Home Sitemap Japanese
header
HOME

NS News & Event

Nitride Semiconductors Continues Enforcement against Infringement of its UV LED Patent

On Feb. 18, 2021 (local time), Nitride Semiconductors Co., Ltd. (“Nitride”), a pioneer of ultraviolet light emitting diode (UV LED) technology, hereby announces that, it has successfully filed a complaint against Digi-Key Corporation (“Digikey”), a global electrical components distributor, in the U.S. District Court for the District of Minnesota, asserting infringement of Nitride’s UV LED patent.


In the complaint, Nitride is asserting that UV LED products being supplied by various LED companies - such as American Opto Plus LED Corp., Crystal IS Inc., Kingbright Electronic Co., Ltd., and QT-Brightek Corp. - have been infringing Nitride’s UV LED patent. In an earlier-filed patent litigation against Digikey, Nitride has already accused patent infringement against UV LED products of Luminus Device Inc. and Lite-On Semiconductor Corp.


Nitride is one of the earliest ground breakers in the field of UV-LEDs. With Professor Emeritus Shiro SAKAI at Tokushima University, Nitride succeeded in developing highly efficient UV-LEDs as early as 2000. This was the first time in the world such a breakthrough in UV LED technology had been achieved. Nitride has continued to manufacture and sell UV-LEDs thereafter, and has invested enormously in R&D to develop and enhance its UV-LED technology.


To protect its UV LED patented technology, Nitride initiated its patent enforcement campaign starting in 2017. By virtue of such efforts, a judgment was issued out of the U.S. District Court for the Northern District of California in favor of Nitride and against RayVio Corporation (“Rayvio”) in 2020, who infringed Nitride’s UV LED patent. That judgment was also in Nitride’s favor with respect to the validity of its patent. The U.S. Patent & Trademark Office has also confirmed the validity of the key claims of Nitride’s patent in its final judgment on an Inter Parte Review case filed by RayVio.


Nitride considers its intellectual property rights to be vitally important company assets. Accordingly, Nitride will take any and all action necessary to enforce its patent against infringers in any country and uphold its patents and other intellectual property rights.

 

UV Seminar, Science Photonics Fair 2020

CEO Muramoto made an invited speech.

Date:
13th November, 2020 15:40–16:35
Venue:
Tokyo Metropolitan Industrial Trade Center, Hamamatsucho kan
Speaker:
CEO Yoshihiko Muramoto
Title:
Technology of UVC-LED and Development of Anti-virus Applications
 

Nitride Semiconductors Continues Enforcement against Infringement of its UV LED Patent

On Aug.20th, Nitride Semiconductors Co., Ltd. ("Nitride"), a pioneer of ultraviolet light emitting diode (UV LED) technology, hereby announces that, it has successfully filed an amended complaint against Digi-key Corp, a global electrical components distributor, in the U.S. District Court for the District of Minnesota, asserting infringement of Nitride's UV LED patent.


According to the amended complaint, UV LED products being supplied by various LED companies - such as Lite-On Semiconductor, Luminus Devices, and Vishay Intertechnology - are infringing Nitride's UV LED patent.


Nitride is one of the earliest ground breakers in the field of UV-LEDs. With Professor Shiro Sakai at Tokushima University, Nitride succeeded in developing highly efficient UV-LEDs as early as 2000. This was the first time in the world such a breakthrough in UV LED technology had been achieved. Nitride has continued to manufacture and sell UV-LEDs thereafter, and has invested enormously in R&D to develop and enhance its UV-LED technology.


To protect its UV LED patented technology, Nitride initiated its patent enforcement campaign starting in 2017. By virtue of such efforts, a judgment was issued out of the U.S. District Court for the Northern District of California in favor of Nitride and against RayVio Corporation ("Rayvio") in 2020, who infringed Nitride's UV LED patent. That judgment was also in Nitride's favor with respect to the validity of its patent. The U.S. Patent & Trademark Office has also confirmed the validity of the key claims of Nitride's patent in its final judgment on an Inter Parte Review case filed by RayVio.


Nitride considers its intellectual property rights to be vitally important company assets. Accordingly, Nitride will take any and all action necessary to enforce its patent against infringers in any country and uphold its patents and other intellectual property rights.

