P

Inventor

NARITA YOSHIHIRO

JP8 patents
⚠️ This page may combine multiple inventors who share the name “NARITA YOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IDEMITSU KOSAN CO

4 patents
US4153780AMay 8, 1979

Process for the preparation of polycarbonate with weatherproof property

IDEMITSU KOSAN CO50 citations88
US3974126AAug 10, 1976

Process and apparatus for continuous production of polycarbonates

IDEMITSU KOSAN CO27 citations78
US3945979AMar 23, 1976

Polycarbonate resin compositions with improved transparency

IDEMITSU KOSAN CO23 citations77
US4074864AFeb 21, 1978

Method for producing polycarbonate powder from a polycarbonate solution

IDEMITSU KOSAN CO17 citations67

HITACHI CABLE

1 patent
US4099897AJul 11, 1978

Apparatus for producing foamed plastic insulated wires

HITACHI CABLE17 citations72

MITSUBISHI CHEM IND

1 patent
US4808192AFeb 28, 1989

Process for preparation of water soluble dyes containing lithium sulfonate group or ammonium sulfonate group by cation exchange, neutralization and reverse osmosis

MITSUBISHI CHEM IND5 citations62

HITACHI INT ELECTRIC INC

1 patent
US7190223B2Mar 13, 2007

Amplifier

HITACHI INT ELECTRIC INC2 citations57

RICOH CO LTD

1 patent
US10382536B2Aug 13, 2019

Device management apparatus

RICOH CO LTD0 citations39