TO

Tsutomu Obayashi

HC Hiraoka & Co.: 8 patents #1 of 15Top 7%
📍 Katsushika, JP: #17 of 86 inventorsTop 20%
Overall (All Time): #671,355 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
4749625 Amorphous metal laminate sheet Saburo Baba, Manabu Imoto, Shinobu Watanabe 1988-06-07
4714650 Stainproof, flame-resistant composite sheet material Kazuhide Ino, Yoshiji Hiraoka, Saburo Baba 1987-12-22
4686135 Composite sheet material Kazuhide Ino, Yoshiji Hiraoka, Saburo Baba 1987-08-11
4678681 Process for preparation of water-proof sheets Shinobu Watanabe, Kazuhide Ino 1987-07-07
4410575 Lap welding method for textile fabrics Hideyuki Hiraoka 1983-10-18
4324827 Water-proof, fuse-bonding fabric Hideyuki Hiraoka 1982-04-13
4312907 Water-impermeable sheet material Yoshiji Hiraoka 1982-01-26
4298645 Tarpaulins having great tearing strength Hideyuki Hiraoka 1981-11-03