Patents by Inventor Takuya Kushimoto
Takuya Kushimoto 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: 7312477Abstract: Whereas incandescent light bulbs and other similar light sources known in the related art emit light in all directions, LED lamps can emit light in a single direction, and this is manifested in the problem of being unable to achieve light distribution characteristics satisfied by conventional headlamp designs. In accordance with an embodiment of the invention, an LED lamp for a light source of a headlamp can include an LED chip 2 in the vicinity of the focus of a projection means and a shielding member 7 covering a portion of the LED chip 2 in a formation allowing a light distribution characteristic suitable for a vehicle front-illumination light to be obtained when light from the LED chip 2 is magnified and projected in an illumination direction by a projection lens 10 or the like constituting the projection means. Accordingly, accurate light distribution characteristics can be obtained in a simple manner by projecting in the illumination direction using the projection lens 10.Type: GrantFiled: November 22, 2005Date of Patent: December 25, 2007Assignee: Stanley Electric Co., Ltd.Inventors: Yasushi Yatsuda, Takashi Ebisutani, Teruo Koike, Takuya Kushimoto, Ryotaro Owada, Masafumi Ohno, Takashi Futami
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Publication number: 20070263404Abstract: A vehicle lamp can include a plurality of light source modules each having an LED as a light source, and optical systems for distributing light from each of the light source modules frontward toward predetermined areas or predetermined patterns that are different from each other and which make up a light distribution pattern. Each of the optical systems can be optimized to emit light to a predetermined area, and each of the light source modules' LEDs can be optimally arranged for each of the corresponding optical systems.Type: ApplicationFiled: June 18, 2007Publication date: November 15, 2007Inventors: Yasushi Yatsuda, Teruo Koike, Takuya Kushimoto, Takashi Futami, Ryotaro Owada
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Patent number: 7232247Abstract: A vehicle lamp can include a plurality of light source modules each having an LED as a light source, and optical systems for distributing light from each of the light source modules frontward toward predetermined areas or predetermined patterns that are different from each other and which make up a light distribution pattern. Each of the optical systems can be optimized to emit light to a predetermined area, and each of the light source modules' LEDs can be optimally arranged for each of the corresponding optical systems.Type: GrantFiled: December 21, 2005Date of Patent: June 19, 2007Assignee: Stanley Electric Co., Ltd.Inventors: Yasushi Yatsuda, Teruo Koike, Takuya Kushimoto, Takashi Futami, Ryotaro Owada
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Patent number: 7059755Abstract: A vehicle lamp can include a plurality of light source modules each having an LED as a light source, and optical systems for distributing light from each of the light source modules frontward toward predetermined areas or predetermined patterns that are different from each other and which make up a light distribution pattern. Each of the optical systems can be optimized to emit light to a predetermined area, and each of the light source modules' LEDs can be optimally arranged for each of the corresponding optical systems.Type: GrantFiled: February 17, 2004Date of Patent: June 13, 2006Assignee: Stanley Electric Co., Ltd.Inventors: Yasushi Yatsuda, Teruo Koike, Takuya Kushimoto, Takashi Futami, Ryotaro Owada
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Publication number: 20060120081Abstract: A vehicle lamp can include a plurality of light source modules each having an LED as a light source, and optical systems for distributing light from each of the light source modules frontward toward predetermined areas or predetermined patterns that are different from each other and which make up a light distribution pattern. Each of the optical systems can be optimized to emit light to a predetermined area, and each of the light source modules' LEDs can be optimally arranged for each of the corresponding optical systems.Type: ApplicationFiled: December 21, 2005Publication date: June 8, 2006Inventors: Yasushi Yatsuda, Teruo Koike, Takuya Kushimoto, Takashi Futami, Ryotaro Owada
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Publication number: 20060071222Abstract: Whereas incandescent light bulbs and other similar light sources known in the related art emit light in all directions, LED lamps can emit light in a single direction, and this is manifested in the problem of being unable to achieve light distribution characteristics satisfied by conventional headlamp designs. In accordance with an embodiment of the invention, an LED lamp for a light source of a headlamp can include an LED chip 2 in the vicinity of the focus of a projection means and a shielding member 7 covering a portion of the LED chip 2 in a formation allowing a light distribution characteristic suitable for a vehicle front-illumination light to be obtained when light from the LED chip 2 is magnified and projected in an illumination direction by a projection lens 10 or the like constituting the projection means. Accordingly, accurate light distribution characteristics can be obtained in a simple manner by projecting in the illumination direction using the projection lens 10.Type: ApplicationFiled: November 22, 2005Publication date: April 6, 2006Inventors: Yasushi Yatsuda, Takashi Ebisutani, Teruo Koike, Takuya Kushimoto, Ryotaro Owada, Masafumi Ohno, Takashi Futami
