RT

Ryoji Takamura

TI Toray Industries: 1 patents #2,000 of 3,690Top 55%
📍 Moriyama, JP: #1,620 of 2,577 inventorsTop 65%
Overall (All Time): #3,859,410 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5148023 Ultraviolet ray measuring apparatus for predicting sunburn level and for obtaining SPF values of cosmetics Mutsumi Hayashi, Chikayasu Yamazaki, Minoru Ueda, Ichiro Kumo 1992-09-15