Patents by Inventor Norifumi Egami
Norifumi Egami 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: 8203611Abstract: An imaging apparatus includes an electron emission array having electron sources arranged in matrix form, a photoelectric conversion film opposed to the electron emission array, and a control and drive circuit configured to select one or more horizontal scan lines in a given video signal output period and to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film, wherein the control and drive circuit is further configured to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film in any one or more blanking periods excluding both a blanking period immediately following the given video signal output period and a blanking period immediately preceding a next video signal output period in which the one or more horizontal scan lines will be selected next time.Type: GrantFiled: May 20, 2008Date of Patent: June 19, 2012Assignees: Nippon Hoso Kyokai, Hamamatsu Photonics K.K., Futaba Corporation, Pioneer CorporationInventors: Yuki Honda, Masakazu Namba, Yoshiyuki Hirano, Saburo Okazaki, Norifumi Egami, Toshihisa Watabe, Yoshiro Takiguchi, Akira Kobayashi, Shigeo Itoh, Masateru Taniguchi, Kazuhito Nakamura, Kenta Miya, Yoshiyuki Okuda, Kazuto Sakemura
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Patent number: 8203112Abstract: A device includes an electron emission source array including a plurality of electron emission sources, a photoelectric conversion film disposed to face the electron emission source array, and an intermediate electrode provided between the electron emission source array and the photoelectric conversion film, and an intermediate electrode current detector that applies a positive potential, relative to a potential of the electron emission source array, to the intermediate electrode and detects a current flowing in the intermediate electrode.Type: GrantFiled: July 16, 2009Date of Patent: June 19, 2012Assignees: Pioneer Corporation, Nippon Hoso Kyokai, Hamamatsu Photonics K.K, Futaba CorporationInventors: Yoshiyuki Okuda, Masakazu Nanba, Norifumi Egami, Akira Kobayashi, Hideyuki Suzuki, Sigeo Itoh, Masateru Taniguchi
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Patent number: 8044596Abstract: Electron-emissive drive units of electron-emissive elements capable of being arranged with a smaller pitch. FET and emitter array units exist in matrix element areas partitioned by a control wiring and data wiring. An exemplary unit is composed of four emitter arrays. The control wiring and data wiring are driven by first and second drive circuits, respectively. Corresponding arrays between units are connected by selection wiring and driven by a third drive circuit. The third drive circuit drives each unit of data wiring every time the drive circuit sequentially drives the four units of control wiring, and the emitter array drive circuit drives each emitter array selection wiring every time the drive circuit sequentially drives the three units of data wiring. Electrons can be emitted in units of arrays smaller than the unit.Type: GrantFiled: October 15, 2008Date of Patent: October 25, 2011Assignees: Futaba Corporation, NHK Science & Technical Research LaboratoriesInventors: Masateru Taniguchi, Takahiro Niiyama, Shigeo Itoh, Kazuhito Nakamura, Kenta Miya, Masakazu Namba, Yuki Honda, Toshihisa Watabe, Norifumi Egami
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Patent number: 7834308Abstract: An imaging apparatus includes an electron emission array having electron sources arranged in matrix form and having a plurality of horizontal scan lines, a photoelectric conversion film opposed to the electron emission array, and a control and drive circuit configured to select one or more of the horizontal scan lines in a given video signal output period and to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film to produce a video signal, wherein the control and drive circuit is configured to cause the electron sources included in unselected one or more horizontal scan lines not selected in the given video signal output period to emit electrons toward the photoelectric conversion film in a blanking period immediately preceding the given video signal output period.Type: GrantFiled: May 20, 2008Date of Patent: November 16, 2010Assignees: Nippon Hoso Kyokai, Hamamatsu Photonics K.K., Futaba Corporation, Pioneer CorporationInventors: Masakazu Namba, Yuki Honda, Yoshiyuki Hirano, Saburo Okazaki, Norifumi Egami, Toshihisa Watabe, Yoshiro Takiguchi, Akira Kobayashi, Shigeo Itoh, Masateru Taniguchi, Kazuhito Nakamura, Kenta Miya, Yoshiyuki Okuda, Nobuyasu Negishi
