YH

Yoshiaki Hirakawa

CC Citizen Holdings Co.: 2 patents #121 of 431Top 30%
Overall (All Time): #1,572,404 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7827925 Apparatus and method for drop-down/lift-up boat mounted on marine vessel Tsugukiyo Hirayama, Takehiko Takayama 2010-11-09
7555973 Automatic lathe Noriyuki Asahara, Toru Takahashi, Yosuke Ando, Toshiyuki Suzuki, Umeo Tsuyusaki 2009-07-07
7464628 Automatic lathe Hiroshi Shinohara, Toru Takahashi, Yosuke Ando, Hajime Matsumaru 2008-12-16