Patents by Inventor Kenji Ogawa
Kenji Ogawa 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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Patent number: 8330367Abstract: A plasma display panel has a first substrate, plural pairs of display electrodes, a second substrate, and plural data electrodes. Each pair of the display electrodes is made up of a scanning electrode and a sustain electrode which are arranged parallel to each other on the first substrate. The second substrate is disposed opposite to the first substrate. A discharge space is formed between the first substrate and second substrate. The data electrodes are arranged in a direction perpendicular to the display electrodes on the second substrate. The data electrode is wider in peripheral portion of the second substrate than in a central portion of the second substrate.Type: GrantFiled: February 22, 2012Date of Patent: December 11, 2012Assignee: Panasonic CorporationInventors: Tomohiro Murakoso, Kenji Ogawa, Toru Ando, Kentaro Ueda, Yohei Koshio, Ryuichi Murai
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Publication number: 20120285083Abstract: Provided is a process and an apparatus for producing at low cost gas hydrate pellets having an excellent storability. A gas hydrate generated from a raw-material gas and raw-material water is dewatered and simultaneously molded into pellets with compression-molding means under conditions suitable for generating the gas hydrate while the gas hydrate is generated from the raw-material gas and the raw-material water that exist among particles of the gas hydrate.Type: ApplicationFiled: July 25, 2012Publication date: November 15, 2012Applicant: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.Inventors: Toru Iwasaki, Masahiro Takahashi, Takashi Arai, Shinji Takahashi, Kouhei Takamoto, Kenji Ogawa, Masafumi Aoba
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Patent number: 8303293Abstract: Provided is a process and an apparatus for producing at low cost gas hydrate pellets having an excellent storability. A gas hydrate generated from a raw-material gas and raw-material water is dewatered and simultaneously molded into pellets with compression-molding means under conditions suitable for generating the gas hydrate while the gas hydrate is generated from the raw-material gas and the raw-material water that exist among particles of the gas hydrate.Type: GrantFiled: October 3, 2007Date of Patent: November 6, 2012Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.Inventors: Toru Iwasaki, Masahiro Takahashi, Takashi Arai, Shinji Takahashi, Kouhei Takamoto, Kenji Ogawa, Masafumi Aoba
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Patent number: 8232983Abstract: In the method for driving a plasma display panel and the plasma display device, the scan electrodes of the plasma display panel are divided into two scan electrode groups, the address period of subfields is divided into two address periods corresponding to the two scan electrode groups, and at least in one address period, the scan electrodes belonging to the scan electrode group provided with scan pulses are sequentially provided with scan pulses shifting from second voltage higher than scan pulse voltage to scan pulse voltage and shifting again to second voltage, and the scan electrodes belonging to the scan electrode group not provided with scan pulses are provided with either third voltage higher than scan pulse voltage or fourth voltage higher than second voltage and third voltage, and with third voltage at least while scan pulse voltage is applied to adjacent scan electrodes.Type: GrantFiled: March 27, 2008Date of Patent: July 31, 2012Assignee: Panasonic CorporationInventors: Kenji Ogawa, Keiji Akamatsu, Yasuhiro Arai
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Patent number: 8212746Abstract: In a driving method of a panel, one field period is formed by arranging a plurality of subfields that have an initializing period for causing initializing discharge in a discharge cell, an address period for selectively causing address discharge in the discharge cell, and a sustain period for causing as many sustain discharges as the number corresponding to luminance weight in the discharge cell. One field period is formed by arranging a plurality of subfield groups having a plurality of subfields whose luminance weights monotonically increase. A holding period when discharge is not caused is disposed before the head subfield belonging to at least one subfield group of the plurality of subfield groups. In the initializing period of the head subfield belonging to at least one subfield group, an initializing operation of causing initializing discharge is performed in the discharge cell where the sustain discharge has been performed in the sustain period of the immediately preceding subfield.Type: GrantFiled: April 10, 2008Date of Patent: July 3, 2012Assignee: Panasonic CorporationInventors: Keiji Akamatsu, Minoru Takeda, Kenji Ogawa, Hiroshi Ibaraki
