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Inventor

Keigo Iwashita

Inventor
Tokyo, JP

Overview

1→
Patents
1976
Patent span
Performing operations
Primary field (CPC B)

Patents· 1 as inventor

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

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry50%
C02FTreatment of water, waste water, sewage, or sludge50%
PatentTitleYear
3,994,830'Process for the production of adsorbents of nitrohumic acid series with an improved alkali-resistance'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to AGENCY IND SCIENCE TECHN (1)· patent assignee history
1976Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AGENCY IND SCIENCE TECHN11976
Locations
LocationPatentsSpan
Tokyo, JP11976