Light guide and virtual-image display device
US-12449582-B2 · Oct 21, 2025 · US
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Itoh Masahiro patents
Itoh Masahiro holds 25 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 25 |
| Recent patents | 5 |
| First publication | Apr 2, 2015 |
| Latest publication | Oct 21, 2025 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Light guide member and display device
US-12265225-B2 · Apr 1, 2025 · US
Propagation optical system and virtual image display device
US-12181673-B2 · Dec 31, 2024 · US
Virtual image display device
US-12099207-B2 · Sep 24, 2024 · US
Illuminating device, image reading device, and image forming apparatus with multiple light sources
US-11936829-B2 · Mar 19, 2024 · US
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Light guide and virtual-image display device
US-12449582-B2 · Oct 21, 2025 · US
Light guide member and display device
US-12265225-B2 · Apr 1, 2025 · US
Propagation optical system and virtual image display device
US-12181673-B2 · Dec 31, 2024 · US
Virtual image display device
US-12099207-B2 · Sep 24, 2024 · US
Illuminating device, image reading device, and image forming apparatus with multiple light sources
US-11936829-B2 · Mar 19, 2024 · US
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Electricity | 17 |
| Physics | 9 |
| Operations & Transport | 3 |
| Mechanical Engineering | 2 |