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Inventor

Kazutaka Maruyama

Inventor
Tokyo, JP

Overview

5→
Patents
2002–2018
Patent span
Performing operations
Primary field (CPC B)

Patents· 5 as inventor

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

Y10Tprimary
Y10TTechnical subjects covered by former us classification33%
B23FMaking gears or toothed racks25%
B21KMaking forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels8%
B23PMetal-working not otherwise provided for8%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling8%
C07DHeterocyclic compounds8%
F01LCyclically operating valves for machines or engines8%
PatentTitleYear
9,868,169'Gear-cutting machine'20189,108,257'Gear shaping machine'20158,651,775'Vibration-reduction mechanism for gear cutting machine'20148,561,297'Method for producing engine valve in which sodium metal is sealed'20136,429,316'Process for preparing pyrrolidone derivative'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002Patents assigned to MITSUBISHI CHEM CORP (1)· patent assignee history
2002Based in Okayama, JP· patent location history
2013–2015Patents assigned to MARUYAMA KAZUTAKA (3)· patent assignee history
2013–2015Patents assigned to MITSUBISHI HEAVY IND LTD (3)· patent assignee history
2013Patents assigned to MORII HIROKAZU (1)· patent assignee history
2013–2018Based in Tokyo, JP· patent location history
2014Based in Ritto, JP· patent location history
2018Patents assigned to MITSUBISHI HEAVY IND MACHINE TOOL CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MARUYAMA KAZUTAKAself32013–2015
MITSUBISHI HEAVY IND LTD32013–2015
MITSUBISHI CHEM CORP12002
MITSUBISHI HEAVY IND MACHINE TOOL CO LTD12018
MORII HIROKAZU12013
Locations
LocationPatentsSpan
Tokyo, JP32013–2018
Ritto, JP12014
Okayama, JP12002