Patents by Inventor Kouzou Fujino
Kouzou Fujino 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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Publication number: 20080285305Abstract: An LED module is mounted on a case frame by fitting three pins formed at a concave portion of the case frame, into holes in the LED module corresponding to the pins. A light-guide plate is fitted into the case frame formed integrally with a bottom cover in a descending direction. The light-guide plate is fixed by a hook provided for the case frame. A space between the light-guide plate and the LED module is prevented by pressing the light-guide plate to the LED module with a pressing spring. Since the light-guide plate is fitted into the case frame in the descending direction and a light scattering sheet is adhered to an outer end surface of the case frame in the descending direction, it is not necessary to reverse the worked product and so the number and time of working processes can be saved.Type: ApplicationFiled: January 29, 2008Publication date: November 20, 2008Applicant: Nippon Sheet Glass Company, LimitedInventors: Kouzou Fujino, Makoto Ikeda, Tomihisa Saitou
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Publication number: 20080123368Abstract: An LED module is mounted on a case frame by fitting three pins formed at a concave portion of the case frame, into holes in the LED module corresponding to the pins. A light-guide plate is fitted into the case frame formed integrally with a bottom cover in a descending direction. The light-guide plate is fixed by a hook provided for the case frame. A space between the light-guide plate and the LED module is prevented by pressing the light-guide plate to the LED module with a pressing spring. Since the light-guide plate is fitted into the case frame in the descending direction and a light scattering sheet is adhered to an outer end surface of the case frame in the descending direction, it is not necessary to reverse the worked product and so the number and time of working processes can be saved.Type: ApplicationFiled: January 31, 2008Publication date: May 29, 2008Applicant: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Kouzou Fujino, Makoto Ikeda, Tomihisa Saitou
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Publication number: 20070159806Abstract: An LED module is mounted on a case frame by fitting three pins formed at a concave portion of the case frame, into holes in the LED module corresponding to the pins. A light-guide plate is fitted into the case frame formed integrally with a bottom cover in a descending direction. The light-guide plate is fixed by a hook provided for the case frame. A space between the light-guide plate and the LED module is prevented by pressing the light-guide plate to the LED module with a pressing spring. Since the light-guide plate is fitted into the case frame in the descending direction and a light scattering sheet is adhered to an outer end surface of the case frame in the descending direction, it is not necessary to reverse the worked product and so the number and time of working processes can be saved.Type: ApplicationFiled: March 13, 2007Publication date: July 12, 2007Inventors: Kouzou Fujino, Makoto Ikeda, Tomihisa Saitou
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Patent number: 7224494Abstract: In an image reading apparatus using a contact image sensor, an area light source for reading an image from a film original is provided. The area light source has a light guide plate and an LED device in the center of a side surface on the shorter side of the plate. In the LED device, red-, green-, and blue-LED chips are mounted on the same package and red-, green-, and blue-light are switched and lit. A white bottom plate covers the bottom surface of the light guide plate and a white case frame covers the four side surfaces. A scattering sheet is adhered to the upper surface of the white case frame, that is, a light emitting surface. On the rear surface of the light guide plate, light scatterers are formed by screen printing so that a specific pattern is drawn by high-reflectance white ink.Type: GrantFiled: November 14, 2001Date of Patent: May 29, 2007Assignee: Nippon Sheet Glass Company, LimitedInventors: Tomihisa Saitou, Kouzou Fujino
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Patent number: 7048427Abstract: A planar light source device comprises a light guide member having light scattering members for scattering light on the rear face of it, and a first LED module and a second LED module arranged on an end face of the light guide member. The light guide member has an area having no light scattering members in the vicinity of the LED modules, and has a corner-cut portion obtained by cutting a corner at an inclination angle ? in the light outputting direction of the first LED module. The first LED module is provided in the middle of the short side face of the light guide member, and the second LED module is provided on the corner-cut portion of the light guide member. The light from the first and second LED modules is outputted into an area where light scattering members are sparse.Type: GrantFiled: May 22, 2003Date of Patent: May 23, 2006Assignee: Nippon Sheet Glass Company, LimitedInventors: Kouzou Fujino, Ryo Anraku
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Patent number: 6776494Abstract: A plane display lamp using one or two dot-like light sources. This plane display lamp comprises a plate-like light guiding member; a bottom plate covering a bottom surface of said light guiding member; a casing frame covering side faces of said light guiding member; a diffusing sheet covering a top surface of said light guiding member; and dot-like light sources provided on one side face or on two side faces opposite to each other of said light guiding member and emitting light to said light guiding member, and a light scatterer pattern is provided on a bottom surface of the light guiding member. When a side face thereof is inclined, a light scatterer pattern may be provided also on the inclined side face or just below the inclined side face.Type: GrantFiled: December 4, 2002Date of Patent: August 17, 2004Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Kouzou Fujino, Makoto Ikeda
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Publication number: 20030218874Abstract: A planar light source device comprises a light guide member having light scattering members for scattering light on the rear face of it, and a first LED module and a second LED module arranged on an end face of the light guide member. The light guide member has an area having no light scattering members in the vicinity of the LED modules, and has a corner-cut portion obtained by cutting a corner at an inclination angle &thgr; in the light outputting direction of the first LED module. The first LED module is provided in the middle of the short side face of the light guide member, and the second LED module is provided on the corner-cut portion of the light guide member. The light from the first and second LED modules is outputted into an area where light scattering members are sparse.Type: ApplicationFiled: May 22, 2003Publication date: November 27, 2003Inventors: Kouzou Fujino, Ryo Anraku
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Publication number: 20030179420Abstract: The lighting apparatus includes an airspace arranged between the light source and the optical waveguide, having a thickness corresponding to one wavelength or more of the light outputted from the light source unit and to ½ or less of a thickness of the optical waveguide. The light outputted at an angle larger than that of the total reflection is totally reflected by an output surface of the light source unit, is returned into the light source unit, and is outputted from the output surface. The light outputted at an angle smaller than that of the total reflection is widened in an area ranging −90° to +90° of the airspace and reaches the entire end surface of the optical waveguide. The light entering the optical waveguide is totally reflected by a side surface of the optical waveguide and is propagated in the optical waveguide.Type: ApplicationFiled: March 20, 2003Publication date: September 25, 2003Inventor: Kouzou Fujino
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Publication number: 20030086252Abstract: A plane display lamp using one or two dot-like light sources. This plane display lamp comprises a plate-like light guiding member; a bottom plate covering a bottom surface of said light guiding member; a casing frame covering side faces of said light guiding member; a diffusing sheet covering a top surface of said light guiding member; and dot-like light sources provided on one side face or on two side faces opposite to each other of said light guiding member and emitting light to said light guiding member, and a light scatterer pattern is provided on a bottom surface of the light guiding member. When a side face thereof is inclined, a light scatterer pattern may be provided also on the inclined side face or just below the inclined side face.Type: ApplicationFiled: December 4, 2002Publication date: May 8, 2003Inventors: Kouzou Fujino, Makoto Ikeda
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Patent number: 6502946Abstract: A plane display lamp using one or two dot-like light sources. This plane display lamp comprises a plate-like light guiding member; a bottom plate covering a bottom surface of said light guiding member; a casing frame covering side faces of said light guiding member; a diffusing sheet covering a top surface of said light guiding member; and dot-like light sources provided on one side face or on two side faces opposite to each other of said light guiding member and emitting light to said light guiding member, and a light scatterer pattern is provided on a bottom surface of the light guiding member. When a side face thereof is inclined, a light scatterer pattern may be provided also on the inclined side face or just below the inclined side face.Type: GrantFiled: March 19, 2001Date of Patent: January 7, 2003Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Kouzou Fujino, Makoto Ikeda
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Publication number: 20020114152Abstract: An LED module is mounted on a case frame by fitting three pins formed at a concave portion of the case frame, into holes formed to the LED module corresponding to the pins. A light-guide plate is fitted into the case frame formed integrally with a bottom cover in a descending direction. The light-guide plate is fixed by a hook provided for the case frame. In this case, a space between the light-guide plate and the LED module is prevented by pressing the light-guide plate to the LED module with a pressing spring. Since the light-guide plate is fitted into the case frame in the descending direction and a light scattering sheet is adhered to an outer end surface of the case frame in the descending direction, the reverse of a worked product is not required during a working process and the number and time of working processes can be saved.Type: ApplicationFiled: February 21, 2002Publication date: August 22, 2002Inventors: Kouzou Fujino, Makoto Ikeda, Tomihisa Saitou
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Publication number: 20020057846Abstract: In an image reading apparatus using a contact image sensor, an area light source for reading an image from a film original is provided. The area light source has a light guide plate and an LED device in the center of a side surface on the shorter side of the light guide plate. In the LED device, red-, green-, and blue-LED chips are mounted on the same LED package and red-, green-, and blue-light are switched and lit on. In the light guide plate, the bottom surface is covered with a white bottom plate and four side surfaces are covered with a white case frame. A scattering sheet is adhered to the upper surface of the white case frame, that is, a light emitting surface. On the rear surface of the light guide plate, light scatterers are formed by a screen printing method so that a specific pattern is drawn by high-reflectance white ink.Type: ApplicationFiled: November 14, 2001Publication date: May 16, 2002Inventors: Tomihisa Saitou, Kouzou Fujino