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Koshiishi Eiji patents

Koshiishi Eiji is listed as an inventor on 19 patents in our database. Major assignees and classification codes are summarized below.

Inventor statistics
MetricValue
InventorKoshiishi Eiji
Total patents19
First publicationJan 8, 2015
Latest publicationFeb 26, 2026

Notable patents

Publications ranked by popularity score, then publication date.

Recent patents

Latest publications not already listed above.

Major assignees

Companies most often associated with this inventor's publications.

Top assignees for this inventor
AssigneePatents
Mitsubishi Gas Chemical Co19

Top CPC classifications

Most common classification codes across this inventor's patents.

Top CPC codes for this inventor
CPCPatents
G02B1/0415
C08G75/0812
G02B1/0419
C08G75/065
C08L81/025