Patents by Inventor Kunihiko Ikada
Kunihiko Ikada 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: 20150023015Abstract: A luminaire may include a luminaire main body, an attachment plate, a plurality of light-emitting modules, a plurality of lenses, and a lighting circuit. In some examples, the luminaire main body may include an opening in a lower surface. The attachment plate may have a flat plate shape and may be arranged in the luminaire main body, and a lower surface faces the opening. The plurality of light-emitting modules may include semiconductor light-emitting elements, and may be attached to the lower surface of the attachment plate. The plurality of lenses may be provided for the respective light-emitting modules, and control luminous intensity distribution of light from the light-emitting modules. The lighting circuit may be arranged above the attachment plate in the luminaire main body, and configured to light the light-emitting modules.Type: ApplicationFiled: September 30, 2014Publication date: January 22, 2015Inventors: Toshiyuki Ishida, Kunihiko Ikada, Tomokazu Usami, Kimihito Sato, Li qiu Fang, Li Bin
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Patent number: 8740422Abstract: In a bulb and a luminaire according to one embodiment, plural fins for thermal radiation are provided on the outer circumferential surface of a main body in which a lighting circuit is attached, a light-emitting module is attached to a module attaching section integrated with the front of the main body, and a cylindrical section that surrounds the light-emitting module is protrudingly provided on a light extracting side.Type: GrantFiled: August 30, 2012Date of Patent: June 3, 2014Assignee: Toshiba Lighting & Technology CorporationInventors: Toshiya Tanaka, Kozo Ogawa, Yoshihiro Nomura, Kunihiko Ikada
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Publication number: 20140003049Abstract: A luminaire (11) includes a luminaire main body (21), an attachment plate (23), a plurality of light emitting modules (24), a plurality of lenses (25), and a lighting circuit (26). The luminaire main body (21) includes an opening (34) in a lower surface. The attachment plate (23) has a flat plate shape and is arranged in the luminaire main body (21), and a lower surface faces the opening (34). The plurality of light-emitting modules (24) include semiconductor light-emitting elements, and are attached to the lower surface of the attachment plate (23). The plurality of lenses (25) are provided for the respective light-emitting modules (24), and control luminous intensity distribution of light from the light-emitting modules (24). The lighting circuit (26) is arranged above the attachment plate (23) in the luminaire main body (21), and lights the light-emitting modules (24).Type: ApplicationFiled: March 21, 2012Publication date: January 2, 2014Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Toshiyuki Ishida, Kunihiko Ikada, Tomokazu Usami, Kimihito Sato, Li qui Fang, Li Bin
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Publication number: 20130286668Abstract: A screwing device includes a screw shaft and a knob. The screw shaft is provided with a screw center axis as the center thereof. The knob includes a knob body having the screw shaft projecting therefrom and an operating hole provided on the knob body about a hole center axis as the center thereof, the hole center axis extending in a direction orthogonal to the screw center axis. The operation hole is arranged at a position deviated from the screw center axis so that the hole center axis does not intersect the screw center axis.Type: ApplicationFiled: July 12, 2012Publication date: October 31, 2013Applicant: Toshiba Lighting & Technology CorporationInventors: Toshiyuki ISHIDA, Kunihiko IKADA, Li BIN
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Publication number: 20130100683Abstract: In a bulb and a luminaire according to one embodiment, plural fins for thermal radiation are provided on the outer circumferential surface of a main body in which a lighting circuit is attached, a light-emitting module is attached to a module attaching section integrated with the front of the main body, and a cylindrical section that surrounds the light-emitting module is protrudingly provided on a light extracting side.Type: ApplicationFiled: August 30, 2012Publication date: April 25, 2013Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Toshiya TANAKA, Kozo OGAWA, Yoshihiro NOMURA, Kunihiko IKADA
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Patent number: 7626322Abstract: A self-ballasted fluorescent lamp includes a luminous tube that is formed in a bent shape with a pair of electrode-side end portions located at a the bottom end of the luminous tube. A cover houses a lighting device for lighting the luminous tube. A base is attached to the bottom end of the cover, and the luminous tube is supported at the top end, of the lamp. The outer diameter of a bulb of the luminous tube 14 ranges from 3 to 8 mm, and the maximum width of the luminous tube, is not greater than 30 mm. The cover is formed so that the proportion of the distance by which the cover extends from the base to the lamp length excluding the base ranges from 0 to 25%, and so that the maximum outer diameter of the cover ranges from 1.0 to 1.5 times the outer diameter of the base.Type: GrantFiled: March 24, 2006Date of Patent: December 1, 2009Assignee: Toshiba Lighting & Technology Corp.Inventors: Kunihiko Ikada, Hiroshi Kubota, Toshiya Tanaka
