Inventor · disambiguated record
Eiichi Maruyama
Also filed as: MARUYAMA EIICHI
35 granted patents·1 pending application·832 citations·filing 1974–2014
98Inventor score
Top patents by PatentIndex Score
36 records- 0198US4378417AElectrophotographic member with α-Si layersHITACHI LTD·Filed 1981·Granted Mar 29, 1983·96 cites·10 claims
- 0297US4365013AElectrophotographic memberHITACHI LTD·Filed 1981·Granted Dec 21, 1982·90 cites·7 claims
- 0392US4583122AImaging display deviceHITACHI LTD·Filed 1983·Granted Apr 15, 1986·94 cites·7 claims
- 0486US4433202AThin film solar cellHITACHI LTD·Filed 1982·Granted Feb 21, 1984·46 cites·12 claims
- 0586US4255686AStorage type photosensor containing silicon and hydrogenHITACHI LTD·Filed 1979·Granted Mar 10, 1981·23 cites·9 claims
- 0685US4121537AApparatus for vacuum depositionHITACHI LTD·Filed 1977·Granted Oct 24, 1978·35 cites·6 claims
- 0781US4232219APhotosensorNIPPON TELEGRAPH & TELEPHONE·Filed 1979·Granted Nov 4, 1980·27 cites·14 claims
- 0879US4249106ARadiation sensitive screenHITACHI LTD·Filed 1979·Granted Feb 3, 1981·16 cites·7 claims
- 0976US4199777ASemiconductor device and a method of manufacturing the sameHITACHI LTD·Filed 1977·Granted Apr 22, 1980·34 cites·22 claims
- 1074US4613382AMethod of forming passivated polycrystalline semiconductorsHITACHI LTD·Filed 1985·Granted Sep 23, 1986·43 cites·16 claims
- 1174US4377628AElectrophotographic member with α-Si and HHITACHI LTD·Filed 1981·Granted Mar 22, 1983·24 cites·24 claims
- 1272US4273812AMethod of producing material patterns by evaporating material through a perforated mask having a reinforcing bridgeHITACHI LTD·Filed 1979·Granted Jun 16, 1981·20 cites·17 claims
- 1371US4233506APhoto-sensorNIPPON TELEGRAPH & TELEPHONE·Filed 1978·Granted Nov 11, 1980·17 cites·22 claims
- 1470US4556817APhotoelectric conversion apparatusHITACHI LTD·Filed 1983·Granted Dec 3, 1985·13 cites·14 claims
- 1568US4673959AHeterojunction FET with doubly-doped channelHITACHI LTD·Filed 1984·Granted Jun 16, 1987·20 cites·15 claims
- 1668US4672015AElectrophotographic member having multilayered amorphous silicon photosensitive memberHITACHI LTD·Filed 1984·Granted Jun 9, 1987·14 cites·21 claims
- 1768US4227078APhoto-sensorNIPPON TELEGRAPH & TELEPHONE·Filed 1978·Granted Oct 7, 1980·15 cites·22 claims
- 1867US4351856ASemiconductor device and method of manufacturing the sameHITACHI LTD·Filed 1980·Granted Sep 28, 1982·27 cites·8 claims
- 1963US4360821ASolid-state imaging deviceHITACHI LTD·Filed 1979·Granted Nov 23, 1982·23 cites·11 claims
- 2063US4040985APhotoconductive filmsHITACHI LTD·Filed 1976·Granted Aug 9, 1977·16 cites·3 claims
- 2161US4323912ASolid-state imaging deviceHITACHI LTD·Filed 1980·Granted Apr 6, 1982·19 cites·5 claims
- 2260US4605945ASemiconductor deviceHITACHI LTD·Filed 1984·Granted Aug 12, 1986·15 cites·22 claims
- 2359US4285007AColor solid-state imager and method of making the sameHITACHI LTD·Filed 1980·Granted Aug 18, 1981·17 cites·8 claims
- 2456US4314014AElectrophotographic plate and process for preparation thereofHITACHI LTD·Filed 1980·Granted Feb 2, 1982·9 cites·20 claims
- 2555US4904989ADisplay deviceHITACHI LTD·Filed 1987·Granted Feb 27, 1990·19 cites·7 claims
- 2650US4559547ASemiconductor deviceHITACHI LTD·Filed 1982·Granted Dec 17, 1985·10 cites·21 claims
- 2750US4307319ASemiconductor layer of oxygen depletion type cerium oxide or lead oxideHITACHI LTD·Filed 1978·Granted Dec 22, 1981·5 cites·5 claims
- 2850US2016089616A1Moisture- harvesting deviceALL ROUND CORP·Filed 2014·Application pending·0 cites
- 2948US3984722APhotoconductive target of an image pickup tube and method for manufacturing the sameHITACHI LTD·Filed 1974·Granted Oct 5, 1976·7 cites·27 claims
- 3043US4405879APhotoelectric conversion device and method of producing the sameHITACHI LTD·Filed 1981·Granted Sep 20, 1983·4 cites·12 claims
- 3143US4394749APhotoelectric device and method of producing the sameHITACHI LTD·Filed 1980·Granted Jul 19, 1983·8 cites·8 claims
- 3242US4556816APhotoelectric deviceHITACHI LTD·Filed 1983·Granted Dec 3, 1985·8 cites·8 claims
- 3342US4307372APhotosensorHITACHI LTD·Filed 1979·Granted Dec 22, 1981·8 cites·14 claims
- 3440US4380557AMethod of production of image pickup deviceHITACHI LTD·Filed 1981·Granted Apr 19, 1983·3 cites·6 claims
- 3538US4331506AMethod of manufacturing target of image pickup tubeHITACHI LTD·Filed 1980·Granted May 25, 1982·3 cites·6 claims
- 3634US4419604ALight sensitive screenHITACHI LTD·Filed 1981·Granted Dec 6, 1983·4 cites·17 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →