Taiwan's LED packaging factory Yiguang and Japanese LED packaging factory Nichia issued a press release on November 6th for the YAG patent dispute in China. The patent battle between the two parties has once again caused the LED industry to pay attention to patent litigation.

Recently, the Taiwan Industrial Technology Research Institute proposed that in addition to the Japanese-Asianization, the patent disputes faced by Taiwanese factories need to pay close attention to the patents from the Philips Lighting Patent Licensing Union and the Zhaga shared interface that are not “free authorization” and the massive amount of LEDs in the mainland. The threat posed by patent applications.

Yiguang and Nichia have set off a patent litigation in the world, and Nichia announced on November 6 that the Beijing No. 1 Intermediate People's Court rejected Yiguang's request for overturning the decision and maintained two Japanese YAG patents ( ZL97196762.8, ZL03159595.2) Effective decision. In the evening of the same day, Everlight issued a press release stating that only the remaining part of the first- and second-instance trials of the Japanese YAG patent was only valid, stressing that it had no impact on the layout of Yiguang products.

Taiwan's LED packaging factories, including Yiguang, Dongbei and Hongqi, have both patent litigation with Nichia, and the Industrial Technology Research Institute pointed out that one of the main sources of patent threats facing the LED lighting industry in Taiwan is Japan's Asianization. According to the patent layout of Nichia, the phosphor materials and concentration analysis in the patent group of Nichia Huaguang have filed suit against competitors in Europe and the United States. Nichia has used a number of division methods to extend and expand the scope of patents.

With the LED lighting industry taking off, the LED factory is also actively deploying lighting-related patents. The report also pointed out that the international LED manufacturer Philips has placed a large number of LED lighting patents in the world, and joined other patentees to establish the Philips Lighting Patent Licensing Alliance. In order to propose patent infringement lawsuits, all international LED manufacturers are authorized to carry out patents.

Another notable risk is the potential threat from a large number of patent applications from mainland manufacturers. The number of patent applications in mainland China has risen rapidly in recent years, but the patents applied by mainland manufacturers are currently on average not heavy weight. From the perspective of the type of patent application, mainland manufacturers still mostly apply for utility model patents. The patents applied by international manufacturers and Taiwanese manufacturers on the mainland are mainly invention patents.

However, compared with the layout of lighting patents by international manufacturers, manufacturers in Taiwan still lack key patents for lighting applications, and several proposals recently proposed by R&D units such as ITRI are expected to bridge the gap in Taiwan's industrial patents. .

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