AH

Akihiko Hamada

SI Sumitomo Rubber Industries: 32 patents #36 of 1,637Top 3%
KA Kao: 2 patents #1,388 of 3,221Top 45%
SC Sumitomo Seika Chemicals Co.: 2 patents #132 of 365Top 40%
📍 Kakogawa, JP: #13 of 707 inventorsTop 2%
Overall (All Time): #114,308 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 26–32 of 32 patents

Patent #TitleCo-InventorsDate
5340112 Thread wound golf ball Tadahiro Ebisuno 1994-08-23
5215308 Solid golf ball Hidenori Hiraoka 1993-06-01
5156405 Golf ball Katsutoshi Kitaoh, Mikio Yamada 1992-10-20
5082285 Solid golf ball Hidenori Hiraoka 1992-01-21
4929678 Rubber composition and a solid golf ball obtained therefrom Hidenori Hiraoka, Yoshinobu Nakamura, Hiroshi Ohtsuru 1990-05-29
4871589 Method of coating a golf ball Katsutoshi Kitaoh 1989-10-03
4679794 Golf ball Mikio Yamada 1987-07-14