Patents by Inventor Toshio Miyazawa

Toshio Miyazawa 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: 7952095
    Abstract: In a display device of the present invention which forms thin film transistors on a substrate, the thin film transistor comprises: a silicon nitride film which is formed on the substrate in a state that the silicon nitride film covers a gate electrode; a silicon oxide film which is selectively formed on the silicon nitride film; a semiconductor layer which is formed at least on an upper surface of the silicon oxide film and includes a pseudo single crystal layer or a polycrystalline layer; and a drain electrode and a source electrode which are formed on an upper surface of the semiconductor layer by way of a contact layer, wherein either one of the pseudo single crystal layer and the poly-crystalline layer is formed by crystallizing the amorphous silicon layer, and a peripheral-side wall surface of the pseudo single crystal layer or the polycrystalline layer is contiguously constituted with a peripheral-side wall surface of the silicon oxide film below the pseudo single crystal layer or the polycrystalline la
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: May 31, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Eiji Oue, Takuo Kaitoh, Hidekazu Miyake, Toshio Miyazawa, Yuichiro Takashina
  • Patent number: 7952102
    Abstract: In a display device which forms thin film transistors on a substrate, the thin film transistor includes an n-type thin film transistor and a p-type thin film transistor, a gate electrode of one thin film transistor out of the n-type thin film transistor and the p-type thin film transistor forms a metal layer made of a material different from the gate electrode on a gate-insulation-film side thereof, and an LDD layer is formed over a semiconductor layer of at least one of the n-type thin film transistor and the p-type thin film transistor.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: May 31, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Eiji Oue, Toshio Miyazawa
  • Patent number: 7948461
    Abstract: The present invention provides an image display device having about the same numbers of gate lines and data lines as before and capable of reducing the power consumption of a static memory during rewriting of a display image. In the configuration of the image display device, the drain electrode of a first transistor 15 included in a pixel circuit is connected to an input for setting a storing state of the static memory, the drain electrode of a second transistor 18 is connected to an input for resetting a storing state of the static memory, the source electrode of the first transistor is connected to a data line, the gate electrode of the first transistor included in a row of pixel circuits arranged parallel to gate lines is connected to one gate line of the plurality of gate lines, and the gate electrode of the second transistor included in another row of pixel circuits arranged adjacent to the row of pixel circuits is connected to the one gate line.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: May 24, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hiroshi Kageyama, Katsumi Matsumoto, Toshio Miyazawa
  • Patent number: 7944439
    Abstract: A display device includes first and second voltage generation circuits each including a voltage circuit for outputting an internal voltage on the basis of a plurality of clocks, a sampling circuit for sampling an output signal from the voltage circuit, a monitoring circuit for comparing an output signal from the first sampling circuit with a predetermined voltage range and outputting a result, and a power supply generation circuit for generating a power supply voltage to be input to the voltage circuit on the basis of an output signal supplied from the monitoring circuit. The voltage circuit in the first voltage generation circuit is controlled on the basis of a level of the power supply voltage, and the voltage circuit in the second voltage generation circuit is controlled on the basis of periods of the clocks.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: May 17, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Norio Mamba, Yasuyuki Kudo, Toshio Miyazawa
  • Patent number: 7944529
    Abstract: A transflective liquid crystal display device with improved display quality in which the liquid initial alignment direction of the liquid crystal layer is in a direction perpendicular to the extending direction of a clearance between the counter electrode of a transmission portion and a counter electrode of a reflection portion or in a direction within a range of ±2° in the clockwise direction perpendicular to the extending direction of the clearance in a case where the liquid crystal layer comprises positive type liquid crystals, or the liquid crystal initial alignment direction of the liquid crystal layer is in a direction parallel with the extending direction of a clearance, or a direction within a range of ±2° in the clockwise direction relative to the extending direction of the clearance in a case where the liquid crystal layer comprises negative type liquid crystals.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: May 17, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Takahiro Ochiai, Toshio Miyazawa, Masahiro Maki, Tohru Sasaki, Masateru Morimoto
  • Publication number: 20110104361
    Abstract: The invention improves the unpleasant taste characteristic of potassium salts without affecting the original flavor of foods or drinks and increases the value of potassium salt as a salt substitute, in order to provide means and a salt composition for reducing sodium in foods and drinks. By adding one or more of the following: quinic acid or a quinic acid-containing composition, spilanthol or a spilanthol-containing plant extract or plant essential oil, or an Allium plant extract, to a potassium salt or a potassium salt-containing food or drink, the unpleasant tastes such as acrid taste and metallic taste characteristic of potassium salts are improved while the salt flavor and taste are augmented.
