Inventor

Atsuhiko Nitta

Inventor

Yokohama, JP

Overview

1987–1997

Patent span

Chemistry

Primary field (CPC C)

Patents· 19 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C08Fprimary

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds29%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry10%

C07CAcyclic or carbocyclic compounds7%

A01GHorticulture5%

C02FTreatment of water, waste water, sewage, or sludge5%

C07DHeterocyclic compounds5%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients5%

C08LCompositions of macromolecular compounds5%

H05BElectric heating5%

H10KOrganic electric solid-state devices5%

PatentTitleYear

5,624,998'Hardenable composition, aqueous gel and applications'1997 5,519,088'Hardenable composition, aqueous gel and applications thereof'1996 5,306,572'EL element comprising organic thin film'1994 5,292,821'Catonic acrylamide polymers and the applications of these polymers'1994 5,239,014'Cationic acrylamide polymers and the applications of these polymers'1993 5,200,668'Luminescence element'1993 5,155,191'Preparation process of granular polymers'1992 5,039,757'Method of manufacturing cationic acrylamide polymers, cationic acrylamide polymers, and the applications of these polymers'1991 RE033355'Agent for absorbing and releasing water vapor'1990 4,835,312'Production process of N-substituted amide compounds'1989 4,828,710'Method for the extraction of water from macromolecular solutions'1989 4,729,834'Method for adsorbing and desorbing'1988 4,725,499'Polymer-coated solid materials'1988 4,718,899'Urine absorbing and holding material'1988 4,701,283'Process for preparing amidoalkanesulfonic acids'1987 4,683,258'Agent for absorbing and releasing water vapor'1987 4,659,773'Process for preparing amidoalkanesulfonic acids polymers'1987 4,654,177'Hydroxyalkanesulfonic acids and their derivatives and process for preparing same'1987 4,649,219'Unsaturated cyclic amido-substituted ether compounds and preparation process thereof'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1997Patents assigned to MITSUI TOATSU CHEMICALS (18)· patent assignee history

1987–1997Based in Yokohama, JP· patent location history

1991–1994Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUI TOATSU CHEMICALS	18	1987–1997

Locations

Location	Patents	Span
Yokohama, JP	15	1987–1997
Kanagawa, JP	4	1991–1994