Inventor

Nobuaki Ohkawa

Inventor
Tokyo, JP

Overview

2→
Patents
1992–1998
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C07Fprimary
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium29%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds29%
C08JWorking-up14%
Y02PClimate change mitigation technologies in the production or processing of goods14%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management14%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1998Patents assigned to TOSHIBA SILICONE (2)· patent assignee history
1992Based in Gunma, JP· patent location history
1998Patents assigned to TAMA CHEMICALS CO LTD (1)· patent assignee history
1998Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOSHIBA SILICONE21992–1998
TAMA CHEMICALS CO LTD11998
Locations
LocationPatentsSpan
Tokyo, JP11998
Gunma, JP11992