KT

Katsuya Takeshi

YC Yamamoto Kogaku Co.: 6 patents #9 of 58Top 20%
Overall (All Time): #864,247 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8292425 Eyeglasses 2012-10-23
7895679 Goggles Rintaro Inui 2011-03-01
D602065 Goggles Rintaro Inui 2009-10-13
7490365 Swimming goggles Katsumi Matsumoto, Hirofumi Tominaga 2009-02-17
7490934 Eyewear end piece Kazuto Yasuhara 2009-02-17
6845521 Length adjusting mechanism of goggles Keiko Nishida 2005-01-25