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Hiromichi Umebayashi, a PhD holder in applied physics, is Special Advisor, former President and Founder of the Peace Depot Inc., a non-profit organization based in Yokohama, Japan. He is also Visiting Professor and former Director of the RECNA (Research Center for Nuclear Weapons Abolition, Nagasaki University). He also serves as the Editor-in-Chief of Nuclear Weapons and Nuclear Tests Monitor, a bi-weekly Japanese publication which covers regional security and nuclear issues since 1995, and the East Asian Coordinator of the Parliamentarians for Nuclear Non-proliferation and Disarmament (PNND).

He is known as one of the key leaders of the well-known 1972 massive civil movement in Japan to resist the transportation of the U.S. Army tanks from the U.S. Army Sagami General Depot in Japan to the Vietnam War field. The non-violent civil resistance successfully stopped the tank transportation for 100 days. He also led as Chair the National Movement against the Deployment of US Cruise Missile Tomahawk in 1983 to 1992, while he joined in organizing the Pacific Campaign to Disarm the Seas (PCDS, later renamed Pacific Campaign for Disarmament and Security), a regional anti-nuke citizen group network covering eight countries in the Rim of the Pacific, in 1985. He served as its international coordinator for the period from 1990 to 2007. He was also instrumentally engaged in a human right movement gPeoplefs Solidarity between Japan and ROKh for democratization of ROK and saving Kim Dae-Jung during the period from 1976 to 1984.

The efforts of Peace Depot to establish a NEA-NWFZ under his leadership was awarded the 2007 Demilitarized Zone (DMZ) Province Peace Prize by Gangwon Province of South Korea, the only province in the Korean Peninsula which is situated in both North Korea and South Korea, divided by the DMZ. He and the Peace Depot also won 2008 Peace Prize of Japan Association of Peace Studies.

He studied solid state physics and received his doctorate in applied physics in Tokyo University. He taught at Tokyo Metropolitan Technical College but resigned from teaching in 1980, to become a fulltime campaigner and researcher for peace, disarmament and human rights issues.

He is the author of many books, including gComprehensive Approach to a Nuclear Weapon Free Zone in Northeast Asiah (in Japanese and English, Chief Editor, 2015), gNuclear Weapon Free Zone: A Way to a Nuclear Weapon Free Worldh (in Japanese, 2011), (in Korean, 2014), gThe Aim of the US Forces Realignmenth (in Japanese, an Iwanami Booklet, 2006), "A Northeast Asia Nuclear-Weapon Free Zone," (Co-editor, in Japanese and Korean, 2005), "Regional Security in Northeast Asia: From Rule of US Forces to Rule of Law" (Co-author, 2004), "The US Forces Japanh (in Japanese, an Iwanami Shinsho, 2002), "Nuclear Disarmament in 21st Century" (in Japanese, Co-author, 2000). He is also the Supervising Editor of the Year Book gNuclear Disarmament & Peace -- for Citizens and Local Authoritiesh (in Japanese) since 1998, and a frequent contributor to major Japanese newspaper and periodicals, including "Asahi", "Mainichi" and "Sekai".

Peace Depot
3-3-1-102, Minowa-cho, Kohoku-ku, Yokohama, 223-0051 Japan
TEL: 045-563-5101 FAX: 045-563-9907