Patents by Inventor Naohiro Nishioka
Naohiro Nishioka 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: 7083861Abstract: An EL element comprising a light transmitting substrate, a light transmitting electrode formed on the substrate, a light emitting layer containing a positive ion absorber, a dielectric layer and a back electrode. Further, an EL element of the present invention contains a positive ion absorber in the dielectric layer. An EL element in accordance with an embodiment comprises a light emitting layer formed of a resin, a phosphor and a positive ion absorber, the positive ion absorber being 1-400 parts by weight to a 100 parts of the resin in the light emitting layer. An EL element in another embodiment comprises a dielectric layer formed of a resin, a high dielectric constant inorganic filler and a positive ion absorber, the positive ion absorber being 0.5-50 to a 100 parts of a total amounts of the resin and the filler.Type: GrantFiled: June 29, 2001Date of Patent: August 1, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Tanabe, Yosuke Chikahisa, Naohiro Nishioka
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Patent number: 6835112Abstract: An electroluminescent lamp (EL lamp) is formed by stacking a light-transmitting electrode-layer, an adhesive synthetic resin layer, a luminescent layer formed of the synthetic resin layer with phosphor particles fixed uniformly, a dielectric layer and a back electrode-layer on a transparent substrate sequentially. By this structure, a uniform EL lamp having improved brightness can be produced. A method for manufacturing the EL lamp includes following steps for fixing the phosphor particles in the synthetic resin layer uniformly. (1) sinking the phosphor particles in the synthetic resin layer by heating and pressing, after spraying the phosphor particles. (2) blowing the phosphor particles to the synthetic resin layer with heated air. As a result, the phosphor particles are uniformly fixed in the synthetic resin layer having uniform thickness.Type: GrantFiled: March 12, 2002Date of Patent: December 28, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Tanabe, Akito Kawasumi, Shinji Okuma, Yosuke Chikahisa, Naohiro Nishioka
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Patent number: 6831411Abstract: An electroluminescent lamp (EL lamp) is formed by stacking a light-transmitting electrode-layer, an adhesive synthetic resin layer, a luminescent layer formed of the synthetic resin layer with phosphor particles fixed uniformly, a dielectric layer and a back electrode-layer on a transparent substrate sequentially. By this structure, a uniform EL lamp having improved brightness can be produced. A method for manufacturing the EL lamp includes following steps for fixing the phosphor particles in the synthetic resin layer uniformly. (1) sinking the phosphor particles in the synthetic resin layer by heating and pressing, after spraying the phosphor particles. (2) blowing the phosphor particles to the synthetic resin layer with heated air. As a result, the phosphor particles are uniformly fixed in the synthetic resin layer having uniform thickness.Type: GrantFiled: August 6, 2003Date of Patent: December 14, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Tanabe, Akito Kawasumi, Shinji Okuma, Yosuke Chikahisa, Naohiro Nishioka
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Patent number: 6741028Abstract: An EL element comprising: a light transmitting substrate; a light transmitting electrode layer formed on the substrate; a light emitting layer containing a positive ion exchanger; a dielectric layer; a back electrode layer; and a dielectric insulation layer disposed between the light transmitting electrode layer and the light emitting layer. The dielectric insulation layer is formed of a synthetic resin that is insoluble with a synthetic resin binder forming the light emitting layer. The present invention provides an EL element having an improved illuminating performance, where an occurrence of a dark spot is suppressed, in addition to a suppression of an occurrence of a black spot.Type: GrantFiled: November 7, 2001Date of Patent: May 25, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Tanabe, Yosuke Chikahisa, Naohiro Nishioka
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Publication number: 20040027064Abstract: An electroluminescent lamp (EL lamp) is formed by stacking a light-transmitting electrode layer, an adhesive synthetic resin layer, a luminescent layer formed of the synthetic resin layer with phosphor particles fixed uniformly, a dielectric layer and a back electrode-layer on a transparent substrate sequentially. By this structure, a uniform EL lamp having improved brightness can be produced. A method for manufacturing the EL lamp includes following steps for fixing the phosphor particles in the synthetic resin layer uniformly. (1) sinking the phosphor particles in the synthetic resin layer by heating and pressing, after spraying the phosphor particles. (2) blowing the phosphor particles to the synthetic resin layer with heated air. As a result, the phosphor particles are uniformly fixed in the synthetic resin layer having uniform thickness.Type: ApplicationFiled: August 6, 2003Publication date: February 12, 2004Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Koji Tanabe, Akito Kawasumi, Shinji Okuma, Yosuke Chikahisa, Naohiro Nishioka
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Patent number: 6479930Abstract: A dispersion-type electroluminescence element composed of a plurality of light-transmitting electrode layers 12A, 12B and a plurality of luminescence layers 13A, 13B of dielectric resin having a high permittivity dispersed with fluorescent powder stacked one layer after the other over the whole region, or in a certain specific region, of one surface of a light-transmitting insulation film 1; and a back electrode layer 14 provided on the last layer of the luminescence layers formed by a printing process. The electroluminescence element is capable of producing a multiple number of luminescence colors, yet the cost is low.Type: GrantFiled: July 8, 1999Date of Patent: November 12, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Tanabe, Heiji Ikoma, Naohiro Nishioka, Yosuke Chikahisa
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Publication number: 20020145383Abstract: An electroluminescent lamp (EL lamp) is formed by stacking a light-transmitting electrode-layer, an adhesive synthetic resin layer, a luminescent layer formed of the synthetic resin layer with phosphor particles fixed uniformly, a dielectric layer and a back electrode-layer on a transparent substrate sequentially. By this structure, a uniform EL lamp having improved brightness can be produced. A method for manufacturing the EL lamp includes following steps for fixing the phosphor particles in the synthetic resin layer uniformly. (1) sinking the phosphor particles in the synthetic resin layer by heating and pressing, after spraying the phosphor particles. (2) blowing the phosphor particles to the synthetic resin layer with heated air. As a result, the phosphor particles are uniformly fixed in the synthetic resin layer having uniform thickness.Type: ApplicationFiled: March 12, 2002Publication date: October 10, 2002Inventors: Koji Tanabe, Akito Kawasumi, Shinji Okuma, Yosuke Chikahisa, Naohiro Nishioka
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Publication number: 20020079836Abstract: An EL element comprising: a light transmitting substrate; a light transmitting electrode layer formed on the substrate; a light emitting layer containing a positive ion exchanger; a dielectric layer; a back electrode layer; and a dielectric insulation layer disposed between the light transmitting electrode layer and the light emitting layer. The dielectric insulation layer is formed of a synthetic resin that is insoluble with a synthetic resin binder forming the light emitting layer. The present invention provides an EL element having an improved illuminating performance, where an occurrence of a dark spot is suppressed, in addition to a suppression of an occurrence of a black spot.Type: ApplicationFiled: November 7, 2001Publication date: June 27, 2002Inventors: Koji Tanabe, Yosuke Chikahisa, Naohiro Nishioka
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Publication number: 20020031688Abstract: An EL element comprising a light transmitting substrate, a light transmitting electrode formed on the substrate, a light emitting layer containing a positive ion absorber, a dielectric layer and a back electrode. Further, an EL element of the present invention contains a positive ion absorber in the dielectric layer. An EL element in accordance with an embodiment comprises a light emitting layer formed of a resin, a phosphor and a positive ion absorber, the positive ion absorber being 1-400 parts by weight to a 100 parts of the resin in the light emitting layer. An EL element in another embodiment comprises a dielectric layer formed of a resin, a high dielectric constant inorganic filler and a positive ion absorber, the positive ion absorber being 0.5-50 to a 100 parts of a total amounts of the resin and the filler.Type: ApplicationFiled: June 29, 2001Publication date: March 14, 2002Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Koji Tanabe, Yosuke Chikahisa, Naohiro Nishioka
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Patent number: 6252356Abstract: A set of a transparent electrode layer and a luminescent layer in which phosphor particles are dispersed are formed on a transparent resin film, and this set is formed layer by layer to create more than one luminescent layer. One or more luminescent layers are divided into multiple luminescent color regions. Or, the transparent electrode layer is electrically separated into two or more regions. This configuration enables the display of multiple patterns in multiple luminescent colors using one dispersed EL lamp. Accordingly, the multicolor EL lamp, which is aesthetically appealing as well as good visibility, can be provided for a display unit of a range of electronic equipment and backlight for LCDs.Type: GrantFiled: October 28, 1999Date of Patent: June 26, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Tanabe, Naohiro Nishioka, Yosuke Chikahisa
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Patent number: 5461775Abstract: A flexible printed circuit board is constituted with a first insulation film covering a first insulating resist layer, a second insulation film covering a second insulating resist layer and a printed circuit formed between the first insulating resist layer and the second insulating resist layer, and a terminal of an electronic component is disposed on the printed circuit, and the second insulation film is pressed and heated.Type: GrantFiled: April 19, 1994Date of Patent: October 31, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kouji Tanabe, Naohiro Nishioka
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Patent number: 5354392Abstract: A method for electrically connecting an upper wiring with a lower wiring consists of the steps of arranging the upper wiring mixed with thermo-softening material on an upper insulating sheet, arranging the lower wiring mixed with thermo-softening material on a lower insulating sheet, putting the upper insulating sheet on the lower insulating sheet to bring the upper wiring into contact with the lower wiring, and providing ultrasonic vibration to the upper and lower wirings and the upper insulating sheet while pushing the upper insulating sheet toward the lower insulating sheet. In these steps, the upper and lower wirings and the upper insulating sheet are heated and melted because friction heat is generated by the ultrasonic vibration. Thereafter, the upper insulating sheet is pushed into the upper and lower wirings while pushing these wirings aside and is boded with the lower insulating sheet. Also, the upper wiring is bonded with the lower wiring so that these wirings are electrically connected.Type: GrantFiled: January 13, 1993Date of Patent: October 11, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kouichi Santo, Naohiro Nishioka, Kenji Otomo, Kouji Tanabe, Futoshi Matsui
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Patent number: 5283947Abstract: Anisotropic conductive material is employed instead of solder for connecting between the terminal of a component and a printed circuit board. In addition to the printed circuit board, a printed circuit sheet is provided and the terminal of the component is sandwiched between both anisotropic materials on the printed circuit board and beneath the printed circuit sheet. From both outside surfaces of the printed circuit board and the sheet, heat and pressure are simultaneously applied to the terminal part (i.e. thermocompression bonding).Type: GrantFiled: February 10, 1993Date of Patent: February 8, 1994Assignee: Matsushita Electric Industrial Co., Inc.Inventors: Kouichi Santo, Kouji Tanabe, Naohiro Nishioka, Kenji Ootomo, Yoshihito Okazaki