Dae Il Hwang
14Patents
2h-index
23Co-inventors
54Inventor score
Filing activity: Jul 23, 1999 → Sep 11, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6417403B1 | Process for preparing chiral (s)-2,3-disubstituted-1-propylamine derivatives | Chemistry; Metallurgy | 4 | Expired |
| US6124122A | Process for preparing optically pure (S)-3-hydroxy-.gamma.-butyrolactone | Chemistry; Metallurgy | 2 | Expired |
| US8206884B2 | Method of preparing toner using micro-suspension particles and toner prepared using the method digital image data | Physics | 2 | Active |
| US8492060B2 | Method of forming toner image and electrophotographic image forming apparatus capable of realizing wide color gamut | Physics | 1 | Active |
| US8389188B2 | Toner using resin having active hydrogen-containing group and method of preparing the same | Physics | 1 | Active |
| US6288272A | Continuous process for preparing optically pure (s)-3,4-dihydroxybutyric acid derivatives | Chemistry; Metallurgy | 1 | Expired |
| US6251642A | Continuous process for preparing optically pure (S)-3-hydroxy-.gamma.-butyrolactone | Chemistry; Metallurgy | 1 | Expired |
| US8475995B2 | Toner having core-shell structure and method of preparing the same | Physics | 0 | Active |
| US6221639A | Process for preparing optically pure(S)-3,4-dihydroxybutyric acid derivatives | Chemistry; Metallurgy | 0 | Expired |
| US8603717B2 | Toner having multiple inflection points on storage modulus curve with respect to temperature and method of preparing the same | Physics | 0 | Active |
| US8389196B2 | Method of preparing toner | Physics | 0 | Active |
| US6713290B2 | Process for preparing optically pure (S)-3-hydroxy-&ggr;-butyrolactone | Chemistry; Metallurgy | 0 | Expired |
| US6586616B1 | Process for preparing(R)-4-cyano-3-hydroxybutyric acid ester | Chemistry; Metallurgy | 0 | Expired |
| US11224564B2 | Composition comprising erigeron annuus flower essential oil for prevention and treatment of neuromuscular disease | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.