QUADRICOLOR TECHNOLOGY has a total of 49 patent applications. Its first patent ever was published in 1977. It filed its patents most often in France, Belgium and Brazil. Its main competitors in its focus markets audio-visual technology, control and organic fine chemistry are FAROUDJA Y C, CHONO KEIICHI and YAMAMOTO TOMOYUKI.
# | Country | Total Patents | |
---|---|---|---|
#1 | France | 4 | |
#2 | Belgium | 3 | |
#3 | Brazil | 3 | |
#4 | Canada | 3 | |
#5 | Germany | 3 | |
#6 | Denmark | 3 | |
#7 | Spain | 3 | |
#8 | United Kingdom | 3 | |
#9 | Italy | 3 | |
#10 | Japan | 3 | |
#11 | Republic of Korea | 3 | |
#12 | Mexico | 3 | |
#13 | Netherlands | 3 | |
#14 | Norway | 3 | |
#15 | Sweden | 3 | |
#16 | United States | 3 |
# | Industry | |
---|---|---|
#1 | Audio-visual technology | |
#2 | Control | |
#3 | Organic fine chemistry | |
#4 | Machines |
# | Technology | |
---|---|---|
#1 | Television | |
#2 | Ticket-issuing devices | |
#3 | Unspecified technologies | |
#4 | Heterocyclic compounds | |
#5 | Special information storage |
# | Name | Total Patents |
---|---|---|
#1 | Richman Donald | 17 |
#2 | Richman D | 9 |
#3 | Donarudo Ritsuchiman | 3 |
#4 | Richmond Donald | 1 |
Publication | Filing date | Title |
---|---|---|
KR830000420A | Color television receiving system utilizing inferred high frequency signal components to reduce color infidelities in regions of color transitions | |
KR830000398A | Color television receiving system utilizing inferred high frequency signal components to reduce color infidelities in regions of high color saturation | |
KR830000399A | Color television receiving system utilizing multimode inferred highs correction to reduce color infidelities | |
US4183051A | Color television receiving system utilizing multimode inferred highs correction to reduce color infidelities | |
US4181917A | Color television receiving system utilizing inferred high frequency signal components to reduce color infidelities in regions of color transitions | |
US4245239A | Color television receiving system utilizing inferred high frequency signal components to reduce color infidelities in regions of high color saturation |