This is a history of PPT group: come and go of members & main events.
| Year | Staff | Students | Events |
| 1999 | Prof.
Yoshihiro Arakawa Associate Prof. Kimiya Komurasaki |
Akira Kakami (M2) Norio Shimozono (B4) C. B. K. Jason(B4) |
Launch of PPT group. Development of injector using film boiling & injector using layer stack piezo actuator |
| 2000 | Prof.
Yoshihiro Arakawa Associate Prof. Kimiya Komurasaki |
Akira Kakami (D1) Hiroyuki Koizumi(M1) Kentaro Yoshimura (B4) |
Development of injector using solenoid actuator & injector using piezo. Discharge by Coaxial PPT. |
| 2001 | Prof.
Yoshihiro Arakawa Associate Prof. Kimiya Komurasaki |
Akira Kakami (D2) Hiroyuki Koizumi(M2) Ken Konishi(B4) Youhei Furuta(B4) |
Development of injector with small valve. Choice of some propellants. Design of thrust stand and Impulse measurement. |
| 2002 | Prof.
Yoshihiro Arakawa Associate Prof. Kimiya Komurasaki |
Akira Kakami (D3) Hiroyuki Koizumi(D1) Youhei Furuta(M1) Hiroki Takayanagi(B4) |
Performance study of LP-PPT. Improvement of a thrust stand. Observation of liquid injection by using arc strobe. |
| 2003 | Prof.
Yoshihiro Arakawa Associate Prof. Kimiya Komurasaki |
Hiroyuki Koizumi(D2) Youhei Furuta(M2) Youko Kawazoe(B4) |