Inventor · disambiguated record

Hiroyuki Koyou

Also filed as: KOYOU HIROYUKI

2 granted patents·114 citations·filing 1995–1996

69Inventor score

Technology areasB01D B01J

Files withTAKEDA CHEMCIAL IND LTD1 TAKEDA CHEMICAL INDUSTRIES LTD1

Top patents by PatentIndex Score

2 records

0181US5690922ADeodorizable fibers and method of producing the sameTAKEDA CHEMICAL INDUSTRIES LTD·Filed 1996·Granted Nov 25, 1997·63 cites·19 claims
0275US5872072ACatalytic compositions and a deodorizing method using the sameTAKEDA CHEMCIAL IND LTD·Filed 1995·Granted Feb 16, 1999·51 cites·18 claims

Join the waitlist — get patent alerts

Get an alert when Hiroyuki Koyou 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 →