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Inventor

Tatsuo Shirahata

Inventor
Ichihara, JP

Overview

5→
Patents
1990–2015
Patent span
Chemistry
Primary field (CPC C)

Patents· 5 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds50%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry20%
Y02PClimate change mitigation technologies in the production or processing of goods20%
C07BGeneral methods of organic chemistry10%
PatentTitleYear
9,029,609'Phenol purification process'20158,283,504'Process for producing 2-propanol'20125,998,677'Process for the production of phenol'19995,264,636'Process for producing highly pure phenol'19934,960,958'Catalysts for catalytic pyrolysis of phenol distillation residue and process for recovering useful substances by pyrolysis the same'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1993Patents assigned to MITSUI PETROCHEMICAL IND (2)· patent assignee history
1990–1999Based in Chiba, JP· patent location history
1993–2015Based in Ichihara, JP· patent location history
1999–2015Patents assigned to MITSUI CHEMICALS INC (3)· patent assignee history
2012Patents assigned to DOI KENJI (1)· patent assignee history
2012Patents assigned to HIGASHI KATSUNARI (1)· patent assignee history
2012Patents assigned to MORIZANE KUNIHIKO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUI CHEMICALS INC31999–2015
MITSUI PETROCHEMICAL IND21990–1993
DOI KENJI12012
HIGASHI KATSUNARI12012
MORIZANE KUNIHIKO12012
Locations
LocationPatentsSpan
Ichihara, JP31993–2015
Chiba, JP21990–1999