Torch Electronics applies for patents related to the fabrication of tantalum capacitors, to produce high-reliability, high-voltage tantalum capacitors with high-temperature withstand and low resistance characteristics.

2026-04-10 06:23:55

April 2 News, the State Intellectual Property Office information shows that Fujian Torch Electronic Technology Co., Ltd. has applied for a patent titled “A Preparation Method for High-Reliability High-Voltage Non-Solid Tantalum Capacitor.” The application publication number is CN121768859A, the application number is CN202511820976.8, the publication date is March 31, 2026, the filing date is December 5, 2025, inventors are Wu Degui, Xu Kunfeng, Chen Yukun, Zhang Zishan, Lin Zhisheng, Wu Sijie, Li Mingpei, Lai Shuying, Zhong Jianyong, Cai Jinjun, patent agency is Quanzhou Jundian Patent Agency (General Partnership), patent attorney Wang Qingyan, classification numbers H01G9/035, H01G9/00, H01G9/145, H01G9/042, H01G13/00.

The patent abstract shows that a method for preparing a high-reliability high-voltage non-solid tantalum capacitor includes the following steps: Step 1, prepare electrolyte A and electrolyte B; Step 2, assemble and weld the tantalum shell, tantalum cap, tantalum core, PTFE separator, gasket, separator, and ruthenium oxide sheet, inject electrolyte A to fill the remaining space inside the tantalum block; Step 3, perform open aging of the capacitor at room temperature, extract aging gases, refill electrolyte A to re-fill the inside of the capacitor, then transfer to an oven for high-temperature open aging, extract aging gases; Step 4, place the capacitor in an oven, raise the temperature to expel free electrolyte inside, remove and naturally cool to room temperature, inject electrolyte B, weld the injection port; Step 5, perform high and low temperature performance tests on the welded capacitor, select high-reliability high-voltage non-solid tantalum capacitors; the capacitor prepared by this method has high voltage resistance, high temperature resistance, and low impedance characteristics.

Torch Electronics was established on December 20, 2007, and listed on the Shanghai Stock Exchange on January 26, 2015. Its registered and office address is in Quanzhou, Fujian Province. The company is a leading domestic MLCC manufacturer with a complete industrial chain, strong technical strength, and high investment value.

Torch Electronics mainly engages in the research and development, production, sales, testing, and service of electronic components, new materials, and related products. Its industry classification is National Defense Military Industry - Military Electronics II - Military Electronics III, involving concepts such as MLCC, ceramic materials, and military electronic concepts.

In 2025, Torch Electronics achieved operating revenue of 4.12B yuan, ranking 4th among 11 companies in the industry, higher than the industry average of 4.04B yuan and median of 2.21B yuan, but still below the top company AVIC Optoelectronics with 21.39B yuan and the second-ranked Aerospace Electrical with 5.82 billion yuan. Its main business revenue includes international trade at 2.53B yuan (61.43%), component sales at 1.36B yuan (33.08%), ceramic materials at 204 million yuan (4.96%), and others (supplementary) at 21.8567 million yuan (0.53%). Net profit in 2025 was 323 million yuan, ranking 3rd in the industry, above the industry average of 227 million yuan and median of 102 million yuan, but still with room for improvement compared to the top company AVIC Optoelectronics with 2.35 billion yuan and Hongming Electronics with 461 million yuan.

Recent patent applications by Fujian Torch Electronic Technology Co., Ltd. are as follows:

No.	Patent Name	Patent Type	Legal Status	Application Number	Application Date	Publication Number	Publication Date	Inventors
1	Sealed Module Capacitor and Its Manufacturing Method	Invention Patent	Substantive Examination Valid, Published	CN202610056325.4	2026-01-16	CN121601439A	2026-03-03	Zhu Jiangbin, Wu Yudong, Xu Chenhong, He Rongxi, Chen Yonghong, Lin Zhisheng, Zhang Zishan
2	Internal Micro Negative Pressure Non-Solid Tantalum Capacitor Manufacturing Method	Invention Patent	Substantive Examination Valid, Published	CN202511820978.7	2025-12-05	CN121601449A	2026-03-03	Wu Degui, Xu Kunfeng, Wu Sijie, Zhang Zishan, Lin Zhisheng, Chen Yukun, Li Mingpei, Lai Shuying, Zhong Jianyong, Cai Jinjun
3	High-Reliability High-Voltage Non-Solid Tantalum Capacitor Preparation Method	Invention Patent	Published	CN202511820976.8	2025-12-05	CN121768859A	2026-03-31	Wu Degui, Xu Kunfeng, Chen Yukun, Zhang Zishan, Lin Zhisheng, Wu Sijie, Li Mingpei, Lai Shuying, Zhong Jianyong, Cai Jinjun
4	Small-Size Series Capacitor and Manufacturing Method	Invention Patent	Substantive Examination Valid, Published	CN202511788151.2	2025-12-01	CN121506746A	2026-02-10	Wu Yudong, Lin Sen, Tang Changming, Xiong Junbin, Chen Yonghong, Lin Zhisheng
5	Sealed Capacitor Manufacturing Method	Invention Patent	Substantive Examination Valid, Published	CN202511768731.5	2025-11-28	CN121366806A	2026-01-20	Zhu Jiangbin, Zheng Huilu, Wu Yudong, Lin Sen, Liu Lihao, Chen Yonghong, Lin Zhisheng, Zhang Zishan
6	Low-Metal High-Voltage Multilayer Ceramic Dielectric Capacitor and Manufacturing Method	Invention Patent	Published	CN202511768732.X	2025-11-28	CN121565682A	2026-02-24	Hong Zhichao, Yu Qiao, Liu Bijing, Xiong Yuelong, Qiu Yuxin, Chen Yonghong, Lin Zhisheng
7	High-Voltage Multichannel Ceramic Capacitor and Its Manufacturing Method	Invention Patent	Substantive Examination Valid, Published	CN202511053661.5	2025-07-30	CN120878463A	2025-10-31	Zhu Jiangbin, Zheng Huilu, Lin Sen, Xu Chenhong, Wu Yudong, Liu Lihao, Chen Yonghong, Lin Zhisheng, Zhang Zishan
8	High Energy Density High-Voltage Pulse Power Ceramic Capacitor and Its Dielectric Material, Manufacturing Method	Invention Patent	Published	CN202511053657.9	2025-07-30	CN120954886A	2025-11-14	Zheng Mingwen, Wang Zheng, Liu Dengxian, Xiong Yuelong
9	Low-Metal Pulse Energy Storage Ceramic Capacitor and Its Dielectric Material, Manufacturing Method	Invention Patent	Substantive Examination Valid, Published	CN202510899734.6	2025-07-01	CN120698782A	2025-09-26	Chen Benxia, Lin Bingfeng, Lin Sen, Li Jiaqiu, Cai Zaiwei, Chen Yonghong
10	Low-Temperature, Low-Internal Resistance Supercapacitor and Its Electrolyte, Manufacturing Method	Invention Patent	Substantive Examination Valid, Published	CN202510681700.X	2025-05-26	CN120497056A	2025-08-15	Jiang Yaming, Lin Junhong, Lin Zhisheng, Cai Shuwei, Zhang Zishan, Cai Jinjun
11	Secure and Trusted Connection Method for Computing Power Center	Invention Patent	Substantive Examination Valid, Published	CN202510592078.5	2025-05-09	CN120165980A	2025-06-17	Wu Zhiqiang, Huang Junlin, Xiong Qingling, Chen Weiqiang, Wu Duanlan
