Inventor · disambiguated record
Ryoji Hirai
Also filed as: HIRAI RYOJI
11 granted patents·1 pending application·70 citations·filing 1981–2023
88Inventor score
Top patents by PatentIndex Score
12 records- 0184US11171715B2Control device, program, control method, and flight vehicleHAPSMOBILE INC·Filed 2021·Granted Nov 9, 2021·2 cites·11 claims
- 0276US11641234B2Interference detection and interference suppression of reverse link communication in feeder link of HAPS communication systemHAPSMOBILE INC·Filed 2020·Granted May 2, 2023·1 cites·9 claims
- 0374US11968025B2Detection of interference between multifeeder links in HAPS communication systemSOFTBANK CORP·Filed 2020·Granted Apr 23, 2024·1 cites·20 claims
- 0468US4943754AColor picture tube with flat appearing face plateHITACHI LTD·Filed 1988·Granted Jul 24, 1990·15 cites·2 claims
- 0561US4475056AColor picture tube for character displayHITACHI LTD·Filed 1981·Granted Oct 2, 1984·10 cites·12 claims
- 0660US4924140AColor picture tube of shadow mask type with particular faceplate panel structureHITACHI LTD·Filed 1988·Granted May 8, 1990·12 cites·5 claims
- 0759US5606217AColor cathode ray tube of shadow mask typeHITACHI LTD·Filed 1994·Granted Feb 25, 1997·15 cites·3 claims
- 0857US12500660B2Control device, system, computer-readable storage medium, and control methodSOFTBANK CORP·Filed 2022·Granted Dec 16, 2025·0 cites·16 claims
- 0957US4713576AColor picture tube with shadow maskHITACHI LTD·Filed 1986·Granted Dec 15, 1987·9 cites·9 claims
- 1053US2025260598A1Information processing device, information processing method and programSOFTBANK CORP·Filed 2023·Application pending·0 cites
- 1138USD1010485SContactless sensor unit for automatic doorPANASONIC IP MAN CO LTD·Filed 2021·Granted Jan 9, 2024·1 cites·1 claims
- 1237US4754188AColor picture tube shadow mask materialHITACHI LTD·Filed 1986·Granted Jun 28, 1988·4 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →