KH

Katsushi Hamakubo

HO Hoya: 2 patents #17 of 128Top 15%
WP Wd Media (Singapore) Pte.Ltd.: 1 patents #2 of 10Top 20%
Overall (2016): #66,765 of 481,213Top 15%
3
Patents 2016

Issued Patents 2016

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9500774 Plastic lens and production method therefor Kae Ito 2016-11-22
9322968 Polarizing lens Eiichi Yajima, Kae Ito 2016-04-26
9245568 Magnetic disk and method of manufacturing the same Kae Itoh 2016-01-26