HOKKAIDO TANKO KISEN KABUSHIKI has a total of 18 patent applications. Its first patent ever was published in 1959. It filed its patents most often in Germany, France and United Kingdom. Its main competitors in its focus markets basic materials chemistry, macromolecular chemistry and polymers and organic fine chemistry are MARDEN ANSTALT, HOENIG MAX and DUENGEMITTEL TECHNIK A G.
# | Country | Total Patents | |
---|---|---|---|
#1 | Germany | 4 | |
#2 | France | 4 | |
#3 | United Kingdom | 4 | |
#4 | Canada | 3 | |
#5 | United States | 3 |
# | Industry | |
---|---|---|
#1 | Basic materials chemistry | |
#2 | Macromolecular chemistry and polymers | |
#3 | Organic fine chemistry | |
#4 | Chemical engineering |
# | Name | Total Patents |
---|---|---|
#1 | Higuchi Kozo | 8 |
#2 | Tsuyuguchi Michio | 7 |
#3 | Osa Tetsuro | 4 |
#4 | Ando Koji | 4 |
#5 | Kozo Higuchi | 3 |
#6 | Michio Tsuyuguchi | 3 |
#7 | Yonemoto Setsuko | 2 |
#8 | Tetsuro Osa | 2 |
#9 | Koji Ando | 2 |
#10 | Setsuko Yonemoto | 1 |
Publication | Filing date | Title |
---|---|---|
US3030412A | Method of manufacturing ammonium nitrohumate | |
US3114625A | Preventing reversion by the addition of nitro-humic acid or alkali salts thereof | |
GB886951A | Phosphate fertilizer composition and the method of manufacture thereof | |
US3153666A | Method for continuously producing nitrohumic acids | |
GB904953A | Method and apparatus for producing continuously nitrohumic acids | |
GB861897A | Process for the selective extraction of aromatic hydrocarbons from a mixture of both aromatic and non-aromatic hydrocarbons | |
CA683758A | Method of manufacturing ammonium nitrohumate | |
CA623414A | Phosphate fertilizer composition and the method of manufacture thereof | |
CA677145A | Method and apparatus for producing continuously nitrohumic acids |