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