Patents by Inventor Akira Otsuka

Akira Otsuka 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: 7948742
    Abstract: A planar display device whose display panel main body can be easily separated from a chassis member upon disposal without preparing large equipment and a special tool. In the planar display device wherein the PDP panel main body (1) and the chassis member (2) are adhered by a two-sided tape (3), a wire (4) is previously incorporated for separating the PDP panel main body (1) from the chassis member (2) by cutting and peeling the double-sided tape.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: May 24, 2011
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Nobuyoshi Kondo, Takashi Sasaki, Akira Otsuka
  • Publication number: 20110062193
    Abstract: A method of controlling a sliding nozzle device 10 and a plate 13 used therefor, even if operational conditions are changed, automatically optimizing sliding conditions of the device 10, increasing a life of the plate 13, and reducing a corrosion rate and a stroke length of the plate 13. When the device 10 is controlled, if an average cumulative sliding rate of the plate 13 is outside a control range, a sliding rate of the plate 13 is changed within a preset range, thereby automatically optimizing the sliding conditions of the device 10 even with an operational condition change. Also, 3% to 20% of average sliding rate can reduce the corrosion rate of the plate 13 and drastically increase the life of the plate 13.
    Type: Application
    Filed: March 27, 2009
    Publication date: March 17, 2011
    Applicant: Krosaki Harima Corporation
    Inventors: Shunji Sadano, Junya Yano, Hiroyuki Tofuku, Kenichi Harada, Akira Otsuka
  • Patent number: 7805653
    Abstract: An order-ensemble searching unit classifies a distribution of reception signals at each bit position of a modulation symbol, and searches an order ensemble of a parity check matrix that minimizes an SNR threshold value. A code generating unit generates a parity check matrix and a generation matrix, based on the order ensemble obtained as a search result.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: September 28, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shigeru Uchida, Akira Otsuka, Wataru Matsumoto
  • Publication number: 20100212889
    Abstract: Example methods and apparatus to measure fluid flow rates are disclosed. A disclosed example apparatus includes a circulator to selectively circulate a fluid in a flowline, a generator thermally coupled to the flowline at a first location and controllable to form a heat wave in the fluid, a sensor thermally coupled to the flowline at a second location to measure a first value representative of the heat wave, a phase detector to determine a second value representative of a wavelength of the heat wave based on the first value, a frequency adjuster to control the generator to form the heat wave in the fluid at a first frequency, the first frequency selected so that the second value is substantially equal to a distance between the first and second locations, and a flow rate determiner to determine a flow rate of the fluid based on the first frequency.
    Type: Application
    Filed: February 23, 2009
    Publication date: August 26, 2010
    Applicant: Schlumberger Technology Corporation
    Inventor: Akira Otsuka
  • Patent number: 7768188
    Abstract: An optical filter is provided on the output side of light from plural kinds of cells that output light with colors different from one another. In the optical filter, the penetrable rate of at least a portion of the wavelength band of light output from the cell with the color having highest luminescent intensity is set lower than that of the wavelength band of other kinds of cells. Consequently, the reflectance rate of outer light incident to a display can be reduced. Particularly, in a room environment using artificial lighting, the reflectance rate of outer light can be reduced in the wavelength band of light with relatively high luminescent intensity. Resultingly, bright room contrast can be improved by suppressing the reflection of outer light. Since the penetrable rate of the color with the highest luminescent intensity is reduced, reduction in brightness of the display can be kept to a minimum.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: August 3, 2010
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Takashi Sasaki, Akira Otsuka, Akihiro Takagi
  • Patent number: 7768978
    Abstract: In a VoIP system that employs the AMR coding system, by classifying packets by means of unequal error protection implemented during data coding based on the AMR coding system, and by transmitting packets through transport channels 26 corresponding to the required quality for the respective packets, an efficient and high-quality mobile communication system is obtained.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: August 3, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Keiko Numakura, Akira Otsuka
  • Publication number: 20100079056
    Abstract: A plasma display panel has a front substrate (3) and a back substrate (2) arranged opposed to each other through a discharge space (4). On the back substrate, a fluorescent layer (5) is formed. On the front substrate, display electrodes are formed extending in a horizontal direction, a discharge cell area is demarcated corresponding to the display electrodes, and a plurality of shielding films (13) extending in the horizontal direction are moreover formed at each position which is among the display electrodes and within the discharge cell area. When the distance between the shielding films and the fluorescent layer is set to be D, the width L of a shielding film and the distance S between the shielding films satisfy 0.58?L?D and D?S?1.73D. This reduces the reflectance ratio of outdoor daylight to improve lighted room contrast.
