract: A display apparatus includes a substrate having a metal layer, a display device disposed on the substrate, with the display device including a display portion and a driving portion, and a sensor portion for detecting a coordinate using electromagnetic induction. The sensor portion is arranged on an opposite side of the substrate from where the display device is disposed, and the metal layer of the substrate has an electromagnetic wave transmissive structure.Type: GrantFiled: December 8, 2004Date of Patent: April 9, 2013Assignee: Canon Kabushiki KaishaInventors: Hideki Yoshinaga, Hideo Mori, Hideaki Okamoto
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Patent number: 8259062Abstract: An electrophoretic display device is constituted by a first substrate and a second substrate which are disposed with a spacing therebetween, a partition wall disposed in the spacing, electrophoretic particles sealed in a closed space defined by the first and second substrates and the partition wall, a first electrode disposed at a side surface of the closed space, and a second electrode disposed at a bottom surface of the closed space. In the electrophoretic display device, a distribution state of the electrophoretic particles is changed to effect display, and the first electrode has an area substantially equal to or larger than an area of the second electrode.Type: GrantFiled: July 28, 2008Date of Patent: September 4, 2012Assignee: Canon Kabushiki KaishaInventors: Hikaru Ito, Hideki Yoshinaga, Hideo Mori
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Publication number: 20110241036Abstract: Provided is a light-emitting apparatus including a plurality of light-emitting devices arranged on a substrate, the plurality of light-emitting devices each including a pair of electrodes and an organic emission layer which is interposed between the pair of electrodes with one of the pair of electrodes serving as an anode and another one of the pair of electrodes serving as a cathode, wherein one of the pair of electrodes is an electrode common to the plurality of light-emitting devices, and wherein, of the plurality of light-emitting devices, ones that have the common electrode as their anodes and ones that have the common electrode as their cathodes are arranged alternately.Type: ApplicationFiled: June 17, 2009Publication date: October 6, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Hideki Yoshinaga, Hideo Mori
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Patent number: 8022399Abstract: The organic light-emitting device of the present invention includes: a substrate; a plurality of organic light-emitting elements formed on the substrate; and an element isolation layer formed between the plurality of organic light-emitting elements, each of the elements having: on the substrate in mentioned order, a first electrode patterned for each of the organic light-emitting elements, an organic compound layer patterned for each of the organic light-emitting elements, and a second electrode; the element isolation layer formed across a space between the plurality of first electrodes to cover the ends of the first electrodes, and having an opening at a portion corresponding to the organic light-emitting elements, and at least a portion of the element isolation layer in contact with the organic compound layer is formed of an inorganic material.Type: GrantFiled: September 10, 2007Date of Patent: September 20, 2011Assignee: Canon Kabushiki KaishaInventor: Hideki Yoshinaga
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Patent number: 7985969Abstract: A field-effect transistor including an electrically conductive substrate; a first insulating film coating the electrically conductive substrate; a gate electrode disposed on the electrically conductive substrate with the first insulating film interposed therebetween; a source electrode; a drain electrode opposing the source electrode with the channel therebetween; a second insulating film covering the gate electrode; and a semiconductor layer having a width larger than a width of the gate electrode in the channel width direction and being partly provided on the gate electrode with the second insulating film interposed therebetween so that the gate electrode, the second insulating film, and the semiconductor layer are laminated in the channel.Type: GrantFiled: February 4, 2009Date of Patent: July 26, 2011Assignee: Canon Kabushiki KaishaInventors: Hideki Yoshinaga, Hideo Mori, Nobutaka Ukigaya, Nozomu Izumi
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Publication number: 20110141717Abstract: A display apparatus has a region where a plurality of grooves are arranged along contours of a display region so as to extend in a direction across the contours of the display region and where an organic protective film is provided so as to cover the grooves and a region, surrounding the region where the grooves are provided, where the grooves and the organic protective film are not provided.Type: ApplicationFiled: November 12, 2010Publication date: June 16, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Hideki Yoshinaga
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Patent number: 7872255Abstract: An organic light-emitting device includes an electron injection layer and an element isolation layer. The electron injection layer contains at least one of an alkali metal, an alkaline earth metal, an alkali metal compound, or an alkaline earth metal compound. A layer having the same composition of the electron injection layer is disposed over the electron injection layer in a region surrounding the light-emitting region.Type: GrantFiled: March 27, 2007Date of Patent: January 18, 2011Assignee: Canon Kabushiki KaishaInventor: Hideki Yoshinaga
