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Inventor

Akiya Yamashita

Inventor
Ibaraki, JP

Overview

2→
Patents
1987
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.

B01Dprimary
B01DSeparation33%
C01GCompounds containing metals not covered by subclasses c01d or c01f33%
C22BProduction and refining of metals33%
PatentTitleYear
4,710,215'Process for distillation-crystallization of zinc carbonate'19874,689,146'System for dissolution-purification of Zn-containing materials'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to SUMITOMO METAL IND (2)· patent assignee history
1987Patents assigned to TSUKISHIMA KIKAI CO (2)· patent assignee history
1987Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO METAL IND21987
TSUKISHIMA KIKAI CO21987
Locations
LocationPatentsSpan
Ibaraki, JP21987