Patents by Inventor Keizo Suzuki

Keizo Suzuki 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: 20090079672
    Abstract: There is provided a PDP, in which the deterioration in the address discharge timelag with age is suppressed, which is bright, has guaranteed life, can stably be driven, is of low power consumption, high definition, and high image quality. There is provided a pair of sustaining discharge electrodes on the front substrate extending in a row direction for forming a display line, a floating electrode not connected to an external electrode is arranged on the same substrate as the pair of sustaining discharge electrode so as not to pass through a center line extending in a column direction and dividing the discharge cell into two equal parts, thereby intensifying the local potential of an area of the MgO surface not influenced by the sputtering by the sustaining discharge in the address discharge, promoting the electron emission from this area, and suppressing the deterioration of the address discharge timelag.
    Type: Application
    Filed: July 18, 2008
    Publication date: March 26, 2009
    Inventors: Norihiro UEMURA, Shunichiro Nobuki, Shirun Ho, Keizo Suzuki, Masatoshi Shiiki
  • Publication number: 20080278417
    Abstract: A AC type plasma display apparatus has been disclosed, which satisfies various requirements such as the number of gradations that can be displayed, the display luminance, and the upper limit of power and, further, the efficiency of light emission and the luminance can be increased as much as possible and the display quality of which is not deteriorated. In the plasma display apparatus, a frame is composed of plural subfields, an image is displayed by causing a sustain discharge to occur in each subfield, the sustain discharge can be caused to occur by at least a first sustain waveform and a second sustain waveform different from the first sustain waveform, and the ratio of the first sustain waveform to the second sustain waveform changes, both waveforms being used to cause the sustain discharge to occur in each subfield.
    Type: Application
    Filed: July 17, 2008
    Publication date: November 13, 2008
    Applicant: HITACHI, LTD.
    Inventors: Takashi SASAKI, Yuichiro Kimura, Yasunobu Hashimoto, Keizo Suzuki, Kenichi Yamamoto
  • Patent number: 7450090
    Abstract: A plasma display panel and an imaging device realize a high luminous efficiency, a long lifetime and stable driving. The plasma display panel uses a discharge-gas mixture containing at least Xe, Ne and He. A Xe proportion of the discharge-gas mixture is in a range of from 2% to 20%, a He proportion of the discharge-gas mixture is in a range of from 15% to 50%, the He proportion is greater than the Xe proportion, and a total pressure of the discharge-gas mixture is in a range of from 400 Torr to 550 Torr. A width of a voltage pulse to be applied to an electrode serving as an address electrode is 2 ?s or less.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: November 11, 2008
    Assignees: Hitachi, Ltd., Fujitsu Hitachi Plasma Display, Ltd.
    Inventors: Norihiro Uemura, Keizo Suzuki, Hiroshi Kajiyama, Yusuke Yajima, Masayuki Shibata, Yoshimi Kawanami, Koji Ohira, Ikuo Ozaki
  • Publication number: 20080218439
    Abstract: A plasma display panel and an imaging device realize a high luminous efficiency, a long lifetime and stable driving. The plasma display panel uses a discharge-gas mixture containing at least Xe, Ne and He. A Xe proportion of the discharge-gas mixture is in a range of from 2% to 20%, a He proportion of the discharge-gas mixture is in a range of from 15% to 50%, the He proportion is greater than the Xe proportion, and a total pressure of the discharge-gas mixture is in a range of from 400 Torr to 550 Torr. A width of a voltage pulse to be applied to an electrode serving as an address electrode is 2 ?s or less.
    Type: Application
    Filed: May 15, 2008
    Publication date: September 11, 2008
    Inventors: Norihiro UEMURA, Keizo SUZUKI, Hiroshi KAJIYAMA, Yusule YAJIMA, Masayuki SHIBATA, Yoshimi KAWANAMI, Koji OHIRA, Ikuo OZAKI
  • Patent number: 7333722
    Abstract: In a disc playback apparatus in which a plurality of digital versatile discs (DVDs) are loaded in a disc changer, a key-image extracting unit causes menu screens recorded on the plurality of loaded DVDs to be decoded, and generates predetermined key-image data by reducing video data of the menu screens decoded by a video decoder. The key-image extracting unit stores the generated key-image data in a hard disk device. An index-screen generating unit reads the key-image data stored in the hard disk device to generate and display a predetermined index screen including key images produced using the key-image data. The disc playback apparatus allows a user to readily grasp the content of the DVDs loaded therein.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: February 19, 2008
    Assignee: Alpine Electronics, Inc.
    Inventors: Masanori Kushibe, Keizo Suzuki
  • Publication number: 20070229399
    Abstract: A plasma display device includes a plasma display panel provided with plural discharge cells each having discharge gas, a pair of sustain electrodes which generate sustain discharge, and a phosphor, and a driving circuit which applies a sustain pulse voltage between the pair of sustain electrodes for generating the sustain discharge. The sustain pulse voltage is formed of a first portion having a main portion of a first voltage Vp and a second portion succeeding the first portion in time and having a main portion of a second voltage Vs higher than the first voltage Vp, the sustain discharge is formed of a pre-discharge and a main discharge succeeding the pre-discharge in time, and the first voltage Vp is selected to satisfy Vpmin?Vp<Vs, where Vpmin is a minimum of the first voltage Vp which stabilizes the sustain discharge.
    Type: Application
    Filed: August 31, 2006
    Publication date: October 4, 2007
    Inventors: Kenichi Yamamoto, Keizo Suzuki
  • Patent number: 7239963
    Abstract: A vehicle navigation apparatus enabling a user to know whether a data item for display is the latest updated one or has old contents, thereby allowing him/her to confidently drive according to a guidance route provided by navigation. The vehicle navigation apparatus is adapted to update a database by receiving difference data. The navigation apparatus displays not only the data item for display but also freshness information on the data, based on the difference data and storage contents in the pre-update database. The freshness information may indicate whether the freshness of the data item for display is guaranteed or not, and may be displayed in a manner according to the freshness of the data item.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: July 3, 2007
    Assignee: Alpine Electronics, Inc.
    Inventor: Keizo Suzuki
  • Patent number: 7183711
    Abstract: A plasma display panel includes plural discharge cells and a barrier rib layer which defines the discharge cells. Each discharge cells has two opposing electrodes on front and rear substrates, respectively, for generating discharge therebetween, discharge gas and phosphor films. The barrier rib layer is fabricated as a sheet separate from the substrates, is provided with openings each forming a discharge space, and is sandwiched between the substrates. The following relationships are satisfied: 0.1?S2/S1?0.4; 100 Torr ×mm?pd?400 Torr×mm; and 0.2 mm?d, where S1 is an area of a projection of a space occupied by one discharge cell onto the front substrate, S2 is an area of a portion of the front substrate for projecting light from the discharge cell, p is a pressure of the discharge gas, and d is a distance between the electrodes.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: February 27, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuya Miyake, Keizo Suzuki, Masatoshi Shiiki, Tsuyoshi Fujita, Seiichi Tsuchida
  • Publication number: 20070035474
    Abstract: There is provided a plasma display device capable of high luminous efficacy and stable driving for displaying images at various image display load factors. The plasma display device performs the sustain discharge for a light-emission display, and is configured to apply a sustain pulse voltage between a sustain electrode pair in a respective one of the plural discharge cells to generate a sustain discharge in a respective one of the following operating modes selected based upon use of the plasma display device: (a) generating a pre-discharge and then a main discharge; (b) generating a main discharge without a pre-discharge preceding the main discharge; and (c) switching between the mode (a) and the mode (b). The sustain voltage waveforms are used which compensate for an increase in voltage drop due to an increase in discharge current when the image display load factor is excessively increased.
    Type: Application
    Filed: October 20, 2006
    Publication date: February 15, 2007
    Inventors: Kenichi Yamamoto, Keizo Suzuki, Masatoshi Shiiki, Kyoji Kariya, Tomokatsu Kishi, Tetsuya Sakamoto, Takashi Sasaki, Takayuki Shimizu
  • Publication number: 20070001602
    Abstract: A plasma display panel has plural discharge cells between two opposing first and second substrates. Each of the discharge cells includes at least one pair of electrodes for generating a discharge for display, a discharge gas and a phosphor film for emitting visible light by being excited by ultraviolet rays produced by the discharge of the discharge gas. Laminated members are dispersed in a plane within each of the discharge cells inside the first substrate from which visible light for display is emitted, and each of the laminated members includes a light absorption layer disposed on a side of the first substrate on which ambient light is incident and a light reflection layer disposed on a phosphor-film side of the laminated members. A visible-light-reflection layer is disposed on a surface of the phosphor film on a side thereof opposite from a space in which the discharge is generated.
    Type: Application
    Filed: August 23, 2005
    Publication date: January 4, 2007
    Inventors: Tatsuya Miyake, Keizo Suzuki, Masatoshi Shiiki, Choichiro Okazaki, Tsuyoshi Fujita, Seiichi Tsuchida
  • Patent number: 7145522
    Abstract: There is provided a plasma display device capable of high luminous efficacy and stable driving for displaying images at various image display load factors. The plasma display device performs the sustain discharge for a light-emission display, and is configured to apply a sustain pulse voltage between a sustain electrode pair in a respective one of the plural discharge cells to generate a sustain discharge in a respective one of the following operating modes selected based upon use of the plasma display device: (a) generating a pre-discharge and then a main discharge; (b) generating a main discharge without a pre-discharge preceding the main discharge; and (c) switching between the mode (a) and the mode (b). The sustain voltage waveforms are used which compensate for an increase in voltage drop due to an increase in discharge current when the image display load factor is excessively increased.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: December 5, 2006
    Assignees: Hitachi, Ltd., Fujitsu Hitachi Plasma Display Limited
    Inventors: Kenichi Yamamoto, Keizo Suzuki, Masatoshi Shiiki, Kyoji Kariya, Tomokatsu Kishi, Tetsuya Sakamoto, Takashi Sasaki, Takayuki Shimizu
  • Publication number: 20060192732
    Abstract: A plasma display panel and an imaging device realize a high luminous efficiency, a long lifetime and stable driving. The plasma display panel uses a discharge-gas mixture containing at least Xe, Ne and He. A Xe proportion of the discharge-gas mixture is in a range of from 2% to 20%, a He proportion of the discharge-gas mixture is in a range of from 15% to 50%, the He proportion is greater than the Xe proportion, and a total pressure of the discharge-gas mixture is in a range of from 400 Torr to 550 Torr. A width of a voltage pulse to be applied to an electrode serving as an address electrode is 2 ?s or less.
    Type: Application
    Filed: April 4, 2006
    Publication date: August 31, 2006
    Inventors: Norihiro Uemura, Keizo Suzuki, Hiroshi Kajiyama, Yusuke Yajima, Masayuki Shibata, Yoshimi Kawanami, Koji Ohira, Ikuo Ozaki
  • Patent number: 7088315
    Abstract: A plasma display device is realized which has a high set-luminous-efficacy (i.e. provides a high-brightness display image at a low power consumption) and a high light-room contrast. The luminous efficacy hs and the display discharge voltage Vs are increased by increasing the product pd in discharge, or increasing the Xe proportion aXe of the discharge. As a result the display-discharge region area ratio Ad and the display region reflectance ? can be reduced by reducing the display-electrode area Sse approximately in inverse proportion to Vs2, and thereby the set-luminous efficacy hs and the set luminance Bpons and the light-room contrast Cb are increased.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: August 8, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Keizo Suzuki, Shirun Ho, Masatoshi Shiiki, Tatsuya Miyake, Kenichi Yamamoto
  • Patent number: 7071901
    Abstract: A plasma display panel and an imaging device realize a high luminous efficiency, a long lifetime and stable driving. The plasma display panel uses a discharge-gas mixture containing at least Xe, Ne and He. A Xe proportion of the discharge-gas mixture is in a range of from 2% to 20%, a He proportion of the discharge-gas mixture is in a range of from 15% to 50%, the He proportion is greater than the Xe proportion, and a total pressure of the discharge-gas mixture is in a range of from 400 Torr to 550 Torr. A width of a voltage pulse to be applied to an electrode serving as an address electrode is 2 ?s or less.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: July 4, 2006
    Assignees: Hitachi, Ltd., Fujitsu Hitachi Plasma Display Ltd.
    Inventors: Norihiro Uemura, Keizo Suzuki, Hiroshi Kajiyama, Yusuke Yajima, Masayuki Shibata, Yoshimi Kawanami, Koji Ohira, Ikuo Ozaki
  • Publication number: 20060049757
    Abstract: A plasma display panel includes plural discharge cells and a barrier rib layer which defines the discharge cells. Each discharge cells has two opposing electrodes on front and rear substrates, respectively, for generating discharge therebetween, discharge gas and phosphor films. The barrier rib layer is fabricated as a sheet separate from the substrates, is provided with openings each forming a discharge space, and is sandwiched between the substrates. The following relationships are satisfied: 0.1?S2/S1?0.4; 100 Torr×mm?pd?400 Torr×mm; and 0.2 mm?d, where S1 is an area of a projection of a space occupied by one discharge cell onto the front substrate, S2 is an area of a portion of the front substrate for projecting light from the discharge cell, p is a pressure of the discharge gas, and d is a distance between the electrodes.
    Type: Application
    Filed: January 27, 2005
    Publication date: March 9, 2006
    Inventors: Tatsuya Miyake, Keizo Suzuki, Masatoshi Shiiki, Tsuyoshi Fujita, Seiichi Tsuchida
  • Patent number: 6969794
    Abstract: The data of the same musical pieces are stored in the same order in each of a plurality of music playback apparatuses. When one music playback apparatus is instructed to finish musical-piece playback, it generates musical-piece playback information indicating the playback order of the musical piece being played at that time, and sends the musical-piece playback information to a mobile telephone. The mobile telephone receives the musical-piece playback information and stores it in its internal memory. When the mobile telephone is moved to a position around another of the music playback apparatuses, the mobile telephone sends the musical-piece playback information to the other music playback apparatus. When the other music playback apparatus is instructed to start musical-piece playback, it selects the musical piece to be played back next, according to the musical-piece playback information sent from the mobile telephone, reads the data of the selected musical piece, and starts playing back the musical piece.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: November 29, 2005
    Assignee: Alpine Electronics, Inc.
    Inventor: Keizo Suzuki
  • Publication number: 20050236987
    Abstract: A plasma display panel has plurality discharge cells disposed between a pair of opposing first and second substrates. Each of the discharge cells includes at least: at least one pair of electrodes for generating a discharge for display; a discharge gas; and a phosphor film for emitting visible light by being excited by ultraviolet light produced by the discharge of the discharge gas. Laminated members are dispersed in a plane within each of the discharge cells inside the first substrate from which visible light for display is emitted. Each of the laminated members includes a light absorption layer disposed on a side of the first substrate on which ambient light is incident and a light reflection layer disposed on a phosphor-film side of each of the laminated members.
    Type: Application
    Filed: February 23, 2005
    Publication date: October 27, 2005
    Inventors: Choichiro Okazaki, Masatoshi Shiiki, Keizo Suzuki, Kenichi Yamamoto
  • Publication number: 20050212725
    Abstract: A AC type plasma display apparatus has been disclosed, which satisfies various requirements such as the number of gradations that can be displayed, the display luminance, and the upper limit of power and, further, the efficiency of light emission and the luminance can be increased as much as possible and the display quality of which is not deteriorated. In the plasma display apparatus, a frame is composed of plural subfields, an image is displayed by causing a sustain discharge to occur in each subfield, the sustain discharge can be caused to occur by at least a first sustain waveform and a second sustain waveform different from the first sustain waveform, and the ratio of the first sustain waveform to the second sustain waveform changes, both waveforms being used to cause the sustain discharge to occur in each subfield.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 29, 2005
    Applicants: FUJITSU LIMITED, FUJITSU HITACHI PLASMA DISPLAY LIMITED, HITACHI, LTD.
    Inventors: Takashi Sasaki, Yuichiro Kimura, Yasunobu Hashimoto, Keizo Suzuki, Kenichi Yamamoto
  • Patent number: 6907232
    Abstract: A receiver and a receiving system capable of obtaining content related information corresponding to a retrieval key are provided. When a retrieval instruction is performed by a user, a retrieval key setting section sets the artist name of a musical piece provided by a program being received as a retrieval key. A related information retrieval section obtains program content data added to distribution information of another program, and retrieves content related information (for example, information such as the scheduled date of the sale of a new musical piece) corresponding to the retrieval key set by the retrieval key setting section. When the content related information corresponding to the retrieval key is extracted, a display processing section creates image data for displaying the extracted content related information and displays the image data on a display section.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: June 14, 2005
    Assignee: Alpine Electronics, Inc.
    Inventors: Keizo Suzuki, Shigeru Sato
  • Publication number: 20050052362
    Abstract: A plasma display panel and an imaging device realize a high luminous efficiency, a long lifetime and stable driving. The plasma display panel uses a discharge-gas mixture containing at least Xe, Ne and He. A Xe proportion of the discharge-gas mixture is in a range of from 2% to 20%, a He proportion of the discharge-gas mixture is in a range of from 15% to 50%, the He proportion is greater than the Xe proportion, and a total pressure of the discharge-gas mixture is in a range of from 400 Torr to 550 Torr. A width of a voltage pulse to be applied to an electrode serving as an address electrode is 2 ?s or less.
    Type: Application
    Filed: October 12, 2004
    Publication date: March 10, 2005
    Inventors: Norihiro Uemura, Keizo Suzuki, Hiroshi Kajiyama, Yusuke Yajima, Masayuki Shibata, Yoshimi Kawanami, Koji Ohira, Ikuo Ozaki