Patents by Inventor Kuniaki Okada
Kuniaki Okada 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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Publication number: 20190121181Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, and a plurality of columnar spacers. The pixel arrangement is a stripe arrangement including red, green and blue pixel columns. The first substrate includes TFTs, one for each pixel, wherein each TFT includes an oxide semiconductor layer. The second substrate includes a color filter layer and a light-blocking layer. The light-blocking layer includes a plurality of first shading portions extending along the column direction, and a plurality of second shading portions extending along the row direction. Each of the columnar spacers is aligned with one of the second shading portions.Type: ApplicationFiled: September 28, 2018Publication date: April 25, 2019Inventors: KUNIAKI OKADA, SEIICHI UCHIDA
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Patent number: 10243083Abstract: A semiconductor device (1001) includes: a thin film transistor (101) including an oxide semiconductor layer (16) including a channel region, and a source contact region and a drain contact region arranged on opposite sides of the channel region; an insulating layer arranged so as to cover the oxide semiconductor layer (16), the insulating layer having a contact hole (CH) through which the drain contact region is exposed; and a transparent electrode (24) to be in contact with the drain contact region in the contact hole (CH), wherein: as seen from a direction normal to the substrate, at least a part R of the drain contact region overlaps a gate electrode (12); and on an arbitrary cross section that extends in a channel width direction across the at least part (R) of the drain contact region, a width of the oxide semiconductor layer (16) is greater than a width of the gate electrode (12), and the gate electrode (12) is covered by the oxide semiconductor layer (16) with the gate insulating layer therebetween.Type: GrantFiled: November 14, 2016Date of Patent: March 26, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Seiichi Uchida, Kuniaki Okada
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Publication number: 20190081076Abstract: An array substrate (thin film transistor substrate) 11b includes a source line (line) 20, a TFT (thin film transistor) 17 including a plurality of electrodes 17a, 17b, and 17c, and a line connector 31 made of light-transmitting conductive material and connected to the source line 20. At least a portion of the line connector 31 includes one of electrodes 17a, 17b, and 17c.Type: ApplicationFiled: February 28, 2017Publication date: March 14, 2019Inventors: Kuniaki OKADA, Seiichi UCHIDA, Naoki UEDA, Takahiro SASAKI
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Patent number: 10197874Abstract: A first substrate (10) of a liquid crystal display device (100) includes a TFT (2) that includes an oxide semiconductor layer (2a). A second substrate (20) includes a color filter layer (22) and a light-shielding layer (21). The light-shielding layer has a first TFT light-shielding portion (21t1) for each row in at least a blue pixel column, and a second TFT light-shielding portion (21t2) every n rows (n represents an integer of 2 or more) in a pixel column in which at least one type of color filter other than blue color filters is provided, the second TFT light-shielding portion having a larger area than the first TFT light-shielding portion. A columnar spacer (40) is arranged so as not to overlap the first TFT light-shielding portion but to overlap the second TFT light-shielding portion.Type: GrantFiled: June 24, 2016Date of Patent: February 5, 2019Assignee: Sharp Kabushiki KaishaInventors: Kuniaki Okada, Seiichi Uchida
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Publication number: 20180358469Abstract: A semiconductor device (1001) includes: a thin film transistor (101) including an oxide semiconductor layer (16) including a channel region, and a source contact region and a drain contact region arranged on opposite sides of the channel region; an insulating layer arranged so as to cover the oxide semiconductor layer (16), the insulating layer having a contact hole (CH) through which the drain contact region is exposed; and a transparent electrode (24) to be in contact with the drain contact region in the contact hole (CH), wherein: as seen from a direction normal to the substrate, at least a part R of the drain contact region overlaps a gate electrode (12); and on an arbitrary cross section that extends in a channel width direction across the at least part (R) of the drain contact region, a width of the oxide semiconductor layer (16) is greater than a width of the gate electrode (12), and the gate electrode (12) is covered by the oxide semiconductor layer (16) with the gate insulating layer therebetween.Type: ApplicationFiled: November 14, 2016Publication date: December 13, 2018Inventors: Seiichi UCHIDA, Kuniaki OKADA
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Publication number: 20180348560Abstract: An array board 11b includes a gate line 19, a TFT 17, a pixel electrode 18, a display pixel PX, and a second interlayer insulation film 27. The TFT 17 includes a gate electrode 17a formed from a part of the gate line 19, a channel section 17d formed from an oxide semiconductor film 24, a source section 17b connected to one end of the channel section 17d, and a drain section 17c connected to another end of the channel section 17d and formed from the oxide semiconductor film 24 having resistance lower than the channel section 17d. The pixel electrode 18 is connected to the drain section 17c. The display pixel PX includes the TFT 17 and the pixel electrode 18. The second interlayer insulation film 27 has a second hole in a position overlapping the pixel electrode and the drain section 17c and not overlapping the gate electrode 17a.Type: ApplicationFiled: February 17, 2017Publication date: December 6, 2018Inventors: Seiichi UCHIDA, Kuniaki OKADA, Naoki UEDA, Takahiro SASAKI
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Patent number: 10082715Abstract: A conductive element includes: a first conductive film; a second conductive film connected to the first conductive film; a first insulating film covering the first conductive film and disposed in a layer below the second conductive film, the first insulating film having a contact hole exposing at least an edge face of the first conductive film and thereby connecting the second conductive film to the first conductive film; a second insulating film disposed in a layer above the second insulating film so as to straddle the contact hole; and a third conductive film disposed in a layer above the second conductive film with the second insulating film between the second and third conductive films, the third conductive film having a conductive film opening that contains a location overlapping the edge face of the first conductive film in a plan view.Type: GrantFiled: July 29, 2015Date of Patent: September 25, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Kuniaki Okada, Seiichi Uchida
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Publication number: 20180259820Abstract: A semiconductor device (100A) includes a thin film transistor (10), an inter-layer insulation layer (22) covering the thin film transistor, and a transparent conductive layer (24) formed on the inter-layer insulation layer. The metal oxide layer (16) of the thin film transistor includes a first portion (16a) overlapping the gate electrode (12) via a gate insulation layer (14) and a second portion (16b) not overlapping the gate electrode (12). The second portion (16b) crosses a different edge (e2) different from an edge (e1) of the drain electrode (18d) on a side of the first portion when viewed in the normal direction of the substrate (11). The inter-layer insulation layer has a contact hole (22a) disposed to overlap a part of the drain electrode (18d) and at least a part of the second portion (16b) of the metal oxide layer when viewed in the normal direction of the substrate.Type: ApplicationFiled: December 14, 2015Publication date: September 13, 2018Applicant: Sharp Kabushiki KaishaInventors: KUNIAKI OKADA, SEIICHI UCHIDA, NAOKI UEDA, SUMIO KATOH
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Publication number: 20180120656Abstract: A first substrate (10) of a liquid crystal display device (100) includes a TFT (2) that includes an oxide semiconductor layer (2a). A second substrate (20) includes a color filter layer (22) and a light-shielding layer (21). The light-shielding layer has a first TFT light-shielding portion (21t1) for each row in at least a blue pixel column, and a second TFT light-shielding portion (21t2) every n rows (n represents an integer of 2 or more) in a pixel column in which at least one type of color filter other than blue color filters is provided, the second TFT light-shielding portion having a larger area than the first TFT light-shielding portion. A columnar spacer (40) is arranged so as not to overlap the first TFT light-shielding portion but to overlap the second TFT light-shielding portion.Type: ApplicationFiled: June 24, 2016Publication date: May 3, 2018Inventors: Kuniaki OKADA, Seiichi UCHIDA
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Publication number: 20170363894Abstract: A first substrate of a display device includes a TFT provided for each pixel and including an oxide semiconductor layer. A second substrate includes a color filter layer and a light blocking layer. At least one of a first, second and third color filter included in the color filter layer has an average transmittance of 0.2% or less for visible light having a wavelength of 450 nm or less. In pixels provided with color filters having an average transmittance of 0.2% or less for visible light having a wavelength of 450 nm or less, the light blocking layer (a) includes a TFT shading portion extending along a channel length direction and having a width that is less than or equal to a length of the oxide semiconductor layer along a channel width direction; (b) includes a TFT shading portion extending along the channel width direction and having a width that is less than or equal to the length of the oxide semiconductor layer along the channel length direction; or (c) includes no TFT shading portion.Type: ApplicationFiled: December 11, 2015Publication date: December 21, 2017Inventors: SEIICHI UCHIDA, KUNIAKI OKADA, NAOKI UEDA