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Patent number: 7019334Abstract: Whereas incandescent light bulbs and other similar light sources known in the prior art emit light in all directions, LED lamps emit light in a single direction only, and this is manifested in the problem of being unable to achieve light distribution characteristics satisfied by conventional headlamp designs. The present invention realizes an LED lamp for a light source of a headlamp disposing an LED chip 2 in the vicinity of the focus of a projection means and providing a shielding member 7 covering a portion of the LED chip 2 in a formation allowing a light distribution characteristic suitable for a vehicle front-illumination light to be obtained when light from the LED chip 2 is magnified and projected in an illumination direction by a projection lens 10 or the like constituting the projection means; accordingly, accurate light distribution characteristics can be obtained in a simple manner by projecting in the illumination direction using the projection lens 10.Type: GrantFiled: September 16, 2003Date of Patent: March 28, 2006Assignee: Stanley Electric Co., Ltd.Inventors: Yasushi Yatsuda, Takashi Ebisutani, Teruo Koike, Takuya Kushimoto, Ryotaro Owada, Masafumi Ohno, Takashi Futami
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Publication number: 20050088853Abstract: A vehicle lamp can include a plurality of light source modules each having an LED as a light source, and optical systems for distributing light from each of the light source modules frontward toward predetermined areas or predetermined patterns that are different from each other and which make up a light distribution pattern. Each of the optical systems can be optimized to emit light to a predetermined area, and each of the light source modules' LEDs can be optimally arranged for each of the corresponding optical systems.Type: ApplicationFiled: February 17, 2004Publication date: April 28, 2005Inventors: Yasushi Yatsuda, Teruo Koike, Takuya Kushimoto, Takashi Futami, Ryotaro Owada
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Publication number: 20050083686Abstract: A modular LED can include an LED chip, a base, and a lens. The lens preferably has a focus at a position spaced a certain distance behind the base to form a virtual light source image of the LED chip. Plural modular LEDs can be integrated into a lamp such that virtual light source images are superimposed. Thus, a light source module can serve as a single light source.Type: ApplicationFiled: October 13, 2004Publication date: April 21, 2005Inventors: Yasushi Yatsuda, Takashi Ebisutani, Takuya Kushimoto
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Publication number: 20050041434Abstract: A light source apparatus for vehicle lamps and particularly vehicle headlights can include a plurality of LED elements mounted in a cavity located on a base surface or on a base. Each of the LED elements can be arranged in such a manner as to form an emission shape and a brightness distribution that is suited for a light distribution pattern, and especially a light distribution pattern for vehicle headlight.Type: ApplicationFiled: March 25, 2004Publication date: February 24, 2005Inventors: Yasushi Yatsuda, Teruo Koike, Takuya Kushimoto
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Publication number: 20040251469Abstract: Whereas incandescent light bulbs and other similar light sources known in the prior art emit light in all directions, LED lamps emit light in a single direction only, and this is manifested in the problem of being unable to achieve light distribution characteristics satisfied by conventional headlamp designs. The present invention realizes an LED lamp for a light source of a headlamp disposing an LED chip 2 in the vicinity of the focus of a projection means and providing a shielding member 6 covering a portion of the LED chip 2 in a formation allowing a light distribution characteristic suitable for a vehicle front-illumination light to be obtained when light from the LED chip 2 is magnified and projected in an illumination direction by a projection lens 10 or the like constituting the projection means; accordingly, accurate light distribution characteristics can be obtained in a simple manner by projecting in the illumination direction using the projection lens 10.Type: ApplicationFiled: September 16, 2003Publication date: December 16, 2004Inventors: Yasushi Yatsuda, Takashi Ebisutani, Teruo Koike, Takuya Kushimoto, Ryotaro Owada, Masafumi Ohno, Takashi Futami
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Patent number: 6447148Abstract: Light distribution characteristics are defined which define a correspondence relation between the position of a reflection point on a reference plane and the position of an image of a light source. In accordance with the light distribution characteristics, a path line in the reference plane is determined. A profile curve for each of a plurality of sampling points dispersibly distributed on the path line, is determined in accordance with the light distribution characteristics, the profile curve passing through the sampling point and corresponding to the topological shape of a reflecting surface to be determined. As the reflection point moves along the profile curve, the image of the light source moves in the direction crossing the reference plane in accordance with the light distribution characteristics. The topological shape of the reflecting surface is determined in accordance with the profile curve determined for each sampling point.Type: GrantFiled: April 4, 2000Date of Patent: September 10, 2002Assignee: Stanley Electric Co., Ltd.Inventors: Toshihiro Oikawa, Takuya Kushimoto, Yasushi Yatsuda, Ryotaro Owada, Teruo Koike, Kouji Ohe, Masahiro Hosaka