Development of “Upward-lighting Multicolor LEDs”: small, high brightness LED packages that have an improved color mixing property

In recent years, applications for illumination in game devices, keyboards for personal computers and amusement devices have been expanding. The number of devices that contain a lens and light guide to create a complicated lighting expression has increased. With this background, smaller, high-brightness LEDs are required, and good color mixing properties when more than two dies are lighted simultaneously, is an important factor so as not to damage the design and functionality of the device. Through our unique packaging technology based on high-density packaging, we have realized a high color mixing property which conventional packages were unable to achieve. Downsizing and high-brightness are also achieved enabling customers to use a wide variety of expressions they require.Enabling the use of a wide variety of expressions related to products Citizen Electronics Co., Ltd (Head Office: Fujiyoshida City, Yamanashi Prefecture. President: Sekiguchi Kanetaka) has developed upward-lighting multicolor LEDs in the “CL-V501 Series,” that have realized a better color mixing property as well as being small and high in brightness. Shipment of samples is expected to start from October 2021, and shipment of mass production is expected to start from January 2022. Background for development Multicolor LEDs have three dies of R...
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U.S. Patent Granted to Nichia, Mitsubishi Chemical, NIMS and Citizen Electronics for LEDs Using Nitride-type Red Phosphor

Four Japanese companies, Nichia, Mitsubishi Chemical Corporation (MCC), Citizen and National Institute for Materials Science (NIMS), reported that they have been granted in the U.S. the patent (U.S. patent No. 10,072,207) to LEDs using a nitride-type red phosphor*.
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EVERLIGHT Sued Nichia, Citizen and Daiko for Patent Infringement

EVERLIGHT Electronics Co., Ltd. on April 25, 2017 filed its complaints with Tokyo District Court against Nichia Corporation, Citizen Electronics Co., Ltd. and Daiko Electronics Co., Ltd. for patent infringement.
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Citizen Develops World’s Thinnest Multi-Color LED with Reflector

Citizen Electronics Co., Ltd. (Head Office: Fujiyoshida City, Yamanashi Prefecture. President: Yoshihiro Gohta) has developed the CL-426 Series that is the world’s thinnest side-lighting type multi-color LED with a reflector.  Shipment of samples will start in July 2015. 
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Citizen Showcases Prototype COB LED at Thailand Lighting Show

Japanese LED chip manufacturer Citizen booth might have been the furthest from the show entrance at LED Expo Thailand this year, but its prototype LED COB and AC LED modules attracted a steady stream of visitors towards its booth.
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Citizen Launches LED Packages for Lighting

Citizen Electronics Co., Ltd. (Head Office: Fujiyoshida City, Yamanashi Prefecture. President: Yoshihiro Gohta) has developed LED packages for lighting (207 models in total), ‘COB *1 Series, Version 4,’ that provide the world’s highest level of luminous efficacy.  The products will be exhibited during the ‘LIGHTFAIR INTERNATIONAL 2015’ in New York, U.S. from May 5, 2015.
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Hong Kong Lighting Fair 2009: Japan and Korea Leading Brands

LEDinside took a close eye on LED component suppliers of Japan and Korea leading brands at this fair. Nichia
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SCI is appointed by Citizen as ASEAN distributor

Citizen Electronics of Japan appoints Supreme Components International (SCI) of Singapore as their official distributor for High Brightness LED for ASIAN market. Citizen electronics has been producing LEDs since 1983 and is a major player for mobile phone LED in the world with significant market share. Citizen LEDs have high reliability and high CRI.
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Citizen Plans to Bolster LED Research, Targets Lighting Market

Citizen Holdings Co., a Japanese maker of watches and industrial machinery, plans to increase the number of research workers dedicated to light-emitting diodes as the devices replace incandescent bulbs in homes and offices. The company will allocate almost half its research employees of about 200 to LED development as soon as possible, rising from 10 percent now, Mitsuyuki Kanamori, who was appointed president of Tokyo-based Citizen on April 1, said in a Bloomberg Television interview broadcast today.
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New TARA2000-AUT-SAFE family includes unique interlock loop method for completely safeguarding ultra-fast detection of faults that can compromise eye safety Interlock method reduces bill of materials resulting in lower system cost 940nm emitte... READ MORE

40V-150V breakdown voltage lineup: ideal for motor drive and industrial power supplies ROHM has developed Nch MOSFETs (40V/60V/80V/100V/150V) RS6xxxxBx / RH6xxxxBx series, 13 part numbers, suitable for applications operating on 24V/36V/48V pow... READ MORE