Hiroshi Iwane
27Patents
6h-index
46Co-inventors
69Inventor score
Filing activity: Aug 17, 1979 → Dec 3, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5498789A | Method of producing aromatic carbonate | Chemistry; Metallurgy | 65 | Expired |
| US5543547A | Method of producing aromatic carbonate | Chemistry; Metallurgy | 55 | Expired |
| US4329507A | Substituted aryl ethylenes | Chemistry; Metallurgy | 18 | Expired |
| US4263457A | Process for producing biphenyl derivatives | Chemistry; Metallurgy | 16 | Expired |
| US5344969A | Process for purification of naphthalenedicarboxylic acid | Chemistry; Metallurgy | 12 | Expired |
| US4906791A | Process for preparing p-cumylphenol | Chemistry; Metallurgy | 8 | Expired |
| US4261904A | Tetrahydrofuranol derivative | Chemistry; Metallurgy | 6 | Expired |
| US4937392A | Process for preparing 4,4'-dihydroxydiphenylmethane | Chemistry; Metallurgy | 6 | Expired |
| US5225593A | Process for preparing pyruvate | Chemistry; Metallurgy | 6 | Expired |
| US5175352A | Process for preparing 2,6-naphthalenedicarboxylic acid | Chemistry; Metallurgy | 5 | Expired |
| US4568778A | Process for producing tert-amylphenols | Chemistry; Metallurgy | 5 | Expired |
| US5196598A | Process for producing polyhydroperoxy aromatic compound | Chemistry; Metallurgy | 4 | Expired |
| US4233226A | Novel hexahydrobenzopyran derivative and method of preparing the same | Chemistry; Metallurgy | 3 | Expired |
| US5442103A | Process for producing 2,6-naphthalenedicarboxylic acid | Chemistry; Metallurgy | 3 | Expired |
| US5609790A | Liquid crystal compositions | Chemistry; Metallurgy | 2 | Expired |
| US4564713A | Process for producing 4,4'-dihydroxydiphenyls | Chemistry; Metallurgy | 2 | Expired |
| US5155263A | Process for preparing .alpha.-ketobutyric acid | Chemistry; Metallurgy | 1 | Expired |
| US5019656A | Process for preparing p-hydroxybenzyl alcohol | Chemistry; Metallurgy | 1 | Expired |
| US4700008A | 4,8-dimethylbicyclo(3.3.1)nonane derivatives | Chemistry; Metallurgy | 1 | Expired |
| US5220079A | Process for para-methylolating phenol compounds | Chemistry; Metallurgy | 1 | Expired |
| US4659841A | Process for the preparation of indoles | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5847205A | Method for producing homocystine | Chemistry; Metallurgy | 0 | Expired |
| US5091592A | Process for preparing 4,4'-dihydroxybiphenyl | Chemistry; Metallurgy | 0 | Expired |
| US6077971A | Method for purifying homocystine | Chemistry; Metallurgy | 0 | Expired |
| US5118442A | Optically active compound | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.