Inventor

Akira Shimura

Inventor

Hitachi, JP

Overview

1984–2001

Patent span

Mechanical engineering

Primary field (CPC F)

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

G03Gprimary

G03GElectrography18%

F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants16%

F02CGas-turbine plants13%

F23RGenerating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers13%

B41JTypewriters8%

F23NRegulating or controlling combustion8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

G02BOptical elements, systems or apparatus5%

H04NPictorial communication, e.g. television5%

G06KGraphical data reading3%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1984–2001Patents assigned to RICOH KK (9)· patent assignee history

1984–2001Based in Kawasaki, JP· patent location history

1985Based in Tokyo, JP· patent location history

1987Patents assigned to IKEDA KUNIHIKO (1)· patent assignee history

1987Patents assigned to KODAMA YUTAKA (1)· patent assignee history

1987Patents assigned to NIRO MASAICHI (1)· patent assignee history

1987–1998Based in Kanagawa, JP· patent location history

1991–1999Patents assigned to HITACHI LTD (9)· patent assignee history

1991–1999Based in Hitachi, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations