
Jia Yongjian
Partner · Foreign Patent Attorney
Profile
Jia Yongjian is a partner of the firm and a senior patent attorney as well as a trilingual Chinese-English-Japanese IP specialist. He holds a dual bachelor’s degree in mechanical engineering and Japanese from Dalian University of Technology, the Chinese patent attorney qualification and the Japanese Fundamental Information Technology Engineer certification. He has worked deeply in Chinese-English-Japanese patent translation and foreign-related patent practice, with a cumulative translation volume of over twenty million characters.
Practice Areas
· PCT international applications and national-phase entry (US / JP / EP / KR and others)
· Translation of foreign-related patent documents (Chinese, English, Japanese) and patent-family drafting
· Overseas filing strategy and patent-family management
· Responses to foreign office actions and patentability argumentation
· IP compliance and risk review for companies expanding abroad
Professional Background
Dual bachelor’s degree in mechanical engineering and Japanese from Dalian University of Technology; holds the Chinese patent attorney qualification and the Japanese Fundamental Information Technology Engineer certification. Language and translation credentials cover the three languages — JLPT N1 with full marks, J.TEST Special A grade, BJT Business Japanese J1+; CATTI Japanese Level 1 translation and Level 2 interpreting (Ministry of Human Resources and Social Security); certified by the Japan IP Translation Association as Chinese-Japanese translator Level 1 and English-Japanese mechanical translation Level 3, among others. He was a computer-systems engineer at Nippon Steel (2009–2011) and a dedicated Japanese-language patent attorney at China Patent Agent (H.K.) Ltd. (2012–2017); from 2017 to 2024 he worked as an independent professional in long-term cooperation with several leading Chinese agencies.
Representative Cases
· Cumulative translation volume of over twenty million characters (Chinese-Japanese, English-Chinese, Chinese-English, English-Japanese and Japanese-English)
· Has provided Japanese patent prosecution and translation services to Midea, ZTE, ByteDance, NEC, Geely Auto, GE, Alstom, Mitsubishi Electric, Seiko, Kyocera and Nippon Steel
· Japanese office-action cases for which he advised on the response achieved a 100% grant rate
(Further case details are available on request.)
Contact
For further information, please call +86 176 0560 8891 or email patent@zhihaiyida.com
