YI

Yuichiro Ishikawa

Shimano: 2 patents #53 of 129Top 45%
TC Tsubakimoto Chain: 1 patents #8 of 15Top 55%
Overall (2021): #55,876 of 548,734Top 15%
3
Patents 2021

Issued Patents 2021

Patent #TitleCo-InventorsDate
11143100 Tensioner Yoshitaka Iwasaki, Masanori Watanabe, Osamu Yoshida, Yuji Kurematsu 2021-10-12
11070252 Circuit module, bicycle electric component, and communication system Fumihide Numata, Takafumi Suzuki, Mao Kuroda 2021-07-20
10974604 Bicycle power supply system Tetsuya KITANI, Kento Mitsuyasu 2021-04-13