Inventor · disambiguated record
Kenji Maruhashi
Also filed as: MARUHASHI KENJI
5 granted patents·8 citations·filing 1980–1982
70Inventor score
Files withNIPPON OIL CO LTD5
Top patents by PatentIndex Score
5 records- 0139US4383110AProcess for purifying and separating vitamin B12NIPPON OIL CO LTD·Filed 1981·Granted May 10, 1983·3 cites·3 claims
- 0237US4347184AProcess for separating and recovering coproporphyrin and uroporphyrin from a culture broth containing themNIPPON OIL CO LTD·Filed 1981·Granted Aug 31, 1982·2 cites·1 claims
- 0333US4436663AProcess for separating porphyrinsNIPPON OIL CO LTD·Filed 1982·Granted Mar 13, 1984·2 cites·7 claims
- 0428US4370415AProcess for producing uroporphyrin IIINIPPON OIL CO LTD·Filed 1980·Granted Jan 25, 1983·0 cites·7 claims
- 0528US4334021AProcess for producing coproporphyrin IIINIPPON OIL CO LTD·Filed 1980·Granted Jun 8, 1982·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →