P

Inventor

TOKUNAGA KOICHI

JP12 patents
⚠️ This page may combine multiple inventors who share the name “TOKUNAGA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITSUI CHEMICALS INC

6 patents
US9487475B2Nov 8, 2016

Preparation method of aldehyde compound with limited amount of acrylonitrile

MITSUI CHEMICALS INC1 citations51
US10399930B2Sep 3, 2019

Purification method of aldehyde compound

MITSUI CHEMICALS INC0 citations50
US10399929B2Sep 3, 2019

Purification method of aldehyde compound

MITSUI CHEMICALS INC0 citations50
US9809533B2Nov 7, 2017

Purification method of aldehyde compound

MITSUI CHEMICALS INC0 citations50
US10844010B2Nov 24, 2020

Process for producing (poly)sulfide compound and process for producing episulfide compound

MITSUI CHEMICALS INC0 citations40
US9475760B2Oct 25, 2016

Preparation method of aldehyde compound using a metal compound and a phosphorus compound

MITSUI CHEMICALS INC0 citations40

NEC CORP

2 patents
US7068931B2Jun 27, 2006

Alarm control system and method

NEC CORP35 citations90
US7627256B2Dec 1, 2009

Method and system for wavelength division multiplexed optical signal transmission and optical repeater

NEC CORP2 citations60

MITSUI MINING & SMELTING CO

1 patent
US4040525AAug 9, 1977

Method and apparatus for stacking ingots according to predetermined arrangements

MITSUI MINING & SMELTING CO17 citations72

MESCO INC

1 patent
US4395175AJul 26, 1983

Process for treating scrap anodes and apparatus therefor

MESCO INC4 citations51

FUKATSU NORIHIKO

1 patent
US8183404B2May 22, 2012

Process for producing dicyanonorbornane and zerovalent nickel complex catalyst

FUKATSU NORIHIKO0 citations42

KUMA SHIGETOSHI

1 patent
US8772441B2Jul 8, 2014

Polyurethanes polymerizable composition and method for producing optical resin of the same

KUMA SHIGETOSHI0 citations37