YH

Yoichi Hirokawa

TK Tokyo Keiki: 2 patents #33 of 166Top 20%
YK Yoshida Kogyo K.K.: 1 patents #252 of 468Top 55%
📍 Kamakura, JP: #518 of 1,212 inventorsTop 45%
Overall (All Time): #1,656,116 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5369865 Method and apparatus for supplying sliders to slide fastener stringers Tsutomu Hakoi 1994-12-06
4937795 Access alarming method and apparatus for working vehicle Ryohei Motegi, Yukio Yoshida, Junichi Furuki, Tetsuya Ishii, Isao Takiguchi +6 more 1990-06-26
4336594 Automatic steering apparatus for ships Isao Masuzawa, Kanshi Yamamoto 1982-06-22