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Publication number: 20090051265Abstract: A self-ballasted fluorescent lamp includes a luminous tube that is formed in a bent shape with a pair of electrode-side end portions located at a the bottom end of the luminous tube. A cover houses a lighting device for lighting the luminous tube. A base is attached to the bottom end of the cover, and the luminous tube is supported at the top end, of the lamp. The outer diameter of a bulb of the luminous tube 14 ranges from 3 to 8 mm, and the maximum width of the luminous tube, is not greater than 30 mm. The cover is formed so that the proportion of the distance by which the cover extends from the base to the lamp length excluding the base ranges from 0 to 25%, and so that the maximum outer diameter of the cover ranges from 1.0 to 1.5 times the outer diameter of the base.Type: ApplicationFiled: March 24, 2006Publication date: February 26, 2009Applicant: Toskhiba Lighting & Technology Corp.Inventors: Kunihiko Ikada, Hiroshi Kubota, Toshiya Tanaka
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Publication number: 20080238291Abstract: A compact fluorescent lamp includes an arc tube having a bulb with a spiral portion formed in at least a portion thereof, the bulb having an electrode sealed in each of both end portions thereof so as to form a discharge path inside, and both the end portions of the bulb opposing to each other at positions inside a portion having a maximum outer diameter of the spiral portion so that the opposing end portions have a minimum distance of 5 to 15 mm; a lighting device lightening the arc tube; a cover member which supports the arc tube and in which the lighting device is arranged; and a base supported by the cover member.Type: ApplicationFiled: September 26, 2007Publication date: October 2, 2008Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Kimiyoshi NAGASAWA, Takeo YASUDA, Hiroshi KUBOTA, Shinya HAKUTA, Kunihiko IKADA, Tetsuya ONO, Toshiyuki Ikeda
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Publication number: 20070278959Abstract: A self ballasted compact fluorescent lamp is provided with a cover, a globe having a small-diameter portion formed on a side of an open end portion which is attached to the fitting end portion of the cover, and an arc tube accommodated in the globe and provided with a bulb having a pair of electrodes. The bulb includes a spiral portion connected to the electrodes, the spiral portion having a helix diameter larger than the small-diameter portion of the globe at least a portion of the spiral portion, and the spiral portion further includes a short discharge path portion which is continuously and integrally formed with the spiral portion, has a pair of electrode sealed end portions on the side of the small-diameter portion of the globe and has a discharge path length shorter than the spiral portion. A lighting control circuit unit is accommodated and connected to the base in the cover. A lighting apparatus includes such compact fluorescent lamp and an apparatus body to which the lamp is attached.Type: ApplicationFiled: May 30, 2007Publication date: December 6, 2007Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Kunihiko Ikada, Takeo Yasuda
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Patent number: 7268494Abstract: A compact fluorescent lamp comprises a fluorescent tube having a helical portion on at least a part thereof and turned down in the middle, a pair of tube ends thereof each provided with a discharge electrode, the pair of tube ends juxtaposing with each other in the same direction, a holder for holding the tube ends so as that the fluorescent tube is supported at the one side thereof, a lighting device for supplying a high-frequency power to the fluorescent tube, the lighting device comprising a circuit board facing the other side of the holder and circuit elements mounted on the circuit board, a cover for accommodating the lighting device, the cover opening at both ends and holding the holder at the one opening end, and a cap fixed to the other opening end of the cover for supplying a commercial power to the lighting device by being mounted to a socket of luminaire, wherein a thin tube is protruded from at least one of the tube ends of the fluorescent tube in the cover, and the thin tube is communicated withType: GrantFiled: May 9, 2005Date of Patent: September 11, 2007Assignee: Toshiba Lighting & Technology CorporationInventors: Takeo Yasuda, Kunihiko Ikada
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Patent number: 7053554Abstract: A bulb-shaped fluorescent lamp with an emission bulb having a bent tube and a lighting device having a circuit board and electronic parts mounted on the circuit board. The lighting device has a cover member with a cap and a holder for holding the emission bulb and the circuit board has a great part of its electronic parts disposed on the cap side. The lighting device has a fine tube that extends from the end of a portion of the bent tube toward the cap side within the cover member, and protrudes so that the surface temperature of a portion of said fine tube is kept in the range between 40–70°C. at the time of normal lighting and/or the fine tube extending from the end of the bent tube toward the cap side within the cover member protrudes from the end of said bent tube by 25–70 mm.Type: GrantFiled: July 16, 2003Date of Patent: May 30, 2006Assignee: Toshiba Lighting & Technology CorporationInventors: Takeo Yasuda, Kunihiko Ikada, Toshiyuki Ikeda, Yuichiro Takahara, Tetsuya Oono, Nobuhiro Tamura, Masahiro Izumi
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Publication number: 20050265018Abstract: A compact fluorescent lamp comprises a fluorescent tube having a helical portion on at least a part thereof and turned down in the middle, a pair of tube ends thereof each provided with a discharge electrode, the pair of tube ends juxtaposing with each other in the same direction, a holder for holding the tube ends so as that the fluorescent tube is supported at the one side thereof, a lighting device for supplying a high-frequency power to the fluorescent tube, the lighting device comprising a circuit board facing the other side of the holder and circuit elements mounted on the circuit board, a cover for accommodating the lighting device the cover opening at both ends and holding the holder at the one opening end, and a cap fixed to the other opening end of the cover for supplying a commercial power to the lighting device by being mounted to a socket of luminaire, wherein a thin tube is protruded from at least one of the tube ends of the fluorescent tube in the cover, and the thin tube is communicated with tType: ApplicationFiled: May 9, 2005Publication date: December 1, 2005Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORPORATIONInventors: Takeo Yasuda, Kunihiko Ikada
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Publication number: 20040017156Abstract: A lighting device having a circuit board with a fine tube inserting opening, and electric parts, outputs high-frequency power to an emission bulb having a bent tube. A cover member has a cap on the one end side, and a holder on the other end side. A fine tube protruding from the end of the emission bulb, and having a bent portion on the middle portion thereof, is disposed so that the tip end portion from the bent portion is positioned close to the axis passing through the center of the cap as compared with the base portion from the bent portion on the side of the emission bulb. A principal amalgam is contained at a position on the cap side as to the position where the electric parts, which emit relatively a great quantity of heat, have been disposed. The bent portion is disposed on the side of the emission bulb as to the circuit board, and the tip end portion is inserted into the fine tube inserting opening, and is extended on the cap side.Type: ApplicationFiled: July 16, 2003Publication date: January 29, 2004Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORP.Inventors: Takeo Yasuda, Kunihiko Ikada, Toshiyuki Ikeda, Yuichiro Takahara, Tetsuya Oono, Nobuhiro Tamura, Masahiro Izumi
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Patent number: 5227693Abstract: A fluorescent lamp including, a bulb having an outer surface and an inner surface, discharge gas contained in the bulb and generating ultraviolet rays by a discharge thereof, a pair of electrodes provided to the bulb for generating the discharge, a phosphor film formed on the inner surface of the bulb and having a non-uniform thickness thereof, and an ultraviolet suppressing film for suppressing the ultraviolet rays formed to be faced with the phosphor film, characterized in that the ultraviolet suppressing film has non-uniform ability for suppressing ultraviolet rays penetrating the phosphor film in accordance with portions thereof to decrease the difference in the intensity of the ultraviolet rays emitted from the ultraviolet suppressing film.Type: GrantFiled: March 29, 1991Date of Patent: July 13, 1993Assignee: Toshiba Lighting and Technology CorporationInventors: Yuichi Sakakibara, Keiji Hatakeyama, Kunihiko Ikada
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Patent number: D659859Type: GrantFiled: August 23, 2011Date of Patent: May 15, 2012Assignee: Toshiba Lighting & Technology CorporationInventors: Masayuki Yoshinobu, Shigeru Motoki, Kunihiko Ikada, Junichiro Yamamoto, Hairong Pang, Xinchao Xu
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Patent number: D659860Type: GrantFiled: August 23, 2011Date of Patent: May 15, 2012Assignee: Toshiba Lighting & Technology CorporationInventors: Masayuki Yoshinobu, Shigeru Motoki, Kunihiko Ikada, Junichiro Yamamoto, Hairong Pang, Xinchao Xu
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Patent number: D659861Type: GrantFiled: August 23, 2011Date of Patent: May 15, 2012Assignee: Toshiba Lighting & Technology CorporationInventors: Masayuki Yoshinobu, Shigeru Motoki, Kunihiko Ikada, Junichiro Yamamoto, Hairong Pang, Xinchao Xu
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Patent number: D671233Type: GrantFiled: February 24, 2012Date of Patent: November 20, 2012Assignee: Toshiba Lighting & Technology CorporationInventors: Masayuki Yoshinobu, Kunihiko Ikada, Bin Li, Hong Guo Da