Inventor · disambiguated record
Hiromichi Yamakawa
Also filed as: YAMAKAWA HIROMICHI
5 granted patents·0 citations·filing 2020–2021
58Inventor score
Top patents by PatentIndex Score
5 records- 0157US11513473B2Waveguide, waveguide manufacturing apparatus, waveguide manufacturing method, and video display device using the sameHITACHI LG DATA STORAGE INC·Filed 2020·Granted Nov 29, 2022·0 cites·13 claims
- 0255US12345654B2Defect inspection device, defect inspection method, and adjustment substrateHITACHI HIGH TECH CORP·Filed 2021·Granted Jul 1, 2025·0 cites·8 claims
- 0350US11493759B2Hologram light guide plate with plurality of layers and head mount display using hologram light guide plateHITACHI LG DATA STORAGE INC·Filed 2020·Granted Nov 8, 2022·0 cites·15 claims
- 0446US12400889B2Defect inspection deviceHITACHI HIGH TECH CORP·Filed 2021·Granted Aug 26, 2025·0 cites·11 claims
- 0543US12366538B2Defect inspection apparatus and defect inspection methodHITACHI HIGH TECH CORP·Filed 2020·Granted Jul 22, 2025·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →