1
Osamu Nakaji, Seisuke Takashima, Seishiro Nakamura: Method of and system for treating waste anesthetic gas. Kuraray, Oblon Fisher Spivak McClelland & Maier, March 31, 1981: US04259303 (25 worldwide citation)

The present invention provides a method of treating a waste anesthetic gas by contacting the laughing gas contained in the waste anesthetic gas with a catalyst comprising one or more metal oxides selected from the group consisting of ferric oxide, cobalt oxide, cupric oxide, chromium oxide, manganes ...


2
Toshihide Nakashima, Osamu Nakaji, Koichi Takakura, Takayoshi Suzuki: Wound covering material. Kuraray, Yamanouchi Pharmaceutical, Oblon Fisher Spivak McClelland & Maier, September 1, 1981: US04287177 (12 worldwide citation)

The present invention provides a covering material consisting essentially of a hydrophilic, water insoluble polymer (component A), a high boiling plasticizer and/or organic solvent (component B) for said component A, and an aqueous liquid (component C). Said covering material is useful as a protecti ...