Inventor

Katsuaki Matsui

Inventor

Tokyo, JP

Overview

11→

Patents

1976–1980

Patent span

Chemistry

Primary field (CPC C)

Patents· 11 as inventor

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

C08Kprimary

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients48%

C07DHeterocyclic compounds29%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium19%

C09KMaterials for miscellaneous applications, not provided for elsewhere5%

PatentTitleYear

4,241,208'Piperidine derivatives'1980 4,212,974'Piperidine derivatives'1980 4,125,533'Piperidine derivatives'1978 4,066,615'Polymer compositions containing piperidine derivatives as stabilizers'1978 4,016,168'Piperidine derivatives'1977 4,007,158'Novel piperidine derivatives for the stabilization of synthetic polymers'1977 4,005,094'Piperidine-spiro-hydantoin derivatives'1977 3,975,462'Piperidine-spiro-hydantoin derivatives and their use as stabilizers'1976 3,941,744'Piperidine derivatives and their use as stabilizers'1976 3,940,401'4,4-(O-phenylenedioxy)-2,2,6,6-tetramethyl piperidine'1976 3,933,735'4-Piperidone derivatives, their preparation and their use as stabilizers'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1980Patents assigned to SANKYO CO (11)· patent assignee history

1976–1978Based in Tokyo, JP· patent location history

1976Based in Hiro, JA· patent location history

1980Based in Hiromachi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SANKYO CO	11	1976–1980

Locations

Location	Patents	Span
Tokyo, JP	8	1976–1978
Hiromachi, JP	2	1980
Hiro, JA	1	1976