1 Introduction
2 Observations and Data Reduction
2.1 NIR grism spectroscopic observations with the AKARI/IRC
2.2 Data reduction
3 Results
3.1 General trend of spectra
3.2 Individual objects
4 Discussion
4.1 Advantages and limitations of the AKARI spectroscopic observations
4.2 Identification of the 3-μm band shape
4.3 Peak wavelength in the 2.7-μm band feature
4.4 Spectral slope in the 3-μm band
4.5 From dry to wet: characteristics of hydrated asteroids
5 Summary