KK

Kazuo Kawamata

HO Hoya: 1 patents #757 of 1,290Top 60%
📍 Tokyo, CA: #528 of 583 inventorsTop 95%
Overall (All Time): #1,200,306 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9227771 Opener cap Hiromitsu Ueda, Masahiro Takenaka, You Yamamori, Takeshi Sou, Syouzo Fujii 2016-01-05
8481148 Optical device and antireflection film Makoto Adachi, Tsuneo Muraki 2013-07-09
D594394 Visor extender 2009-06-16
D558655 Visor extendor 2008-01-01