Inventor

Hirokazu Hosaka

Inventor

Minoo, JP

Overview

1976–1982

Patent span

Chemistry

Primary field (CPC C)

Patents· 12 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds86%

B01DSeparation7%

Y02PClimate change mitigation technologies in the production or processing of goods7%

PatentTitleYear

4,336,109'Method for the recovery of acetone'1982 4,308,110'Process for separation and purification of dihydric phenols'1981 4,059,637'Method for extraction of dihydroperoxide'1977 4,049,720'Process for producing .beta.-isopropyl-naphthalene hydroperoxide'1977 4,044,052'Process for recovery of urea from its phenolic solution'1977 4,032,581'Method for separation of m- or p-cresol'1977 4,021,495'Purification of .beta.-naphthol'1977 3,969,420'Process for recovering resorcinol and hydroquinone in mixture'1976 3,953,521'Process for the continuous production of dihydroperoxides'1976 3,950,431'Process for removing impurities in an oxidation mixture'1976 3,933,921'Process for the production of hydroperoxides'1976 3,932,528'Process for the separation of dihydroperoxides'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1982Patents assigned to SUMITOMO CHEMICAL CO (12)· patent assignee history

1976–1977Based in Minoo, JP· patent location history

1977Based in Hirakata, JP· patent location history

1981–1982Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SUMITOMO CHEMICAL CO	12	1976–1982

Locations

Location	Patents	Span
Minoo, JP	7	1976–1977
Hirakata, JP	3	1977
Ibaraki, JP	2	1981–1982