"Sho Ikeda,Sang_yeop Lee,Tatsuya Kamimura,Hiroyuki Ito,Noboru Ishihara,Kazuya Masu","A Sub-1mW Class-C-VCO-Based Low Voltage PLL with Ultra-Low-Power Digitally-Calibrated ILFD in 65nm CMOS",,"IEICE TRANSACTIONS on Electronics","The Institute of Electronics, Information and Communication Engineers","Vol. E97-C","no. 6","p. 495-504",2014,June
"Sho Ikeda,Tatsuya Kamimura,Sangyeop Lee,Hiroyuki Ito,Noboru Ishihara,Kazuya Masu","A 950?W 5.5-GHz Low Voltage PLL with Digitally-Calibrated ILFD and Linearized Varactor","The 19th Asia and South Pacific Design Automation Conference",,,,,"pp. 23-24",2014,Jan.
"Sho Ikeda,Tatsuya Kamimura,Sangyeop Lee,Hiroyuki Ito,Noboru Ishihara,Kazuya Masu","A Transformer-Based Current-Reuse QVCO with a Capacitor Coupling Technique in 180 nm CMOS","European Microwave Integrated Circuits Conference 2013",,,,,"pp. 93-96",2013,Oct.
"池田 翔,上村 龍也,李 尚曄,伊藤 浩之,石原 昇,益 一哉","デジタル自動校正付き注入同期型分周器および線形バラクタを用いた低電圧位相同期回路","電子情報通信学会2013ソサイエティ大会",,,,,"pp. C-12-34",2013,Sept.
"Sho Ikeda,Sang_yeop Lee,Tatsuya Kamimura,Hiroyuki Ito,Noboru Ishihara,Kazuya Masu","Fractionally Injection-Locked Frequency Multiplication Technique with Multi-Phase Ring Voltage-Controlled Oscillator",,"Japanese Journal of Applied Physics",,"Vol. 52","no. 4","p. 04CE15-1 - 04CE15-6",2013,Apr.
"池田翔,上村龍也,李尚曄,金丸法史,伊藤浩之,石原昇,益一哉","注入同期型分周器およびC級動作VCOを用いた0.5V位相同期回路","電子情報通信学会2013総合大会, エレクトロニクスソサイエティ",,,,,,2013,Mar.
"Sangyeop Lee,Tatsuya Kamimura,Shin Yonezawa,Atsushi Shirane,Sho Ikeda,Hiroyuki Ito,Noboru Ishihara,Kazuya Masu","A Multi-Band Quadrature Clock Generator With High-Pass-Filtered Pulse Injection Technique",,"IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS",,"Vol. 23","No. 2","pp. 96-98",2013,Feb.
"Sho Ikeda,Tatsuya Kamimura,Sangyeop Lee,Hiroyuki Ito,Noboru Ishihara,Kazuya Masu","A Sub-1mW 5.5-GHz PLL with Digitally-Calibrated ILFD and Linearized Varactor for Low Supply Voltage Operation","IEEE Radio Frequency Integrated Circuit 2013",,,,,,2013,
"Sangyeop Lee,Norifumi Kanemaru,Sho Ikeda,Tatsuya Kamimura,Satoru Tanoi,Hiroyuki Ito,Noboru Ishihara,Kazuya Masu","A Ring-VCO-Based Injection-Locked Frequency Multiplier with Novel Pulse Generation Technique in 65nm CMOS",,"IEICE Transactions",,"Vol. E95-C","no. 10","p. 1589-1597",2012,Oct.
"Sho Ikeda,Sangyeop Lee,Tatsuya Kamimura,Hiroyuki Ito,Noboru Ishihara,Kazuya Masu","Fractionally Injection-Locked Frequency Multiplication Technique with Multi-Phase Ring VCO","2012 Int. Conf. on Solid State Devices and Materials (SSDM 2012)",,,,,,2012,Sept.
"池田 翔,上村 龍也,李 尚曄,田野井 聡,伊藤 浩之,石原 昇,益一哉","容量結合を用いた超低電圧トランスフォーマー型直交電圧制御発振器","第2種研究会・LSIとシステムのワークショップ2012",,,,,,2012,May
"Tatsuya Kamimura,Sang-yeop Lee,Satoru Tanoi,Hiroyuki Ito,Noboru Ishihara,Kazuya Masu","0.1 V 13 GHz Transformer-Based Quadrature Voltage-Controlled Oscillator with a Capacitor Coupling Technique in 90 nm Complementary Metal Oxide Semiconductor",,"Japanese Journal of Applied Physics",,"Vol. 51","  4","pp. 04DE04-04DE04-6",2012,Apr.
"Sho Ikeda,Tatsuya Kamimura,Sangyeop Lee,Norifumi Kanemaru,Hiroyuki Ito,Noboru Ishihara,Kazuya Masu","A 0.5-V 5.5-GHz Class-C-VCO-Based PLL with Ultra-Low-Power ILFD in 65 nm CMOS","IEEE Asian Solid-State Circuits Conference 2012",,,,,,2012,
"Norifumi Kanemaru,Sho Ikeda,Tatsuya Kamimura,Sang_yeop Lee,Satoru Tanoi,Hiroyuki Ito,Noboru Ishihara,Kazuya Masu","A Ring-VCO-Based Injection-Locked Frequency Multiplier Using a New Pulse Generation Technique in 65 nm CMOS","International SoC Design Conference 2011 (ISOCC2011)","International SoC Design Conference 2011 (ISOCC2011)","International SoC Design Conference 2011 (ISOCC2011)",,,"pp. 32-35",2011,Nov.
"Tatsuya Kamimura,Sang_yeop Lee,Satoru Tanoi,Hiroyuki Ito,Noboru Ishihara,Kazuya Masu","A 0.1-V 13-GHz Transformer-Based Quadrature VCO with a Capacitor Coupling Technique in 90nm CMOS","the 2011 International Conference on Solid State Devices and Materials","Extended Abstracts of the 2011 International Conference on Solid State Devices and Materials","the 2011 International Conference on Solid State Devices and Materials",,,"pp. 1061-1062",2011,Sept.
"上村 龍也,李 尚曄,田野井 聡,伊藤 浩之,石原 昇,益 一哉","パルス信号注入同期を用いた低位相雑音電圧制御発振器の検討","LSIとシステムのワークショップ2011","LSIとシステムのワークショップ2011","LSIとシステムのワークショップ2011",,,"pp. 248-250",2011,May
"李 尚曄,上村 龍也,天川 修平,石原 昇,益 一哉","注入同期を用いた低位相雑音リングVCO型PLL","2010 年電子情報通信学会エレクトロニクスソサイエティ大会","2010 年電子情報通信学会エレクトロニクスソサイエティ大会","2010 年電子情報通信学会エレクトロニクスソサイエティ大会",,,"pp. 97",2010,Sept.
"上村 龍也,李 尚曄,田野井 聡,天川 修平,石原 昇,益 一哉","注入同期を用いたスケーラブル広帯域リング型電圧制御発振器回路","2010 年電子情報通信学会エレクトロニクスソサイエティ大会","2010 年電子情報通信学会エレクトロニクスソサイエティ大会","2010 年電子情報通信学会エレクトロニクスソサイエティ大会",,,"pp. 93",2010,Sept.