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公开(公告)号：US11525547B2
公开(公告)日：2022-12-13
申请号：US17356576
申请日：2021-06-24
Inventor： Tao Jiang , Yi-Ching Chen
IPC: F21K9/232 , H05B45/00 , F21Y115/10 , F21Y107/00 , F21Y107/20
Abstract: An LED light bulb includes a bulb shell, a bulb base, two conductive supports, a stem, and an LED filament. The bulb base is connected with the bulb shell. The two conductive supports are disposed in the bulb shell. The stem extends from the bulb base to inside of the bulb shell. The LED filament includes a plurality of LED chips and two conductive electrodes. The LED chips are arranged in an array along an elongated direction of the LED filament. The two conductive electrodes are respectively disposed at two ends of the LED filament and connected to the LED chips. The two conductive electrodes are respectively connected to the two conductive supports. The LED filament is curled to satisfy symmetry characteristics.
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公开(公告)号：US20220086975A1
公开(公告)日：2022-03-17
申请号：US17536857
申请日：2021-11-29
Inventor： TAO JIANG , Wei-Hong Xu , YUKIHIRO SAITO , HAYATO UNAGIIKE , Ai-Ming Xiong , Jun-Feng Xu , Yi-Ching Chen
Abstract: An LED light bulb includes a lamp housing, an LED filament in the lamp housing and a power module. The LED filament includes a first and a second LED sections, a conductive section, a first and a second conductive electrodes and a light conversion layer. Each LED section includes LED chips connected in serial to from a LED string. The conductive section connects one end of the LED string of the first LED section with one end of the LED string of the second sections. The polarities of the ends of the LED strings are the same. The other ends of the LED strings are respectively connected to the first and the second conductive electrodes. The light conversion layer is coated on at least two sides of the LED chips. The power module's terminals are connected to the conductive section and the conductive electrodes.
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公开(公告)号：US11125393B2
公开(公告)日：2021-09-21
申请号：US16361261
申请日：2019-03-22
Inventor： Tao Jiang , Wei-Hong Xu , Yukihiro Saito , Hayato Unagiike , Ai-Ming Xiong , Jun-Feng Xu , Yi-Ching Chen
IPC: F21K9/232 , F21K9/61 , F21V15/04 , H01L33/00 , H05B45/20 , H05B45/00 , F21Y115/10 , F21Y107/70 , H01L33/50 , H01L33/54 , H01L33/62 , H05B45/32 , H05B45/375 , H05B45/38 , H05B45/357
Abstract: An LED light bulb, comprising:a lamp housing, doped with a golden yellow material or coated with a yellow film on its surface,a bulb base, connected with the lamp housing, a stem with a stand extending to the center of the lamp housing, disposed in the lamp housing, a LED filament disposed in the lamp housing, at least a half of the LED filament is around a center axle of the LED light bulb, where the center axle of the LED light bulb is coaxial with the axle of the stand, two conductive supports, connected with the stem and the LED filament.
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公开(公告)号：US10982818B2
公开(公告)日：2021-04-20
申请号：US16406052
申请日：2019-05-08
Inventor： Tao Jiang , Wei-Hong Xu , Yukihiro Saito , Hayato Unagiike , Ai-Ming Xiong , Jun-Feng Xu , Yi-Ching Chen
IPC: F21K9/61 , F21K9/232 , F21V15/04 , H05B33/08 , H01L33/00 , H05B45/00 , F21Y115/10 , F21Y107/70 , H01L33/50 , H01L33/54 , H01L33/62
Abstract: An light bulb comprise a lamp housing filled with gas which doped with a golden yellow material or coated with a yellow film on its surface; a bulb base, connected with the lamp housing; a stem with a stand extending to the center of the lamp housing, disposed in the lamp housing; a LED filament disposed in the lamp housing, at least a half of the LED filament is around a center axle of the LED light bulb, where the center axle of the LED light bulb is coaxial with the axle of the stand, two conductive supports, respectively connected with the stem and the LED filament; a driving circuit, electrically connected with both the conductive supports and the bulb base.
