TK

Takao Koyama

ML Mitsubishi Pencil Company, Limited: 1 patents #4 of 10Top 40%
📍 Fujioka, JP: #2 of 7 inventorsTop 30%
Overall (1989): #53,141 of 140,708Top 40%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4863649 Process for producing carbon heat generator Takamasa Kawakubo 1989-09-05