KK

Ken Kumata

MI Ministry Of International Trade & Industry: 1 patents #189 of 582Top 35%
AT Agency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
📍 Murayama, JP: #15 of 30 inventorsTop 50%
Overall (All Time): #2,358,430 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4453803 Optical waveguide for middle infrared band Takehiko Hidaka, Takitaro Morikawa, Junichi Shimada 1984-06-12
4194916 Reversibly photosensitive glass Hiroshi Namikawa 1980-03-25