 

New Product Announcement Press Release

Summary

We are pleased to announce that we have developed the world's first UV-LED for exposure machines applied to manufacturing semiconductors and PCBs.
NS365L-9RXT

New product name: UV-LED; NS365L-9RXT


Background

UV lamps containing mercury are still used in semiconductor exposure machines, but in addition to functional restrictions such as long standby time, short lifetime, low UV illuminance stability, and inconvenient on / off control. Therefore, it is expected that the United Nations Environment Program Minamata Convention will promote switching to semiconductor (LED) light sources due to environmental issues.

Features

  • Energy saving, long life
    High efficiency, energy saving and long-life wavelength 365nm UV-LED chip is adopted, so UV output 3.2W (If: 3A, Vf: 4.6V) is demonstrated.
  • Narrow directional angle suitable for semiconductor exposure
    Parallel light is required for accurate exposure, but UV-LED light sources generally have a wide directional angle (about 120°), and the amount of light captured for exposure tends to be insufficient. Therefore, by combining a deep reflector with a lens of high UV transmittance, we have achieved a directional angle of 15° or less. This makes it possible to exchange the UV ramp light source of the conventional exposure machine with UV-LEDs instead of purchasing new UV-LED exposure machines.
  • Compact
    Size is very compact with a length of 9 mm x width of 9 mm x height of 8.5 mm, so mounting density can be increased.
  • Inexpensive
    The unit price per 10,000 mass production is around USD50.

Applications

light sources for exposure machines such as semiconductors and PCBs.
 

LED NEXT STAGE 2020

We will set up booth at LED NEXT STAGE 2020.
LED NEXT STAGE 2020 was canceled due to the spread of the Novel Coronavirus.

Date:
3-6 March, 2020 10:00–17:00
(10:00-16:30 on the last day)
Venue:
Tokyo Big Sight, Japan
Booth Number:
LD1005
Organized by:
Japan LED Association, Nikkei Inc.
 

CEO Muramoto will make a speech at Seminar Stage.
LED NEXT STAGE 2020 was canceled due to the spread of the Novel Coronavirus.

Date:
4 March, 2020 13:00–13:45
Venue
West Hall 3, Tokyo Big Sight
Speaker:
CEO Yoshihiko Muramoto
 

Nitride Semiconductor Wins UV LED Patent Lawsuits against RayVio

On Jan.27th, Nitride Semiconductor Co., Ltd. ("Nitride") announced that it won a patent infringement lawsuit against RayVio Corporation ("Rayvio"), a California UV-LED company.


On January 13, The California Northern District federal court issued a judgment in favor of Nitride, declaring that RayVio has infringed Nitride's patent and that the asserted claims of Nitride's patent are not invalid.


A one month ago, U.S. Patent Office has also confirmed the validity on the key claims of Nitride's patent in its final judgments of the Inter Parte Review case filed by RayVio.


Nitride is a pioneer in the field of UV-LED. With Professor Shiro Sakai at Tokushima University, Nitride succeeded in development of highly efficient UV-LED in 2000 for the first time in the world, and has continued to manufacture and sell UV-LED thereafter. Nitride has made a huge investment in R&D to develop and modify UV-LED, which has been quite challenging.


Nitride places its intellectual property rights as its vitally important management assets. Accordingly, Nitride will take resolute actions to against infringers in any country where appropriate and necessary to protect its patents and other intellectual property rights.


 

IR + UV EXPO 2019

We set up booth at IR + UV EXPO 2019.

Date:
24-26 April, 2019 10:00–17:00
Venue:
Pacifico Yokohama, Japan
Booth Number:
F-25
Organized by:
Japan Photonics Council

Booth

 

LIGHTING FAIR 2019

We set up booth at LIGHTING FAIR 2019.

Date:
March 5 (Tue.) to 8 (Fri.), 2019
10:00 a.m. to 5:00 p.m. (4:30 p.m. on last day only)
Venue:
Tokyo Big Sight West 1.2 Halls
Booth Number:
LF2016
Organized by:
UBM Japan Co., Ltd.

Booth

 

Care Show Japan 2019

We set up booth at Care Show Japan 2019.

Date:
23-24 January, 2019
10:00-17:00
Venue:
Tokyo Big Sight Exhibition Center, Japan
Booth Number:
D-42 (West Hall 3, 4)
Organized by:
UBM Japan Co., Ltd.

Booth

 

IWN2018

CEO Mr. Muramoto joined as a panelist in the ramp session.

Date:
November 11th to 16th, 2018
Venue:
Ishikawa Ongakudo, ANA Crowne Plaza Hotel Kanazawa, Motenashi-Dome, Kanazawa, Japan
Ramp session
title:

Nitride-based Optoelectronic Devices for Automobile Industry
Ramp session
date:

November 13th, 2018 (19:10 - 20:40)
Ramp session
venue:

ANA Crowne Plaza Hotel Kanazawa
 

The establishment of micro UV-LED chip company for micro LED display


The 79th JSAP Autumn Meeting 2018

CEO Muramoto made an invited speech.

Presentation date:
Sep. 18th, 2018 (13:30-14:00)
Venue:
Nagoya Congress Center Place 146
Speaker:
Nitride Semiconductors Co., Ltd. CEO Yoshihiko Muramoto
Title:
UV-LED will replace not only UV ramp but also visible LEDs (15.Crystal engineering)
Number:
18p-146-1
 

Nitride Filed Patent Infringement Lawsuit against Digi-Key (U.S. Electronic Component Seller) and RayVio (U.S. UV LED Manufacturer) in Tokyo

On July 12, 2018 (Japan time), Nitride Semiconductor Co., Ltd. ("Nitride") filed a patent infringement lawsuit with the Tokyo District Court against Digi-Key Corporation d/b/a Digi-Key Electronics ("Digi-Key"), which sells UV-LED products on the internet that are manufactured by RayVio Corporation ("RayVio"), a CA-based UV-LED manufacturer, and RayVio. In the complaint, Nitride is seeking injunction(including destruction of infringing products) and damages, asserting that Digi-Key and RayVio infringe Nitride’s patent (JP 3,285,341, "Method for Manufacturing Gallium Nitride Compound Semiconductor") by manufacturing and selling the UV-LED products.


Based on the U.S. patent corresponding to the Japanese patent described above, on May 23, 2017 (PDT), Nitride has already filed a patent infringement lawsuit with the U.S. District Court, Northern District of California against RayVio, and on September 22, 2017 (CDT), Nitride has already filed a patent infringement lawsuit with the U.S. District Court for the District of Minnesota against Digi-Key.


Nitride is a pioneer in the field of UV-LED. With Professor Shiro Sakai at Tokushima University (Japan), Nitride succeeded in development of highly efficient UV-LED in 2000 for the first time in the world and has continued to manufacture and sell UV-LED thereafter. Nitride has made a huge investment in R&D to develop and modify UV-LED, which has been quite challenging.


Nitride places its intellectual property rights as its vitally important management assets. Accordingly, Nitride will take resolute actions to against infringers whom Nitride found so in any country where appropriate and necessary to protect its patents and other intellectual property rights.


 

Micro LED Forum 2018

CEO Muramoto made an invited speech.

Presentation date:
July 12th, 2018 (10:30-11:00)
Venue:
NTUH International Convention Center
No. 2 Xuzho Road, Zhongzheng District (100), Taipei, Taiwan
Speaker:
Nitride Semiconductors Co., Ltd. CEO Yoshihiko Muramoto
Title:
Full Color Fluorescence Patterns Excited by UV-LED Micro Chip

 

guangzhou international lighting exhibition

CEO Muramoto made an invited speech.

Date:
June 9th to 12th, 2018
Presentation date:
June 11th, 2018 (15:00)
Venue:
China Import and Export Fair Complex
No. 380 Yuejiang Zhong Road, Haizhu District, Guangzhou, China
Speaker:
Nitride Semiconductors Co., Ltd. CEO Yoshihiko Muramoto
Title:
UV-LED is changing its stage from industry to home appliances

 

IR + UV EXPO 2018

We set up booth at IR + UV EXPO 2018.

Date:
25-27 April, 2018 10:00–17:00
Venue:
Pacifico Yokohama, Japan
Booth Number:
F-25
Organized by:
Japan Photonics Council

 

LED PURE by NITRIDE

Our showroom “LED PURE by NITRIDE” was opened in Shinjuku Park Tower on 20 April, 2018.

Location:
Shinjuku Park Tower 6F, 3-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo
Open hours:
10:30 – 19:00
Closed:
Wednesday, mid-summer and New Year's holidays

 

LED NEXT STAGE 2018

We set up booth at LED NEXT STAGE 2018.

Date:
6-9 March, 2018 10:00–17:00
(10:00-16:30 on the last day)
Venue:
Tokyo Big Sight, Tokyo
Booth Number:
LD1001 (West Hall 3/4)
Organized by:
Japan LED Association, Nikkei Inc.

booth

 

TOP


All Rights Reserved, Copyright© NITRIDE SEMICONDUCTORS .Co.,Ltd.