Japan Energy Corporation
136Patents
5Active
136Granted
43Portfolio score
Filing activity: Mar 16, 1992 → Mar 23, 2007 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6376501B1 | Type 2 helper T cell-selective immune response suppressors | Chemistry; Metallurgy | 198 | Expired |
| US6028076A | Purine derivative | Chemistry; Metallurgy | 190 | Expired |
| US6329381A | Heterocyclic compounds | Chemistry; Metallurgy | 174 | Expired |
| US6300558A | Lattice matched solar cell and method for manufacturing the same | Emerging Cross-Sectional Technologies | 152 | Expired |
| US5693203A | Sputtering target assembly having solid-phase bonded interface | Emerging Cross-Sectional Technologies | 124 | Expired |
| US6791257B1 | Photoelectric conversion functional element and production method thereof | Electricity | 80 | Expired |
| US5456815A | Sputtering targets of high-purity aluminum or alloy thereof | Chemistry; Metallurgy | 40 | Expired |
| US5565978A | Total-reflection type refractive index sensor | Physics | 33 | Expired |
| US6248929A | Rubber process oil and production process thereof | Chemistry; Metallurgy | 32 | Expired |
| US7938955B2 | Method for producing super-low sulfur gas oil blending component or super-low sulfur gas oil composition, and super-low sulfur gas oil composition | Chemistry; Metallurgy | 32 | Active |
| US7696376B2 | Method for manufacture of esters by transesterification | Performing Operations; Transporting | 29 | Expired |
| US7001503B1 | Method and apparatus for stripping sulfur-containing compounds from hydrocarbon feed stock in hydrorefining of petroleum distillates | Chemistry; Metallurgy | 28 | Expired |
| US7211681B2 | Ester production method by transesterification reaction using solid acid catalyst | Chemistry; Metallurgy | 28 | Expired |
| US6858132B2 | Hydrofining catalyst and hydrofining process | Performing Operations; Transporting | 28 | Expired |
| US5460793A | Silicide targets for sputtering and method of manufacturing the same | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5552234A | Copper foil for printed circuits | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5466355A | Mosaic target | Chemistry; Metallurgy | 25 | Expired |
| US6036741A | Process for producing high-purity ruthenium | Chemistry; Metallurgy | 25 | Expired |
| US6451135B1 | High-purity copper sputtering targets and thin films | Electricity | 24 | Expired |
| US5464520A | Silicide targets for sputtering and method of manufacturing the same | Electricity | 24 | Expired |
| US5661153A | 1-arylpyrimidine derivatives and pharmaceutical use thereof | Chemistry; Metallurgy | 23 | Expired |
| US5804046A | Thin-film forming apparatus | Electricity | 23 | Expired |
| US5916375A | Method of producing photoelectric conversion device | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5772860A | High purity titanium sputtering targets | Chemistry; Metallurgy | 22 | Expired |
| US7265075B2 | Hydro-refining catalyst, carrier for use therein and method for production thereof | Performing Operations; Transporting | 22 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.