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Publication number: 20170227802Abstract: A conductive element includes: a first conductive film; a second conductive film connected to the first conductive film; a first insulating film covering the first conductive film and disposed in a layer below the second conductive film, the first insulating film having a contact hole exposing at least an edge face of the first conductive film and thereby connecting the second conductive film to the first conductive film; a second insulating film disposed in a layer above the second insulating film so as to straddle the contact hole; and a third conductive film disposed in a layer above the second conductive film with the second insulating film between the second and third conductive films, the third conductive film having a conductive film opening that contains a location overlapping the edge face of the first conductive film in a plan view.Type: ApplicationFiled: July 29, 2015Publication date: August 10, 2017Applicant: Sharp Kabushiki KaishaInventors: Kuniaki OKADA, Seiichi UCHIDA
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Patent number: 9608008Abstract: Each pixel region of an active matrix substrate includes a thin-film transistor, an interlayer insulating layer that includes an organic insulating layer, a transparent connection layer formed on the interlayer insulating layer, an inorganic insulating layer formed on the transparent connection layer, and a pixel electrode formed on the inorganic insulating layer. The transparent connection layer contacts a drain electrode inside of a first contact hole formed in the interlayer insulating layer. The pixel electrode contacts the transparent connection layer inside of a second contact hole formed in the inorganic insulating layer. The first contact hole and the second contact hole do not overlap with one another when a substrate is viewed from a normal direction. Inside the first contact hole, a bottom surface and sidewalls of the first contact hole are covered by the transparent connection layer, the inorganic insulating layer, and the pixel electrode.Type: GrantFiled: February 12, 2015Date of Patent: March 28, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Kuniaki Okada, Seiichi Uchida
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Publication number: 20160358943Abstract: Each pixel region of an active matrix substrate includes a thin-film transistor, an interlayer insulating layer that includes an organic insulating layer, a transparent connection layer formed on the interlayer insulating layer, an inorganic insulating layer formed on the transparent connection layer, and a pixel electrode formed on the inorganic insulating layer. The transparent connection layer contacts a drain electrode inside of a first contact hole formed in the interlayer insulating layer. The pixel electrode contacts the transparent connection layer inside of a second contact hole formed in the inorganic insulating layer. The first contact hole and the second contact hole do not overlap with one another when a substrate is viewed from a normal direction. Inside the first contact hole, a bottom surface and sidewalls of the first contact hole are covered by the transparent connection layer, the inorganic insulating layer, and the pixel electrode.Type: ApplicationFiled: February 12, 2015Publication date: December 8, 2016Applicant: Sharp Kabushiki KaishaInventors: Kuniaki Okada, Seiichi Uchida
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Patent number: 8944809Abstract: A tubular combustion chamber including a tubular combustion chamber whose front-end is open; and, fuel-gas spraying nozzles and oxygen-containing-gas spraying nozzles, for spraying a fuel and an oxygen-containing-gas separately and individually, or for spraying a premixed gas; wherein respective orifices of the respective nozzles face toward an inner surface of the combustion chamber, so as to spray the fuel-gas and the oxygen-containing-gas in a neighborhood of a tangential direction of an inner circumferential wall of the combustion chamber; wherein the tubular flame burner is a multi-stage tubular burner that is unified in a body, by using a plurality of the tubular flame burners, and by connecting the front-end of the tubular flame burner with a smaller inner diameter of the combustion chamber into the rear-end of the tubular flame burner with a greater inner diameter of the combustion chamber.Type: GrantFiled: December 15, 2009Date of Patent: February 3, 2015Assignee: JFE Steel CorporationInventors: Kuniaki Okada, Munehiro Ishioka, Hitoshi Oishi, Tatsuya Shimada, Koichi Takashi, Yutaka Suzukawa, Yoshiki Fujii, Takamitsu Kusada
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Publication number: 20100104991Abstract: A tubular flame burner including a tubular combustion chamber having two ends, wherein one end is an open front-end and the other end is a rear-end to which an ignition device is mounted; and fuel-gas spraying nozzles and oxygen-containing-gas spraying nozzles, wherein respective orifices of the respective nozzles face toward an inner surface of the combustion chamber, so as to spray a fuel-gas and an oxygen-containing-gas in a neighborhood of a tangential direction of an inner circumferential wall of the combustion chamber; wherein an ignition device is disposed at a position between a point of a tube axis extending along a longitudinal direction of the combustion chamber, and a point of an axis apart away, by ½ of a radius of the combustion chamber, from the point of the tube axis along a cross-sectional direction orthogonal to the longitudinal direction.Type: ApplicationFiled: December 15, 2009Publication date: April 29, 2010Applicant: JFE Steel CorporationInventors: Kuniaki Okada, Munehiro Ishioka, Hitoshi Oishi, Tatsuya Shimada, Koichi Takashi, Yutaka Suzukawa, Yoshiki Fujii, Takamitsu Kusada
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Publication number: 20100099052Abstract: A tubular combustion chamber including a tubular combustion chamber whose front-end is open; and, fuel-gas spraying nozzles and oxygen-containing-gas spraying nozzles, for spraying a fuel and an oxygen-containing-gas separately and individually, or for spraying a premixed gas; wherein respective orifices of the respective nozzles face toward an inner surface of the combustion chamber, so as to spray the fuel-gas and the oxygen-containing-gas in a neighborhood of a tangential direction of an inner circumferential wall of the. combustion chamber; wherein the tubular flame burner is a multi-stage tubular burner that is unified in a body, by using a plurality of the tubular flame burners, and by connecting the front-end of the tubular flame burner with a smaller inner diameter of the combustion chamber into the rear-end of the tubular flame burner with a greater inner diameter of the combustion chamber.Type: ApplicationFiled: December 15, 2009Publication date: April 22, 2010Applicant: JFE Steel CorporationInventors: Kuniaki Okada, Munehiro Ishioka, Hitoshi Oishi, Tatsuya Shimada, Koichi Takashi, Yutaka Suzukawa, Yoshiki Fujii, Takamitsu Kusada
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Patent number: 7654819Abstract: A tubular flame burner, a combustion method, and combustion controller, are disclosed. Here, the tubular flame burner comprises: a tubular combustion chamber whose h one end is open; fuel-spraying nozzles and oxygen-containing-gas spraying nozzles. The respective nozzle orifices are formed in the inner face of the combustion chamber so that each spraying direction is in a neighborhood of a tangential direction of the inner circumferential wall of the combustion chamber. And an ignition device is disposed at a position r/2 from the tube axis of the combustion chamber (r: the radius of the combustion chamber). The length of the combustion chamber can be adjusted, the tubular flame burner is a multi-stage burner formed of multiple tubular flame burners, and a gap between the inner tube and the outer tube serves as a gas-flow path.Type: GrantFiled: August 7, 2003Date of Patent: February 2, 2010Assignee: JFE Steel CorporationInventors: Kuniaki Okada, Munehiro Ishioka, Hitoshi Oishi, Tatsuya Shimada, Koichi Takashi, Yutaka Suzukawa, Yoshiki Fujii, Takamitsu Kusada
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Patent number: 7646452Abstract: A production method for a display panel according to the present invention is production method for a display panel 100 including a display panel 101 and a plurality of microlenses 107 provided on a light-incident side of the display panel 101, including: (a) a step of providing a display panel having a plurality of pixels in a matrix arrangement, wherein each of the plurality of pixels has a plurality of picture elements, including a first picture element 104B transmitting first color light and a second picture element 104R (104G) transmitting second color light which is different from the first color light; (b) a step of forming a photocurable material layer 105 on one of a pair of principal faces, being opposite to each other, of the display panel; (c) a step of exposing the photocurable material layer to light via the display panel, wherein the photocurable material layer is at least partially cured with light which has been transmitted through at least the first picture element; and (d) a step of removinType: GrantFiled: December 8, 2004Date of Patent: January 12, 2010Assignee: Sharp Kabushiki KaishaInventors: Hiroshi Nakanishi, Kuniaki Okada
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Publication number: 20090115939Abstract: A process for producing a liquid crystal display panel with microlens, including: the step of preparing a liquid crystal display panel; forming a resin layer of uncured photo-curing resin, on a surface of a first transparent substrate of the liquid crystal display panel; irradiating a plurality of pixels with light having a property of curing the resin layer with varying incident angle, and partially exposing the resin layer by the light passed through a first sub-pixel; and following the exposure step, the step of development of removing an uncured portion of the resin layer; wherein the exposure step is performed such that the cured portion has a shape of cylindrical microlens, and maximum thickness of the cured portion becomes equal to the thickness of the resin layer.Type: ApplicationFiled: July 7, 2006Publication date: May 7, 2009Applicant: Sharp Kabushiki KaishaInventors: Kazuya Ikuta, Kuniaki Okada
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Publication number: 20080239427Abstract: A hologram recording and reconstructing apparatus includes a rotating mirror, a rectangular aperture and a medium drive unit, records interference fringes of a reference beam and a signal beam in a hologram recording medium and reconstructs the hologram recorded in the hologram recording medium. The rotating mirror changes the angle of incidence of the reference beam incident on the hologram recording medium such that multiple data is recorded in the same recording region of the hologram recording medium. The rectangular aperture blocks a reconstructed beam from a hologram adjacent to the hologram to be reconstructed. The medium drive unit drives the hologram recording medium such that the angle of incidence of the signal beam and the reference beam incident on the hologram recording medium is changed.Type: ApplicationFiled: March 27, 2008Publication date: October 2, 2008Applicant: Sharp Kabushiki KaishaInventors: Kuniaki Okada, Yukiko Nagasaka