NIPPN CORPORATION
19Patents
4Active
19Granted
39Portfolio score
Filing activity: Jun 30, 1988 → Nov 9, 2023
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5528092A | Spindle motor | Electricity | 39 | Expired |
| US5316658A | Process for the production of low-sulfur diesel gas oil | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5856599A | Process for continuously preparing oil from waste plastics and apparatus therefor | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7337706B2 | Full automatic rice cooking apparatus | Human Necessities | 4 | Expired |
| US4877212A | Document stand | Performing Operations; Transporting | 3 | Expired |
| US4882087A | Aqueous dispersed solution of substituted succinic anhydride and process for producing the same | Textiles; Paper | 3 | Expired |
| US8608455B2 | Fluid rotary machine | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US5521349A | Projection welding method | Electricity | 2 | Expired |
| US5829239A | Spinning ring structure | Textiles; Paper | 2 | Expired |
| US5970698A | Rotary spinning ring structure | Textiles; Paper | 1 | Expired |
| US5918454A | Spinning ring structure with an aerodynamic brake member | Textiles; Paper | 1 | Expired |
| US6047533A | Spinning ring | Textiles; Paper | 1 | Expired |
| US10920402B2 | Emergency stop apparatus and method for working machine | Fixed Constructions | 0 | Active |
| US5881546A | Spinning ring | Textiles; Paper | 0 | Expired |
| US12168804B2 | Listeria-monocytogenes detection method | Emerging Cross-Sectional Technologies | 0 | Active |
| US7871534B2 | Method for dust-preventive treatment of material having dusting property | Chemistry; Metallurgy | 0 | Expired |
| US5521472A | Multiphase DC motor and starting method thereof | Electricity | 0 | Expired |
| US12163195B2 | Listeria-monocytogenes detection method | Emerging Cross-Sectional Technologies | 0 | Active |
| US5819519A | Spinning ring | Textiles; Paper | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.