HK

Hiroo Kawahara

AK Asahi Kasei Kabushiki Kaisha: 2 patents #302 of 1,220Top 25%
Overall (All Time): #1,797,231 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11572640 Organic fiber twisted yarn cord Ryo Nayuki, Fumiaki Ise 2023-02-07
10215257 Short rubber reinforcement fiber, rubber composition containing said short fiber, and power transmission belt Yuki Takami, Fumiaki Ise, Hirofumi Enokizono, Tatsuya Sawairi 2019-02-26