12	High Capacitance, Low-Temperature Supercapacitor and Its Electrolyte, Manufacturing Process	Invention Patent	Substantive Examination Valid, Published	CN202510452081.7	2025-04-11	CN120261174A	2025-07-04	Lin Junhong, Jiang Yaming, Cai Shuwei, Cai Jinjun
13	High-Performance Supercapacitor and Its Manufacturing Process	Invention Patent	Substantive Examination Valid, Published	CN202510370125.1	2025-03-27	CN119964994A	2025-05-09	Chen Zhirong, Zhu Jianren, Lin Junhong, Huang Shaohui, Ye Yifa, Jiang Yaming, Chen Xiaoyin, Cai Shuwei
14	Method for Preparing Dry-Process Electrode Plate Based on Foamed Fiberization	Invention Patent	Substantive Examination Valid, Published	CN202411920080.2	2024-12-25	CN119724947A	2025-03-28	Jiang Yaming, Lin Junhong, Cai Shuwei, Chen Xiaoyin, Cai Jinjun
15	Testing Device for Pulsed Power Special Ceramic Dielectric Capacitor	Invention Patent	Authorized, Substantive Examination Valid, Published	CN202411890991.5	2024-12-20	CN119335304B	2025-05-02	Cai Yisong, Lin Chuan, Zhang Meigui, Xue Ruibin, Wang Yankai, Chen Qikun
16	Anti-Tinning Soldered Capacitor	Design Patent	Authorized	CN202430785728.4	2024-12-11	CN309398131S	2025-07-22	Wu Yudong, Lin Sen, Tang Changming, Chen Yaying, Zhu Jiangbin, Lin Zhisheng
17	Anti-Climbing Tinning Capacitor	Utility Model	Authorized	CN202423046994.9	2024-12-11	CN223582825U	2025-11-21	Wu Yudong, Lin Sen, Tang Changming, Chen Yaying, Zhu Jiangbin, Lin Zhisheng
18	Method for Detecting Electrode Defects at the End of MLCC	Invention Patent	Substantive Examination Valid, Published	CN202411620266.6	2024-11-14	CN119559138A	2025-03-04	Xue Ruibin, Huang Tingting, Zhou Haoyu, Tang Jianeng, Zhang Meigui, Yan Qingqiang, Liu Mengying, Zheng Chenghe, Gu Zhiwei
19	Method for Preparing Dry Electrode Plate	Invention Patent	Authorized	CN202411604885.6	2024-11-12	CN119208030B	2025-11-14	Lin Junhong, Jiang Yaming, Cai Shuwei, Chen Xiaoyin, Cai Jinjun
20	Multi-Channel Ceramic Capacitor and Its Manufacturing Method	Invention Patent	Substantive Examination Valid, Published	CN202411533633.9	2024-10-31	CN119400589A	2025-02-07	Zheng Huilu, Zhu Jiangbin, Cai Yuexuan, Chen Yaying, Wu Yudong
21	Multi-Channel Capacitor Welding Fixture	Design Patent	Authorized	CN202430687425.9	2024-10-31	CN309352852S	2025-06-24	Zheng Huilu, Cai Yuexuan, Chen Yaying, Wu Yudong, Zhu Jiangbin
22	Welding Fixture for Multi-Channel Capacitor	Utility Model	Authorized	CN202422637904.7	2024-10-31	CN223301167U	2025-09-05	Zheng Huilu, Chen Yaying, Cai Yuexuan, Wu Yudong, Zhu Jiangbin
23	Multi-Channel Pulsed Capacitor	Design Patent	Authorized	CN202430680969.2	2024-10-29	CN309329195S	2025-06-10	Zhu Jiangbin, Bai Longshan, Liu Lihao, Zheng Huilu
24	Frame for Multi-Channel Pulsed Capacitor	Utility Model	Authorized	CN202422608526.X	2024-10-29	CN223390379U	2025-09-26	Zhu Jiangbin, Bai Longshan, Liu Lihao, Zheng Huilu
25	Multi-Channel Pulsed Capacitor and Its Manufacturing Method	Invention Patent	Authorized	CN202411513933.0	2024-10-29	CN119252660B	2025-11-11	Zhu Jiangbin, Zheng Huilu, Bai Longshan, Wu Yudong, Lin Zhisheng, Zhang Zishan
26	Molding Process for Multi-Channel Molding Capacitor	Invention Patent	Substantive Examination Valid, Published	CN202411483051.4	2024-10-23	CN119049883A	2024-11-29	Zheng Huilu, Zhu Jiangbin, Cai Yuexuan, Chen Yaying, Wu Yudong
27	Molding Multi-Channel Ceramic Capacitor Frame (with Pins)	Design Patent	Authorized	CN202430668229.7	2024-10-23	CN309313720S	2025-05-30	Zheng Huilu, Chen Yaying, Cai Yuexuan, Wu Yudong, Zhu Jiangbin
28	Pin-Lead Molding Multi-Channel Capacitor	Utility Model	Authorized	CN202422562371.0	2024-10-23	CN223333653U	2025-09-12	Zheng Huilu, Cai Yuexuan, Chen Yaying, Wu Yudong, Zhu Jiangbin
29	BME High-Capacity Multilayer Ceramic Dielectric Capacitor and Its Use of Non-rare Earth Dielectric Ceramic Powder, Manufacturing Method	Invention Patent	Substantive Examination Valid, Published	CN202411435494.6	2024-10-15	CN119320272A	2025-01-17	Luo Peifu, Liao Yongyu, Zheng Mingwen, Hong Zhichao, Xiong Yuelong, Song Yunxiong, Chen Yonghong, Lin Zhisheng
30	Energy Storage Fabric Based on Micro Capacitor Manufacturing	Utility Model	Authorized	CN202422397139.6	2024-09-30	CN223245421U	2025-08-19	Zhu Jianren, Lin Junhong, Cai Shuwei, Chen Xiaoyin, Chen Zhirong, Li Jianxin, Huang Shaohui, Chen Yiting, Wang Shuyuan, Huang Zhihong
31	Micro Supercapacitor	Utility Model	Authorized	CN202422397130.5	2024-09-30	CN223245422U	2025-08-19	Zhu Jianren, Lin Junhong, Cai Shuwei, Chen Xiaoyin, Chen Zhirong, Li Jianxin, Huang Shaohui, Chen Yiting, Wang Shuyuan, Zheng Zhijie
32	Manufacturing Process of Micro Supercapacitor	Invention Patent	Authorized, Published	CN202411380480.9	2024-09-30	CN119028738B	2025-10-24	Zhu Jianren, Lin Junhong, Cai Shuwei, Chen Xiaoyin, Chen Zhirong, Li Jianxin, Huang Shaohui, Chen Yiting, Wang Shuyuan, Ye Yifa
33	Manufacturing Process of Energy Storage Fabric	Invention Patent	Authorized, Published	CN202411380479.6	2024-09-30	CN119008262B	2025-11-04	Zhu Jianren, Lin Junhong, Cai Shuwei, Chen Zhirong, Li Jianxin, Huang Shaohui, Chen Yiting, Wang Shuyuan, Chen Honglin
34	Capacitor Voltage Test Fixture	Design Patent	Authorized	CN202430620999.4	2024-09-29	CN309274061S	2025-05-06	Cai Yisong, Zhang Meigui, Lin Chuan
35	Capacitor Insulation Resistance Test Device	Design Patent	Authorized	CN202430620998.X	2024-09-29	CN309274060S	2025-05-06	Cai Yisong, Zhang Meigui, Lin Chuan
36	Chamfering Machine Quick Fastening Device	Design Patent	Authorized	CN202430621000.8	2024-09-29	CN309301558S	2025-05-23	Cai Yisong, Zhang Meigui, Lin Chuan
37	Pulsed Power Capacitor Voltage Resistance Test Device	Utility Model	Authorized	CN202422379093.5	2024-09-29	CN223284325U	2025-08-29	Cai Yisong, Zhang Meigui, Lin Chuan
38	Finished Product Welding Fixture (Pulse Molding Capacitor)	Design Patent	Authorized	CN202430615785.8	2024-09-27	CN309267168S	2025-05-02	Zhu Jiangbin, Wu Yudong, Bai Longshan, Zheng Huilu
39	Welding Fixture for Pulse Molding Capacitor	Utility Model	Authorized	CN202422359218.8	2024-09-27	CN223245424U	2025-08-19	Zhu Jiangbin, Bai Longshan, Wu Yudong, Zheng Huilu
40	Manufacturing Process of Pulse Molding Capacitor	Invention Patent	Authorized, Published	CN202411354004.X	2024-09-27	CN118969511B	2025-10-14	Zhu Jiangbin, Zheng Huilu, Bai Longshan, Wu Yudong, Lin Zhisheng, Zhang Zishan
41	Encapsulated Pulse Capacitor	Design Patent	Authorized	CN202430609186.5	2024-09-25	CN309268782S	2025-05-02	Zhu Jiangbin, Wu Yudong, Bai Longshan, Zheng Huilu
42	Impact-Resistant Pulse Capacitor	Utility Model	Authorized	CN202422333474.X	2024-09-25	CN223245417U	2025-08-19	Zhu Jiangbin, Bai Longshan, Wu Yudong, Zheng Huilu
43	Encapsulated Pulse Power Capacitor	Invention Patent	Authorized, Published	CN202411336821.2	2024-09-25	CN118942910B	2025-11-04	Zhu Jiangbin, Zheng Huilu, Bai Longshan, Wu Yudong, Lin Zhisheng, Zhang Zishan
44	High Dielectric Constant, High Resistance, Low Loss Pulse Power Capacitor and Its Dielectric Material, Manufacturing Process	Invention Patent	Authorized	CN202411323075.3	2024-09-23	CN119252661B	2025-11-11	Zheng Mingwen, Huang Shaopeng, Qiu Yuxin, Xiong Yuelong, Song Yunxiong, Chen Yonghong
45	Low Internal Resistance Lead-Type Supercapacitor	Utility Model	Authorized	CN202422244228.7	2024-09-13	CN223108693U	2025-07-15	Zhu Jianren, Lin Junhong, Li Jianxin, Chen Zhirong, Chen Yiting, Huang Shaohui, Zheng Zhijie, Wang Shuyuan, Chen Xiaoyin, Cai Shuwei
46	High-Performance Supercapacitor	Utility Model	Authorized	CN202422251002.X	2024-09-13	CN223167349U	2025-07-29	Lin Junhong, Zhu Jianren, Chen Zhirong, Li Jianxin, Huang Shaohui, Chen Yiting, Zheng Zhijie, Wang Shuyuan, Chen Xiaoyin, Cai Shuwei
47	Manufacturing Method for High-Performance Lead-Type Supercapacitor	Invention Patent	Authorized, Published	CN202411281891.2	2024-09-13	CN118919314B	2025-10-24	Zhu Jianren, Lin Junhong, Li Jianxin, Chen Zhirong, Chen Yiting, Huang Shaohui, Zheng Zhijie, Wang Shuyuan, Chen Xiaoyin, Cai Shuwei
48	Manufacturing Process of High-Performance Supercapacitor	Invention Patent	Authorized	CN202411281887.6	2024-09-13	CN119092313B	2025-11-11	Lin Junhong, Zhu Jianren, Chen Zhirong, Li Jianxin, Huang Shaohui, Chen Yiting, Zheng Zhijie, Wang Shuyuan, Chen Xiaoyin, Cai Shuwei
49	Composite Dielectric High-Voltage Multilayer Ceramic Capacitor and Its Manufacturing Process	Invention Patent	Authorized, Substantive Examination Valid, Published	CN202411203890.6	2024-08-30	CN118824737B	2025-10-24	Yu Qiao, Liao Yongyu, Xie Yilan, Hong Zhichao, Zhou Yongchang, Luo Peifu, Xiong Yuelong, Chen Yonghong, Song Yunxiong, Lin Zhisheng, Zhang Zishan
50	Temperature-Characteristic-Controllable Multilayer Ceramic Capacitor and Its Manufacturing Method	Invention Patent	Authorized, Published	CN202411203891.0	2024-08-30	CN119080490B	2025-11-04	Zhou Yongchang, Liao Yongyu, Hong Zhichao, Yu Qiao, Luo Peifu, Xiong Yuelong, Chen Yonghong, Song Yunxiong, Lin Zhisheng, Zhang Zishan

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