Department of Chemical Engineering,
Kyoto University

Particle Technology

Last Update: April 20, 2019


18th April 2019. Group photo        18th April 2019. Welcome party
9th April 2019. PARTEC2019   9th April 2019. Prof Ghadiri at Nuremberg


 Research Topics
 Members of Laboratories
 Links to other WWW servers


Research in this chair is focused on the analysis of phenomena in particle handling processes and on the development of the methods for the rational handling of them.  Particles are widely used in various fields and the particle behavior varies complicatedly depending on the conditions; thus, a full understanding is needed from the viewpoint of the effective application of fine particles and for environmental protection.  In particular, for dry powder systems, i) analysis of dynamic behavior of particles, ii) control of particle adhesion, and iii) evaluation of the total property including the effect of static electricity should be investigated.


o Electrification of particles

Tribo-electrification of particles is a fundamental phenomenon occurring in powder handling processes, and the electrostatic force acting on particles significantly affects the particle behavior.  Therefore, the control of the charging is important for powder handling.  In addition, applications using charged particles have been widely developed, e.g. electro-photography, dry powder coating, and electrostatic separation.  Since dispersion, agglomeration, and transport of charged particles can be remotely controlled using electrostatic force, the development of new applications is expected.  To realize it, a correct understanding of the particle charging, charge distribution control, particle movement control, and relevant online measurement techniques are required.

 (1) Clarification of the mechanism of particle charging in a steady electric field.
 (2) Control of the movement of charged particles under an unsteady electric field with spatial and temporal variation.
 (3) Analysis of the simultaneous transfer of mass and charge in a powder bed.
 (4) Development of a high-accuracy measurement system for charge distribution of fine particles.

o Evaluation of Adhesion and flowability of particles

Particle-particle and particle-wall interaction forces are important factors directly affecting powder handling, and it is required to develop appropriate methods for measuring adhesive property between primary particles and between aggregate particles, and for evaluating the flowability.

 (1) Analysis of adhesive strength distributions in various complex fields.
 (2) Analysis of flowability profiles.

o Mechanical handling of nano and submicron particles

To produce highly functional products, the demand for using nano and submicron particles is increasing every year.  Particle adhesiveness increases with decreasing particle diameter and powder handling becomes more difficult.  In particular, for small particles less than 1 m in diameter, the problems are serious, and it is urgent to develop new techniques, as well as to analyze of the particle behavior.

 (1) Development of micro-feeder for nanoparticles using a shear vibration.
 (2) Development of a system for particle dispersion using an ultrasonic vibration and airflow.
 (3) Development of a pneumatic transport system for nanoparticles.


o Staff

o Professor: Shuji MATSUSAKA
o Technical Expert: Masatoshi YASUDA
o Secretary: Aya IMAKITA

o Research colleagues

o Researcher

o Students

o Doctor course

o Master course


o Under graduate
Sota KAI
Motohiro TSUBOTA

o Research student
Junyu Lu

o PhD
Takehiko HORIO (2017. 11)
Murino KOBAYAKAWA (2015. 3)
Yi-Hung LIU (2012. 3)

o ME
Masanori KISHIMOTO (2019. 3), Shun FUJII (2019. 3), Takumu KAWATA (2018. 3), Tomoki WAKISAKA (2018. 3), Yuta NAKANISHI (2017. 3), Eri TANAKA (2017. 3), Jian WANG (2017. 3), Daiki WATANUKI (2017. 3), Shiro KITAJIMA (2016. 3), Tatsumi UTANO (2016. 3), Seiya KIRIYAMA
(2015. 3), Atsushi NOGUCHI (2015. 3), Sho SATO (2015. 3), Megumi MIZUTANI (2014. 3), Shohei SHIRAISHI (2013. 3), Yusuke FUJII (2013. 3), Dan WEI (2013. 3), Junpei IYOTA (2012. 3), Takashi YAMAMOTO (2010.3)

o Graduates
Junya TABATA (2018. 3), Shuhei NISHIDA (2018. 3), Hiroki YAMAMOTO (2018. 3), Minami SODENAGA (2017. 3), Kazuaki HASHIMOTO (2017. 3), Kai YAMAMURA (2017. 3),  Takumu KAWATA (2016. 3), Yo OKADA (2015. 3), Eri TANAKA
(2015. 3), Ayumi FUJIMOTO (2014. 3), Koichi TAKEDA (2014. 3), Daisuke TOKITO (2014. 3), Kota KUBO (2013. 3), Mitsuhiro SAKATA (2013. 3), Megumi MIZUTANI (2012. 3), Daisuke HIRAMA (2011.3), Kazua SATOH (2011. 3)

o Leaving
(2016. 3)

o Visiting Researchers (over one month)


o Short-term exchange student

M2 Sumeng Bai from University of Melbourne


o Visiting research student

D3 Poom Bunchatheeravate from University of Florida (NSF-PIRE, project number NSF OISE 0968313)


o Post doctoral fellow

Dr. M. Imran Zainuddin from Malaysia (JST)


o Visiting researcher

Dr. Yanbin Jiang (Professor) from South China University of Technology (MEXT)


o Visiting researcher

Dr. Chi-Hwa Wang (Professor) from National University of Singapore (JSPS)

Other home pages related to powder technology

o Journal of the Society of Powder Technology, Japan
o The Association of Powder Process Industry and Engineering, Japan
o The Information Center of Particle Technology, Japan
o Hosokawa Powder Technology Foundation

Return to

 MATSUSAKA Home Page (Japanese)
 MATSUSAKA Home Page (English)
 Particle Technology Home pages (Japanese)
 Particle Technology Home pages (English)
 Chem. Eng. Home Page

For more information contact Shuji Matsusaka
E-mail :

27th December 2018. Year-end Party


27th November 2018. APT Distinguished Paper Award and Best Paper Award


10th April 2018. Welcome party                 26th April 2018. WCPT8. Florida
for new members

23rd March 2018. Winning a prize@@28rd March. 2018. Farewell Party
13th March 2018. Kagaku Kogaku@@19th March. 2018. President's Award
9th Jan. 2018. New-years Tea Party    23rd February 2018. Testimonial Dinner
11th November 2017. Reunion of 9koza at Cafe Arte
31st July 2017 APT. Taiwan@21st Sep. 2017. Kagaku Kogaku, Nagoya
13th June 2017 CES. Canada Dinner@ Certificate of Achievement
13th April 2017. Welcome party
for new members

14th March 2017. Farewell Party
22th February 2017. Testimonial Dinner
13th April 2016. Welcome party@@@@27th December 2016. Year-end party
for new members

9th April 2015. Welcome party@@@@@@@@ @25th September 2015. Awaji,
for new members

20th February 2015. Testimonial Dinner
6th April 2014. Welcome party for new members@ 26th December 2014. Year-end party
Welcome party for Soom from Univ. of Melbourne

10th April 2013. Welcome party for new members @‚Vth March 2013. Testimonial Dinner


22th February 2013. Testimonial Dinner


24th September 2012. Kanazawa Castle Park@25th September 2012. Kenroku-en Garden

16th April 2012. Welcome party for new members


October 2011.@Welcome party for Poom@@@@@   October 2011. Birthday party

from Univ. of Florida

27th September 2011, Ise-Jingu,