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Patent number: 7839073Abstract: A display apparatus includes a display substrate having an element isolation film surrounding peripheral edges of a plurality of first electrodes, and a laminated area composed of a second electrode and auxiliary electrodes and disposed on the element isolation film. Each of the auxiliary electrode is composed of first auxiliary electrodes arranged in a broken line pattern, and second auxiliary electrodes provided on the first auxiliary electrodes so as to cover areas where the first auxiliary electrodes are not provided. A wiring interval between auxiliary electrodes is smaller than a wiring length of an auxiliary electrode, and the film thickness of each of the first auxiliary electrodes is in the range of 5 to 30 nm.Type: GrantFiled: September 25, 2008Date of Patent: November 23, 2010Assignee: Canon Kabushiki KaishaInventor: Hideki Yoshinaga
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Patent number: 7812812Abstract: A display device is driven by a driving method including a first drawing step of displaying an image by controlling a display medium on the basis of a first image signal, and a second drawing step of overwriting a handwritten image on the displayed image by controlling the display medium on the basis of a second image signal. In the first drawing step, an image is drawn by a reset drive for resetting a previous display image and a writing drive for writing an image, and in the second drawing step, the writing drive of a minimum or a substantially maximum luminance is performed without effecting the reset drive only in an area in which the handwritten image is written.Type: GrantFiled: March 24, 2004Date of Patent: October 12, 2010Assignee: Canon Kabushiki KaishaInventors: Hideki Yoshinaga, Hideo Mori, Tatsuhito Goden, Noriyuki Shikina
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Patent number: 7791677Abstract: Provided is a novel structure of an active matrix TFT backplane. In order to form an auxiliary capacitor by a pixel electrode or a drain electrode of a TFT connected therewith, a base metal layer is formed on a glass substrate and a substrate insulating layer is formed on an entire surface thereof. By the structure, position alignment of the drain electrode with a counter electrode is unnecessary. An area for electrical capacitor formation is determined by size precision of the drain electrode, so a variation in electrical capacitance is suppressed to a small value.Type: GrantFiled: May 30, 2007Date of Patent: September 7, 2010Assignee: Canon Kabushiki KaishaInventors: Hideki Yoshinaga, Hideo Mori
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Patent number: 7724234Abstract: A panel for a display device includes an electroconductive substrate formed from an electroconductive metal material, a substrate insulating layer arranged on the electroconductive substrate, an X-direction electric wiring group and a Y-direction electric wiring group arranged on the electroconductive substrate, pixels arranged in a matrix, a TFT element for driving the pixel, and a control unit for controlling, to a predetermined potential, a substrate potential of the electroconductive substrate. The TFT element has a reverse stagger structure, with the substrate insulating layer being arranged between the electroconductive substrate and a gate electrode of the TFT element, a gate insulating layer of the TFT element is arranged between a drain electrode of the TFT element and the electroconductive substrate, and an electric capacitor is formed in a part of the substrate insulating layer between the drain electrode and the electroconductive substrate.Type: GrantFiled: September 1, 2005Date of Patent: May 25, 2010Assignee: Canon Kabushiki KaishaInventors: Hideki Yoshinaga, Satoshi Itabashi
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Publication number: 20100078627Abstract: The organic light-emitting device of the present invention includes: a substrate; a plurality of organic light-emitting elements formed on the substrate; and an element isolation layer formed between the plurality of organic light-emitting elements, each of the elements having: on the substrate in mentioned order, a first electrode patterned for each of the organic light-emitting elements, an organic compound layer patterned for each of the organic light-emitting elements, and a second electrode; the element isolation layer formed across a space between the plurality of first electrodes to cover the ends of the first electrodes, and having an opening at a portion corresponding to the organic light-emitting elements, and at least a portion of the clement isolation layer in contact with the organic compound layer is formed of an inorganic material.Type: ApplicationFiled: September 10, 2007Publication date: April 1, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Hideki Yoshinaga
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Patent number: 7605899Abstract: A display apparatus includes a display panel including pixels arranged in a matrix, pixel electrodes provided to the pixels, respectively, a common electrode provided commonly to the pixels, and scanning lines and signal lines for supplying a voltage to the pixel electrodes. In addition, a drive circuit is connected to the common electrode, the scanning lines, and the signal lines, and a control circuit provides a signal to the drive circuit. The control circuit selectively switches between a display drive mode in which an image is displayed on the display panel through sequential scanning of the scanning lines and application of a variable voltage to pixels via the signal lines by the drive circuit and a rewriting drive mode in which selected pixels are rewritten into black or white through application of a voltage, which is higher than a range of the variable voltage, to the selected pixels on a scanning line selected by the drive circuit.Type: GrantFiled: December 3, 2004Date of Patent: October 20, 2009Assignee: Canon Kabushiki KaishaInventors: Noriyuki Shikina, Hideo Mori, Hideki Yoshinaga, Tatsuhito Goden
