Inventor

Masaru Sekihara

Inventor
Chiyoda-ku, JP

Overview

14→
Patents
1997–2019
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 14 as inventor

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

F01Dprimary
F01DNon-positive displacement machines or engines, e.g. steam turbines32%
F02CGas-turbine plants24%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants24%
F23RGenerating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers5%
B23PMetal-working not otherwise provided for3%
F04DNon-positive-displacement pumps3%
G06FElectric digital data processing3%
H04LTransmission of digital information, e.g. telegraphic communication3%
Y10TTechnical subjects covered by former us classification3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997–2010Patents assigned to HITACHI LTD (12)· patent assignee history
1997–2006Based in Chiyoda-ku, JP· patent location history
1999Based in Ibaraki, JP· patent location history
2003–2010Based in Hitachi, JP· patent location history
2008Based in Arlington, VA, US· patent location history
2018Patents assigned to MITSUBISHI HITACHI POWER SYS (1)· patent assignee history
2018–2019Based in Tokyo, JP· patent location history
2019Patents assigned to MITSUI BUSSAN SECURE DIRECTIONS INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD121997–2010
MITSUBISHI HITACHI POWER SYS12018
MITSUI BUSSAN SECURE DIRECTIONS INC12019
Locations
LocationPatentsSpan
Chiyoda-ku, JP71997–2006
Hitachi, JP32003–2010
Tokyo, JP22018–2019
Arlington, Virginia, US12008
Ibaraki, JP11999