Mitsubishi Chemical Corporation (MCC) and the National Institute for Materials Science (NIMS) announced that they have won in two patent administrative suits and confirm the validity of a patent (No. ZL201110066517.7) for red phosphor. (image: NIMS) MCC filed the patent infringement litigation with the Shenzhen Intermediate People’s Court against Shield on January 23, 2015. Another litigation filing with that court was against Intematix, its American parent Intematix Corporation, and Chinese sales agency GrandLux Optoelectronics (collectivel...

Intellectual properties are crucial for technology developers and manufacturers. As a result, the disputes for patented technologies continue to go on. This week, Japan’s Mitsubishi Chemical Corporation (MCC) announced its victory of patent infringement litigation and the U.S. International Trade Commission (ITC) has begun investigation for the patent infringement case raised by UC Santa Barbara. MCC reported that on July 31 it obtained a judgement recognizing the infringement of its patent for red phosphor in China by the defendants, U.S.-based Intem...

A research team at the University of Innsbruck, Austria cooperated with Osram Opto Semiconductors to develop a new red phosphor with excellent luminescence properties which can make LED lighting more energy-efficient. The research article, titled “Sr[Li2Al2O2N2]:Eu2+—A high performance red phosphor to brighten the future” was published in Nature Communications on April 23, 2019. The scientists created the new red phosphor whose light is well perceived by the eye as the human eye is more sensitive to green and less sensitive to blue and red. With th...

Jiangsu Bree Optronics, a Chinese phosphor manufacturer, claimed patent invalidity against The National Institute for Materials Science (NIMS) in Japan, who changed the licensing scheme for its comprehensive patent on red phosphor since October 2018. In October 2018, NIMS announced a new licensing scheme to the patents on the nitride red phosphor by the name of CASN, SCASN or 1113 phosphor (S/CASN phosphor). Originally, companies manufacturing LED devices were able to purchase S/CASN phosphors from phosphor manufacturing companies holding NIM...

Mitsubishi Chemical Corporation announced that it obtained a judgment recognizing an infringement for its red phosphor patent in China by Yantai Shield Advanced Materials (Shield). Mitsubishi Chemical has filed a suit in the Shenzhen Intermediate People's Court on January 23, 2015, accusing the Chinese company of infringement for the patents (No. ZL200480040967.7, No. ZL200710199440.4, and No. ZL201110066517.7) that are related to red phosphor. The patents are owned by Mitsubishi and the National Institute for Materials Science (NIMS). Mitsubishi...

Mitsubishi Chemical Corporation (MCC; Head office: Chiyoda-ku, Tokyo; President: Hitoshi Ochi) and National Institute for Materials Science (NIMS; Location: Tsukuba-shi, Ibaraki; President: Kazuhito Hashimoto) today announced that the Patent Reexamination Board of the State Intellectual Property Office of the P.R.C. (SIPO) has dismissed every aspect of the claim, filed on November 2, 2016, by China’s Intematix Suzhou Lighting Co., Ltd.* 1 (Intematix Suzhou Lighting), requesting for the invalidation of the Chinese patent (No. ZL201110066517.7; “the patent”* 2 ) for red phosphor, a material used extensively in light-emitting diodes (LEDs), owned by MCC and NIMS. The board approved the validity of the patent, and MCC and NIMS received the written decision effective May 10. 

GE has unlocked the wide color gamut potential for mobile phones, tablets, PCs and TVs with its RadiantRed™ Technology, delivering greater overall color and the truest red color possible in LED-backlit LCD displays. The technology offers manufacturers the ability to create the brightest, most colorful LED HD displays available for a wide range of devices, including the next generation of mobile devices and high dynamic range (HDR) TVs.

GE to manufacture TriGain™, GE’s family of enhanced potassium fluorosilicate (PFS) phosphors for use in LED-based display backlight applications. The TriGain family of phosphors offers improved narrow red band performance, resulting in reds that are sharper and cleaner, enabling richer picture quality and increasing the color gamut for backlit displays. Samples of TriGain may now be obtained from GE Lighting with production quantities available in mid-2015.

Leading global LED manufacturer Nichia’s product lineup for 2015 will include UV LEDs, Mn 4+red phosphor powder, and laser diode products, company representatives revealed at a recent press conference at Hotel Okura in Taipei, Taiwan.

Mitsubishi Chemical Corporation (MCC; Head office: Chiyoda-ku, Tokyo; President: Hiroaki Ishizuka) today announced that on January 23, the company filed a suit in the Intermediate People's Court in Shenzhen City alleging that products of Yantai Shield Advanced Materials Co., Ltd. and U.S.-based Intematix Corporation infringed on a patent (Chinese patent no. ZL201110066517.7, etc.) for red phosphor owned by MCC and National Institute for Materials Science. MCC seeks an injunction on the production and sale of phosphors in China and damages in this lawsuit.

GE sheds light on the company’s PFS phosphor red technology and developments in this latest blog entry.

The role of phosphor powder in LED applications is increasingly important to lower LED production costs and meet higher light quality demands, said Calvin Yeh, Global Strategic Marketing Manager, Lighting/PV Business Field, Merck Display Technologies, at LEDforum 2014 hosted by LEDinside on Oct. 24, 2014 in Taipei, Taiwan.