>Keiichi Okuyama The challenge to the Space of Aichi Univercityof Engineering, Gathering for friendly discussion in East Mikawa, hotel Arrk Rich toyohashi, October 19, 2010.
>Keiichi Okuyama, Tomohiro Ito, Jump out to deep space! Probe UNITEC-1 from a private sector, Gamagoori robot lecture meeting, February 27, 2010.
>Keiichi Okuyama, An earth gravitational field is exceeded and it is to deep space space. AUT culture lecture meeting, October 17, 2009.
>Keiichi Okuyama, Space development by the Tsuyama Kosen, Society of Instrument and Control Engineers Chugoku branch, Tsuyama, February 7, 2009. [Invited lecture]
>Keiichi Okuyama, Tip combined materials which reused carbon fiber reinforced plastics, Chugoku area technical college techno market, Institute of National Colleges of Technology, Japan, Hiroshima, December 5-6, 2008.
>Keiichi Okuyama, The Venus satellite made with the technology of Tsuyama and Okayama, Technology exchange plaza in Tuyama Kosen, New industry creation mechanism in Tuyama, September 2, 2008. [Invited lecture]
>Keiichi Okuyama, The hydrogen gas barrier property of the carbon fiber reinforced plastics strengthened with the argillite sheet, 3nd Industry, Univercity and government office research matching -Fusion of a dream Ceramic technology of the Chugoku-Shikoku area-, August 29, 2008. [Invited lecture]
>Hideaki Toriie, Takeshi Sugiura, Keiichi Okuyama, The local charitable activity of the graduation research student by a visiting lecture, National technical college mechanism sponsorship [ FY2008(H20)] educational teacher research meeting, National Center of Sciences , August 19-20, 2008.
>Keiichi Okuyama, The carbon / concrete combined-materials development using blast furnace slag and a waste plastic, Recycling technology seeds & needs dispatch meeting, Okayama, March 14, 2008.
>Keiichi Okuyama, Application to the earthquake-resistant construction of carbon fiber strengthening mortar, Environmental science technical symposium, Okayama University, January 18, 2008.
>Keiichi Okuyama, Development of the combined materials using carbon fiber and slag, Application to the spacecraft, the car, and earth quake-resistant construction of the material, environmental business messe in Okayama, November 8 , 2007. [Invited lecture]
> Keiichi Okuyama, Research on the carbon fiber strengthening mortar using blast furnace slag and a waste plastic, 2nd Industry, Univercity and government office research matching, September 7, 2007. [Invited lecture]
>Keiichi Okuyama, The heat protection system of a re-entry capsule, A space engineering seminar, Kyushu Institute of Technology (Tobata campus), October 20, 2005. [Invited lecture]
>Keiichi Okuyama, The heat characteristic of CFRP for atmospheric reentry machines, Super-high-temperature material symposium 18, Tokiwa Kosui hole (Ube), June 3-4, 2004.
>Keiichi OKUYAMA，Jan PERSSON，Thermal Analysis of Thermal Driven Flow Unit Experiment for the Second International Micro gravity Mission，ANSYS Conference，Japan，1993.