Hirohito Umezawa

Synthesis and Properties of 1-Methyl-4-{2-[4-(dimethylamino)phenyl]ethenyl}pyridinium p-Toluenesulfonate Derivatives with Isomorphous Crystal Structure

Hirohito Umezawa, Yoshihiro Mineno, Toru Odani et al. · Japanese Journal of Applied Physics · 2005 · 41 citations

Natural Sciences, Chemistry, Materials Science +10

Molecular design on substituted DAST derivatives for second-order nonlinear optics

Hirohito Umezawa, Kyoko TSUJI, Shuji Okada et al. · Optical Materials · 2002 · 36 citations

Natural Sciences, Chemistry, Physics +14

Development of DAST-derivative crystals for terahertz waves generation

Takeshi Matsukawa, Yoshinori Takahashi, Ryo Miyabara et al. · Journal of Crystal Growth · 2008 · 28 citations

Natural Sciences, Materials Science, Physics +12

New pyridinium–metal iodide complexes toward nonlinear optical materials

Hirohito Umezawa, Shuji Okada, Hachiro Nakanishi · Materials Letters · 2004 · 23 citations

Natural Sciences, Chemistry, Materials Science +12

Synthesis and Crystal Structures of Phenylethynylpyridinium Derivatives for Second-Order Nonlinear Optics

Hirohito Umezawa, Shuji Okada, Hidetoshi Oikawa et al. · Bulletin of the Chemical Society of Japan · 2005 · 22 citations · Full text

Natural Sciences, Chemistry, Physics +14