SS

Susumu Shigemasa

TC Toyo Kohan Co.: 2 patents #100 of 295Top 35%
Overall (All Time): #2,207,542 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6641682 Method for manufacturing an aperture grill material for color picture tube Tsuneyuki Ide, Takahiko MIYAZAKI, Yasuo Tahara 2003-11-04
6306229 Method for production of invar alloy steel sheet material for shadow mask Tsuneyuki Ide, Hironao Okayama, Hiroaki Ikenaga, Yasuo Tahara, Taizo Sato +1 more 2001-10-23