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Patent number: 7723664Abstract: An imaging apparatus includes an electron emission array having electron sources arranged in matrix form and having a plurality of horizontal scan lines, a photoelectric conversion film opposed to the electron emission array, and a control and drive circuit configured to select one or more of the horizontal scan lines in a given video signal output period and to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film to produce a video signal, wherein the control and drive circuit is configured to control electron emission of the electron emission array in a blanking period in response to a signal level of the video signal produced in the given video signal output period.Type: GrantFiled: May 20, 2008Date of Patent: May 25, 2010Assignees: Nippon Hoso Kyokai, Hamamatsu Photonics K.K., Futaba Corporation, Pioneer CorporationInventors: Yuki Honda, Masakazu Namba, Yoshiyuki Hirano, Saburo Okazaki, Norifumi Egami, Toshihisa Watabe, Yoshiro Takiguchi, Akira Kobayashi, Shigeo Itoh, Masateru Taniguchi, Kazuhito Nakamura, Kenta Miya, Takahiro Niiyama, Yoshiyuki Okuda
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Publication number: 20100025568Abstract: A device includes an electron emission source array including a plurality of electron emission sources, a photoelectric conversion film disposed to face the electron emission source array, and an intermediate electrode provided between the electron emission source array and the photoelectric conversion film, and an intermediate electrode current detector that applies a positive potential, relative to a potential of the electron emission source array, to the intermediate electrode and detects a current flowing in the intermediate electrode.Type: ApplicationFiled: July 16, 2009Publication date: February 4, 2010Applicants: Pioneer Corporation, Nippon Hoso Kyokai, HAMAMATSU PHOTONICS K.K, Futaba CorporationInventors: Yoshiyuki Okuda, Masakazu Nanba, Norifumi Egami, Akira Kobayashi, Hideyuki Suzuki, Sigeo Itoh, Masateru Taniguchi
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Publication number: 20090096393Abstract: Electron-emissive drive units of electron-emissive elements capable of being arranged with a smaller pitch. FET and emitter array units exist in matrix element areas partitioned by a control wiring and data wiring. An exemplary unit is composed of four emitter arrays. The control wiring and data wiring are driven by first and second drive circuits, respectively. Corresponding arrays between units are connected by selection wiring and driven by a third drive circuit. The third drive circuit drives each unit of data wiring every time the drive circuit sequentially drives the four units of control wiring, and the emitter array drive circuit drives each emitter array selection wiring every time the drive circuit sequentially drives the three units of data wiring. Electrons can be emitted in units of arrays smaller than the unit.Type: ApplicationFiled: October 15, 2008Publication date: April 16, 2009Inventors: Masateru Taniguchi, Takahiro Niiyama, Shigeo Itoh, Kazuhito Nakamura, Masakazu Namba, Yuki Honda, Kenta Miya, Toshihisa Watabe, Norifumi Egami
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Publication number: 20080291308Abstract: An imaging apparatus includes an electron emission array having electron sources arranged in matrix form and having a plurality of horizontal scan lines, a photoelectric conversion film opposed to the electron emission array, and a control and drive circuit configured to select one or more of the horizontal scan lines in a given video signal output period and to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film to produce a video signal, wherein the control and drive circuit is configured to control electron emission of the electron emission array in a blanking period in response to a signal level of the video signal produced in the given video signal output period.Type: ApplicationFiled: May 20, 2008Publication date: November 27, 2008Applicants: Nippon Hoso Kyokai, Hamamatsu Photonics K.K., Futaba Corporation, Pioneer CorporationInventors: Yuki HONDA, Masakazu Namba, Yoshiyuki Hirano, Saburo Okazaki, Norifumi Egami, Toshihisa Watabe, Yoshiro Takiguchi, Akira Kobayashi, Shigeo Itoh, Masateru Taniguchi, Kazuhito Nakamura, Kenta Miya, Takahiro Niiyama, Yoshiyuki Okuda
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Publication number: 20080290254Abstract: An imaging apparatus includes an electron emission array having electron sources arranged in matrix form and having a plurality of horizontal scan lines, a photoelectric conversion film opposed to the electron emission array, and a control and drive circuit configured to select one or more of the horizontal scan lines in a given video signal output period and to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film to produce a video signal, wherein the control and drive circuit is configured to cause the electron sources included in unselected one or more horizontal scan lines not selected in the given video signal output period to emit electrons toward the photoelectric conversion film in a blanking period immediately preceding the given video signal output period.Type: ApplicationFiled: May 20, 2008Publication date: November 27, 2008Applicants: Nippon Hoso Kyokai, Hamamatsu Photonics K.K., Futaba Corporation, PIONEER CORPORATIONInventors: Masakazu NAMBA, Yuki Honda, Yoshiyuki Hirano, Saburo Okazaki, Norifumi Egami, Toshihisa Watabe, Yoshiro Takiguchi, Akira Kobayashi, Shigeo Itoh, Masateru Taniguchi, Kazuhito Nakamura, Kenta Miya, Yoshiyuki Okuda, Nobuyasu Negishi
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Publication number: 20080291307Abstract: An imaging apparatus includes an electron emission array having electron sources arranged in matrix form, a photoelectric conversion film opposed to the electron emission array, and a control and drive circuit configured to select one or more horizontal scan lines in a given video signal output period and to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film, wherein the control and drive circuit is further configured to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film in any one or more blanking periods excluding both a blanking period immediately following the given video signal output period and a blanking period immediately preceding a next video signal output period in which the one or more horizontal scan lines will be selected next time.Type: ApplicationFiled: May 20, 2008Publication date: November 27, 2008Applicants: Nippon Hoso Kyokai, Hamamatsu Photonics K.K., Futaba Corporation, Pioneer CorporationInventors: Yuki Honda, Masakazu Namba, Yoshiyuki Hirano, Saburo Okazaki, Norifumi Egami, Toshihisa Watabe, Yoshiro Takiguchi, Akira Kobayashi, Shigeo Itoh, Masateru Taniguchi, Kazuhito Nakamura, Kenta Miya, Yoshiyuki Okuda, Kazuto Sakemura
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Patent number: 5488386Abstract: A photoconductive target having a transparent electrode layer and a photoconductive layer on a transparent substrate is disposed opposite to a group of integrated electron beam emitters having gate electrodes. A number of the electron emitters are activated to apply electron beams to the photoconductive target and the activated ones of the electron beam emitters are temporally changed over by an electron emitter selector circuit and a gate selector circuit. Signal charge generated and stored in the photoconductive layer is read. A time-series electric signal corresponding to a spatial distribution of the incident light is generated. A thin imaging apparatus suitable for a larger area is thus provided.Type: GrantFiled: December 2, 1993Date of Patent: January 30, 1996Assignee: Hitachi, Ltd. & Nippon Hoso KyokaiInventors: Toshio Yamagishi, Masakazu Nanba, Norifumi Egami, Kenkichi Tanioka, Mitsuhiro Kurashige, Kazutaka Tsuji, Yoshiyuki Kaneko, Tatsuo Makishima, Kazuyuki Nagatsuma, Tetsuya Ohshima, Yasushi Nakano
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Patent number: 5107172Abstract: A charged-particle beam tube having an envelope of a dielectric material and a pattern yoke formed on the inner surface of the envelope. The pattern yoke has a pair of horizonal deflection electrodes and a pair of vertical deflection electrodes arranged alternately. The horizontal deflection electrodes have a greater circumferential width than the vertical deflection electrodes. The horizontal and vertical deflection electrodes are supplied with different bias voltages.Type: GrantFiled: May 2, 1989Date of Patent: April 21, 1992Assignees: Hitachi, Ltd., Nippon Hoso KyokaiInventors: Kentaro Oku, Masakazu Fukushima, Mitsuhiro Kurashige, Norifumi Egami, Toshio Yamagishi