Inventor · disambiguated record
Hajimu Kawa
Also filed as: KAWA HAJIMU · KAWA HAJIMU M
22 granted patents·4 pending applications·494 citations·filing 1987–2006
96Inventor score
Top patents by PatentIndex Score
26 records- 0198US5093432ALiquid phase fluorinationEXFLUOR RES CORP·Filed 1989·Granted Mar 3, 1992·141 cites·21 claims
- 0290US5674949ALiquid-phase fluorinationEXFLUOR RES CORP·Filed 1995·Granted Oct 7, 1997·32 cites·20 claims
- 0389US5455373AMethod of producing perfluorocarbon halidesEXFLUOR RES CORP·Filed 1994·Granted Oct 3, 1995·31 cites·24 claims
- 0488US5571870ALiquid phase fluorinationEXFLUOR RES CORP·Filed 1994·Granted Nov 5, 1996·21 cites·28 claims
- 0588US5322903ALiquid-phase fluorinationEXFLUOR RES CORP·Filed 1992·Granted Jun 21, 1994·38 cites·20 claims
- 0681US6479712B1Method for preparing perfluorocarbon-substituted methanolsEXFLUOR RES CORP·Filed 1999·Granted Nov 12, 2002·14 cites·10 claims
- 0780US5753776ALiquid-phase fluorinationEXFLUOR RES CORP·Filed 1995·Granted May 19, 1998·27 cites·35 claims
- 0880US5539059APerfluorinated polyethersEXFLUOR RES CORP·Filed 1995·Granted Jul 23, 1996·35 cites·25 claims
- 0979US5322904ALiquid-phase fluorinationEXFLUOR RES CORP·Filed 1993·Granted Jun 21, 1994·20 cites·28 claims
- 1079US5202480AFluorination of acetals, ketals and orthoestersEXFLUOR RES CORP·Filed 1991·Granted Apr 13, 1993·24 cites·4 claims
- 1173US5053536AFluorination of acetals, ketals and orthoestersEXFLUOR RES CORP·Filed 1989·Granted Oct 1, 1991·19 cites·4 claims
- 1270US5543567AFluorination of acetals, ketals and orthoestersEXFLUOR RES CORP·Filed 1995·Granted Aug 6, 1996·8 cites·8 claims
- 1369US6559268B1Perfluoro group-containing compounds and hardened polymer of the sameKYOEISHA CHEMICAL CO LTD·Filed 2000·Granted May 6, 2003·4 cites·11 claims
- 1464US5332790ALiquid-phase fluorinationEXFLUOR RES CORP·Filed 1993·Granted Jul 26, 1994·8 cites·28 claims
- 1564US4894484APyrolysis of perfluoropolyethersEXFLUOR RES CORP·Filed 1987·Granted Jan 16, 1990·13 cites·14 claims
- 1663US4931199AUse of chlorofluoropolyethers as lubricants for refrigerantsEXFLUOR RES CORP·Filed 1989·Granted Jun 5, 1990·12 cites·18 claims
- 1761US5506309APerfluorinates polyethersEXFLUOR RES CORP·Filed 1995·Granted Apr 9, 1996·18 cites·34 claims
- 1861US5461117ALiquid phase fluorinationEXFLUOR RES CORP·Filed 1994·Granted Oct 24, 1995·9 cites·30 claims
- 1959US2006287540A1Method for preparing perfluorocarbon-substituted methanolsEXFLUOR RES CORP·Filed 2006·Application pending·0 cites
- 2057US5300683AFluorination of acetals, ketals and orthoestersEXFLUOR RES CORP·Filed 1992·Granted Apr 5, 1994·7 cites·3 claims
- 2157US2006079701A1Method for preparing perfluorocarbon-substituted methanolsEXFLUOR RES CORP·Filed 2005·Application pending·0 cites
- 2249US2003130547A1Method for preparing perfluorocarbon-substituted methanolsEXFLUOR RES CORP·Filed 2002·Application pending·0 cites
- 2347US5025093APyrolysis of perfluoropolyethersEXFLUOR RES CORP·Filed 1990·Granted Jun 18, 1991·6 cites·12 claims
- 2445US5557012AFluorination of acetals, ketals and orthoestersEXFLUOR RES CORP·Filed 1995·Granted Sep 17, 1996·5 cites·5 claims
- 2541US5523496AFluorination of acetals, ketals and orthoestersEXFLUOR RES CORP·Filed 1994·Granted Jun 4, 1996·2 cites·20 claims
- 2631US2004137371A1Method of making a semiconductor device using a pellicle that is transparent at short wavelengthsFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →