Shinzo Seko
32Patents
3h-index
22Co-inventors
59Inventor score
Filing activity: Oct 19, 1993 → Jul 3, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5880291A | Process for producing optically active azetidine-2-carboxylic acid | Chemistry; Metallurgy | 6 | Expired |
| US6211411A | Process for producing retinal and intermediate for producing the same | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5902905A | Method for producing arylvinylsulfone | Chemistry; Metallurgy | 3 | Expired |
| US6331652A | Process for producing lycopene and intermediate thereof | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8269044B2 | Method for selectively producing primary amine compound | Chemistry; Metallurgy | 2 | Active |
| US6288283A | Process for producing retinal and intermediates for producing the same | Chemistry; Metallurgy | 2 | Expired |
| US5756769A | Method for producing propargylamine compounds | Chemistry; Metallurgy | 2 | Expired |
| US6297402A | Ketosulfone derivatives and process for producing the same | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6444857B1 | Process for producing vitamin A aldehyde and intermediate for producing the same | Chemistry; Metallurgy | 1 | Expired |
| US6388124B2 | Dihalo-compound and process for producing vitamin A derivative | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7439357B2 | Process for preparing thiazole by aminomethylation | Chemistry; Metallurgy | 1 | Expired |
| US6355841B1 | Process for producing &bgr;-carotene | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6160181A | Tetraene derivative and process for producing the same | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6660888B2 | Process for producing retinol and intermediate compounds for producing the same | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7977490B2 | Process for producing thiazole compound | Chemistry; Metallurgy | 1 | Active |
| US6348622B1 | Vitamin a related compounds and process for producing the same | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5969149A | Process for producing hexahydrothieno[3,4-D]imidazole-2,4-diones | Chemistry; Metallurgy | 1 | Expired |
| US5466871A | Process for preparing nitroaniline derivatives | Chemistry; Metallurgy | 1 | Expired |
| US7652177B2 | Process for production of alcohol compound | Chemistry; Metallurgy | 0 | Active |
| US5412106A | Process for production of 2-thiophene aldehydes | Chemistry; Metallurgy | 0 | Expired |
| US6037509A | Process for producing 1-bromo-4-phenylbutane | Chemistry; Metallurgy | 0 | Expired |
| US6806387B2 | Process for preparation of allyl sulfone derivatives and intermediates for the preparation | Chemistry; Metallurgy | 0 | Expired |
| US5639895A | Process for producing .beta.-nitroenamine | Chemistry; Metallurgy | 0 | Expired |
| US8304558B2 | Method for producing thiazole compound | Chemistry; Metallurgy | 0 | Active |
| US6552219B1 | Process for the preparation of vitamin a, intermediates, and process for the preparation of the intermediates | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.