Core Insights - A patent titled "A Stackable Board Card Assembly Device and Assembly Method" has been granted to multiple companies, indicating a focus on innovation in technology and manufacturing [1][2]. Company Summaries - Beijing Minna Star Technology Co., Ltd. was established in 2017, located in Beijing, primarily engaged in the manufacturing of railway, shipping, aerospace, and other transportation equipment, with a registered capital of 62.5625 million RMB. The company has invested in 10 enterprises and participated in 59 bidding projects, holding 18 trademark records and 329 patents [1]. - Beijing Guoyu Star Technology Co., Ltd. was founded in 2015, also in Beijing, focusing on technology promotion and application services, with a registered capital of 20 million RMB. The company has participated in 4 bidding projects and holds 185 patents [1]. - Anhui Minna Star Technology Co., Ltd. was established in 2018, located in Hefei, primarily engaged in telecommunications, broadcasting, and satellite transmission services, with a registered capital of 5 million RMB. The company holds 181 patents [2]. - Hainan Minna Star Technology Co., Ltd. was founded in 2017, located in Sanya, focusing on technology promotion and application services, with a registered capital of 65 million RMB. The company has invested in 1 enterprise and holds 182 patents [2]. - Shaanxi Guoyu Star Technology Co., Ltd. was established in 2018, located in Xi'an, primarily engaged in technology promotion and application services, with a registered capital of 10 million RMB. The company holds 147 patents [2].