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Sumikawa Ryuichi patents

Sumikawa Ryuichi is listed as an inventor on 47 patents in our database. Major assignees and classification codes are summarized below.

Inventor statistics
MetricValue
InventorSumikawa Ryuichi
Total patents47
First publicationMay 25, 2017
Latest publicationAug 12, 2025

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
Subaru Corp44
Fuji Heavy Ind Ltd6

Top CPC classifications

Most common classification codes across this inventor's patents.

Top CPC codes for this inventor
CPCPatents
B60K35/0018
B60R2300/20518
B60K35/8118
B60K35/2918
B60K35/2816