1. Endo T, Kitagawa R, Kabeya H, Hirotsu T (1998) Solid-phase compounding for cellulose and polyethylene glycol. Abstracts of the 48th Annual Meeting of the Japan Wood Research Society, Shizuoka, p 367
2. Endo T, Hirotsu T, Hosokawa J (1999) Novel microparticle aggregate of natural polymer and method for manufacturing the same. Japan Patent 2979135 (Applied on March 4, 1997)
3. Endo T, Kitagawa R, Zhang F, Hirotsu T, Hosokawa J (1999) Mechano-chemical preparation of novel cellulose-poly(ethylene glycol) composite. Chem Lett 1155-1156
4. Endo T (2000) Mechano-chemical preparation of novel cellulose composite. Cell Commun 7:63-66
5. Kondo T, Morita M, Hayakawa K, Onda Y (2004) The wet pulverization method for polysaccharide. Japan Patent Publication Unexamined 2005-270891 (Applied on March 26, 2004)