人物經歷
1992～1996 天津工業大學， 化學纖維專業， 獲學士學位。
1996～1999 天津工業大學， 材 料 學專業， 獲碩士學位。
2000～2003 日本山口大學， 環境共生工學專業， 獲博士學位。
2003～2007 日本山口大學工學部 博士後（VBL非常勤講師）。
2007～ 今 天津大學機械學院副教授，碩士生導師。
研究方向
1. PEM燃料電池。
2. 清潔能源技術。
3. 材料學。
4. 膜科學。
主要貢獻
學術成就
承擔和參加日本以及國家、部委課題多項，發表科技論文、會議論文60餘篇，其中SCI/EI收錄40餘篇，申請日本發明專利10餘項。
科研項目
1. 教育部博士點基金新教師基金， 直接甲醇燃料電池膜電極微觀界面接觸機理與巨觀性能研究，項目編號20090032120002，項目經費3.6萬元，2010.01-2012.12， 負責人。
2. 國家863計畫重點項目課題，複合材料零件高效加工技術及套用，項目編號2009AA044304，經費200萬元，2009.01-2010.12，項目參加人，天津大學負責人。
3. 國家自然科學基金重點項目， 基於環境能源的水下機器人多尺度性能驅動設計方法和動態自適應網路構建技術， 項目編號50835006，項目經費150萬元， 2009.01 - 2012.12， 第五承擔人。
4. 日本文部省自然科學基金青年基金，新型磺化聚醯亞胺膜的開發及其在質子交換膜燃料電池中的套用，項目編號17750205，項目經費20萬元，2005.6-2007.3，第一完成人。
主要論著
(1) Zhaoxia Hu, Yan Yin, Ken-ichi Okamoto, Yukari Moriyama, Atsushi Morikawa, Synthesis and characterization of sulfonated polyimides derived from 2,2’-bis(4-sulfophenyl)- 4,4’-oxydianiline as polymer electrolyte membranes for fuel cell applications, Journal of Membrane Science, 329 (2009) 146-152.（SCI 420WQ）。
(2) Zhaoxia Hu, Yan Yin, Kazuaki Yaguchi, Nobutaka Endo, Ken-ichi Okamoto, Synthesis and properties of sulfonated multiblock copolynaphthalimides, Polymer, 50(2009) 2933-2943.（SCI 463FN）。
(3) Xinbing Chen, Yan Yin, Pei Chen, Hidetoshi Kita，Ken-ichi Okamoto, Synthesis and properties of novel sulfonated polyimides derived from naphthalenic dianhydride for fuel cell application, Journal of Membrane Science, 313 (2008) 106-119.（SCI 291PI）。
(4) Shouwen Chen, Yan Yin, Hidetoshi Kita，Ken-ichi Okamoto, Synthesis and properties of sulfonated polyimides from homologous sulfonated diamines bearing bis(aminophenoxyphenyl)sulfone, Journal of Polymer Science, Part A: Polymer Chemistry, 45 (2007) 2797-2811.（SCI 179IE）。
(5) Zhaoxia Hu, Yan Yin, Hidetoshi Kita，Ken-ichi Okamoto, Yoshiki Suto, Hongyuan Wang, and Hironobu Kawasato, Synthesis and properties of novel sulfonated polyimides bearing sulfophenyl pendant groups for polymer electrolyte fuel cell application, Polymer, 48(7) (2007) 1962-1971.（SCI 154UA）。
(6) Yan Yin, Yoshiki Suto, Takaaki Sakabe, Shouwen Chen, Shunsuke Hayashi, Takashi Mishima, Otoo Yamada, Kazuhiro Tanaka, Hidetoshi Kita, Ken-ichi Okamoto, Water stability of sulfonated polyimide membranes, Macromolecules, 39 (2006) 1189-1198.（SCI 010ND）。
(7) Yan Yin, Otoo Yamada, Shunsuke Hayashi, Kazuhiro Tanaka, Hidetoshi Kita, Ken-ichi Okamoto, Chemically modified proton-conducting membranes based on sulfonated polyimides: improved water stability and fuel cell performance, Journal of Polymer Science, A: Polymer Chemistry, 44 (2006) 3751-3762.（SCI 048XU）。
(8) Yan Yin, Otoo Yamada, Kazuhiro Tanaka, and Ken-ichi Okamoto, On the development of naphthalene-based sulfonated polyimide membranes for fuel cell applications, Polymer Journal, 38 (2006) 197-219. （SCI 022TW）。
