Communicate according to the spinach principle.

Or how we speak plain language.

How do we keep getting better in line with our Driven by Quality claim? By talking about it! We don't mean about what is already good. That would be boring. We mean talking about what's wrong - directly with the supervisor.

But now psychology comes into play: People don't really trust themselves. That's why we live Ho-Ren-So - our communication principle of always speaking plainly. Everyone is allowed, indeed expected, to pass on errors and grievances to the "top" without further ado - so that their elimination becomes an accelerated matter for the boss.

Ho-Ren-So is an acronym made up of three words that also describe the process chain.

  • Hokoku: Report the problem - immediately, accurately, factually.
  • Renraku: Contact the next level - openly, fearlessly, confidently.
  • Sodan: Consult - within the management team and in close exchange with your employees to solve the problem quickly.

Ho-Ren-So is a mix of bottom-up and top-down. It is not only applied when solving problems. Rather, the principle is also used to create transparency and promote the exchange of information. Because when it comes to quality, there is no either-or.


At a glance.


Foundation of DENSO Corporation


Employees worldwide

$47,9 bn

Consolidated net sales fiscal year 2022



Stock Exchange Listing Tokyo, Osaka & Nagoya


Subsidiaries worldwide


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