Ushiku Daibutsu Upgrades Lightning Protection to Latest 'Lightning Sphere' Model

The lightning protection system at Higashi Hongan-ji Ushiku Daibutsu (Ushiku City, Ibaraki Prefecture, headed by Masahiro Maekawa) has utilized the 'PDCE' lightning suppression rod from Lightning Suppression Systems Inc. (Yokohama City, Kanagawa Prefecture, CEO Toshio Matsumoto) since August 2010. To analyze and evaluate the long-term internal aging of the product, the PDCE was removed with the cooperation of Ushiku Daibutsu and replaced with the state-of-the-art 'Lightning Sphere-ALB' model. (April 28, 2026)

Before PDCE Installation, the Bronze Buddha Itself Acted as a Lightning Rod

Since its completion in 1993, the metal Buddha served as a grounded lightning rod; however, lightning damage occurred approximately every three years. In 2010, internal electronics, including elevators, failed, requiring a week for recovery. Consequently, Lightning Suppression Systems' 'lightning-repelling' rod was introduced, and since then, no direct lightning strikes have occurred. For the company, founded in 2010, Ushiku Daibutsu was their very first installation site.

'Lightning Sphere' Features a Dual-Structure 3D Capacitor Design to Further Reduce Lightning Risk

'Lightning Sphere-ALB,' developed by the company in 2022, is an advanced model that further suppresses the 'upward streamers' that invite lightning strikes. The PDCE previously installed atop the Buddha will be used as a sample for future product development.

Lightning Sphere-ALB Installed on the World's Tallest Bronze Statue

Measuring approximately 40cm in height and weighing about 5kg, the device is made of stainless steel and polycarbonate. It is a Japanese-made product with patents acquired in Japan, Europe, the U.S., and China.

Lightning Suppression Systems Inc.

A specialized manufacturer of new-generation lightning rods protecting both buildings and equipment. Founded in 2010. Their 'PDCE Lightning Sphere' series, designed to prevent lightning accidents, supports the safety of social infrastructure, factories, outdoor sports facilities, and event venues in Japan. They hold over 120 intellectual property rights globally, and all products are made in Japan.