    Type: Application
    Filed: June 23, 2009
    Publication date: May 5, 2011
    Applicant: OGAWA & CO., LTD.
    Inventors: Toshio Miyazawa, Tsuyoshi Yamaguchi, Katsuyuki Matsumoto, Shuichi Muranishi
  • Patent number: 7924355
    Abstract: Three layers are formed on a TFT substrate SUB 100. The three layers include a first transparent electrode PSL1 131, a second transparent electrode CSL 127 and a third transparent electrode PSL2 132, all of which are laminated in parallel to the substrate surface. Two auxiliary capacitances to a liquid crystal capacitance are formed between the first transparent electrode PSL1 131 and the second transparent electrode CSL 127 and between the second transparent electrode CSL 127 and the third transparent electrode PSL2 132.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: April 12, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Mieko Matsumura, Toshio Miyazawa, Takeshi Sato, Yoshiaki Toyota
  • Patent number: 7889405
    Abstract: A finished-image generating unit generates a finished image showing a result of a process performed on a target image. A transparent-finished-image generating unit generates, when the target image extends to a plurality of pages, a transparent finished image by adjusting a transparency of a non-image portion of the finished image to a predetermined transparency. A transparent-finished-image display unit forms the transparent finished image in a stack, and displays the stacked transparent finished image on a display unit in such a manner that an image portion of the transparent finished image is seen through the non-image portion.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: February 15, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Junichi Takami, Tetsuya Sakayori, Iwao Saeki, Yoshinaga Kato, Yoshifumi Sakuramata, Bin Lu, Toshio Miyazawa, Yu Sekiguchi
  • Publication number: 20110032311
    Abstract: According to one embodiment, there is formed a sidewall that isolates pressure chambers and is provided with an oblique angle on its ends in the ink flow direction; an electrode provided on the sidewall and a wiring part are connected; a substrate and an piezoelectric material are adhered together using an adhesive; the piezoel ectric material is processed to form grooves therein; then, a metal film making an electrode and a wiring part is formed on the sidewall and substrate; then, a non-wiring part is formed on the substrate and the piezoelectric material by laser light as a first processing method; subsequently, a non-wiring part is formed on the adhesive portion by a second processing method different from the first method. Thus, widths of the electrode and the wiring connected to an actuator can be uniformized thereby to reduce the variation among voltages applied to the individual actuators.
    Type: Application
    Filed: August 2, 2010
    Publication date: February 10, 2011
    Applicant: Toshiba Tec Kabushiki Kaisha
    Inventor: Toshio Miyazawa
  • Publication number: 20110025961
    Abstract: A transflective liquid crystal display device with improved display quality in which the liquid initial alignment direction of the liquid crystal layer is in a direction perpendicular to the extending direction of a clearance between the counter electrode of a transmission portion and a counter electrode of a reflection portion or in a direction within a range of ±2° in the clockwise direction perpendicular to the extending direction of the clearance in a case where the liquid crystal layer comprises positive type liquid crystals, or the liquid crystal initial alignment direction of the liquid crystal layer is in a direction parallel with the extending direction of a clearance, or a direction within a range of ±2° in the clockwise direction relative to the extending direction of the clearance in a case where the liquid crystal layer comprises negative type liquid crystals.