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Patent number: 7550308Abstract: A field-effect transistor including an electrically conductive substrate; a first insulating film coating the electrically conductive substrate; a gate electrode disposed on the electrically conductive substrate with the first insulating film interposed therebetween; a source electrode; a drain electrode opposing the source electrode with the channel therebetween; a second insulating film covering the gate electrode; and a semiconductor layer having a width larger than a width of the gate electrode in the channel width direction and being partly provided on the gate electrode with the second insulating film interposed therebetween so that the gate electrode, the second insulating film, and the semiconductor layer are laminated in the channel.Type: GrantFiled: May 26, 2006Date of Patent: June 23, 2009Assignee: Canan Kabushiki KaishaInventors: Hideki Yoshinaga, Hideo Mori, Nobutaka Ukigaya, Nozomu Izumi
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Publication number: 20090140258Abstract: A field-effect transistor including an electrically conductive substrate; a first insulating film coating the electrically conductive substrate; a gate electrode disposed on the electrically conductive substrate with the first insulating film interposed therebetween; a source electrode; a drain electrode opposing the source electrode with the channel therebetween; a second insulating film covering the gate electrode; and a semiconductor layer having a width larger than a width of the gate electrode in the channel width direction and being partly provided on the gate electrode with the second insulating film interposed therebetween so that the gate electrode, the second insulating film, and the semiconductor layer are laminated in the channel.Type: ApplicationFiled: February 4, 2009Publication date: June 4, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Hideki Yoshinaga, Hideo Mori, Nobutaka Ukigaya, Nozomu Izumi
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Publication number: 20090091257Abstract: A display apparatus includes a display substrate having an element isolation film surrounding peripheral edges of a plurality of first electrodes, and a laminated area composed of a second electrode and auxiliary electrodes and disposed on the element isolation film. Each of the auxiliary electrode is composed of first auxiliary electrodes arranged in a broken line pattern, and second auxiliary electrodes provided on the first auxiliary electrodes so as to cover areas where the first auxiliary electrodes are not provided. A wiring interval between auxiliary electrodes is smaller than a wiring length of an auxiliary electrode, and the film thickness of each of the first auxiliary electrodes is in the range of 5 to 30 nm.Type: ApplicationFiled: September 25, 2008Publication date: April 9, 2009Applicant: CANON KABUSHIKI KAISHAInventor: Hideki Yoshinaga
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Publication number: 20080303774Abstract: A display apparatus includes a substrate having a metal layer, a plurality of scanning signal lines and a plurality of data signal lines which intersect with each other and are disposed on the substrate, a display device which has a display element located at an intersecting position of the scanning and data signal lines and is driven by a voltage signal supplied to the scanning and data signal lines, a plurality of coils disposed in parallel with each other on the substrate, and a circuit for detecting currents passing through the plurality of coils by the action of electromagnetic induction of an electromagnetic wave locally generated at a surface of the display device to determine a generation position of the electromagnetic wave by a position of the coils through which the currents pass. The metal layer as a substrate material is a thin electroconductive metal plate which is flexible and not readily broken.Type: ApplicationFiled: December 8, 2004Publication date: December 11, 2008Applicant: Canono Kabushiki KaishaInventors: Hideki Yoshinaga, Hideo Mori, Hideaki Okamoto
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Publication number: 20080284722Abstract: An electrophoretic display device is constituted by a first substrate and a second substrate which are disposed with a spacing therebetween, a partition wall disposed in the spacing, electrophoretic particles sealed in a closed space defined by the first and second substrates and the partition wall, a first electrode disposed at a side surface of the closed space, and a second electrode disposed at a bottom surface of the closed space. In the electrophoretic display device, a distribution state of the electrophoretic particles is changed to effect display, and the first electrode has an area substantially equal to or larger than an area of the second electrode.Type: ApplicationFiled: July 28, 2008Publication date: November 20, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Hikaru Ito, Hideki Yoshinaga, Hideo Mori
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Patent number: 7439949Abstract: A display apparatus includes a matrix display panel including scanning lines and signal lines disposed so as to form pixels each at an intersection of the scanning and signal lines, and a drive circuit for applying a voltage to the scanning and signal lines, the drive circuit generates a signal voltage depending on an image data inputted externally and applies the signal voltage to the signal lines while sequentially applying a selection voltage to the scanning line to effect writing of an image in the display panel. The drive circuit has a correction function of correcting a signal voltage depending on an image data in current image writing, at the time of image writing to the display panel, on the basis of a signal voltage in preceding image writing and an elapsed time from the preceding image writing, thereby to apply the corrected signal voltage to the signal lines.Type: GrantFiled: March 4, 2004Date of Patent: October 21, 2008Assignee: Canon Kabushiki KaishaInventors: Noriyuki Shikina, Hideo Mori, Hideki Yoshinaga, Tatsuhito Goden