Analysis of Directed Technological Cross Impact Based on the Patent Co-classification
Received date: 2018-03-05
Online published: 2025-04-28
[Purpose/significance] It is different from the existing research literatures which focus on the technical relationships in specific technical fields, this paper aims at analyzing and predicting the directional cross impacts among various technologies and providing strategic support for the development of target technology and forecasting technological progress. [Method/process] Using the patent co-classification data of 35 technical fields in China, this paper calculated the directed cross impact values between 35 technical areas based on the patent cross impact analysis methods of Choi and others. Then, according to the impact value, the technical pairs were grouped, and cross impact network was built and changes of cross impact was analyzed. [Result/conclusion] There exists a high proportion of bias and one-way technology impact in the whole technology fields. Food chemistry (FOC) is the most influential technical field. Measurement (MEA) in the instrument field, electrical machinery, equipment, energy (EAE) and computer technology (COM) in the electrical engineering field, as well as basic materials chemistry (BMC) and material, metallurgy (MAM) in chemistry field are the core technology fields, locating at the core of the network.
Key words: patent co-classification; technical field; directed cross impact
Li Ruixi , Chen Xiangdong , Cui Yunxia , Cui Caixia . Analysis of Directed Technological Cross Impact Based on the Patent Co-classification[J]. Knowledge Management Forum, 2018 , 3(3) : 160 -171 . DOI: 10.13266/j.issn.2095-5472.2018.016
表1 IPC分类号与技术领域对照表 |
| 五大技术领域 | 编号 | 子技术 领域 | 缩写 | IPC分类号 |
| I 电气 工程 EE | 1 | 电气机械、设备、能源 | EAE | F21 H01B H01C H01F H01G H01H H01J H01K H01M H01R H01T H02 H05B H05C H05F H99Z |
| 2 | 视听技术 | AVT | G09F G09G G11B H04N3 H04N5 H04N9 H04N13 H04N15 H04N17 H04R H04S H05K | |
| 3 | 通讯 | TEL | G08C H01P H01Q H04B H04H H04J H04K H04M H04N1 H04N7 H04N11 H04Q | |
| 4 | 数字通讯 | DIG | H04L | |
| 5 | 基本通讯进程 | BCP | H03 | |
| 6 | 电脑技术 | COM | (G06 not G06Q) G11C G10L | |
| 7 | IT管理方法 | ITM | G06Q | |
| 8 | 半导体 | SEM | H01L | |
| II 仪器 IN | 9 | 光学 | OPT | G02 G03B G03C G03D G03F G03G G03H H01S |
| 10 | 测量 | MEA | G01B G01C G01D G01F G01G G01H G01J G01K G01L G01M (G01N not G01N33) G01P G01R G01S G01V G01W G04 G12B G99Z | |
| 11 | 生物材料分析 | ABM | G01N33 | |
| 12 | 控制 | CON | G05B G05D G05F G07 G08B G08G G09B G09C G09D | |
| 13 | 医药技术 | MED | A61B A61C A61D A61F A61G A61H A61J A61L A61M A61N H05G | |
| III 化学 CH | 14 | 有机精细化工 | OFC | (C07B C07C C07D C07F C07H C07J C40B) not A61K A61K8 A61Q |
| 15 | 生物技术 | BIO | (C07G C07K C12M C12N C12P C12Q C12R C12S) not A61K | |
| 16 | 药物 | PHA | A61K not A61K8 | |
| 17 | 高分子化学/ 聚合物 | MCP | C08B C08C C08F C08G C08H C08K C08L | |
| 18 | 食品化学 | FOC | A01H A21D A23B A23C A23D A23F A23G A23J A23K A23L C12C C12F C12G C12H C12J C13D C13F C13J C13K | |
| 19 | 基本材料化学 | BMC | A01N A01P C05 C06 C09B C09C C09F C09G C09H C09K C09D C09J C10B C10C C10F C10G C10H C10J C10K C10L C10M C10N C11B C11C C11D C99Z | |
| 20 | 材料、冶金 | MAM | C01 C03C C04 C21 C22 B22 | |
| 21 | 表面技术、涂层 | STC | B05C B05D B32 C23 C25 C30 | |
| 22 | 微结构和纳米 技术 | MSN | B81 B82 | |
| 23 | 化学工程 | CHE | B01B B01D000 B01D1 B01D2 B01D3 B01D41 B01D43 B01D57 B01D59 B01D6 B01D7 B01F B01J B01L B02C B03 B04 B05B B06B B07 B08 D06B D06C D06L F25J F26 C14C H05H | |
| 24 | 环境技术 | EVT | A62D B01D45 B01D46 B01D47 B01D49 B01D50 B01D51 B01D52 B01D53 B09 B65F C02 F01N F23G F23J G01T E01F8 A62C | |
| IV 机械 工程 CE | 25 | 处理 | HAN | B25J B65B B65C B65D B65G B65H B66 B67 |
| 26 | 机床 | MAT | B21 B23 B24 B26D B26F B27 B30 B25B B25C B25D B25F B25G B25H B26B | |
| 27 | 发动机、水泵、发电机 | EPT | F01B F01C F01D F01K F01L F01M F01P F02 F03 F04 F23R G21 F99Z | |
| 28 | 纺织和造纸机 | TPM | A41H A43D A46D C14B D01 D02 D03 D04B D04C D04G D04H D05 D06G D06H D06J D06M D06P D06Q D99Z B31 D21 B41 | |
| 29 | 其他特种加工机床 | OPM | A01B A01C A01D A01F A01G A01J A01K A01L A01M A21B A21C A22 A23N A23P B02B C12L C13C C13G C13H B28 B29 C03B C08J B99Z F41 F42 | |
| 30 | 热力加工和设备 | TPA | F22 F23B F23C F23D F23H F23K F23L F23M F23N F23Q F24 F25B F25C F27 F28 | |
| 31 | 机械零件 | MEE | F15 F16 F17 G05G | |
| 32 | 运输 | TRA | B60 B61 B62 B63B B63C B63G B63H B63J B64 | |
| V 其他 领域 OT | 33 | 家具、游戏 | FUG | A47 A63 |
| 34 | 其他消费品 | OCG | A24 A41B A41C A41D A41F A41G A42 A43B A43C A44 A45 A46B A62B B42 B43 D04D D07 G10B G10C G10D G10F G10G G10H G10K B44 B68 D06F D06N F25D A99Z | |
| 35 | 土木工程 | CIE | E02 E01B E01C E01D E01F1 E01F3 E01F5 E01F7 E01F9 E01F1 E01H E03 E04 E05 E06 E21 E99Z |
表2 技术对直接影响最大值 |
| 组别 | $\mathrm{ }{\mathrm{I}}_{\mathrm{i}\to \mathrm{j}}$ | 技术i | 受影响总值 | 技术j | 影响总值 | 技术k | $\mathrm{ }{\mathrm{I}}_{\mathrm{j}\to \mathrm{k}}$ |
| 1 | 0.165 0 | EPT | 1.866 2 | EAE | 0.631 4 | MAM | 0.157 0 |
| 2 | 0.241 6 | TEL | 0.985 5 | AVT | 0.148 5 | TEL | 0.362 0 |
| 3 | 0.535 9 | DIG | 1.867 8 | TEL | 0.069 0 | DIG | 0.384 3 |
| 4 | 0.503 6 | ITM | 1.479 8 | DIG | 0.045 6 | TEL | 0.535 9 |
| 5 | 0.027 7 | DIG | 0.160 6 | BCP | 0.156 9 | TEL | 0.183 4 |
| 6 | 0.306 3 | DIG | 1.696 9 | COM | 0.212 5 | DIG | 0.230 1 |
| 7 | 0.225 3 | TPA | 0.455 8 | ITM | 0.281 0 | DIG | 0.503 6 |
| 8 | 0.154 0 | OPT | 0.647 8 | SEM | 0.512 7 | STC | 0.194 9 |
| 9 | 0.171 1 | SEM | 0.795 5 | OPT | 0.252 9 | AVT | 0.203 4 |
| 10 | 0.330 0 | MSN | 2.149 4 | MEA | 0.606 5 | COM | 0.140 8 |
| 11 | 0.095 8 | BIO | 0.321 8 | ABM | 0.661 4 | BIO | 0.305 9 |
| 12 | 0.197 1 | ITM | 1.132 0 | CON | 0.314 9 | COM | 0.176 1 |
| 13 | 0.147 1 | PHA | 0.711 1 | MED | 0.648 5 | COM | 0.135 0 |
| 14 | 0.207 4 | CHE | 0.600 9 | OFC | 0.920 8 | PHA | 0.343 9 |
| 15 | 0.305 9 | ABM | 0.708 5 | BIO | 0.938 8 | PHA | 0.279 0 |
| 16 | 0.417 5 | FOC | 1.398 8 | PHA | 0.876 1 | FOC | 0.394 9 |
| 17 | 0.218 4 | OPM | 1.169 9 | MCP | 0.932 2 | OPM | 0.366 6 |
| 18 | 0.394 9 | PHA | 0.948 9 | FOC | 0.996 0 | PHA | 0.417 5 |
| 19 | 0.185 4 | OFC | 1.578 8 | BMC | 0.874 2 | MCP | 0.210 4 |
| 20 | 0.226 0 | EVT | 1.784 7 | MAM | 0.868 8 | MSN | 0.208 9 |
| 21 | 0.194 9 | SEM | 1.248 5 | STC | 0.829 0 | MAM | 0.205 3 |
| 22 | 0.208 9 | MAM | 0.541 9 | MSN | 0.364 8 | MEA | 0.330 0 |
| 23 | 0.244 3 | TPM | 1.688 9 | CHE | 0.934 3 | EVT | 0.254 0 |
| 24 | 0.254 0 | CHE | 0.976 3 | EVT | 0.960 4 | MAM | 0.226 0 |
| 25 | 0.070 1 | MAT | 0.628 5 | HAN | 0.809 6 | MAT | 0.112 2 |
| 26 | 0.112 2 | HAN | 0.832 2 | MAT | 0.804 8 | MAM | 0.214 1 |
| 27 | 0.075 5 | TPA | 0.436 9 | EPT | 0.745 8 | EAE | 0.165 0 |
| 28 | 0.134 5 | OCG | 0.586 9 | TPM | 0.908 0 | CHE | 0.244 3 |
| 29 | 0.366 6 | MCP | 1.756 8 | OPM | 0.915 1 | MCP | 0.218 4 |
| 30 | 0.124 3 | EPT | 0.606 8 | TPA | 0.628 4 | ITM | 0.225 3 |
| 31 | 0.158 7 | EPT | 0.941 6 | MEE | 0.840 1 | MAT | 0.104 9 |
| 32 | 0.085 9 | MEE | 0.607 1 | TRA | 0.641 6 | EAE | 0.139 6 |
| 33 | 0.064 2 | MED | 0.327 6 | FUG | 0.842 9 | MED | 0.107 0 |
| 34 | 0.082 7 | TPM | 0.489 2 | OCG | 0.872 5 | TPM | 0.134 5 |
| 35 | 0.097 6 | TRA | 0.870 1 | CIE | 0.848 8 | OPM | 0.128 4 |
李瑞茜: 构思论文、查找处理数据并撰写论文;
陈向东: 提出有益的论文修改建议;
崔云霞: 查找专利数据;
崔彩霞: 查找专利数据。
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