NICHIA CORPORATION
3,518Patents
2,963Active
3,518Granted
62Portfolio score
Filing activity: Mar 5, 1980 → Oct 1, 2024 · 365 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6586762B2 | Nitride semiconductor device with improved lifetime and high output power | Electricity | 272 | Expired |
| US7470555B2 | Semiconductor laser device, and method of manufacturing the same | Electricity | 235 | Expired |
| US7745818B2 | Light emitting device with silicone resin layer formed by screen printing | Electricity | 228 | Active |
| US6656615B2 | Bulk monocrystalline gallium nitride | Emerging Cross-Sectional Technologies | 162 | Expired |
| US6744071B2 | Nitride semiconductor element with a supporting substrate | Electricity | 130 | Expired |
| US6953952B2 | Semiconductor device and an optical device using the semiconductor device | Emerging Cross-Sectional Technologies | 127 | Expired |
| US6315489A | Fastening member | Mechanical Engineering; Lighting; Heating | 126 | Expired |
| US7193246B1 | Nitride semiconductor device | Electricity | 123 | Expired |
| US6946683B2 | Opposed terminal structure having a nitride semiconductor element | Electricity | 118 | Expired |
| US7215074B2 | Light emitting device with blue light led and phosphor components | Emerging Cross-Sectional Technologies | 112 | Expired |
| US6943433B2 | Semiconductor device and manufacturing method for same | Electricity | 105 | Expired |
| US6289646A | Metal fixture assembly for installation of vertical sidings, construction and method of installation | Fixed Constructions | 96 | Expired |
| US6711191B1 | Nitride semiconductor laser device | Electricity | 93 | Expired |
| US5063098A | Vibration damping materials and soundproofing structures using such damping materials | Emerging Cross-Sectional Technologies | 92 | Expired |
| USD491899S1 | Light emitting diode | General | 91 | Expired |
| US7258816B2 | Nitride phosphor and method for preparation thereof, and light emitting device | Emerging Cross-Sectional Technologies | 89 | Expired |
| US7160388B2 | Process and apparatus for obtaining bulk monocrystalline gallium-containing nitride | Emerging Cross-Sectional Technologies | 88 | Expired |
| US6960878B2 | Light emitting diode, optical semiconductor element and epoxy resin composition suitable for optical semiconductor element and production methods therefor | Electricity | 87 | Expired |
| US6337493B1 | Nitride semiconductor device | Emerging Cross-Sectional Technologies | 86 | Expired |
| US8169131B2 | Fluorescent material and light-emitting device | Electricity | 84 | Active |
| US6328513A | Vibration floating washer assembly and method of attaching the same to heat insulating plate | Performing Operations; Transporting | 83 | Expired |
| US6924514B2 | Light-emitting device and process for producing thereof | Electricity | 81 | Expired |
| US7420261B2 | Bulk nitride mono-crystal including substrate for epitaxy | Electricity | 79 | Active |
| US6870191B2 | Semiconductor light emitting device | Emerging Cross-Sectional Technologies | 78 | Expired |
| US7511311B2 | Semiconductor light-emitting device, method for manufacturing the same, and light-emitting apparatus including the same | Electricity | 76 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.