Inventor · disambiguated record
Yutaka Iizuka
Also filed as: IIZUKA YUTAKA
19 granted patents·1 pending application·478 citations·filing 1973–2005
95Inventor score
Top patents by PatentIndex Score
20 records- 0194US5021892AImage processing device of multifunctional typeSHARP KK·Filed 1989·Granted Jun 4, 1991·146 cites·6 claims
- 0287US4666259ACatadioptric telephoto lensNIPPON KOGAKU KK·Filed 1985·Granted May 19, 1987·66 cites·13 claims
- 0386US4910607AImage processing device of multifunctional typeSHARP KK·Filed 1987·Granted Mar 20, 1990·53 cites·5 claims
- 0481US4584367AReactive disazo compoundNIPPON KAYAKU KK·Filed 1982·Granted Apr 22, 1986·16 cites·3 claims
- 0581US4453945AProcess for dyeing cellulose fibers of its union fibers with reactive triazinyl dye quaternized with nicotinic acidNIPPON KAYAKU KK·Filed 1983·Granted Jun 12, 1984·28 cites·8 claims
- 0680US4519686AFocusing screen of a cameraNIPPON KOGAKU KK·Filed 1983·Granted May 28, 1985·20 cites·8 claims
- 0770US4231649AViewfinder display in a single lens reflex cameraNIPPON KOGAKU KK·Filed 1979·Granted Nov 4, 1980·7 cites·9 claims
- 0869US4348090AInverted Galilean finderNIPPON KOGAKU KK·Filed 1981·Granted Sep 7, 1982·23 cites·5 claims
- 0966US4010150ARed copper complexes of disazo compounds containing triazine groupsNIPPON KAYAKU KK·Filed 1973·Granted Mar 1, 1977·7 cites·3 claims
- 1064US4437734ALenses capable of close-up photographyNIPPON KOGAKU KK·Filed 1981·Granted Mar 20, 1984·19 cites·9 claims
- 1156US5933595AComputer apparatus having electrically rewritable nonvolatile memory, and nonvolatile semiconductor memorySHARP KK·Filed 1997·Granted Aug 3, 1999·36 cites·21 claims
- 1254US4189213AZoom lens systemNIPPON KOGAKU KK·Filed 1977·Granted Feb 19, 1980·13 cites·6 claims
- 1349US4770509AZoom lens comprising two groups of lensesNIPPON KOGAKU KK·Filed 1985·Granted Sep 13, 1988·13 cites·14 claims
- 1447US4398807AZoom lensNIPPON KOGAKU KK·Filed 1981·Granted Aug 16, 1983·10 cites·2 claims
- 1545US4348091AIndicator device in an inverted Galilean finderNIPPON KOGAKU KK·Filed 1981·Granted Sep 7, 1982·3 cites·6 claims
- 1644US4063800AZoom lens for a projectorNIPPON KOGAKU KK·Filed 1975·Granted Dec 20, 1977·8 cites·2 claims
- 1744US2005223405A1Program information receiving apparatus, program information receiving method, and program information receiving programPIONEER CORP·Filed 2005·Application pending·0 cites
- 1840US4357086AFocus detecting optical device of a single lens reflex cameraNIPPON KOGAKU KK·Filed 1981·Granted Nov 2, 1982·7 cites·6 claims
- 1939US4441802AAlbada finder deviceNIPPON KOGAKU KK·Filed 1981·Granted Apr 10, 1984·2 cites·3 claims
- 2026US4632531AFocusing screenNIPPON KOGAKU KK·Filed 1985·Granted Dec 30, 1986·1 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →