From Racing Technology to Environmental Technology YGK Co., LTD. provides High Thermal Efficiency Gas Engines YGK Co., LTD. Official Home Page



Company Profile

Business Philosophy

As a development company specializing in general gas engines, we utilize Japanese craftmanship and technology in world racing fields to the further environmental technology.

Company Profile

Company Name

Head Office
2-7-13 Higashi yamagata, Yamagata city, Yamagata 990-0022, Japan
TEL 023-642-2222 / FAX 023-642-2224

Branch Office

→around map here

Yellow Magic Division(Car sales and repair)

2-7-13 Higashi yamagata, Yamagata city, Yamagata 990-0022, Japan TEL 023-635-0456  FAX 023-642-2224

→around map here


Tel03-5763-5081 Fax 03-5763-5082

Company Organization
President: Masahiro Yamazaki
Executive officer /Chief engineering advisor Masayoshi Hayashi
Executive officer/Chief strategy officer Hideyuki Nakagawa
Yellow Magic Division Yuji Takahara

June, 1980

328,825,000 yen

Accounting Period

YGK has improved high thermal efficiency which means fuel efficiency, high durability and low environmental burden type of our engines for endurance race competitions. This technology was refined in the racing field with the assistance of Dr. Yoshimasa Hayashi EngD, and now has been utilized for general purpose industrial equipment (generators, co-generators and heat pumps) specified LPG/Biomass fuels. We endeavor to satisfy your requirements.

Sep 1994 Club Yellow Magic registered as a FIA/JAF participating member.
Oct 1995 5th place in the Ferrari 348 Challenge Italian Race.
Apr 1998 Yellow Magic Division first established.
Production started on an experimental vehicle, development code 2001, and baseline design of YR40 engine.
1997-1999 F-355 participated in the Japan GT Championship (JGTC) GT-300 Class series.
Feb 2000 Participated in the Daytona 24 Hour race in the USA, experimented on a code 2001 vehicle and YR40.
Apr 2000 Concluded a business collaboration with Fiat Auto Japan in the Super Taikyu series N-PLUS and started a development experiment on core parts of YR20.
Aug 2000 Started sales and repairs of Ferrari and Maserati as a subcontract factory of Corns and Company Limited.
An experimental vehicle, development code 2001, participated in International Suzuka 1000km race.
Feb 2001 Participated in the USA Daytona 24 hour race. Resulted overall 30th and 17th in class.
Jul 2001 Low Environmental Impact Engine Development Certified under Law for Facilitating the Creation of New Business by the Ministry
of Economy, Trade and Industry.
Aug 2001 Completion of final experiment on YR40 in International Suzuka 1000km race. Resulted in the 3rd place in INT-GT class.
Oct 2002 LMP Vehicle made by YGK debut at the Petit Le Mans, Road Atlanta.
Dec 2004 YR40 engine technology awarded by The Japan Society of Mechanical Engineers.
May 2005 Execution of a technology and business collaboration agreement with a major steel company.
Development of the engines specified in LPG.
Sep 2005 High Efficiency Gas Engine Co-generation Research Development was promoted to the Strategic developmental Business for
Rationalization in Energy Consumption of 2005 by the New Energy and Industrial Technology Development Organization
Mar 2006 Execution of joint development agreement for home co-generation unit with a major city gas company.
Completed YL08 engine development.
Oct 2007 Execution of production rights and distribution rights assignment agreement for 1kw home co-generator with a major gas appliances company.
Jun 2008 Participated in the 24 hours of Le Mans race in France as an engine supplier.
Sep 2009 Started development of Micro Gas Engine YL01(balcony and pole installation type)Generators.
Jun 2011 Dr. Masayoshi Hayashi EngD received Spirit of Le Mans award.
Jul 2011 Exhaust Energy Recovery hybrid system was approved by FIA/ACO
Jul 2013 Exhaust Energy Recovery hybrid system was approved in Europe and the US.
Nov 2017 Accepted as a first full member of Japan Land Engine Manufacturers Association