Inventor

Chuichi Saito

Inventor

Katsuta, JP

Overview

1976–2002

Patent span

Performing operations

Primary field (CPC B)

Patents· 19 as inventor

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

B66Bprimary

B66BElevators82%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%

B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material5%

B21HMaking particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls5%

PatentTitleYear

6,390,270'Escalator'2002 6,247,574'Escalator installation method'2001 5,526,919'Escalator apparatus and method of operation'1996 5,386,904'Escalator apparatus and method of operation'1995 5,348,131'Drive unit of conveyor'1994 5,295,568'Passenger conveyor and treadboard construction for passenger conveyor'1994 5,291,982'Passenger conveyor, platform floor for passenger conveyor, and comb for platform floor'1994 D0344384'Escalator control box'1994 5,178,254'Passenger conveyor'1993 5,160,009'Passenger conveyor and moving handrail for passenger conveyor and manufacturing method therefor'1992 5,135,097'People mover apparatus'1992 5,040,659'Indicating apparatus for passenger conveyor, indicating body used therefor and method of assembling the apparatus'1991 4,984,673'Step of passenger conveyor method of manufacturing same, and wavy metal plate'1991 4,871,056'Balustrade for passenger conveyer'1989 4,819,781'Passenger conveyor with unitary balustrade panel support members'1989 4,627,527'Balustrade for passenger conveyor'1986 4,598,811'Balustrade for a passenger conveyor'1986 4,449,623'Passenger conveyor balustrade'1984 3,934,699'Handrail safety device'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2002Patents assigned to HITACHI LTD (19)· patent assignee history

1976–1996Based in Katsuta, JP· patent location history

1989–1991Patents assigned to HITACHI ELEVATOR ENG (2)· patent assignee history

1992Patents assigned to HITACHI CABLE (1)· patent assignee history

1996Patents assigned to HITACHI MITO ENG KK (1)· patent assignee history

2001–2002Patents assigned to HITACHI BUILDING SYS CO LTD (2)· patent assignee history

2001Based in Tokyo, JP· patent location history

2002Based in Hitachinaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	19	1976–2002
HITACHI BUILDING SYS CO LTD	2	2001–2002
HITACHI ELEVATOR ENG	2	1989–1991
HITACHI CABLE	1	1992
HITACHI MITO ENG KK	1	1996

Locations

Location	Patents	Span
Katsuta, JP	17	1976–1996
Hitachinaka, JP	1	2002
Tokyo, JP	1	2001