国内爆珠专利技术分析

  目的  综述爆珠领域技术特点及发展脉络。  方法  采用对比分析法和文献计量学等情报分析研究手段，以定性与定量分析相结合的方式对爆珠领域国内专利申请态势、主要申请人、专利技术分布及研发热点等进行了系统的分析，并以此给出了我国爆珠技术领域的总体研究趋势和国内的专利布局情况。  结果  ① 1986—2018年中国知识产权局公开/公告国内爆珠领域共计544件专利，从2013年起整体专利申请量和申请人数量呈现爆发式增长。②国内主要申请人为卷烟制造企业和卷烟辅料企业，国外申请人主要是跨国烟草公司，其专利申请已初具规模。③各技术分支发展不均衡，爆珠应用是该领域专利申请的热点，爆珠制备工艺中成型工艺申请较为集中；爆珠滴制、干燥设备以及成型机中爆珠进料装置在设备分支申请较为集中。④技术需求点主要集中在提高耐加工性、耐候性、稳定性、防止香料损失、受控释放等方面。⑤主要需求方专利申请覆盖面相对较窄，产品应用申请占比较大，分析检测技术方面专利申请量较少。 

Analysis of patent technology relevant to cigarette capsules in China

Objective]To summarize technical characteristics and development of the cigarette brittle capsule.Methods]China's patent application status on cigarette brittle capsule is analyzed using qualitative&quantitative analysis,comparative analysis approach and literature metrology.According to analysis of the patent application trend,the principal applicant,the distribution of patent technology and research focus,the trends and domestic patent layout on cigarette brittle capsule were acquired.Results]①A total of 544 patents related to cigarettes with brittle capsules were published by national intellectual property anministrarion from 1986 to 2018.There has been an explosive growth in patent applications and the number of applicants since 2013.②Cigarette manufacturing enterprises and accessories enterprises are the main domestic applicants.Transnational corporations are the mainly foreign applicants,of which the patent applications have taken shape.③Technical development in various branches remained out of balance.Application of cigarette brittle capsule was a hot spot in patent application.The patent applications are more concentrated in cigarette brittle capsule forming process.Equipment under patent application mainly include drop system,drying equipment and brittle capsules feeding device in filter rod shaping machine.④Techniques under patent application are mainly about improving processing resistance,weather resistance,stability,preventing spice loss,controlled release.⑤The demand-side patent application coverage is relatively narrow,the patent application on product application accounts for a large proportion,and the number of patent applications on analysis and testing technology is relatively small.