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Patent number: 8212745Abstract: In a driving method of a panel, one field period is formed by arranging a plurality of subfields that have an address period for selectively causing address discharge in a discharge cell, and a sustain period for causing as many sustain discharges as the number corresponding to luminance weight in the discharge cell. One field period is formed by arranging a plurality of subfield groups having a plurality of subfields whose luminance weights monotonically increase. In the discharge cell for causing address discharge in a certain subfield other than the head subfield in each subfield group, address discharge is caused even in the head subfield.Type: GrantFiled: April 10, 2008Date of Patent: July 3, 2012Assignee: Panasonic CorporationInventors: Minoru Takeda, Kenji Ogawa, Keiji Akamatsu
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Patent number: 8212477Abstract: A plasma display panel has a first substrate, plural pairs of display electrodes, a second substrate, and plural data electrodes. Each pair of the display electrodes is made up of a scanning electrode and a sustain electrode which are arranged parallel to each other on the first substrate. The second substrate is disposed opposite to the first substrate. A discharge space is formed between the first substrate and second substrate. The data electrodes are arranged in a direction perpendicular to the display electrodes on the second substrate. The data electrode is wider in peripheral portion of the second substrate than in a central portion of the second substrate.Type: GrantFiled: April 12, 2006Date of Patent: July 3, 2012Assignee: Panasonic CorporationInventors: Tomohiro Murakoso, Kenji Ogawa, Toru Ando, Kentaro Ueda, Yohei Koshio, Ryuichi Murai
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Publication number: 20120165553Abstract: [Problem to be Solved] An immunostimulant highly safe and administrable for a long period of time as well as a pharmaceutical composition containing the immunostimulant as an active ingredient and drink or food products for immunostimulation are developed and provided. [Solution] An immunostimulant containing a compound represented by the following general formula (I) or a pharmaceutically acceptable salt thereof as an active ingredient is provided. R1 is a hydrogen atom or a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, R2 to R5 are independently a hydrogen atom, or a substituted or unsubstituted lower alkyl or lower acyl group, X is —(CH2)2—, —(CH2)3—, —(CH2)4—, —CO—CH2—, —CO—(CH2)2—, —CO—(CH2)3—, —CH2—CO—CH2—, —CO—O—CH2—, —CO—O—(CH2)2—, —O—CO—CH2—, —O—CO—(CH2)2—, —CH2—O—CH2—, —CH2—O—(CH2)2—, —O—CH2—, —O—(CH2)2—, —O—(CH2)3—, —NHY—CO—CH2—, —NHYCO—(CH2)2—, —CO—NHY—CH2— or —CO—NHY—(CH2)2—, Y herein is a hydrogen atom or a lower alkyl group.Type: ApplicationFiled: December 12, 2011Publication date: June 28, 2012Applicant: RIKENInventors: Kenji Ogawa, Takeshi Nakano
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Patent number: 8207913Abstract: A plasma display panel; a scan electrode drive circuit for generating a gently decreasing downward inclined waveform voltage in an initializing period, a gently increasing first inclined waveform voltage, and a second inclined waveform voltage having a steeper gradient than the first inclined waveform voltage and decreasing immediately after the increasing waveform voltage reaches a predetermined potential in the last part of the sustain period. The lowest voltage in the downward inclined waveform voltage is switched at a first voltage, a second voltage higher than the first voltage and a third voltage higher than the second voltage to generate a downward inclined waveform voltage. The lowest voltage is switched according to the detected temperature to generate the downward inclined waveform voltage.Type: GrantFiled: April 23, 2008Date of Patent: June 26, 2012Assignee: Panasonic CorporationInventors: Hiroshi Ibaraki, Minoru Takeda, Keiji Akamatsu, Kenji Ogawa, Nobuhiko Nakamura
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Publication number: 20120152933Abstract: To reduce the air exhausted to outside a main body after cooling a heat generating component from being taken in again from an intake port. The flow of cooling wind cooled the heat generating component is discharged from an exhaust port 21 at other than a first peripheral wall 19 with the flow bent inside the main body. When rectified inside the main body and discharged from the exhaust port 21, the cooling wind grows to a flow speed of a certain extent to become an exhaust air that a flowing direction is clearly defined, so that it is less likely to be taken in again from the intake port 20, it is less likely to be subjected to the influence of obstacles of the exhaust port, use can be made in a kitchen cabinet of the intake and exhaust air at the back side, and it is satisfactory and is less likely to be damaged without involving sense of unpleasantness by the exhaust air to the user.Type: ApplicationFiled: March 14, 2011Publication date: June 21, 2012Applicant: PANASONIC CORPORATIONInventors: Eiji Matsui, Akira Kataoka, Takehiko Shigeoka, Takaaki Kusaka, Kenji Ogawa
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Publication number: 20120146974Abstract: A plasma display panel has a first substrate, plural pairs of display electrodes, a second substrate, and plural data electrodes. Each pair of the display electrodes is made up of a scanning electrode and a sustain electrode which are arranged parallel to each other on the first substrate. The second substrate is disposed opposite to the first substrate. A discharge space is formed between the first substrate and second substrate. The data electrodes are arranged in a direction perpendicular to the display electrodes on the second substrate. The data electrode is wider in peripheral portion of the second substrate than in a central portion of the second substrate.Type: ApplicationFiled: February 22, 2012Publication date: June 14, 2012Applicant: Panasonic CorporationInventors: Tomohiro MURAKOSO, Kenji Ogawa, Toru Ando, Kentaro Ueda, Yohei Koshio, Ryuichi Murai
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Publication number: 20120112972Abstract: Disclosed is an antenna device that improves the antenna gain and reduces the correlation for a MIMO antenna. Said antenna device is provided with a first housing (101) and a second housing (102). In a folding handheld terminal wherein the first housing (101) and the second housing (102) are rotatably connected by a hinge (202), the first housing (101) is provided with a first power-supply unit (107) and the second housing (102) is provided with a second power-supply unit (108). An antenna element (201) is provided inside the first housing (101) near the hinge (202). One end of the antenna element is open, and the first power-supply unit (107) and second power-supply unit (108) supply power through the other end of the antenna.Type: ApplicationFiled: July 15, 2010Publication date: May 10, 2012Applicant: PANASONIC CORPORATIONInventor: Kenji Ogawa
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Publication number: 20120075283Abstract: In a driving method for a plasma display panel, in the initializing period in at least one of a plurality of subfields, selective initializing operation is performed that selectively causes initializing discharge only in a discharge cell having undergone address discharge in an immediately preceding address period. The selective initializing operation includes the step of applying first voltage to the sustain electrode and applying an up-ramp waveform voltage to the scan electrode, the step of applying a first down-ramp waveform voltage to the scan electrode and then applying a positive rectangular voltage to it, and the step of applying second voltage higher than the first voltage to the sustain electrode and applying a second down-ramp waveform voltage to the scan electrode.Type: ApplicationFiled: June 7, 2010Publication date: March 29, 2012Applicant: Panasonic CorporationInventors: Yutaka Yoshihama, Kenji Ogawa, Takateru Sawada, Toshiyuki Maeda, Keiji Akamatsu
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Publication number: 20120050253Abstract: An unnecessary discharge caused in the discharge cells in an initializing operation is prevented. This reduces the luminance of black level in a display image and stabilizes the address discharge at the same time, thus enhancing the image display quality. A plasma display panel that has a plurality of discharge cells having data electrodes and display electrode pairs, each formed of a scan electrode and a sustain electrode, is driven for gradation display such that a plurality of subfields is set in one field and each of the subfields has an initializing period, an address period, and a sustain period. For the above purpose, in the driving method for the plasma display panel, the following operations are performed. In the address period of a predetermined subfield, after the application of a scan pulse to all the scan electrodes is completed, a ramp voltage gently falling from a first voltage is applied to the sustain electrodes.Type: ApplicationFiled: May 13, 2010Publication date: March 1, 2012Applicant: PANASONIC CORPORATIONInventors: Yuichi Sakai, Kenji Ogawa, Yutaka Yoshihama, Keiji Akamatsu
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Publication number: 20120026142Abstract: The luminance of black level in an image displayed on a plasma display panel is reduced to enhance the contrast and image display quality. For this purpose, in an initializing period, one of a forced initializing waveform, a selective initializing waveform, and a non-initializing waveform is applied to scan electrodes. Further, one field is formed of a special initializing subfield where the forced initializing waveform and the non-initializing waveform are selectively generated, and a plurality of selective initializing subfields where only the selective initializing waveform is generated. The number of forced initializing waveforms applied to one scan electrode is one in one field group. The non-initializing waveform is applied to the scan electrodes on both sides of the scan electrode applied with the forced initializing waveform in a special initializing subfield, in at least two special initializing subfields, i.e.Type: ApplicationFiled: April 2, 2010Publication date: February 2, 2012Applicant: Panasonic CorporationInventors: Yutaka Yoshihama, Kenji Ogawa
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Patent number: 8096798Abstract: A molding machine for production of gas hydrate pellets under a high pressure in gas hydrate forming conditions, which is inexpensive through minimizing of the use of expensive mechanical seal. The molding machine comprises two forming rolls each fitted to a rotary shaft whose both ends are supported by bearings; a drive unit for rotating the forming rolls; a screw transfer unit for supplying powder to the forming rolls; and a high-pressure vessel, wherein the bearings, the rotary shaft and the forming rolls are all disposed in the high-pressure vessel.Type: GrantFiled: March 28, 2008Date of Patent: January 17, 2012Assignees: Mitsui Engineering & Shipbuilding Co., Ltd., The Chugoku Electric Power Co., Inc.Inventors: Kenji Watanabe, Kiyoaki Suganoya, Takahiro Yoshida, Kenji Ogawa, Shigeru Nanbara, Shinji Imai
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Patent number: 8089426Abstract: A plurality of subfields of a field period includes a subfield for performing an every-cell initialization causing an initial discharge in every discharge cell in an initialization period, and includes a subfield for performing a selective initialization causing the initial discharge in a predetermined discharge cell in the initialization period. In a low-luminance subfield, the every-cell initialization is performed, and a low-luminance subfield is subsequently located (in the field period) to the subfield for the every-cell initialization. In a sustain period of the subfield for performing the every-cell initialization or a sustain period of the low-luminance subfield, a width of a first sustain pulse is set wider than a width of a second sustain pulse, and the width of the second sustain pulse is set wider than the width of a third sustain pulse and subsequent others.Type: GrantFiled: February 22, 2006Date of Patent: January 3, 2012Assignee: Panasonic CorporationInventors: Kenji Ogawa, Tomohiro Murakoso, Yoshiki Tsujita, Kenji Sasaki, Yohei Koshio
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Patent number: 8085222Abstract: A plasma display device and a driving method thereof are provided. The plasma display device has a panel having a plurality of discharge cells including a display electrode pair that is formed of a scan electrode and a sustain electrode, and a temperature detecting circuit for detecting the ambient temperature of the panel and outputting the detected temperature. In the driving method, an unusual charge erasing period when a rectangular waveform voltage is applied to the scan electrode is disposed between the initializing period and address period of at least one of a plurality of subfields, and the number of subfields having the unusual charge erasing period is controlled based on the detected temperature detected by the temperature detecting circuit.Type: GrantFiled: April 14, 2008Date of Patent: December 27, 2011Assignee: Panasonic CorporationInventors: Taku Okada, Minoru Takeda, Yohei Koshio, Shinichiro Hashimoto, Kenji Ogawa
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Patent number: 8031134Abstract: In the initializing period of each of sub-fields comprising one field, one of all-cell initializing operation and selective initializing operation is performed. The all-cell initializing operation causes initializing discharge in all the discharge cells for displaying an image. The selective initializing operation selectively causes initializing discharge only in the discharge cells subjected to sustaining discharge in the preceding sub-field. Provided in the all-cell initializing period is an abnormal charge erasing part in which application of a rectangular waveform voltage to the scan electrodes causes self-erasing discharge in the discharge cells having excessive wall voltage accumulated therein.Type: GrantFiled: May 13, 2005Date of Patent: October 4, 2011Assignee: Panasonic CorporationInventors: Kenji Ogawa, Shigeo Kigo, Minoru Takeda
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Publication number: 20110148724Abstract: Disclosed is an antenna device that achieves greater reduction in size and a wider bandwidth. The antenna device has a box-type antenna element (102) and a folded-back monopole element (107), which are connected. The device is grounded via a grounding terminal (103) at one apex of the box-type antenna element (102), and is also connected to an electricity supply unit (106) of a substrate (101) via a feed terminal (105) at the apex which forms a long side with the grounded apex. In addition, the length from the grounding point (104) of the box-type antenna element (102) to the tip of the monopole element (107) is set to one-quarter the wavelength of a first resonant frequency, and the length from the electricity supply unit (106) to the tip of the monopole element (107) is set to one-quarter the wavelength of a second resonant frequency.Type: ApplicationFiled: August 11, 2009Publication date: June 23, 2011Applicant: Panasonic CorporationInventor: Kenji Ogawa