Inventor

Nobuo Soma

Inventor

Hiromachi, JP

Overview

16→

Patents

1976–1983

Patent span

Chemistry

Primary field (CPC C)

Patents· 16 as inventor

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

C07Dprimary

C07DHeterocyclic compounds36%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients36%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium9%

C08LCompositions of macromolecular compounds9%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%

G03CPhotosensitive materials for photographic purposes3%

PatentTitleYear

4,413,076'Polyalkylpiperdine side chain stabilizers for synthetic polymer compositions'1983 4,371,644'Piperidine derivatives and their use as polymer stabilizers'1983 4,265,803'Polymers containing polyalkylpiperidines and use thereof as stabilizers'1981 4,237,294'2,2,6,6-Tetramethylpiperidine derivatives'1980 4,219,465'Piperidine-spiro-hydantoin derivatives and their use as polymer stabilizers'1980 4,191,683'Derivatives of 4-aminopiperidine as stabilizers for polymers'1980 4,166,813'Polyalkylated 4-aminopiperidine derivatives'1979 4,162,246'Hydantoin derivatives and their use as polymer stabilizers'1979 4,141,883'Stabilization of synthetic polymers by penta-or-hexa-substituted 4-piperidinol derivatives'1979 4,131,599'Stabilization of poly(mono-olefins)'1978 4,118,368'Synthetic polymer stabilizers'1978 4,105,626'Derivatives of 4-oxopiperidines and their use as polymer stabilizers'1978 4,097,587'1,3,8-Triazaspiro›4.5!decane-2,4-dione polymer stabilizers'1978 4,075,165'Stabilization of polymers by penta- or hexa-substituted 4-piperidinol derivatives'1978 4,055,536'4,4\'-Bipiperidylidene derivatives and their use as stabilizers'1977 3,951,661'Silver halide emulsion containing an arylphosphonium salt as antifoggant'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to KONISHIROKU PHOTO IND (1)· patent assignee history

1976Based in Hiro, JA· patent location history

1977–1983Patents assigned to SANKYO CO (13)· patent assignee history

1977–1980Based in Tokyo, JP· patent location history

1978–1980Patents assigned to CIBA GEIGY CORP (3)· patent assignee history

1978–1983Based in Hiromachi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SANKYO CO	13	1977–1983
CIBA GEIGY CORP	3	1978–1980
KONISHIROKU PHOTO IND	1	1976

Locations

Location	Patents	Span
Hiromachi, JP	8	1978–1983
Tokyo, JP	7	1977–1980
Hiro, JA	1	1976