(54) Sakae Tsuda: What is antifreeze protein? 74th annual meeting of the society for biotechnology Japan (SBJ202), Online, Osaka, Japan, Oct 18th, 2022.

(53) Sakae Tsuda: Fish ice-binding proteins differently function at higher concentrations. IBP 2022 international meeting, Online-hybrid, Kingston, Canada. Aug. 2nd, 2022.

(52) Sakae Tsuda: New technologies utilizing antifreeze protein, STEAM Library -A Japanese online school -(https://www.steam-library.go.jp/content/150), Interview (https://www.steam-library.go.jp/lectures/983) (in Japanese), Online. Feb. 4th, 2022.

(51) Sakae Tsuda: What is antifreeze protein? -from structural analysis to practical application-.61st Life science summer seminar, Online, Japan. Aug. 27th, 2021

(50) Sakae Tsuda: Discovery of the hyperactive antifreeze protein from a Japanese stag beetle, IBP International seminar series 2021-2022, Online (https://www.youtube.com/playlist?list=PLf9IkKOQ_-IItGI8SWXm7ExxtjyFiT_Yd), Jul. 28th, 2021.

(49) Sakae Tsuda: Antifreeze protein and Ice -How does water freezes? -. Cryopreservation conference 2021, Online, Japan. Nov. 12nd, 2021.

(48) Sakae Tsuda: Practical use of new quality products of antifreeze protein. Analytix-2019, Berlin, Germany. Nov. 13th, 2019.

(47) Sakae Tsuda: Ice recrystallization is efficiently terminated by antifreeze protein-binding to multiple ice planes. CRYO2019, SanDiego, USA. July 23rd, 2019.

(46) Sakae Tsuda: A goal of the research project of antifreeze protein -how can we utilize it? Science Forum Tokyo meeting, Tokyo, Japan. Feb 27th, 2019.

(45) Sakae Tsuda: Application of new quality products of type I-III antifreeze proteins and antifreeze glycoprotein. 11th Europian Biosimillars Congress, Rome, Italy. Apr 26th, 2018.

(44) Sakae Tsuda: A new type I antifreeze protein BpAFP undergoes oloigomerization to bind to whole surface of an ice crystal. 2nd Int. Conference on Bioscience, London, UK. Jun 19th, 2017.

(43) Sakae Tsuda: Antifreeze Science. 3rd meeting of the Low-temperature science community, Tokyo, JPN. Jan 20th, 2017.

(42) Sakae Tsuda: New cell-preservation technique utilizing extremely purified antifreeze protein. Cryopreservation Conference 2016, Okazaki, JPN. Nov.10th, 2016.

(41) Sakae Tsuda：Mass preparation of fish antifreeze protein. 4th International conference on Bioprocess and Bio Therapeutics (Bioprocess 2016). Houston, USA. Oct 21st, 2016.

(40) Sakae Tsuda：Structure of antifreeze protein –Ice binding mechanism and its application-. 2016 Annual meeting of the vacuum society of Japan. Sapporo, JPN. Oct 6th, 2016.

(39) Sakae Tsuda：What is antifreeze protein? – Ice binding function operated by different structural motifs –. Special seminar at the Osaka University. Osaka, JPN. Nov 5th, 2016.

(38) Sakae Tsuda: Development of cell-preservation technique on the basis of the functional analysis of antifreeze protein. Cryopreservation Conference 2014, Okazaki, JPN. Oct 24th, 2014.

(37) Sakae Tsuda* : The membrane-binding ability of fish IBP prolongs the life-time of a cell dramatically. 2nd International Ice-Binding Protein Conference (IBP2014), Sapporo, JPN. Aug 7th. 2014. (*the host-organizer).

(36) Sakae Tsuda: Development of new cryotechnologies utilizing the antifreeze protein. 1st Open facility symposium of Hokkaido University. Sapporo, JPN. Mar 10th, 2014.

(34) Sakae Tsuda : Analysis of Molecular Mechanism of Antifreeze Protein for its Applicational Use. Training for Technical Staffs employed in Universities & Intitutes of Hokkaido in 2013. Sapporo, JPN Aug.27th. 2013

(33) Sakae Tsuda : Antifreeze Protein from Japanese Organisms : Functional Analysis for the Genarl Use. 50th Annual Meeting of the Society for Cryobiology (CRYO2013). Washington D.C. USA Jul 29th. 2013.

(32) Sakae Tsuda : Antifreeze protein -Applicational aspect in cryotechnlogy, The Science Forum in Tokyo, "Application of antifreeze protein in industry - Milestone for the practical use of the protein -". JPN. Feb 14th. 2013.

(31) Sakae Tsuda : Analysis of structure and function of a new fungal antifreeze protein, 2012 Industrial technology seminar in Hirosaki. JPN. Dec 13th. 2012.

(30) Sakae Tsuda : Functional analysis of antifreeze protein and its industrial appications, 2012 Industrial technology seminar in Yonago. JPN. Dec 7th. 2012.

(29) Sakae Tsuda : Study of antifreeze protein and its industrial appications, 9th Meeting of industrial innovation utilizing Methane-hydrate. JPN. Nov 5th. 2012.

(28) Sakae Tsuda : Applications of antifreeze proteins in food industry, Nihon-Syokuhin-Kougyou Club. JPN. Apr 24th. 2012.

(27) Sakae Tsuda : Mass preparation and technological developments of antifrreze protein, 2012 training for new AIST researchers, Tsukuba, JPN. Apr 11th. 2012.

(26) Sakae Tsuda : Recent technological developments utilizing antifreeze protein, 1st International Ice-Binding Protein (IBP) conference and workshop, Kingston (ON), CAN. Aug 6th, 2011.

(25) Sakae Tsuda : New technologies utilizing the functions of antifreeze protein, 12th Annual Meeting of Japanese Society of Extremophiles, Tsukuba, JPN. Jun.13th, 2011.

(24) Sakae Tsuda : Functional analyses of antifreeze protein and its practical applications, 65th Annual Meeting of Japanese Society of Enzyme Engineering, Kyoto, JPN. Apr.22th, 2011.

(23) Sakae Tsuda : NEW TECHNOLOGIES UTILIING ANTIFREEZE PROTEIN, 12th INTERNATIONAL CONFERENCE ON THE PHYSICS AND CHEMISTRY OF ICE (PCI-2010), Sapporo, JPN. Sep.10th, 2010.

(22) Sakae Tsuda : Molecular analyses of antifreeze protein for its industrial applications, 5th alliance seminar for methane-hydrate research laboratory of AIST, Sapporo, JPN. Sep.2nd, 2010.

(21) Sakae Tsuda : Functional analyses of antifreeze protein for a new technology, 10th annual meeting of protein science society of Japan, Sapporo, JPN. Jun.16th, 2010.

(20) Sakae Tsuda : Structure and function analyses of antifreeze protein for a novel technology, Annual Seminar for the national newtron diffraction center of Ibaraki prefecture, Ibaraki, JPN. Mar 25th, 2010.

(19) Sakae Tsuda : Analysis of antifreeze function for technological application, Annual seminar held at Division of Engineering for Composite Functions in Muroran Institute of Technology, Muroran, JPN. Nov 11th, 2009.

(18) Sakae Tsuda : Functional analysis of antifreeze protein and its application to food technologies, 56th Annual Meeting of the Japanese Society for Food Science and Technology, Nagoya, JPN. Sep 12th, 2009.

(17) Sakae Tsuda : New technologies developed for practical use of antifreeze protein, 46th Annual Meeting of the Society for Cryobiology (CRYO2009), Sapporo, JPN. Jul 20th. 2009.

(16) Sakae Tsuda : Development of practical freezing techniques by using antifreeze protein, AIST Forum in Nagoya, JPN. Dec 5th, 2007.

(15) Sakae Tsuda : Saving of the freezing energy by utilizing antifreeze protein, Kyusyu University WS-Forum "Current situation and future aspects of protein and peptides, Fukuoka, JPN. Nov 2nd,2007.

(14) Sakae Tsuda : Antifreeze Protein from Japanese Fish: An epoch in biotechnology」, The 234th American Chemical Society Meeting - Antifreeze Proteins: A Memorial Synposium for Robert Feeney. (*Program assigned to 'Division of Computers in Chemistry'), Boston, USA. Aug 19th, 2007.

(13) Sakae Tsuda : Antifreeze Protein - from functional analysis to technological applications-, 2nd International Symposium on the Environmental Physiology of Ectotherms and Plants (ISEPEP2) . Duniden, NZ. Jul 2nd, 2007.

(12) Sakae Tsuda : Functions of antifreeze protein (AFP) and its practical use in industry, Food Technology Forum, Tokyo, JPN. Apr 21st, 2006.

(11) Sakae Tsuda : A special gift from nothern nature - antifreeze protein -, A forum for the citizen of Sapporo, Sapporo, JPN. Nov 26th, 2005.

(10) Sakae Tsuda : Biotechnology utilizing Japan-original antifreeze protein, 2005 AIST Life Science Meeting, Fukuoka, JPN. Mar 3rd, 2005.

(9) Sakae Tsuda : Antifreeze Protein - from structural basis to industrial application -, Hokkaido University Sousei-kagaku seminar, Sapporo, JPN. Oct 12th, 2004.

(8) Sakae Tsuda : Antifreeze Protein - from structural basis to industrial application -, AIST-Korea Joint Workshop, Sapporo, JPN. Jun 29th, 2004.

(7) Sakae Tsuda : Antifreeze Protein from Japanese Fish, The 30th. Annual Meeting of the Japan Society for Low Temperature Medicine, Sapporo, JPN. Nov 29th, 2003.

(6) Sakae Tsuda : Antifreze Protein from Japanese Fish - application for tissue preservation -, 2nd Hokkaido Marine Bioscience Symposium, Sapporo, JPN. Oct 31st, 2003.

(5) Sakae Tsuda : Three-Dimensional Structure of Fish Antifreeze Protein and its Industrial Applications, 2003 AIST Life Science Meeting, Sapporo, JPN. Sep 18th, 2003.

(4) Sakae Tsuda : Antifreeze Protein - from structural basis to industrial application -, 2003 Annual Meeting of Japanese Society for Cryobiology and Cryotechnology, Sapporo, JPN. Jun 26th, 2003.

(3) Sakae Tsuda : Antifreeze Protein from Japanese Organisms, 3rd Annual meeting of Japanese Society for Protein Science, Sapporo, JPN. Jun 24th, 2003.

(2) Sakae Tsuda : Japanese Antifreeze Proteins, Symposium on Stress Proteins: From Antifreeze to Heat Shock.California, USA. Jun 26th, 2003.

(1) Sakae Tsuda and Yoshiyuki Nishimiya : Cold Adaptation of Arctic Fish - Expression of Ice binding Protein -, Seminar at the Institute for Protein Research in Osaka University, Osaka, JPN. Mar 11th, 2003.