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Inventor

Tomotaka Kariya

Inventor
Saitama, JP

Overview

4→
Patents
2010–2012
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 4 as inventor

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

F16Jprimary
F16JPistons50%
C23CCoating metallic material38%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
8,240,676'Piston ring'20128,181,968'Piston ring'20128,088,496'Piston ring'20127,854,191'Three-piece oil ring and combination of the three-piece oil ring and piston'2010

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2010–2012Patents assigned to NIPPON PISTON RING CO LTD (3)· patent assignee history
2010–2012Based in Saitama, JP· patent location history
2012Patents assigned to KARIYA TOMOTAKA (3)· patent assignee history
2012Patents assigned to STT INC (3)· patent assignee history
2012Patents assigned to TSURUTA MAKOTO (3)· patent assignee history
2012Patents assigned to ISHIKAWA HIROMI (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KARIYA TOMOTAKAself32012
NIPPON PISTON RING CO LTD32010–2012
STT INC32012
TSURUTA MAKOTO32012
ISHIKAWA HIROMI22012
Locations
LocationPatentsSpan
Saitama, JP42010–2012