Inventor · disambiguated record
Takeo Koshikawa
Also filed as: KOSHIKAWA TAKEO
7 granted patents·209 citations·filing 1987–1990
88Inventor score
Top patents by PatentIndex Score
7 records- 0192US4833113ADenitration catalyst for reducing nitrogen oxides in exhaust gasMITSUBISHI PETROCHEMICAL CO·Filed 1987·Granted May 23, 1989·72 cites·9 claims
- 0285US4855115AProcess for removing nitrogen oxides from exhaust gasesMITSUBISHI PETROCHEMICAL CO·Filed 1987·Granted Aug 8, 1989·40 cites·5 claims
- 0382US4891348ACatalyst for removing nitrogen oxides in exhaust gasesMITSUBISHI PETROCHEMICAL CO·Filed 1987·Granted Jan 2, 1990·40 cites·7 claims
- 0473US4869735AAdsorbent for arsenic compound and method for removing arsenic compound from combustion gasMITSUBISHI HEAVY IND LTD·Filed 1988·Granted Sep 26, 1989·27 cites·5 claims
- 0562US4952545AProcess for removing nitrogen oxides from exhaust gasesMITSUBISHI PETROCHEMICAL CO·Filed 1989·Granted Aug 28, 1990·15 cites·3 claims
- 0640US5087430AProcess for purifying exhaust gasMITSUBISHI PETROCHEMICAL CO·Filed 1990·Granted Feb 11, 1992·10 cites·3 claims
- 0737US4952381AMethod for denitrizing nitrogen oxides contained in waste gasSAKAI CHEMICAL INDUSTRY CO·Filed 1988·Granted Aug 28, 1990·5 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Takeo Koshikawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →