Patents by Inventor Yosuke Chikahisa
Yosuke Chikahisa 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: 7108515Abstract: A wiring substrate to be used in a variety of electronic apparatuses, and an input device, such as an optically transparent touch panel, using the same wiring substrate, and a method of manufacturing the same input device are disclosed. The invention simplifies a construction of the wiring substrate, reduces the number of manufacturing steps of the substrate, and makes all the connectors of the substrate in a single-sheet structure. The electrical and mechanical connections of those connectors to other connecting means can be thus highly reliable. Plural wiring patterns 22, 23, 24 and 25, and connectors 22A, 23A, 24A and 25A are formed on a first principal surface of wiring substrate 20. Substrate 20 includes flexible bending section P—P, and when substrate 20 is bend along bending section P—P, some connectors such as 24A, 25A are placed on a second principal surface opposite to the first one, so that wiring substrate 20 is formed.Type: GrantFiled: January 24, 2005Date of Patent: September 19, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Tanabe, Shoji Fujii, Yosuke Chikahisa
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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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Publication number: 20050191872Abstract: A wiring substrate to be used in a variety of electronic apparatuses, and an input device, such as an optically transparent touch panel, using the same wiring substrate, and a method of manufacturing the same input device are disclosed. The invention simplifies a construction of the wiring substrate, reduces the number of manufacturing steps of the substrate, and makes all the connectors of the substrate in a single-sheet structure. The electrical and mechanical connections of those connectors to other connecting means can be thus highly reliable. Plural wiring patterns 22, 23, 24 and 25, and connectors 22A, 23A, 24A and 25A are formed on a first principal surface of wiring substrate 20. Substrate 20 includes flexible bending section P-P, and when substrate 20 is bend along bending section P-P, some connectors such as 24A, 25A are placed on a second principal surface opposite to the first one, so that wiring substrate 20 is formed.Type: ApplicationFiled: January 24, 2005Publication date: September 1, 2005Inventors: Koji Tanabe, Shoji Fujii, Yosuke Chikahisa
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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: 6541911Abstract: An EL lamp for emitting light in multiple color which includes a first light-permeable electrode layer formed at the back side of a transparent substrate, a first luminous material layer containing a first luminous material, an intermediate light-permeable electrode layer, a second luminous material layer containing a second luminous material, a back electrode, and at least two elements of (i) a first color material contained in the first luminous material layer, (ii) a second color material contained in the second luminous material layer, and (iii) luminous color converting layer containing a third color material, disposed between the first luminous material layer and second luminous material layer, and a color coat layer containing a fourth color material, disposed at the front surface side of the transparent substrate. The color material closer to the back electrode of the at least two elements has the color of longer wavelength than the remoter color material.Type: GrantFiled: February 4, 2000Date of Patent: April 1, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Tanabe, Yosuke Chikahisa
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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: 6010742Abstract: All of a transparent electrode layer 2, a light-emitting layer 3, a dielectric layer 4, a back-surface electrode 5, collecting electrodes 5a, 5b, and an insulating coat layer 6 are laminated with predetermined patterns by screen printing on a insulating transparent film 1. Conductive paste used for forming transparent electrode layer 2 comprises conductive powder of indium oxide which contains needle-like powder (A) and fine-grain powder (B) at a blending ratio of (A):(B)=100:0 to 20:80. A binder resin (D), being a photo-hardening or thermal-hardening resin, is mixed with the conductive powder (C) at a blending ratio of (C):(D)=45:55 to 95:5, thereby obtaining an excellent EL lighting element.Type: GrantFiled: October 31, 1997Date of Patent: January 4, 2000Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Tanabe, Yosuke Chikahisa, Heiji Ikoma
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Patent number: 5844362Abstract: All of a transparent electrode layer 2, a light-emitting layer 3, a dielectric layer 4, a back-surface electrode 5, collecting electrodes 5a, 5b, and an insulating coat layer 6 are laminated with predetermined patterns by screen printing on an insulating transparent film 1. Conductive paste used for forming transparent electrode layer 2 comprises conductive powder of indium oxide which contains needle-like powder (A) and fine-gain powder (B) at a blending ratio of (A):(B)=100:0 to 20:80. A binder resin (D), being a photo-hardening or thermal-hardening resin, is mixed with the conductive powder (C) at a blending ratio of (C):(D)=45:55 to 95:5, thereby obtaining an excellent EL lighting element.Type: GrantFiled: July 12, 1996Date of Patent: December 1, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Tanabe, Yosuke Chikahisa, Heiji Ikoma, Masahiro Ohara, Masaru Kuwahara
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Patent number: 5841230Abstract: On an upper surface of an insulating transparent film, a transparent electrode layer, a phosphor layer, a dielectric layer, a back-surface electrode, collecting electrode layers, and an insulating coat layer are successively accumulated in predetermined patterns by repeating screen printing operations. Meanwhile, a light-permeable reflection layer containing pearly pigment is formed on a lower surface of the insulating transparent film in a predetermined pattern by a printing operation. With this arrangement, it becomes possible to eliminate the color difference of the light-emitting surface of the EL lighting element between its turned-on and turned-off conditions.Type: GrantFiled: February 24, 1997Date of Patent: November 24, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Heiji Ikoma, Koji Tanabe, Yosuke Chikahisa