    Type: Application
    Filed: October 7, 2010
    Publication date: February 3, 2011
    Inventors: Takahiro Ochiai, Toshio Miyazawa, Masahiro Maki, Tohru Sasaki, Masateru Morimoto
  • Publication number: 20110024763
    Abstract: A display device which has thin film transistors, wherein a semiconductor layer includes a first layer, second layers and third layers, the first layer has a channel region, the second layers are an impurity layer, the third layers are a low-concentration impurity layer, the second layers have connection portions connected with an electrodes, the third layers are formed to annularly surround the second layers, a channel-region-side edge portion out of edge portions of the third layer is in contact with the first layer, the edge portions of the third layer but the channel-region-side edge portion are in contact with an interlayer insulation film, the second layers have a first region where the second layer overlaps with a gate electrode and a second region where the second layer does not overlap with the gate electrode, and the connection portion is in the second region.
    Type: Application
    Filed: July 28, 2010
    Publication date: February 3, 2011
    Inventors: Takeshi NODA, Toshio Miyazawa, Takuo Kaitoh, Daisuke Sonoda
  • Publication number: 20110006192
    Abstract: Each optical sensor element includes an upper electrode, a lower electrode, and a light dependent variable resistance element formed of amorphous silicon. Each optical sensor pixel includes: a capacitive element between the lower electrode and a reference voltage line; a first transistor inputting a first power source voltage to a second electrode, connecting a first electrode to the lower electrode, and inputting a second clock to a control electrode; a second transistor inputting a second power source voltage to a second electrode, and connecting a control electrode to the lower electrode; and a third transistor connecting a second electrode to a first electrode of the second transistor, connecting a first electrode to the output line, and inputting a first clock to a control electrode.
    Type: Application
    Filed: July 8, 2010
    Publication date: January 13, 2011
    Inventors: Toshio MIYAZAWA, Hideki Nakagawa, Kozo Yasuda
  • Publication number: 20110001894
    Abstract: A liquid crystal parallax barrier panel has the structure formed by stacking an electrode substrate, a liquid crystal layer and a sealing substrate in order. The electrode substrate includes a glass substrate, a first electrode which is branched in plural stages, a second electrode which is arranged on the same layer as the first electrode and is branched in plural stages, and an alignment film. Out of the first electrode and the second electrode, twig portions which include distal ends of branched portions of one electrode and twig portions which include distal ends of branched portions of another electrode are alternately arranged such that the twig portion which includes the distal end of the branched portion of one electrode enters between two twig portions which include the distal ends of branched portions of another electrode.
    Type: Application
    Filed: July 1, 2010
    Publication date: January 6, 2011
    Inventors: Yoshiharu OWAKU, Toshio MIYAZAWA, Hironori KONDO
  • Patent number: 7834964
    Abstract: A transflective liquid crystal display device with improved display quality in which the liquid initial alignment direction of the liquid crystal layer is in a direction perpendicular to the extending direction of a clearance between the counter electrode of a transmission portion and a counter electrode of a reflection portion or in a direction within a range of ±2° in the clockwise direction perpendicular to the extending direction of the clearance in a case where the liquid crystal layer comprises positive type liquid crystals, or the liquid crystal initial alignment direction of the liquid crystal layer is in a direction parallel with the extending direction of a clearance, or a direction within a range of ±2° in the clockwise direction relative to the extending direction of the clearance in a case where the liquid crystal layer comprises negative type liquid crystals.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: November 16, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Takahiro Ochiai, Toshio Miyazawa, Masahiro Maki, Tohru Sasaki, Masateru Morimoto
  • Patent number: 7826015
    Abstract: A liquid crystal display device having a liquid crystal display panel includes a first substrate, a second substrate, and liquid crystal interposed between the first and second substrates. The first substrate includes an active element, a first insulating film formed on the active element, a plurality of first electrodes disposed on the first insulating film, a second insulating film disposed on the first electrodes, and a pixel electrode disposed on the second insulating film. The pixel electrode is electrically coupled to the active element via a portion defining a contact hole formed in a portion defining a clearance between the plurality of first electrodes.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: November 2, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Takahiro Ochiai, Takayuki Nakao, Toshio Miyazawa, Masahiro Maki, Tohru Sasaki
  • Publication number: 20100253895
    Abstract: A liquid crystal display device having a liquid crystal display panel includes a first substrate, a second substrate, and liquid crystal interposed between the first and second substrates. The first substrate includes an active element, a first insulating film formed on the active element, a plurality of first electrodes disposed on the first insulating film, a second insulating film disposed on the first electrodes, and a pixel electrode disposed on the second insulating film. The pixel electrode is electrically coupled to the active element via a portion defining a contact hole formed in a portion defining a clearance between the plurality of first electrodes.
    Type: Application
    Filed: June 17, 2010
    Publication date: October 7, 2010
    Inventors: Takahiro Ochiai, Takayuki Nakao, Toshio Miyazawa, Masahiro Maki, Tohru Sasaki
  • Patent number: 7808466
    Abstract: The present invention provides an IPS-type transflective liquid crystal display device in which a contrast is not inverted between a transmissive portion and a reflective portion. The transflective liquid crystal display device includes a liquid crystal display panel having a pair of substrates and liquid crystal which is sandwiched between the pair of substrates, wherein the liquid crystal display panel includes the plurality of sub pixels each of which includes a transmissive portion and a reflective portion, each sub pixel of the plurality of sub pixels includes a pixel electrode which is formed on one substrate out of the pair of substrates and a counter electrode which is formed on the one substrate, and an electric field is generated between the pixel electrode and the counter electrode thus driving the liquid crystal.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: October 5, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Masateru Morimoto, Toshio Miyazawa, Shoichi Hirota
  • Publication number: 20100245739
    Abstract: The present invention provides a liquid crystal display device which can reduce the difference in brightness between an image obtained from a reflection region and an image obtained from a transmission region. The liquid crystal display device includes a pixel electrode and a counter electrode in each pixel region on a liquid-crystal-side surface of one substrate out of respective substrates which are arranged to face each other with liquid crystal therebetween. The pixel region includes a transmission region and a reflection region. A gap between the pixel electrode and the counter electrode in the reflection region is set larger than the gap between the pixel electrode and the counter electrode in the transmission region.
    Type: Application
    Filed: June 7, 2010
    Publication date: September 30, 2010
    Inventors: Atsushi Hasegawa, Toshio Miyazawa
  • Patent number: 7800575
    Abstract: The present invention provides a display device which includes a drive circuit having a CMOS shift register circuit constituted of a simple CMOS circuit. A drive circuit includes a shift register circuit, and the shift register circuit includes n(n?2) pieces of basic circuits which are connected vertically in multiple stages.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: September 21, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Takayuki Nakao, Hideo Sato, Masahiro Maki, Toshio Miyazawa
  • Publication number: 20100230675
    Abstract: A display device having a photosensor which exhibits excellent photoelectric conversion efficiency is provided. In a display device which forms photosensors on a substrate thereof, the photosensor is formed by sequentially stacking a gate electrode, a gate insulation film and a semiconductor layer in such an order or in an opposite order from a substrate side, and electrodes are connected to both sides of the semiconductor layer respectively, the semiconductor layer is formed of a stacked body consisting of a crystalline semiconductor layer and an amorphous semiconductor layer, and the crystalline semiconductor layer is arranged on the gate insulation film side.
    Type: Application
    Filed: February 9, 2010
    Publication date: September 16, 2010
    Inventors: Katsumi Matsumoto, Hideki Nakagawa, Yoshiharu Owaku, Terunori Saitou, Toshio Miyazawa, Takahiro Kamo, Takuo Kaitoh