Otsuka Electronics Co., Ltd.
Records under this name other than the patents Otsuka Electronics Co., Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 34 patents it holds.
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| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,415,639 | Quantum efficiency measurement method, quantum efficiency measurement apparatus, and integrator Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 7,283,222 | Optical measuring device Term ended Term ended Apr 12, 2026 · From the USPTO record | Term ended | Term ended Apr 12, 2026 | From the USPTO record |
| US 7,449,097 | Electrophoretic Mobility Measuring Apparatus Term ended Term ended Mar 1, 2026 · High confidence | Term ended | Term ended Mar 1, 2026 | High confidence |
| US 10,996,106 | Luminous body measurement apparatus and luminous body measurement method comprising a control unit to pivot a first and a second arm to hold an image pickup device in plural postures Lapsed on the fee record Ended May 4, 2025 · From the USPTO record | Lapsed on the fee record | Ended May 4, 2025 | From the USPTO record |
| US 9,377,352 | Standard light source having restriction portion for diffuse reflection and measurement method Lapsed on the fee record Ended Jun 28, 2024 · From the USPTO record | Lapsed on the fee record | Ended Jun 28, 2024 | From the USPTO record |
| US 8,119,996 | Quantum efficiency measurement apparatus and quantum efficiency measurement method Lapsed on the fee record Ended Feb 21, 2024 · From the USPTO record | Lapsed on the fee record | Ended Feb 21, 2024 | From the USPTO record |
| US 9,239,259 | Optical measurement system, optical measurement method, and mirror plate for optical measurement system Lapsed on the fee record Ended Jan 19, 2024 · From the USPTO record | Lapsed on the fee record | Ended Jan 19, 2024 | From the USPTO record |
| US 10,330,530 | Reference light source device used for calibration of spectral luminance meter and calibration method using same Lapsed on the fee record Ended Jun 25, 2023 · From the USPTO record | Lapsed on the fee record | Ended Jun 25, 2023 | From the USPTO record |
| US 8,970,835 | Optical characteristic measuring apparatus Lapsed on the fee record Ended Mar 3, 2023 · From the USPTO record | Lapsed on the fee record | Ended Mar 3, 2023 | From the USPTO record |
| US 8,941,829 | Spectral characteristic measurement method and spectral characteristic measurement apparatus that corrects for stray light Lapsed on the fee record Ended Jan 27, 2023 · From the USPTO record | Lapsed on the fee record | Ended Jan 27, 2023 | From the USPTO record |