(9) Yan Yin, Shouwen Chen, Xiaoxia Guo, Jianhua Fang, Kazuhiro Tanaka, Hidetoshi Kita, and Ken-ichi Okamoto, Structure-property relationship of polyimides derived from sulfonated diamine isomers, High Performance Polymers, 18 (2006) 617-635. （SCI 093JH）。
(10) Yan Yin, Shunsuke Hayashi, Otoo Yamada, Hidetoshi Kita, Ken-ichi Okamoto, Branched/crosslinked sulfonated polyimide membranes for polymer electrolyte fuel cell, Macromolecular Rapid Communications, 26 (2005) 696-700.（SCI 927PC）。
(11) Yan Yin, Otoo Yamada, Yoshiki Suto, Takashi Mishima, Kazuhiro Tanaka, Hidetoshi Kita, Ken-ichi Okamoto, Synthesis and characterization of proton?conducting copolyimides bearing pendant sulfonic acid groups, Journal of Polymer Science, A: Polymer Chemistry, 43 (2005) 1545-1553.（SCI 911HK）。
(12) Ken-ichi Okamoto, Yan Yin, Otoo Yamada, Md. Nurul Islam, Tatsuaki Honda, Takashi Mishima, Yoshiki Suto, Kazuhiro Tanaka, Hidetoshi Kita, Methanol permeability and proton conductivity of sulfonated co-polyimide membranes, Journal of Membrane Science, 258 (2005) 115-122.（SCI 942QD）。
(13) Otoo Yamada, Yan Yin, Kazuhiro Tanaka, Hidetoshi Kita, Ken-ichi Okamoto,Polymer electrolyte fuel cells based on main-chain-type sulfonated polyimides,Electrochimica Acta, 50 (2005) 2655-2659. （SCI 920PQ ）。
(14) Yan Yin, Jianhua Fang, Tatsuya Watari, Kazuhiro Tanaka, Hidetoshi Kita, Ken-ichi Okamoto, Synthesis and properties of highly sulfonated proton conducting polyimides from bis(3-sulfopropoxy)benzidine diamines, Journal of Materials Chemistry, 14 (2004) 1062-1070.（SCI 801LA）。
(15)Yan Yin, Liming Yang, Makoto Yoshino, Jianhua Fang, Kazuhiro Tanaka, Hidetoshi Kita and Ken-ichi Okamoto, Synthesis and gas permeation properties of star-like poly(ethylene oxide)s using hyperbranched polyimide as central core,Polymer Journal, 36 (2004) 294-302.（SCI 826YX）。
(16) Yan Yin, Otoo Yamada, Jianhua Fang, Kazuhiro Tanaka, Hidetoshi Kita, Ken-ichi Okamoto, Polymer electrolyte membranes from novel sulfonated polyimides for direct methanol fuel cell, Transactions of the Materials Research Society of Japan 29 (2004) 1035-1038.
(17) Yan Yin, Jianhua Fang, Yongfang Cui, Kazuhiro Tanaka, Hidetoshi Kita, Ken-ichi Okamoto, Synthesis, proton conductivity and methanol permeability of a novel sulfonated polyimide from 3-(2',4'-diaminophenoxy)propane sulfonic acid, Polymer 44 (2003) 4509-4518.（SCI 701LJ）。
(18) Yan Yin, Jianhua Fang, Hidetoshi Kita, Ken-ichi Okamoto, Novel sulfoalkoxylated polyimide membrane for polymer electrolyte fuel cells, Chemistry Letters 32 (2003) 328-329.（SCI 672CJ）。
(19) 尹燕 , 崔永芳, 葛繼軍, 周花, 基膜改性的殼聚糖/聚丙烯腈滲透汽化中空纖維複合膜, 膜科學與技術, 21(2) (2001) 22-24.
(20) Jijun Ge, Yongfang Cui, Yin Yan and Wenyi Jiang ,The effect of structure on pervaporation of chitosan membrane, Journal of Membrane Science,165 (2000) 75-81. （SCI 274LD）。
