Inventor · disambiguated record
Ryoji Ishioka
Also filed as: ISHIOKA RYOJI
5 granted patents·145 citations·filing 1975–2001
82Inventor score
Top patents by PatentIndex Score
5 records- 0196US4634784AProcess for production of epichlorohydrinSHOWA DENKO KK·Filed 1985·Granted Jan 6, 1987·101 cites·2 claims
- 0280US3957804AMethod for the production of nicotinamide and isonicotinamideSHOWA DENKO KK·Filed 1975·Granted May 18, 1976·11 cites·9 claims
- 0379US6716911B2Method for producing aqueous biodegradable polyester dispersionSHOWA HIGHPOLYMER·Filed 2001·Granted Apr 6, 2004·19 cites·13 claims
- 0454US3959297AProcess for the preparation of 3-cyanopyridineSHOWA DENKO KK·Filed 1975·Granted May 25, 1976·11 cites·19 claims
- 0544US4567292AProcess for production of allyl carboxylateSHOWA DENKO KK·Filed 1985·Granted Jan 28, 1986·3 cites·4 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →