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).

  • Publication number: 20120074297
    Abstract: A photosensor array includes plural photosensor pixels. Each of the photosensor pixels includes a lower electrode, an amorphous silicon film, an n-type amorphous silicon film, and an upper electrode. The photosensor array includes plural scanning lines connected to the upper electrodes, plural read lines connected to the lower electrodes, a scanning circuit that is connected to the plural scanning lines, and sequentially supplies a selection scanning signal of a first voltage to the respective scanning lines, a first unit that inputs a second voltage higher than the first voltage to the plural read lines in a blanking period of one horizontal scanning period, and thereafter puts the plural read lines into the floating state, and a second unit that outputs a voltage change in each of the read lines within one horizontal scanning period as the sensor output voltage of the photosensor pixel.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 29, 2012
    Inventors: Takeshi YONEKURA, Toshio Miyazawa, Atsushi Hasegawa, Terunori Saitou, Kozo Yasuda
  • Publication number: 20120074406
    Abstract: A photosensor includes a photosensor array in which plural photosensor pixels are arranged in a matrix form and a backlight arranged below the photosensor array. The photosensor array includes a surface light-shielding film (for example, Al film), and the surface light-shielding film includes an incident hole through which light from an opposite side to the backlight is incident on the respective photosensor pixels, and a passage hole which is provided around the incident hole and irradiates the opposite side with irradiation light from the backlight.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 29, 2012
    Inventors: Terunori Saitou, Toshio Miyazawa, Atsushi Hasegawa, Takeshi Yonekura
  • Patent number: 8129724
    Abstract: A display device including a transparent substrate, and a plurality of thin film transistors formed on the transparent substrate, wherein each of the thin film transistors have a gate electrode, a source electrode and a drain electrode, a first semiconductor film, an insulation film, a second semiconductor film, and a third semiconductor film. The third semiconductor film is connected with the source electrode and the drain electrode by an ohmic contact, and the second semiconductor film is formed below the third semiconductor film and has a resistance higher than resistance of the third semiconductor film.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: March 6, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takuo Kaitoh, Toshio Miyazawa
  • Publication number: 20120050413
    Abstract: According to one embodiment, an inkjet head includes a nozzle plate, a piezoelectric member, a substrate, a frame member, and a wiring circuit. The nozzle plate has nozzles. The piezoelectric member has pressure chambers associated with the nozzles, sidewalls configured to pressurize the pressure chambers, and electrode wiring lines that are connected to electrodes provided on the respective sidewalls and alternately provided on one of both end sides of each of the pressure chambers which is different from the end side of respective adjacent pressure chambers. Further, the piezoelectric member applies a drive pulse voltage to the sidewalls from the electrodes to pressurize the pressure chambers. The piezoelectric member is bonded to the substrate. The frame member is bonded to the substrate and the nozzle plate to surround the piezoelectric member. The wiring circuit is provided on the substrate and has the electrode wiring lines.
    Type: Application
    Filed: August 29, 2011
    Publication date: March 1, 2012
    Applicant: Toshiba Tec Kabushiki Kaisha
    Inventor: Toshio MIYAZAWA
  • Patent number: 8124974
    Abstract: A display device is provided in which at least first and second thin film transistors are formed on a substrate, including a gate electrode formed on a semiconductor layer with a gate insulating film in between. The semiconductor layer is divided into individual regions for each film transistor, and is provided with a common region and LDD regions between a channel region and a drain region, as well as between the channel region and a source region. The gate electrode is formed as an integrated gate electrode for the first and second thin film transistors that faces the common region, the channel region and the LDD regions of the first thin film transistor and the channel region and the LDD regions of the second thin film transistor.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: February 28, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takeshi Noda, Toshio Miyazawa, Takuo Kaitoh, Takumi Shigaki
  • Patent number: 8124975
    Abstract: Provided is a display device capable of suppressing generation of optical leakage current as well as increase in capacitance in a case where a plurality of thin film transistors (TFTs) including a gate electrode film on a light source side are formed in series. Relative areas of opposing regions between a semiconductor film and the gate electrode film with respect to channel regions are different in at least a part of the plurality of TFTs, to thereby provide a flat panel display having a structure for suppressing increase in capacitance while suppressing generation of optical leakage current.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: February 28, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takeshi Noda, Toshio Miyazawa, Takuo Kaitoh, Hiroyuki Abe
  • Patent number: 8125683
    Abstract: An image processing apparatus includes a preview generating unit configured to generate, based on image data, a preview image that is expected to be output; an attribute extracting unit configured to extract an attribute of at least one portion in the image data; a display unit configured to display the preview image; a position-information obtaining unit configured to obtain position information indicative of a position of a specified portion in the preview image; and a processing unit configured to perform, on the image data, a process according to an attribute that corresponds to the position.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: February 28, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshio Miyazawa, Tetsuya Sakayori, Iwao Saeki, Yoshinaga Kato, Bin Lu, Yoshifumi Sakuramata, Junichi Takami, Yu Sekiguchi
  • Publication number: 20120026529
    Abstract: A finished-image generating unit generates a finished image showing a result of a process performed on a target image according to various function setting items. A finished-image display unit, when the target image extends to a plurality of pages, forms the finished image in a stack, and displays the stacked finished image on a display unit with a page structure image that shows an overall page structure of the stacked finished image. A page moving unit, when one of the pages constituting the page structure image is specified via an operating unit, executes a page moving from a page currently displayed on the display unit to the specified page.
    Type: Application
    Filed: October 11, 2011
    Publication date: February 2, 2012
    Inventors: Yoshifumi SAKURAMATA, Junichi Takami, Tetsuya Sakayori, Iwao Saeki, Yoshinaga Kato, Bin Lu, Toshio Miyazawa, Yu Sekiguchi
  • Patent number: 8102357
    Abstract: An inverter includes an input inverter having a high-resistance load and a first transistor and an output buffer including second and third transistors coupled in series. A power supply voltage is provided to satisfy an inequality VDD1>VDD2+Vth where VDD1 is the power supply voltage of the input inverter, VDD2 is the power supply voltage of the output buffer, and Vth is the threshold voltage of the transistors. Use of the high-resistance load allows an output waveform to rise and fall quickly, as well as reduces current consumption.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: January 24, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hisayoshi Kajiwara, Norio Mamba, Toshio Miyazawa, Masahiro Maki
  • Patent number: 8097927
    Abstract: The present invention provides an image display unit integrated with a photo-sensor, comprising a photo-sensing element with high sensitivity and low noise and a polycrystalline silicon TFT prepared at the same time on an insulating substrate using planer process. After a first electrode 11 and a second electrode 12 of the photo-sensing element are made of polycrystalline silicon film, a light receiving layer (photoelectric conversion layer) 13 of the photo-sensing element is prepared by amorphous silicon film on upper layer. In this case, a polycrystalline silicon TFT is prepared at the same time.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: January 17, 2012
    Assignee: Hitachi Displays, Ltd.
    Inventors: Mitsuharu Tai, Toshio Miyazawa
  • Patent number: 8068251
    Abstract: A finished-image generating unit generates a finished image showing a result of a process performed on a target image according to various function setting items. A finished-image display unit, when the target image extends to a plurality of pages, forms the finished image in a stack, and displays the stacked finished image on a display unit with a page structure image that shows an overall page structure of the stacked finished image. A page moving unit, when one of the pages constituting the page structure image is specified via an operating unit, executes a page moving from a page currently displayed on the display unit to the specified page.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: November 29, 2011
    Assignee: Ricoh Company, Limited
    Inventors: Yoshifumi Sakuramata, Junichi Takami, Tetsuya Sakayori, Iwao Saeki, Yoshinaga Kato, Bin Lu, Toshio Miyazawa, Yu Sekiguchi
  • Patent number: 8064026
    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: June 17, 2010
    Date of Patent: November 22, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Takahiro Ochiai, Takayuki Nakao, Toshio Miyazawa, Masahiro Maki, Tohru Sasaki
  • Patent number: 8058654
    Abstract: Provided is a display device including a p-type thin film transistor formed on a substrate, in which the p-type thin film transistor includes: a gate electrode; a drain electrode; a source electrode; an insulating film; a semiconductor layer formed on a top surface of the gate electrode through the insulating film; and diffusion layers of p-type impurities formed at each of an interface between the drain electrode and the semiconductor layer and an interface between the source electrode and the semiconductor layer, the drain electrode and the source electrode being formed so as to be opposed to each other with a clearance formed therebetween on a top surface of the semiconductor layer.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: November 15, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hidekazu Miyake, Eiji Oue, Takuo Kaitoh, Toshio Miyazawa
  • Patent number: 8059081
    Abstract: In the display device which is used in a miniaturized portable equipment, when a drive circuit is also connected on the same substrate as pixels, an input signal of low voltage has a level thereof shifted even when the threshold value is large or fluctuated. The display device includes pixel electrodes, switching elements which supply video signals to the pixel electrodes, and a drive circuit which supplies the video signals to the switching elements on the same substrate, wherein the drive circuit includes a level shift circuit, the level shift circuit includes a transistor. In a state that the transistor assumes an ON state, when an input signal is inputted to a source terminal and the input signal is at a low voltage level, a drain terminal assumes a low voltage level. Further, even when the input signal is at a high voltage level equal to or lower than a threshold value, the drain terminal outputs a voltage equal to or more than the threshold value as a high level voltage.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: November 15, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Kozo Yasuda, Katsumi Matsumoto, Toshio Miyazawa
  • Patent number: 8054264
