Hitachi’s latest patent activity reveals automotive tech and alternative energy focus
In 2014, Hitachi earned a total of 908 patent grants from the U.S. Patent and Trademark Office, the 38th-largest total of U.S. patents issued to any single entity. When the patent activities of its subsidiaries are taken into account, however, the entire Hitachi Group earned 2,108 U.S. patent grants during 2014, according to our research using Innography patent analytics. As with most of the high tech Companies We Follow, we’re noticing a lot of innovation in control units and data storage devices, as reflected by our research using Innography search tools and represented in the text cluster diagram shown to the right. Hitachi has a very strong patent portfolio in automotive battery tech and even owns more patents in this field than Toyota.