YH

Yoichiro Hamamoto

OG Olympic Group: 1 patents #4 of 7Top 60%
Overall (All Time): #1,689,070 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12196273 Rotation assist tool and assist-attached rotation tool 2025-01-14
10450030 Rotational apparatus and bicycle provided with same 2019-10-22