Inventor

Kenji Maruhashi

Inventor

Yokohama, JP

Overview

5→

Patents

1982–1984

Patent span

Chemistry

Primary field (CPC C)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C12Pprimary

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture28%

C12NMicroorganisms or enzymes17%

C12RIndexing scheme associated with subclasses c12c - c12q, relating to microorganisms17%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%

C07DHeterocyclic compounds11%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%

C07HSugars6%

PatentTitleYear

4,436,663'Process for separating porphyrins'1984 4,383,110'Process for purifying and separating vitamin B.sub.12'1983 4,370,415'Process for producing uroporphyrin III'1983 4,347,184'Process for separating and recovering coproporphyrin and uroporphyrin from a culture broth containing them'1982 4,334,021'Process for producing coproporphyrin III'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1984Patents assigned to NIPPON OIL CO LTD (5)· patent assignee history

1982–1984Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON OIL CO LTD	5	1982–1984

Locations

Location	Patents	Span
Yokohama, JP	5	1982–1984