Inventor

Takuji Okumura

Inventor
Kure, JP

Overview

16→
Patents
1988–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 16 as inventor

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

F02Dprimary
F02DControlling combustion engines13%
Y02TClimate change mitigation technologies related to transportation13%
F02BInternal-combustion piston engines10%
C30BSingle-crystal growth8%
H04NPictorial communication, e.g. television8%
Y10TTechnical subjects covered by former us classification8%
F01LCyclically operating valves for machines or engines5%
F02PIgnition, other than compression ignition, for internal-combustion engines5%
H10NElectric solid-state devices not otherwise provided for5%
C22CAlloys3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1994Patents assigned to KOMATSU MFG CO LTD (3)· patent assignee history
1988–2012Based in Hiratsuka, JP· patent location history
1993–1998Patents assigned to MITA INDUSTRIAL CO LTD (4)· patent assignee history
1993–1994Based in Tondabayashi, JP· patent location history
1994–2007Based in Kanagawa, JP· patent location history
1997–1998Based in Osaka, JP· patent location history
2011–2012Patents assigned to SUMCO TECHXIV CORP (2)· patent assignee history
2012Patents assigned to BANDOH KENICHI (1)· patent assignee history
2019–2020Patents assigned to MAZDA MOTOR (5)· patent assignee history
2019–2020Based in Kure, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MAZDA MOTOR52019–2020
MITA INDUSTRIAL CO LTD41993–1998
KOMATSU MFG CO LTD31988–1994
SUMCO TECHXIV CORP22011–2012
BANDOH KENICHI12012
Locations
LocationPatentsSpan
Kure, JP52019–2020
Hiratsuka, JP31988–2012
Kanagawa, JP21994–2007
Osaka, JP21997–1998
Tondabayashi, JP21993–1994