NTT, Inc.
10Patents
5Active
10Granted
48Portfolio score
Filing activity: Feb 21, 1986 → Sep 2, 2021 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5413504A | Ferrite and capacitor filtered coaxial connector | Electricity | 147 | Expired |
| US4790660A | Shape measuring instrument | Physics | 12 | Expired |
| US4897050A | Method and apparatus for making coaxial couplings | Electricity | 9 | Expired |
| US8675876B2 | Differential phase shift keying quantum key distribution | Electricity | 8 | Active |
| US4671144A | Retaining clamp for disc brake pistons | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7267213B2 | One-way clutch | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US12423852B2 | Device and method for dividing, scaling, and combining similar attributes for object detection | Physics | 0 | Active |
| US12432581B2 | Wireless communication system, communication apparatus, relay apparatus, communication timing determination method and computer program | Electricity | 0 | Active |
| US12423173B2 | Virtualized system fault isolation device and virtualized system fault isolation method | Physics | 0 | Active |
| US12407755B2 | Communication system, computing machine, communication method and program | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.