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Inventor

Shigeru Eimaeda

Inventor
Tomakomai, JP

Overview

2→
Patents
1988
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.

C01Pprimary
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds25%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties25%
D21CProduction of cellulose by removing non-cellulose substances from cellulose-containing materials25%
D21HPulp compositions25%
PatentTitleYear
4,790,486'Process for preparation of paper-making hydrous silicic acid filler'19884,764,252'Process for pulping lignocellulosic material with a preoxidized alkaline sulfide pulping liquor containing a cyclic organic compound'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to OJI PAPER CO (2)· patent assignee history
1988Based in Tomakomai, JP· patent location history
1988Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OJI PAPER CO21988
Locations
LocationPatentsSpan
Tomakomai, JP11988
Tokyo, JP11988