Inventor

TANAGAWA KENJI

JP4 patents

⚠️ This page may combine multiple inventors who share the name “TANAGAWA KENJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HOYA CORP

1 patent

US7326375B2Feb 5, 2008

Injection compression molding method and injection compression machine of lens

HOYA CORP7 citations72

HOYA LENS THAILAND LTD

1 patent

US10525645B2Jan 7, 2020

Method for manufacturing functional plastic lens and polarizing plastic lens

HOYA LENS THAILAND LTD2 citations69

NISHIMOTO TATSUO

1 patent

US8506857B2Aug 13, 2013

Injection compression molding method of lens

NISHIMOTO TATSUO0 citations44

SAITO KIYOHIRO

1 patent

US11061258B2Jul 13, 2021

Mold for plastic lens, method for manufacturing plastic lens, and plastic lens for eyeglasses

SAITO KIYOHIRO0 citations41