Koga, Y.

• Carbon Dioxide Laser Desorption/Ionization Mass Spectrometry of a Mixture of s-Triazine Oligomers Analyzed by a Method which Assumes a Pattern of Chemical Formulae
  H. Togashi, Y. Koga, Y. Kakudate, S. Fujiwara, M. Kubota, K. Fukuda, H. Nakagawa, and M. Kawaguchi
  [Rapid Communications in Mass Spectrometry, Vol.8, No.6, pp.465-470, 1994]

• Role of Coulomb Energy in Promoting Collisionally Activated Dissociation of Multiply Charged Peptides Formed by Electrospray Ionization
  K. Ishikawa, T. Nishimura, Y. Koga, and Y. Niwa
  [Rapid Commun. Mass Spectrom., Vol.8, No.12, pp.933-938, 1994]

• Ionic Clusters of Triazine Derivatives Produced by Matrix-Assisted N₂ Laser Desorption and CO₂ Laser Desorption
  H. Togashi, Y. Koga, Y. Kakudate, K. Ishikawa, S. Fujiwara, Y. Niwa, M. Kubota, K. Fukuda, F. Kokai, H. Nakagawa, M. Kawaguchi, and R. B. Heimann
  [Trans. Mat. Res. Soc. Jpn., Vol.17, pp.229-232, 1994]

• Laser-Ionization Mass-Spectrometric Studies on Laser Ablation of a Nitrogen-Rich Polymer at 532nm and 1064nm
  F. Kokai, Y. Koga, Y. Kakudate, M. Fujiwara, and K. Fukuda
  [Appl. Phys. A, Vol.59, pp.299-304, 1994]

• Aggregative Behavior of Poly(ethylene oxide) in Water and Methanol
  S. Kinugasa, H. Nakahara, N. Fudagawa, and Y. Koga
  [Macromolecules, Vol.27, No.23, pp.6889-6892, 1994]