Our Creed
Central to the creed of Mitsubishi are three
principles which are as much a part of our
heritage as our vision:
- Corporate Social Responsibility: Enrich society, both materially and spiritually, while contributing towards the preservation of the global environment.
- Integrity and Fairness: Maintain principles of transparency and openness, conducting business with integrity and fairness.
- International Understanding through Trade: Expand business, based on a global perspective
The Mitsubishi Diamonds
Today, the Mitsubishi three-diamond logo is
recognized for excellence and quality all over
the world. But it got its start a very, very
long time ago in Japan. That legacy has
followed the Mitsubishi brand to America and
around the world.
Lore has it that Yataro Iwasaki, the founder of the old Mitsubishi organization chose the three-diamond mark as the emblem for the company. The icon is representative of the three-leaf crest of the Tosa Clan, whom Iwasaki worked for as a young man, and of the three stacked rhombuses of his own family crest.
The name "Mitsubishi" is a combination of the Japanese words "mitsu" meaning three and "hishi" used to denote a rhombus or diamond shape. Phonetically, the Japanese often bend the “h” sound to a "b" sound when it appears in the middle of a word, hence the pronunciation "Mit-su-bi-shi".

Lore has it that Yataro Iwasaki, the founder of the old Mitsubishi organization chose the three-diamond mark as the emblem for the company. The icon is representative of the three-leaf crest of the Tosa Clan, whom Iwasaki worked for as a young man, and of the three stacked rhombuses of his own family crest.
The name "Mitsubishi" is a combination of the Japanese words "mitsu" meaning three and "hishi" used to denote a rhombus or diamond shape. Phonetically, the Japanese often bend the “h” sound to a "b" sound when it appears in the middle of a word, hence the pronunciation "Mit-su-bi-shi".
