Daikin Europe lifts patents on R32 in VRF systems


JAPAN/BELGIUM: Daikin Industries has waived its legal rights to a additional 120 R32 patents, together with 30 jointly held with Daikin Europe relating to the manufacture and sale of VRF in Europe.

The holder of a significant selection of patents governing the use of R32 in air conditioning techniques, this most up-to-date pledge of non-assertion of patents by Daikin usually means a total of 419 R32 patents can be utilized without having the want for prior authorization or written agreement from Daikin.

Daikin has been the major driver in the adoption of the flammable gasoline as a decrease GWP choice to R410A, launching its 1st R32 household machines in Japan in 2012. Given that then most air conditioning producers have adopted the A2L refrigerant in lesser techniques.

Delivering free of charge entry to its patents is witnessed as the most effective way to speed up the adoption of R32, specifically in the light-weight of even more regulatory pressures from forthcoming amendments to the European F-fuel polices and the wider world wide Kigali Modification.

In a statement, Daikin Europe explained: “Providing this free obtain will further more boost the use of the non-blended, one-element HFC-32 refrigerant in VRF units, which has a reduce international warming influence than R410A, the refrigerant conventionally employed in VRF programs.”

“Daikin comprehensively evaluates a huge selection of refrigerants and encourages the assortment of the suitable refrigerant for just about every application, and at this time considers HFC-32 to be the most suited refrigerant for VRF units,” claimed Martin Dieryckx, common supervisor at Daikin Europe’s Environmental Analysis Centre. 

The patents that Daikin Europe pledged not to assert contain these relating to the handle of compressor rotation speed and safety devices this sort of as refrigerant leakage sensors. 

“The pledge will make it less complicated for other air conditioning and heating makers to acquire VRF systems making use of HFC-32. Also, advertising the set up of protection techniques in equipment decreases the load on air conditioning installers to inspect gear,” explained Kazuhide Mizutani, general supervisor of EMEA Investigate Centre. 

The Japanese air conditioning manufacturer to start with granted free of charge entry to acquiring nations for 93 patents relating to air conditioners in 2011 and prolonged free of charge access to these around the globe in 2015. In 2019, it also extended its “Pledge for Non-assertion of Patents” to subsequently submitted patents. In 2021, pledged patents were more expanded to a complete of 299 patents.

Currently, far more than 160 million household and professional air conditioners are said to be applying R32 in 100 nations.

A checklist of the pledged patents and the details about the pledge is offered below.

Connected tales:

Daikin releases a lot more R32 patents1 July 2021
JAPAN: Daikin has released a even more 123 patents related to the manufacture and use of R32 refrigerant in air conditioners. Read more…

Daikin eases access to R32 patents – 1 July 2019
JAPAN: Daikin is seeking to even more ease the choose-up of R32 by granting free entry to all of its pledged patents filed due to the fact 2011. Read more…

Daikin offers cost-free obtain to R32 patents – 10 September 2015
JAPAN: In a transfer to really encourage the adoption of R32 refrigerant, Daikin is to present rival companies throughout the world totally free access to its patents. Read more…



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