Inventor · disambiguated record
Koji Ishida
Also filed as: ISHIDA KOJI · KATSUYAMA TOSHIO · SATOH SHIN · SUMI MASAO
24 granted patents·1 pending application·558 citations·filing 1974–2017
97Inventor score
Top patents by PatentIndex Score
25 records- 0194US4983540AMethod of manufacturing devices having superlattice structuresHITACHI LTD·Filed 1988·Granted Jan 8, 1991·123 cites·27 claims
- 0284US4737015AOptical waveguide having a silicon oxi-nitride layerHITACHI CABLE·Filed 1984·Granted Apr 12, 1988·42 cites·17 claims
- 0379US10921609B2Transmissive diffuser plate having a microlens angle modulation distribution groupKURARAY CO·Filed 2017·Granted Feb 16, 2021·3 cites·8 claims
- 0479US4737003AOptical switching device utilizing multiple quantum well structures between intersecting waveguidesHITACHI LTD·Filed 1984·Granted Apr 12, 1988·42 cites·41 claims
- 0578US4185890AOptical transmission lineHITACHI LTD·Filed 1976·Granted Jan 29, 1980·32 cites·7 claims
- 0674US4693543AOptical integrated circuitHITACHI LTD·Filed 1984·Granted Sep 15, 1987·31 cites·2 claims
- 0773US5113072ADevice having superlattice structure, and method of and apparatus for manufacturing the sameHITACHI LTD·Filed 1990·Granted May 12, 1992·48 cites·33 claims
- 0870US5146513ASemiconductor optical device and array of the sameHITACHI LTD·Filed 1991·Granted Sep 8, 1992·31 cites·16 claims
- 0967US4784451AWaveguide optical switchesHITACHI LTD·Filed 1985·Granted Nov 15, 1988·27 cites·8 claims
- 1066US4203743AMethod of producing optical fiberHITACHI LTD·Filed 1978·Granted May 20, 1980·20 cites·20 claims
- 1166US3946853AEscalator belt cleanerISHIDA KOJI·Filed 1974·Granted Mar 30, 1976·21 cites·9 claims
- 1263US4695122AOptical thin film waveguideHITACHI LTD·Filed 1985·Granted Sep 22, 1987·24 cites·14 claims
- 1361US5543629ASuperlattice avalanche photodiode (APD)HITACHI LTD·Filed 1995·Granted Aug 6, 1996·30 cites·24 claims
- 1461US4206968AOptical fiber and method for producing the sameHITACHI LTD·Filed 1978·Granted Jun 10, 1980·16 cites·12 claims
- 1558US9156743B2Carbon component and method for manufacturing the sameMINOURA SEIJI·Filed 2011·Granted Oct 13, 2015·1 cites·24 claims
- 1657US8436352B2Semiconductor integrated circuitKANEDA YOSHINOBU·Filed 2011·Granted May 7, 2013·1 cites·8 claims
- 1752US5033810AOptical deviceHITACHI LTD·Filed 1989·Granted Jul 23, 1991·14 cites·18 claims
- 1850US5044745ASemiconductor optical switch and array of the sameHITACHI LTD·Filed 1990·Granted Sep 3, 1991·13 cites·24 claims
- 1948US5324959ASemiconductor optical device having a heterointerface thereinHITACHI LTD·Filed 1992·Granted Jun 28, 1994·14 cites·12 claims
- 2040US5394491ASemiconductor optical switch and array of the sameHITACHI LTD·Filed 1994·Granted Feb 28, 1995·7 cites·8 claims
- 2137US3973247AMethod of writing and erasing information for electrooptic ceramic memoriesHITACHI LTD·Filed 1974·Granted Aug 3, 1976·5 cites·3 claims
- 2235US4476586AIF Signal processing circuit in a receiverPIONEER ELECTRONIC CORP·Filed 1983·Granted Oct 9, 1984·4 cites·8 claims
- 2333US5247592ASemiconductor optical device and array of the sameHITACHI LTD·Filed 1992·Granted Sep 21, 1993·4 cites·4 claims
- 2432US5422967ASelf-routing optical switch and optical switch arrayHITACHI LTD·Filed 1993·Granted Jun 6, 1995·5 cites·7 claims
- 2531US2012181738A1Electronic part positioning jigHIROSE KEIJI·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →