KH

Kaoru Hamada

NC Nippon Paper Industries Co.: 2 patents #3 of 36Top 9%
YI Yoshitomi Pharmaceutical Industries: 1 patents #6 of 56Top 15%
Overall (1997): #34,343 of 185,788Top 20%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5665675 Aminobenzenesulfonamide derivative and recording medium using the same Tomoaki Nagai, Akio Sekine 1997-09-09
5661100 Urea (thiourea) derivative and thermal recording sheet using the same Toshiaki Minami, Tomoaki Nagai, Akio Sekine, Ryoichi Kinishi, Ryuzo Minakami 1997-08-26