Jun Takehara
14Patents
3h-index
33Co-inventors
60Inventor score
Filing activity: Nov 21, 1997 → Dec 20, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6184381A | Process for preparing optically active compounds | Chemistry; Metallurgy | 54 | Expired |
| US6887820B1 | Method for producing optically active compounds | Chemistry; Metallurgy | 21 | Expired |
| US7659409B2 | 3-Hydroxy-3-(2-thienyl) propionamides and production method thereof, and production method of 3-amino-1-(2-thienyl)-1-propanols using the same | Performing Operations; Transporting | 3 | Expired |
| US9061991B2 | Method for producing 1-amino-1-alkoxycarbonyl-2-vinylcyclopropane | Chemistry; Metallurgy | 2 | Active |
| US11897844B2 | Method for producing amino acid derivatives | Emerging Cross-Sectional Technologies | 2 | Active |
| US6531594B2 | Process for producing 1H-3-aminopyrrolidine and derivatives thereof | Emerging Cross-Sectional Technologies | 0 | Expired |
| US10703719B2 | Method for producing 5-hydroxypiperidine-2-carboxylic acid | Emerging Cross-Sectional Technologies | 0 | Active |
| US5847205A | Method for producing homocystine | Chemistry; Metallurgy | 0 | Expired |
| US9790181B2 | Method for producing 5-hydroxypiperidine-2-carboxylic acid | Emerging Cross-Sectional Technologies | 0 | Active |
| US10370330B2 | Method for producing 5-hydroxypiperidine-2-carboxylic acid | Emerging Cross-Sectional Technologies | 0 | Active |
| US6077971A | Method for purifying homocystine | Chemistry; Metallurgy | 0 | Expired |
| US12202800B2 | Method for producing amino acid derivatives | Emerging Cross-Sectional Technologies | 0 | Active |
| US9988351B2 | Method for producing 5-hydroxypiperidine-2-carboxylic acid | Emerging Cross-Sectional Technologies | 0 | Active |
| US12281074B2 | Method for producing amino acid derivatives | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.