| 1977-04 |
Founded as Yamamoto Giken Kogyo, focusing on lathe part processing. |
| 1979-02 |
Launched an automation equipment design and manufacturing division. Developed and marketed the YM950, a standard autoloader. |
| 1980-04 |
Reorganized into Yamamoto Giken Co., Ltd. with a capital of 2 million yen, continuing lathe part processing. |
| 1982-06 |
Relocated the main factory from Toyokiyomachi, Toyohashi to Higashihosoyacho, Toyohashi for factory expansion. (Site: 1,880 m², Factory: 250 m²) |
| 1983-03 |
Developed and marketed the YDN130, an autoloader for 35NC lathes. |
| 1985-07 |
Expanded the Higashihosoya Factory by 200 m². |
| 1986-05 |
Developed and marketed the TR250H, an autoloader for rolling machines. |
| 1988-03 |
Developed and marketed the YM Torch Ranger TC-200P. |
| 1988-08 |
Expanded the Higashihosoya Factory office by 160 m². |
| 1988-10 |
Exited lathe part processing to focus on automation equipment. |
| 1989-05 |
Developed and marketed the YGR-100 series, a gantry loader robot for NC lathes. |
| 1989-06 |
Reorganized into Yamamoto Giken Co., Ltd. with an increase in capital to 10 million yen. |
| 1990-07 |
Expanded the Higashihosoya Factory by 170 m² (Total building area: 780 m²). |
| 1991-04 |
Developed and marketed the YM Tray Changer TC200PX, a trolley-based system. |
| 1991-05 |
Renamed the company to YMG Co., Ltd. |
| 1991-06 |
Began full-scale development of gantry loader robot systems for NC lathes, machining centers, and measurement systems. |
| 1992-07 |
Developed and marketed the palletizing robot system MY-55P. |
| 1994-08 |
Developed and marketed the YGR-500B, a gantry loader robot for heavy loads. |
| 1994-10 |
Developed and marketed the MagPick MRH-5, a magnet-type random hopper. |
| 1995-05 |
Relocated the headquarters and factory to Kumonoya-cho, Toyohashi City. |
| 1998-04 |
Developed and marketed the YGJ-2B, a small gantry J-loader. |
| 2005-11 |
Constructed the 2nd factory on-site (Factory area: 489 m²). |
| 2006-01 |
Acquired ISO 9001 certification. |
| 2010-08 |
Developed and marketed the SL-700, a modern swing-type autoloader. |
| 2013-11 |
Introduced 3D CAD. |
| 2013-11 |
Purchased an adjacent factory site (2,880 m²). |
| 2015-06 |
Constructed the 3rd factory (Factory area: 1,152 m²). |
| 2017-10 |
Developed and marketed the industry’s fastest gantry loader RUN-GLB (Travel speed: 300 m/min as of September 2017, company research). |
| 2017-12 |
Refreshed the company’s website. |
| 2018-01 |
Expanded the office building (Design and Development Department) by 260 m². |
| 2018-01 |
Purchased adjacent land (4,300 m²) for parking use. |
| 2018-04 |
Received the Monozukuri Grand Award from the Toyohashi Chamber of Commerce and Industry. |
| 2020-01 |
Registered as a FANUC Robot System Integrator. |
| 2020-02 |
Expanded the 3rd factory by 256 m² (Total factory area: 1,450 m²). |
| 2023-04 |
Opened the permanent exhibition space YMG CARRIER PARK. |
