We have been exploring ways to apply the hydrogen-absorbing alloy technology for nickel-metal hydride batteries and the manufacturing expertise we have developed over the years to the field of hydrogen utilization, which has been attracting growing attention in recent times. In the hydrogen utilization sector, there is strong demand for hydrogen-storage alloys capable of safely storing large quantities of hydrogen. In response, we have developed rare earth-nickel AB5-type alloys and TiFe-type alloys with excellent hydrogen storage properties (hereinafter collectively referred to as "hydrogen-storage alloys").
We have filed for and hold patents related to hydrogen-storage alloys (hereinafter referred to as "our hydrogen-storage alloy patents"). The principal patents are listed in the table below.
We are providing this patent information for your reference. For any inquiries regarding these patents or licensing matters, please contact our Intellectual Property Department.

As noted above, we hold numerous patents (including pending applications) related to hydrogen-storage alloys both domestically and internationally. When purchasing hydrogen-storage alloys, we recommend that you confirm with your supplier in advance that the alloys in question do not infringe upon our hydrogen-storage alloy patents.

Please be aware that in regions where our hydrogen-storage alloy patents are in effect, the manufacture, sale, or any other use of hydrogen-storage alloys may potentially infringe upon our hydrogen-storage alloy patents, regardless of the intended purpose.