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公开(公告)号：US10976009B2
公开(公告)日：2021-04-13
申请号：US16290951
申请日：2019-03-03
Inventor： Tao Jiang , Wei-Hong Xu , Yukihiro Saito , Hayato Unagiike , Ai-Ming Xiong , Jun-Feng Xu , Yi-Ching Chen
Abstract: An LED filament light bulb, comprising: a lamp housing with inner surface and outer surface opposite to the inner surface of the lamp housing, the lamp housing includes a layer of luminescent material, which is formed on the inner surface or the outer surface of the lamp housing or integrated in the material of the lamp housing; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing; and a single filament, disposed in the light housing, the LED filament comprising: a plurality of LED filament units, wherein each of the plurality of LED filament units includes a single LED chip with an upper surface and a lower surface opposite to the upper surface. The LED filament light bulb further comprising a plurality of supporting arms, connected with and supporting the LED filament, wherein the stem comprises a stand extending to the center of the lamp housing, the stand supports the supporting arms.
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Patent Agency Ranking
公开(公告)号：US10794545B2
公开(公告)日：2020-10-06
申请号：US16432949
申请日：2019-06-06
Inventor： Tao Jiang , Wei-Hong Xu , Yukihiro Saito , Hayato Unagiike , Al-Ming Xiong , Jun-Feng Xu , Yi-Ching Chen
IPC: F21K9/232 , F21K9/61 , F21V15/04 , H01L33/00 , H05B45/00 , F21Y115/10 , F21Y107/70 , H01L33/50 , H01L33/54 , H01L33/62
Abstract: An LED light bulb having a bulb base and a bulb shell connected with the bulb base, the bulb shell having a layer of luminescent material formed in the material of the bulb shell. A stem with a stand extending to the center of the bulb shell is disposed in the bulb shell. A flexible LED filament is disposed in the bulb shell, at least half of the LED filament is disposed around a center axle of the LED light bulb, where the center axle is coaxial with the axle of the stand and two conductive supports, each of which are connected with the stem and the LED filament. A driving circuit is electrically connected with the two conductive supports and the bulb base. Additionally, a plurality of supporting arms has two ends, with one end connected to the stem and the other end connected to the LED filament.
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公开(公告)号：US20190128482A1
公开(公告)日：2019-05-02
申请号：US16234124
申请日：2018-12-27
Inventor： TAO JIANG , Wei-Hong Xu , YUKIHIRO SAITO , HAYATO UNAGIIKE , Ai-Ming Xiong , Jun-Feng Xu , Yi-Ching Chen
Abstract: An LED filament comprises at least one LED section, a conductive section, two conductive electrodes and a light conversion layer. The conductive section is used to electrically connect two adjacent LED sections. The two conductive electrodes are electrically connected to each of the LED sections. Each of the LED sections includes at least two LED chips electrically connected to each other. The light conversion layer covers the LED sections, the conductive sections and the conductive electrodes, and a part of the two electrodes is exposed respectively. Since the LED filament includes the LED section and the conductive section, when the LED filament is bent, the stress is easily concentrated on the conductive section. Therefore, the breakage probability of the conductive wires connected within the LED section is reduced during bending. The quality of the LED filament and its application is improved.
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公开(公告)号：US11028970B2
公开(公告)日：2021-06-08
申请号：US16279972
申请日：2019-02-19
Inventor： Tao Jiang , Wei-Hong Xu , Yukihiro Saito , Hayato Unagiike , Ai-Ming Xiong , Jun-Feng Xu , Yi-Ching Chen
IPC: F21K9/61 , F21K9/232 , F21V15/04 , H05B33/08 , H01L33/00 , H05B45/00 , F21Y115/10 , F21Y107/70 , H01L33/50 , H01L33/54 , H01L33/62
Abstract: An light bulb, comprising: a lamp housing with inner surface and outer surface opposite to the inner surface of the lamp housing, the lamp housing includes a layer of luminescent material, which is formed on the inner surface or the outer surface of the lamp housing or integrated in the material of the lamp housing; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing; and a single filament, disposed in the light housing.
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公开(公告)号：US10982819B2
公开(公告)日：2021-04-20
申请号：US16408484
申请日：2019-05-10
Inventor： Tao Jiang , Wei-Hong Xu , Yukihiro Saito , Hayato Unagiike , Ai-Ming Xiong , Jun-Feng Xu , Yi-Ching Chen
Abstract: An LED light bulb, consisting of: a lamp housing with inner surface and outer surface opposite to the inner surface of the lamp housing, the lamp housing includes a layer of luminescent material which is formed on the inner surface or the outer surface of the lamp housing or integrated in the material of the lamp housing; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing, the stem comprises a stand extending to the center of the lamp housing; and a single filament, disposed in the light housing, a plurality of supporting arms, each of the supporting arms comprises a first end and a second end opposite to the first end of the supporting arms, the first end of each of the supporting arms is connected with the stand while the second end of each of the supporting arms is connected with LED filament.
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