Inventor
ISHIZUKA HIROHITO
JP8 patents
⚠️ This page may combine multiple inventors who share the name “ISHIZUKA HIROHITO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI GAS CHEMICAL CO
6 patentsUS9360593B2Jun 7, 2016
Polycarbonate resin, production method therefor, and optical molded body
MITSUBISHI GAS CHEMICAL CO18 citations91
US10689486B2Jun 23, 2020
Resin produced by polycondensation, and resin composition
MITSUBISHI GAS CHEMICAL CO2 citations72
US11370882B2Jun 28, 2022
Resin produced by polycondensation, and resin composition
MITSUBISHI GAS CHEMICAL CO0 citations61
US9458293B2Oct 4, 2016
Method for producing composition for optical material
MITSUBISHI GAS CHEMICAL CO2 citations61
US9982129B2May 29, 2018
Polycarbonate resin composition, and optical material and optical lens each manufactured using same
MITSUBISHI GAS CHEMICAL CO0 citations51
US9321887B2Apr 26, 2016
Polyformal resin copolymer and method for producing the same
MITSUBISHI GAS CHEMICAL CO0 citations41