Inventor · disambiguated record
Koichi Katayama
Also filed as: KATAYAMA KOICHI
5 granted patents·114 citations·filing 1990–2002
82Inventor score
Files withEISAI CO LTD5
Top patents by PatentIndex Score
5 records- 0193US5385942AQuinone derivatives and pharmacological useEISAI CO LTD·Filed 1993·Granted Jan 31, 1995·48 cites·19 claims
- 0293US5210239AOuinone derivatives and pharmacological useEISAI CO LTD·Filed 1990·Granted May 11, 1993·49 cites·26 claims
- 0375US6703388B2Nitrogen-containing tricyclic compounds and drugs containing the sameEISAI CO LTD·Filed 2002·Granted Mar 9, 2004·8 cites·11 claims
- 0467US6489336B2Nitrogen-containing tricyclic compounds and drugs containing the sameEISAI CO LTD·Filed 2001·Granted Dec 3, 2002·3 cites·22 claims
- 0546US6333322B1Nitrogen-containing tricyclic compounds and drugs containing the sameEISAI CO LTD·Filed 1997·Granted Dec 25, 2001·6 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →