Passing of Our Founder and Chairman, Kensuke Isshiki

We are deeply saddened to announce that Kensuke Isshiki, patent attorney, Founder and Chairman of Isshiki Patent & Trademark Firm, passed away on September 8, 2026, at the age of 84.

We would like to express our sincere gratitude for the kindness and support extended to him throughout his life.

Since founding the firm in 1976, Kensuke devoted himself to its growth and development. All of us at the firm remain committed to carrying forward the values and principles that he instilled in us. We will continue to serve our clients with the same dedication and commitment.

The wake and funeral services have been held. We are deeply grateful for the many expressions of sympathy and condolence we have received.

September 16, 2026

Isshiki Patent & Trademark Firm

Kazuo Isshiki
Managing Partner