    Abstract: The present invention provides a display device which can achieve the high breakdown voltage proof property, the enhancement of reliability or the expansion of the designing/process tolerance of transistors by the improvement of a circuit. A display device includes a plurality of pixels and a drive circuit which drives the plurality of pixels.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: November 8, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Toshio Miyazawa, Kazutaka Goto, Atsushi Hasegawa
  • Patent number: 8049702
    Abstract: A display device which is used in a miniaturized portable information device can exhibit the low power consumption even when a display is not changed over for a long period in a state that a battery or the like is used as a power source. The display device can maintain a high numerical aperture by suppressing the number of parts even when a memory element is provided to a pixel. In a liquid crystal display device, a pixel exhibits the low power consumption by including a memory element and thus preventing the transmission of a video signal. By making use of a charge held in a pixel electrode of a liquid crystal display panel, a signal for AC driving is formed in the inside of a pixel thus performing AC driving to perform a display without deteriorating liquid crystal even when the video signal is not rewritten. The liquid crystal display device can realize the memory element with the simple constitution without sacrificing a numeral aperture.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: November 1, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Toshio Miyazawa, Katsumi Matsumoto, Kozo Yasuda
  • Patent number: 8049255
    Abstract: A semiconductor device includes an insulating substrate and a TFT element disposed on the substrate. The TFT element includes a gate electrode, a gate insulating film, a semiconductor layer, and a source electrode and a drain electrode arranged in that order on the insulating substrate. The semiconductor layer includes an active layer composed of polycrystalline semiconductor and a contact layer segment interposed between the active layer and the source electrode and another contact layer segment interposed between the active layer and the drain electrode. The source and drain electrodes each have a first face facing the opposite face of the active layer from the interface with the gate insulating layer and a second face facing an etched side face of the active layer. Each contact layer segment is disposed between the active layer and each of the first and second faces of the source or drain electrode.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: November 1, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Takeshi Sakai, Toshio Miyazawa, Takuo Kaitoh, Hidekazu Miyake
  • Publication number: 20110242471
    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 13, 2011
    Publication date: October 6, 2011
    Inventors: Takahiro Ochiai, Takayuki Nakao, Toshio Miyazawa, Masahiro Maki, Tohru Sasaki
  • Publication number: 20110216214
    Abstract: The present invention provides a photosensor device including: a photodiode array in which photodiodes are arranged in an array shape; scanning lines which are coupled to first electrodes of the photodiodes in respective lines of the photodiode array; read lines which are coupled to second electrodes of the photodiodes in respective columns of the photodiode array; a scanning circuit which is coupled to the scanning lines and sequentially supplies a selected scanning signal to the respective scanning lines in each horizontal scanning period; and a signal processing circuit which is coupled to the read lines and loads each voltage fluctuation of the read lines in one horizontal scanning period as signal voltage when reading a signal, wherein each of the photodiodes is made of amorphous silicon or microcrystal silicon, and forward bias voltage is applied to each of the photodiodes when reading a signal.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 8, 2011
    Inventors: Kozo Yasuda, Toshio Miyazawa
  • Publication number: 20110204012
    Abstract: The invention can be used by being mounted on a shelf plate of an article display rack, prevents the shelf plate from being distorted due to a weight of the articles, prevents a distortion of an article support member, and prevents a forward feeding function of the articles from being deteriorated. In an article display and take-out unit with rollers used by being mounted on a shelf plate of an article display rack, the article display and take-out unit is provided with an article support member in which the rollers that support the articles vertically to a moving direction of the articles are rotatably installed in parallel, a rigid plate for preventing a distortion of the article support member caused by a weight of the articles, a first attachment that holds the rigid plate and the article support member and integrates them together, and a second attachment that holds at least the rigid plate at a desired height position.
    Type: Application
    Filed: December 2, 2010
    Publication date: August 25, 2011
    Applicant: SEKISUI PLASTICS CO., LTD.
    Inventors: Tatsuya EGUCHI, Toshio MIYAZAWA, Hiroyuki ONO