    Type: Application
    Filed: May 7, 2007
    Publication date: April 1, 2010
    Inventors: Akira Otsuka, Takashi Sasaki
  • Patent number: 7663574
    Abstract: A problem is to be solved in that there is to be provided a display device and a display method allowing two or more sorts of sustaining pulses to be employed by switching over the pulses depending on the state of display in such a manner as to achieve characteristics including high light emission efficiency/decrease in streaking and high luminance and the like. The display device is provided wherein one frame image contains a plurality of sub-frames, including: a detection section detecting a state of display: a sustaining pulse output section to select and output one out of two or more sorts of sustaining pulses for a display for each sub-frame depending on the state of display.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: February 16, 2010
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Akira Otsuka, Takashi Sasaki, Akihiro Takagi
  • Patent number: 7639212
    Abstract: A novel PDP device capable of reducing the peak current of a sustain discharge without the need to modify circuits has been disclosed.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: December 29, 2009
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Akira Otsuka, Takashi Sasaki, Akhiro Takagi
  • Patent number: 7609380
    Abstract: An apparatus for performing real-time analysis of a subterranean formation fluid includes a light source configured to transmit at least a sample signal through a sample of the subterranean formation fluid and a reference signal, at least one photodetector configured to continuously detect the sample and reference signals, and an electronics assembly configured to compensate for drift in the detected sample signal in real-time based on the value of the detected reference signal.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: October 27, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Stephane Vannuffelen, Takeaki Nakayama, Tsutomu Yamate, Toru Terabayashi, Akira Otsuka, Kentaro Indo
  • Publication number: 20090231235
    Abstract: In a plasma display module, the cost and size of a power supply circuit are reduced.
    Type: Application
    Filed: June 20, 2005
    Publication date: September 17, 2009
    Inventors: Akira Otsuka, Takashi Sasaki, Akihiro Takagi
  • Publication number: 20090231309
    Abstract: In a long-gap discharge using a trigger discharge in a display cell of a PDP having three electrodes (X, Y, A), a technology capable of stably generating the trigger discharge with low power consumption by using a float electrode is provided. In a dielectric layer of the PDP, a long gap is formed between first and second display electrodes, first and second float electrodes which are capacitive-coupled to the first and second display electrodes are formed, and a short gap is formed between the first and second float electrodes. A sustain pulse is applied to the first and second display electrodes, thereby generating a small trigger discharge in the short gap. Subsequently to this discharge, a main discharge at the long gap is generated. Electrodes and capacitances are structured so that the main discharge has an intensity equal to or smaller than one-fifth of an intensity of the trigger discharge.
    Type: Application
    Filed: December 2, 2005
    Publication date: September 17, 2009
    Inventors: Akira Otsuka, Takashi Sasaki, Akihiro Takagi
  • Publication number: 20090224648
    Abstract: A planar display device whose display panel main body can be easily separated from a chassis member upon disposal without preparing large equipment and a special tool. In the planar display device wherein the PDP panel main body (1) and the chassis member (2) are adhered by a two-sided tape (3), a wire (4) is previously incorporated for separating the PDP panel main body (1) from the chassis member (2) by cutting and peeling the double-sided tape.
    Type: Application
    Filed: July 11, 2005
    Publication date: September 10, 2009
    Inventors: Nobuyoshi Kondo, Takashi Sasaki, Akira Otsuka
  • Publication number: 20090209733
    Abstract: A therapeutic agent for rheumatoid arthritis, particularly a therapeutic agent for ameliorating an inflammatory symptom or bone deformity in rheumatoid arthritis, which comprises an antibody that binds to a hepatocyte growth factor receptor as an active ingredient.
