Inventor · disambiguated record

Toshifumi Ishitobi

Also filed as: ISHITOBI TOSHIFUMI

2 granted patents·14 citations·filing 1982–1986

57Inventor score

Technology areasC10C

Files withKOA OIL CO LTD2

Top patents by PatentIndex Score

2 records

0165US4488957AMethod and apparatus for production of crystallizable carbonaceous materialKOA OIL CO LTD·Filed 1982·Granted Dec 18, 1984·12 cites·10 claims
0233US4769139AApparatus for production of crystallizable carbonaceous materialKOA OIL CO LTD·Filed 1986·Granted Sep 6, 1988·2 cites·1 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →