LexDanaLexDanabeta
Inventor

Katsuhiko Sakura

Inventor
Kitakyushu, JP

Overview

4→
Patents
1994–2002
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds67%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
PatentTitleYear
6,491,795'Process for recovering benzyl benzoate'20026,329,556'Process for preparing bisphenol A'20015,371,302'Process for preparing prilled bisphenol A'19945,300,699'Process for preparing bisphenol A of good heat stability'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2002Patents assigned to NIPPON STEEL CHEMICAL CO (4)· patent assignee history
1994Patents assigned to CHIYODA CHEM ENG CONSTRUCT CO (2)· patent assignee history
1994–2002Based in Kitakyushu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON STEEL CHEMICAL CO41994–2002
CHIYODA CHEM ENG CONSTRUCT CO21994
Locations
LocationPatentsSpan
Kitakyushu, JP41994–2002