    Type: Application
    Filed: March 20, 2007
    Publication date: August 20, 2009
    Applicant: Seikagaku Corporation
    Inventors: Akira Otsuka, Makoto Sakuma
  • Patent number: 7576712
    Abstract: The present invention provides a plasma display device including: a plurality of scan electrodes sequentially scanned to be impressed with a scan pulse; an address electrode that is impressed with an address pulse corresponding to the scan pulse, for selection of a display pixel; a scan driving circuit generating the scan pulse; and an address driving circuit generating the address pulse. The address pulse rises in n stages (n is an integer equal to or larger than 2), and a period in a period during which the address pulse rises from a lowest voltage to a highest voltage overlaps a scan pulse immediately prior to the scan pulse corresponding to the address pulse.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: August 18, 2009
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Akihiro Takagi, Takashi Sasaki, Akira Otsuka
  • Publication number: 20090160047
    Abstract: A downhole tool having at least one semiconductor device, including: a die; a bonding pad which is attached to the surface of the die; a bonding wire which is attached to the bonding pad; a bonding point which is formed on the bonding pad for connecting the bonding wire to the bonding pad; an encapsulating resin encapsulating the die and being provided with a cavity such that a connecting portion of the bonding point and the bonding pad is exposed out of the resin in the cavity; and a lid on the encapsulating resin to cover the cavity.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: AKIRA OTSUKA, SHOHACHI MIYAMAE, JIRO TAKEDA
  • Publication number: 20090079726
    Abstract: A plasma display driving method and apparatus that can reduce the occurrences of dropout, on a displayed image, caused by misaddress when the environment temperature becomes low. In the inventive plasma display, the environment temperature is determined, and during a charge adjustment interval, the ultimate voltage, which the drive waveform of a scan electrode voltage reaches at the end after continuously varying in the negative direction, is changed in accordance with the determined environment temperature in such a manner that if the environment temperature becomes lower, the ultimate voltage is directed in the positive direction.
    Type: Application
    Filed: June 20, 2005
    Publication date: March 26, 2009
    Inventors: Akihiro Takagi, Takashi Sasaki, Akira Otsuka
  • Publication number: 20090066609
    Abstract: A method and an apparatus for driving a plasma display in which supply of a driving waveform to the non-lighting display line of a plasma display screen is stopped while preventing level difference in luminance or instability of operational margin incident to stoppage of driving waveform supply. In the inventive plasma display, a sustain waveform is created and supplied to each display line of the plasma display, and supply of the sustain waveform is stopped for such a display line as no cell is lighted at all in a unit of sub-field thus quickening the clamp period of sustain waveform by using an inductance having an increased L value and shortening the sustain cycle.
    Type: Application
    Filed: July 6, 2005
    Publication date: March 12, 2009
    Inventors: Akihiro Takagi, Takashi Sasaki, Akira Otsuka, Tetsuya Sakamoto
  • Publication number: 20090027308
    Abstract: Provided is a method for driving plasma display panel capable of changing the quantity of emission in an erasure discharge. The method drives a plasma display panel including a scan electrode drive circuit (3) for driving scan electrodes (112), a sustain electrode drive circuit (2) for driving sustain electrodes (111), an address electrode drive circuit (4) for driving address electrodes (121), and a control circuit (5) for controlling the actions of the individual drive circuits. The individual drive circuits are driven for a reset period, in which one field is divided for actions into a plurality of sub-fields for adjusting the electric charges in cells, for an address period, in which cells to be issued are designated, for a sustain period, in which discharges are repeated with the scan electrodes and the sustain electrodes to cause the emissions of the cells, and for an erase period, in which the quantity of wall charges formed in the cell having emitted finally of the sustain period is reduced.
    Type: Application
    Filed: August 4, 2005
    Publication date: January 29, 2009
    Inventors: Takashi Sasaki, Akira Otsuka, Akihiro Takagi
  • Publication number: 20090029270
    Abstract: A projection exposure device which can perform high accurate alignment and separate exposures wherein the mask marks 20 overlap with the corresponding board marks 30 in exposure, the mask marks 20 are larger than the board marks 30 so as to shield the board marks 30 from the exposing light, and a diameter ØM of the circular mask mark 20 is larger than a diameter ØB of the circular board mark 30.
    Type: Application
    Filed: July 24, 2008
    Publication date: January 29, 2009
    Applicant: ADTEC ENGINEERING CO., LTD.
    Inventors: Akira OTSUKA, Wataru NAKAGAWA, Masaru MORIYA