Inventor
YAMAKAWA HIROMICHI
JP5 patents
⚠️ This page may combine multiple inventors who share the name “YAMAKAWA HIROMICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI HIGH TECH CORP
3 patentsUS12400889B2Aug 26, 2025
Defect inspection device
HITACHI HIGH TECH CORP0 citations49
US12366538B2Jul 22, 2025
Defect inspection apparatus and defect inspection method
HITACHI HIGH TECH CORP0 citations49
US12345654B2Jul 1, 2025
Defect inspection device, defect inspection method, and adjustment substrate
HITACHI HIGH TECH CORP0 citations48
HITACHI LG DATA STORAGE INC
2 patentsUS11513473B2Nov 29, 2022
Waveguide, waveguide manufacturing apparatus, waveguide manufacturing method, and video display device using the same
HITACHI LG DATA STORAGE INC0 citations56
US11493759B2Nov 8, 2022
Hologram light guide plate with plurality of layers and head mount display using hologram light guide plate
HITACHI LG DATA STORAGE INC0 citations49