Hiromichi YAMAKAWA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Waveguide, waveguide manufacturing apparatus, waveguide manufacturi...
- Patent number 11,513,473
- Issue date Nov 29, 2022
- Hitachi-LG Data Storage, Inc.
- Takeru Utsugi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hologram light guide plate with plurality of layers and head mount...
- Patent number 11,493,759
- Issue date Nov 8, 2022
- Hitachi-LG Data Storage, Inc.
- Tomoto Kawamura
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
DEFECT INSPECTION DEVICE, DEFECT INSPECTION METHOD, AND ADJUSTMENT...
- Publication number 20240230551
- Publication date Jul 11, 2024
- HITACHI HIGH-TECH CORPORATION
- Yuta URANO
- G01 - MEASURING TESTING
Information Patent Application
DEFECT INSPECTION DEVICE, DEFECT INSPECTION METHOD, AND ADJUSTMENT...
- Publication number 20240133824
- Publication date Apr 25, 2024
- HITACHI HIGH-TECH CORPORATION
- Yuta URANO
- G01 - MEASURING TESTING
Information Patent Application
DEFECT INSPECTION DEVICE
- Publication number 20240096667
- Publication date Mar 21, 2024
- Hitachi High-Tech Corporation
- Hiromichi YAMAKAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DEFECT INSPECTION APPARATUS AND DEFECT INSPECTION METHOD
- Publication number 20230175978
- Publication date Jun 8, 2023
- Hitachi High-Tech Corporation
- Toshifumi HONDA
- G01 - MEASURING TESTING
Information Patent Application
WAVEGUIDE, WAVEGUIDE MANUFACTURING APPARATUS, WAVEGUIDE MANUFACTURI...
- Publication number 20210055693
- Publication date Feb 25, 2021
- Hitachi-LG Data Storage, Inc.
- Takeru UTSUGI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
HOLOGRAM LIGHT GUIDE PLATE, HEAD MOUNT DISPLAY
- Publication number 20210033864
- Publication date Feb 4, 2021
- Hitachi-LG Data Storage, Inc.
- Tomoto KAWAMURA
- G02 - OPTICS