Masaki Takata / Professor / Division of Transdisciplinary Sciences
Department of Advanced Materials Science / Group of Functional Materials Science / Synchrotron Radiation Materials Science

Career Summary
1982: B.Sc. Materials Science, Hiroshima University
1984: M.Sc. Materials Science, Hiroshima University
1988: D.Sc. Materials Science, Hiroshima University
1987-1997: Assistant Professor, Nagoya University
1992-1992: Guest Scientist, Aarhus University (Denmark)
1993-1997: Lecturer, Fujita Health University
1997-1999: Associate Professor, Shimane University
1999-2003: Associate Professor, Nagoya University
2003-Present: Chief Scientist, Japan Synchrotron Radiation Research Institute/SPring-8
2006- Present: Chief Scientist, RIKEN SPring-8 Center
2007-Present: Professor, University of Tokyo
Educational Activities
Graduate School: Synchrotron Radiation Materials Science
Research Activities
Accurate Charge Density Study of Novel Materials by the Maximum Entropy Method using Synchrotron Radiation Powder Data (1990-2007):
In our laboratory, we are pursuing research into the relationship between electron density level structure and properties of novel functional materials by using charge density mapping that employs the maximum entropy method (MEM). In order to discover the nature of bonding of atoms and molecules in materials, we are developing an advanced SR powder diffraction method using a high-brilliance beam of SPring-8 and a sophisticated analytical method for mapping charge density that is similar to the MEM/Rietveld method.

1) M. Takata, B. Umeda, E. Nishibori, M. Sakata, Y. Saito, M. Ohno and H. Shinohara: Confirmation by X-ray Diffraction of the Endohedral Nature of the Metallofullerene Y@C82, Nature, 377 (1995) 46-49
2) R. Kitaura, S. Kitagawa, Y. Kubota, T.C. Kobayashi, K. Kindo, Y. Mita, A. Matsuo, M. Kobayashi, H. Chang, T.C. Ozawa, M. Suzuki, M. Sakata and M. Takata: Formation of a One-Dimensional Array of Oxygen in a Microporous Metal-Organic Solid, Science, 298 (2002) 2358-2361

Other Activities
Membership of Academic Societies:
The Physical Society of Japan, The Crystallographic Society of Japan, The Japan Institute of Metals, The Japanese Society for Synchrotron Radiation Research, Spring-8 User Society, The Fullerenes and Nanotubes Research Society, and The Japan Society of High Pressure Science and Technology

Councilor of the Crystallographic Society of Japan 1999-2005
Councilor of the Japanese Society for Synchrotron Radiation Research
Member of the Institute of Materials Structure Sciences (IMSS) / High Energy Accelerator Research Organization (KEK) Steering Committee
Member of the IUCr 2008 Organizing Committee
Member of the Ultraviolet Synchrotron Orbital Radiation Facility (UVSOR) / Institute for Molecular Science (IMS) Steering Committee
Member of the X-ray Free Electron Laser (XFEL) Application Promotion Council

The Crystallographic Society of Japan Award (1998)
The 6th Physical Society of Japan Award for Paper (2001)
The Hyogo Spring-8 Award (2004)

Future Plan
We are applying time-resolved charge density mapping on a picosecond scale to determine the mechanisms of photo-induced phase transition, gas adsorption, etc. The application of MEM charge density mapping to protein molecules is our second target.

Messages to Students
Each of you will most likely experience both excitement and difficulty in pushing the boundaries of scientific discovery at this university and graduate school. These experiences will enable you to take a significant step forward in undertaking new challenges. I sincerely hope that you will be a leader who strives to extend the frontiers of your research field.