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Inventor

Ryou Obara

Inventor
Tokyo, JP

Overview

3→
Patents
2007–2018
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C23Cprimary
C23CCoating metallic material33%
F16JPistons22%
Y10TTechnical subjects covered by former us classification22%
F02FCylinders, pistons or casings, for combustion engines11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
9,885,417'Piston ring'20187,291,384'Piston ring and thermal spray coating used therein, and method for manufacturing thereof'20077,279,227'Spraying piston ring'2007

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007Patents assigned to RIKEN KK (2)· patent assignee history
2007Based in Kashiwazaki, JP· patent location history
2007Based in Niigata, JP· patent location history
2018Patents assigned to HAYASHI TOSHIKATSU (1)· patent assignee history
2018Patents assigned to KK RIKEN (1)· patent assignee history
2018Patents assigned to OBARA RYOU (1)· patent assignee history
2018Patents assigned to SUGIMOTO Kouhei (1)· patent assignee history
2018Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RIKEN KK22007
HAYASHI TOSHIKATSU12018
KK RIKEN12018
OBARA RYOUself12018
SUGIMOTO Kouhei12018
Locations
LocationPatentsSpan
Tokyo, JP12018
Kashiwazaki, JP12007
Niigata, JP12007