TK

Toshiki Koyama

Tdk: 1 patents #47 of 189Top 25%
UN Unknown: 1 patents #206 of 2,107Top 10%
Overall (1997): #65,753 of 185,788Top 40%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5618930 Phthalocyanine compound and method for making, nitro-substituted phthalocyanine compound, amino-substituted phthalocyanine compound, phthalocyanine-containing polymer and method for making, catalyst, and optical recording medium Mutsumi Kimura, Hirofusa Shirai, Kenji Hanabusa, Yuichi Kubota 1997-04-08